parcel | 📦🚀 | Build Tool library
kandi X-RAY | parcel Summary
Support
Quality
Security
License
Reuse
- Creates the baseGraph for the bundle and the bundle graph .
- Process the given pipeline .
- Validates the given Swagger schema
- Replace all modules with a given name .
- Decorates the bundle graph to an existing bundle graph .
- Initialize the loader .
- Asserts that the targets are not installed .
- Report reporter .
- Modifies the imports of modules into a module .
- Loads a configuration from a config file .
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parcel Examples and Code Snippets
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module.exports = { plugins: [ require('autoprefixer'), require('postcss-nested') ] }
@Override public Optional getParcelByOrderId(int orderId) { return Optional.ofNullable(this.shippedParcels.get(orderId)); }Trending Discussions on parcel
Trending Discussions on parcel
QUESTION
So I have an android app which opens and displays PDF's, I have the user select pdfs like this
fun openFile() {
val intent = Intent(Intent.ACTION_OPEN_DOCUMENT).apply {
addCategory(Intent.CATEGORY_OPENABLE)
type = "application/pdf"
putExtra(Intent.EXTRA_MIME_TYPES, arrayOf("application/pdf"))
putExtra(DocumentsContract.EXTRA_INITIAL_URI, MediaStore.Files.getContentUri("external"))
}
activity?.startActivityForResult(intent, REQUEST_CODE_PDF_FILE)
}
And then I retrieve the URI from the activity result display it and save the URI. However the next time the app is opened I want to be open that same file, right now when I try opening the saved URI I get the following:
ava.lang.SecurityException: Permission Denial: opening provider com.android.providers.media.MediaDocumentsProvider from ProcessRecord{c3dfcb2 32587:ca.thing.testapp/u0a237} (pid=32587, uid=10237) requires that you obtain access using ACTION_OPEN_DOCUMENT or related APIs
at android.os.Parcel.createExceptionOrNull(Parcel.java:2425)
at android.os.Parcel.createException(Parcel.java:2409)
at android.os.Parcel.readException(Parcel.java:2392)
at android.os.Parcel.readException(Parcel.java:2334)
at android.app.IActivityManager$Stub$Proxy.getContentProvider(IActivityManager.java:5850)
at android.app.ActivityThread.acquireProvider(ActivityThread.java:6973)
So clearly after closing and reopening the app I no longer have permission to use that selected file. So I imagine what I need to do is make a copy of that file into some cache dir that I do have permissions in so that I can display it when the app is reopened. How would I go about doing that?
ANSWER
Answered 2022-Mar-01 at 18:11You should take persistable uri permission in onActivityResult in order to use the uri later.
Making a copy is not needed.
QUESTION
I'm trying to implement my own NFT-contract, following this tutorial on NEAR, and the Non-Fungible Token (NEP-171) specifications. The tutorial is in Rust, but I'm trying to do something similar with AssemblyScript. I thought if I implemented the methods with the correct names and signature, it would be possible for the NEAR wallet to call the respective methods (e.g. nft_tokens_for_owner) on my NFT-contract. I'm just wondering if I'm missing something, or if I have the wrong understanding on how it's suppose to work.
I have minted one NFT-token, using the nft_mint method in my contract, using my own testnet account. The transaction can be found here. However, the NFT is not displayed in the "Collectibles" tab in my testnet wallet.
My contract (index.ts) looks like this:
import { PersistentMap } from 'near-sdk-as';
import { Token, TokenMetadata } from './reit-token';
@nearBindgen
class NFTContractMetadata {
spec: string; // required, essentially a version like "nft-1.0.0"
name: string; // required, ex. "Mochi Rising — Digital Edition" or "Metaverse 3"
symbol: string; // required, ex. "MOCHI"
icon: string | null; // Data URL
base_uri: string | null; // Centralized gateway known to have reliable access to decentralized storage assets referenced by `reference` or `media` URLs
reference: string | null; // URL to a JSON file with more info
reference_hash: string | null; // Base64-encoded sha256 hash of JSON from reference field. Required if `reference` is included.
}
@nearBindgen
export class Contract {
//keeps track of the metadata for the contract
metadata: NFTContractMetadata = {
spec: 'reit-token-0.0.0',
name: 'Reit Token',
symbol: 'REIT',
icon: null,
base_uri: null,
reference: null,
reference_hash: null,
};
//contract owner
owner_id: string; // Not sure if this is relevant for the contract itself
//keeps track of all the token IDs for a given account
tokens_per_owner: PersistentMap> = new PersistentMap<
string,
Array
>('tokens_pr_owner');
//keeps track of the token struct for a given token ID
tokens_by_id: PersistentMap = new PersistentMap(
'tokens_by_id'
);
//keeps track of the token metadata for a given token ID
token_metadata_by_id: PersistentMap =
new PersistentMap('token_metadata_by_id');
nft_tokens_for_owner(account_id: string): Array {
const tokenIds: string[] = this.tokens_per_owner.getSome(account_id);
const tokens: Array = new Array();
for (let i = 0; i < tokenIds.length; ++i) {
const token: Token = this.tokens_by_id.getSome(tokenIds[i]);
tokens.push(token);
}
return tokens;
}
nft_mint(
token_id: string,
metadata: TokenMetadata,
receiver_id: string
): void {
// assert(
// this.tokens_by_id.contains(token_id),
// 'ID is already taken, create new ID'
// );
const token = new Token(token_id, metadata, receiver_id);
const tokens: Array = new Array();
tokens.push(token_id);
this.tokens_per_owner.set(receiver_id, tokens);
this.tokens_by_id.set(token_id, token);
this.token_metadata_by_id.set(token_id, token.metadata);
}
Inside reit-token.ts
import { ContractPromise } from 'near-sdk-as';
// implementation based on NEP-171
// https://nomicon.io/Standards/NonFungibleToken/Core.html
@nearBindgen
export class TokenMetadata {
title: string; // ex. "Arch Nemesis: Mail Carrier" or "Parcel #5055"
description: string; // free-form description
media: string; // URL to associated media, preferably to decentralized, content-addressed storage
media_hash: string; // Base64-encoded sha256 hash of content referenced by the `media` field. Required if `media` is included.
copies: number; // number of copies of this set of metadata in existence when token was minted.
issued_at: number; // When token was issued or minted, Unix epoch in milliseconds
expires_at: number; // When token expires, Unix epoch in milliseconds
starts_at: number; // When token starts being valid, Unix epoch in milliseconds
updated_at: number; // When token was last updated, Unix epoch in milliseconds
extra: string; // anything extra the NFT wants to store on-chain. Can be stringified JSON.
reference: string; // URL to an off-chain JSON file with more info.
reference_hash: string; // Base64-encoded sha256 hash of JSON from reference field. Required if `reference` is included.
}
@nearBindgen
export class Token {
id: string;
owner_id: string;
metadata: TokenMetadata;
constructor(token_id: string, metadata: TokenMetadata, receiver_id: string) {
this.id = token_id;
this.metadata = metadata;
this.owner_id = receiver_id;
}
}
@nearBindgen
export class ReitToken {
token: Token;
constructor(token_id: string, metadata: TokenMetadata, receiver_id: string) {
this.token = { id: token_id, metadata: metadata, owner_id: receiver_id };
}
// --- view methods --- //
nft_token(): Token {
return this.token;
}
// --- change methods --- //
nft_transfer(
receiver_id: string,
token_id: string,
approval_id: number,
memo: string
): void {
// assert(false, 'nft_transfer not implemented');
}
nft_transfer_call(
receiver_id: string,
token_id: string,
approval_id: number,
memo: string,
msg: string
): ContractPromise {
// assert(false, 'nft_transfer_call not implemented');
return ContractPromise.create('', '', {}, 1);
}
}
ANSWER
Answered 2022-Jan-19 at 13:48After asking around, I was pointed to two different GitHub repositories that implemented an NFT-token smart contract in AssemblyScript.
- https://github.com/dOrgTech/proof-of-attendance
- https://github.com/vgrichina/humanguild-nft/tree/lisbon
After going through those repositories, I noticed that my contract wasn't that far off to be able to display my NFT-tokens in the wallet. I had to implement one more function, nft_metadata().
I did have metadata in my contract, but as a variable, metadata. Returning the same metadata in nft_metadata() seemed to do the trick
@nearBindgen
class NFTContractMetadata {
constructor(
public spec: string = 'reit-token-0.0.0', // required, essentially a version like "nft-1.0.0"
public name: string = 'Reit Token', // required, ex. "Mochi Rising — Digital Edition" or "Metaverse 3"
public symbol: string = 'REIT', // required, ex. "MOCHI"
public icon: string = '', // Data URL
public base_uri: string = '', // Centralized gateway known to have reliable access to decentralized storage assets referenced by `reference` or `media` URLs
public reference: string = '', // URL to a JSON file with more info
public reference_hash: string = '' // Base64-encoded sha256 hash of JSON from reference field. Required if `reference` is included.
) {}
}
@nearBindgen
export class Contract {
// ...
nft_metadata(): NFTContractMetadata {
return new NFTContractMetadata();
}
// ...
}
I did override my existing NFT with a new one (transaction found here) while testing, and here it is, visible in the NEAR testnet wallet
QUESTION
I'm new in Android Kotlin and I want to GET an array of help in Firestore into my entity and this is my code:
val appCollection = App.context.db.collection("app")
val docApp = appCollection.document("info")
docApp.get().addOnCompleteListener { task ->
if (task.isSuccessful) {
val document = task.result
if (document.exists()) {
val list = document["help"] as List<*>?
}
}
}
how can i put that list into my entity, and this is my Entity
class Info() : Parcelable{
var help: List? = null
var howto: List? = null
var info: List? = null
ANSWER
Answered 2022-Jan-14 at 07:52As I see in your screenshot, your help array contains objects of type String and not objects of type Help. To read such an array, please change the following field declaration from:
var help: List? = null
To:
var help: List? = null
If you however need to store Help in the array, then you need to first add such objects accordingly. So your structure might look like this:
Firestore-root
|
--- app (collection)
|
--- info (document)
|
--- help (array)
|
--- 0
|
--- fieldOne: valueOne
|
--- fieldTwo: valueOTwo
To map such an array to a List of custom objects, please check the following article:
QUESTION
I noticed one exception (Firebase Crashlytics) for Pixel 5 and Pixel 4a (both on Android 12), no other devices, happened only two times, one time for each device.
What does it mean? Android 11 and 12 have the same rules for working with foreground services, but there are no issues with Android 11. Is this a bug of Pixel?
From Firebase Crashlytics:
Fatal Exception: android.app.ForegroundServiceStartNotAllowedException
startForegroundService() not allowed due to mAllowStartForeground false: service com.helge.droiddashcam/.service.RecorderService
android.app.ForegroundServiceStartNotAllowedException$1.createFromParcel (ForegroundServiceStartNotAllowedException.java:54)
androidx.core.content.ContextCompat.startForegroundService (ContextCompat.java:6)
MyAppPackageHidden.service.RecorderService$Companion.startService (RecorderService.java:2)
MyAppPackageHidden.ui.rec.RecActivity$getConnectionRecorderService$1.onServiceConnected (RecActivity.java:4)
android.app.LoadedApk$ServiceDispatcher.doConnected (LoadedApk.java:2077)
com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1003)
Fatal Exception: android.app.ForegroundServiceStartNotAllowedException: startForegroundService() not allowed due to mAllowStartForeground false: service MyAppPackageHidden/.service.RecorderService
at android.app.ForegroundServiceStartNotAllowedException$1.createFromParcel(ForegroundServiceStartNotAllowedException.java:54)
at android.app.ForegroundServiceStartNotAllowedException$1.createFromParcel(ForegroundServiceStartNotAllowedException.java:50)
at android.os.Parcel.readParcelable(Parcel.java:3333)
at android.os.Parcel.createExceptionOrNull(Parcel.java:2420)
at android.os.Parcel.createException(Parcel.java:2409)
at android.os.Parcel.readException(Parcel.java:2392)
at android.os.Parcel.readException(Parcel.java:2334)
at android.app.IActivityManager$Stub$Proxy.startService(IActivityManager.java:5971)
at android.app.ContextImpl.startServiceCommon(ContextImpl.java:1847)
at android.app.ContextImpl.startForegroundService(ContextImpl.java:1823)
at android.content.ContextWrapper.startForegroundService(ContextWrapper.java:779)
at androidx.core.content.ContextCompat$Api26Impl.startForegroundService(ContextCompat.java)
at androidx.core.content.ContextCompat.startForegroundService(ContextCompat.java:6)
at MyAppPackageHidden.service.RecorderService$Companion.startService(RecorderService.java:2)
at MyAppPackageHidden.ui.rec.RecActivity$getConnectionRecorderService$1.onServiceConnected(RecActivity.java:4)
at android.app.LoadedApk$ServiceDispatcher.doConnected(LoadedApk.java:2077)
at android.app.LoadedApk$ServiceDispatcher$RunConnection.run(LoadedApk.java:2110)
at android.os.Handler.handleCallback(Handler.java:938)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loopOnce(Looper.java:201)
at android.os.Looper.loop(Looper.java:288)
at android.app.ActivityThread.main(ActivityThread.java:7838)
at java.lang.reflect.Method.invoke(Method.java)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1003)
Caused by android.os.RemoteException: Remote stack trace:
at com.android.server.am.ActiveServices.startServiceLocked(ActiveServices.java:691)
at com.android.server.am.ActiveServices.startServiceLocked(ActiveServices.java:616)
at com.android.server.am.ActivityManagerService.startService(ActivityManagerService.java:11839)
at android.app.IActivityManager$Stub.onTransact(IActivityManager.java:2519)
at com.android.server.am.ActivityManagerService.onTransact(ActivityManagerService.java:2498)
ANSWER
Answered 2022-Jan-11 at 12:43Apps that target Android 12 (API level 31) or higher can't start foreground services while running in the background, except for a few special cases. If an app tries to start a foreground service while the app is running in the background, and the foreground service doesn't satisfy one of the exceptional cases, the system throws a ForegroundServiceStartNotAllowedException.
Exemptions from background start restrictions
In the following situations, your app can start foreground services even while your app is running in the background:
- Your app transitions from a user-visible state, such as an activity.
- Your app can start an activity from the background, except for the case where the app has an activity in the back stack of an existing task.
- Your app receives a high-priority message using Firebase Cloud Messaging.
- The user performs an action on a UI element related to your app. For example, they might interact with a bubble, notification, widget, or activity.
- Your app invokes an exact alarm to complete an action that the user requests.
- Your app is the device's current input method.
- Your app receives an event that's related to geofencing or activity recognition transition.
- After the device reboots and receives the ACTION_BOOT_COMPLETED, ACTION_LOCKED_BOOT_COMPLETED, or ACTION_MY_PACKAGE_REPLACED intent action in a broadcast receiver.
QUESTION
I have some data that occasionally has data removed, and added. This doesn't often, but can, happen in quick succession.
I've found that the dataGroups.exit().transition()....remove() 'overrides' the enter dataGroups.enter(...).append(...).transition().
It seems when an item is being removed, then 'enters' again, it fails to stop the removal process, so the item gets left either removed, or in the removed state (e.g. transparent or size 0).
Here's a working example, click the button slowly and it works as expected, but too fast and you'll get the lower bar missing when it should be there.
I've tried adding interupt() to try interrupt the exit animation but it doesn't seem to work. Can't find any reference to this, but I'm surprised it's not an issue someone has seen before and come up with a solution:
const dataset1 = [
{ name: "item 1", value: 200 },
{ name: "item 2", value: 100 }
];
const dataset2 = [{ name: "item 1", value: 100 }];
let currentDataset = undefined;
function refresh() {
const newDataset = currentDataset === dataset1 ? dataset2 : dataset1;
currentDataset = newDataset;
// Join new data with old elements, if any.
const dataGroups = d3
.select(".vis")
.selectAll(".box")
.data(newDataset, (d) => d.name);
// Remove old elements as needed.
dataGroups
.exit()
.transition("remove")
.duration(400)
.attr("opacity", 0.2)
.remove();
// Create new elements as needed.
const newGroups = dataGroups
.enter()
.append("rect")
.attr("class", "box")
.attr("height", 10);
newGroups.transition("add").duration(400).attr("opacity", 1);
// Merge and update
newGroups
.merge(dataGroups)
.attr("width", (d) => d.value)
.attr("y", (d, i) => i * 12);
}
document.getElementById("button").onclick = () => {
refresh();
};
Parcel Sandbox
Update data
Click the button slowly, and see it add and remove elements with a
transition
Click the button twice in quick succession, and see it doesn't correctly
represent the data
It should look like:
|====
|==
Or:
|==
|
Never:
|====
|
ANSWER
Answered 2022-Jan-06 at 11:28First of all, it should be noticed that D3 selections are immutable, so using merge on your enter selection the way you're doing has no effect. Also, you should set the opacity of the enter selection to 0 if you want to properly see the transition.
Back to the question, the problem here is that the exiting bar is counted when you select all elements with box class, and because of that your enter selection is empty. The simplest solution is using selection.interrupt(). Contrary to what you said interrupt does work, but the issue is just that because you named your exit transition, you need to use the same name:
dataGroups.interrupt("remove");
Here is your code with that change:
const dataset1 = [{
name: "item 1",
value: 200
},
{
name: "item 2",
value: 100
}
];
const dataset2 = [{
name: "item 1",
value: 100
}];
let currentDataset = undefined;
function refresh() {
const newDataset = currentDataset === dataset1 ? dataset2 : dataset1;
currentDataset = newDataset;
// Join new data with old elements, if any.
let dataGroups = d3
.select(".vis")
.selectAll(".box")
.data(newDataset, (d) => d.name);
dataGroups.interrupt("remove");
dataGroups.attr("opacity", 1);
// Remove old elements as needed.
dataGroups
.exit()
.transition("remove")
.duration(400)
.attr("opacity", 0.2)
.remove();
// Create new elements as needed.
const newGroups = dataGroups
.enter()
.append("rect")
.attr("class", "box")
.attr("height", 10)
.attr("opacity", 0)
newGroups.transition("add").duration(400).attr("opacity", 1);
// Merge and update
dataGroups = newGroups.merge(dataGroups);
dataGroups.attr("width", (d) => d.value)
.attr("y", (d, i) => i * 12);
}
document.getElementById("button").onclick = () => {
refresh();
};
Parcel Sandbox
Update data
Click the button slowly, and see it add and remove elements with a transition
Click the button twice in quick succession, and see it doesn't correctly represent the data
It should look like:
|====
|==
Or:
|==
|
Never:
|====
|
Also, I put a dataGroups.attr("opacity", 1); just after interrupting the transition, so we return the opacity of the fading bar to 1.
QUESTION
I've recently stumbled upon a runtime error that crashes my application for whatever reason and I cannot get to the bottom of it. Basically I am updating user profile data by storing it in a hashmap. This is what the user class looks like:
@Parcelize
data class User(
val id: String = "",
val firstName: String = "",
val lastName: String = "",
val email: String = "",
val image: String = "",
val mobile: Long = 0,
val gender: String = "",
val profileCompleted: Int = 0): Parcelable
In an activity I called UserProfileActivity I store the mobile and gender into a hashmap, then call the Firebase function to update the Firestore Database. Here is a method of the activity. When the button "submit" is clicked, this code runs:
btn_submit.setOnClickListener {
if(validateUserProfileDetails()){ //checks if entered credentials are valid
val userHashMap = HashMap() //creates the hashmap
val mobileNumber = et_mobile_number.text.toString().trim { it <= ' ' }
val gender = if (rb_male.isChecked) { //these are radio buttons, only 1 clicked
Constants.MALE
} else {
Constants.FEMALE
}
userHashMap[Constants.MOBILE] = mobileNumber.toLong() //storing info in hashmap
userHashMap[Constants.GENDER] = gender
showProgressDialog(resources.getString(R.string.please_wait)) //starting a progress dialog
FirestoreClass().updateUserProfileData( //method in FirestoreClass
this, userHashMap
)
}
}
Now the called method that communicates with the database:
fun updateUserProfileData(activity: Activity, userHashMap: HashMap) {
mFireStore.collection(Constants.USERS) // collection named "users"
.document(getCurrentUserID()) //getCurrentUserID() just gets the current user id
.update(userHashMap) // hashmap used to update the user
.addOnSuccessListener {
when (activity) {
is UserProfileActivity -> {
activity.userProfileUpdateSuccess() //this just hides the progress dialog and finishes the activity in the UserProfileActivity
}
}
}
.addOnFailureListener { e ->
when (activity) {
is UserProfileActivity -> {
activity.hideProgressDialog()
}
}
}
}
But I am getting this error:
2021-12-27 02:35:38.727 14960-14960/com.example.myshopapp E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.myshopapp, PID: 14960
java.lang.NullPointerException: Parameter specified as non-null is null: method kotlin.jvm.internal.Intrinsics.checkNotNullParameter, parameter it
at com.example.myshopapp.firestore.FirestoreClass.updateUserProfileData$lambda-2(Unknown Source:7)
at com.example.myshopapp.firestore.FirestoreClass.$r8$lambda$vs4EuaGwStcL-i3lXRUecduDHWM(Unknown Source:0)
at com.example.myshopapp.firestore.FirestoreClass$$ExternalSyntheticLambda4.onSuccess(Unknown Source:4)
at com.google.android.gms.tasks.zzm.run(com.google.android.gms:play-services-tasks@@18.0.0:1)
at android.os.Handler.handleCallback(Handler.java:938)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:223)
at android.app.ActivityThread.main(ActivityThread.java:7656)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)
I have absolutely no clue where the null pointer exception is occuring... And funnily enough (this is important), the database DOES get updated properly so why is it crashing?? Any help would be much appreciated. :)
ANSWER
Answered 2021-Dec-27 at 16:59This specific error has been showing up a lot lately, and seems to be due to an inconsistent nullability annotation in Firebase listeners.
Apparently Google is aware of the issue and may have recently fixed it
When adding an onSuccessListener for an update call in Kotlin it infers a non-null type for it (Void not Void?). This means if Firestore returns a null result (which would not be uncommon for a Void argument from java), it will raise the error you showed when it is cast to a non-null parameter. The solution is to update to the latest version that fixes this, or if you need an immediate workaround to specifically set the type to nullable, so to change
.addOnSuccessListener {
println("Updated doc")
}
to
.addOnSuccessListener { _: Void? ->
println("Updated doc")
}
QUESTION
I have a RecyclerView that shows a list of CardViews. I recently switched the project from using RecyclerView Adapter to using an AsyncListDiffer Adapter to take advantage of adapter updates on a background thread. I have converted over all previous CRUD and filter methods for the list but cannot get the sort method working.
I have different types or categories of CardViews and I would like to sort by the types/categories. I clone the existing list mCards so the "behind the scenes" DiffUtil will see it as a different list, as compared to the existing list that I wanted to sort. And then I use AsynListDiffer's submitList().
The list is not sorting. What am I missing here?
MainActivity:
private static List mCards = null;
...
mCardViewModel = new ViewModelProvider(this).get(CardViewModel.class);
mCardViewModel.getAllCards().observe(this,(cards -> {
mCards = cards;
cardsAdapter.submitList(mCards);
}));
mRecyclerView.setAdapter(cardsAdapter);
A click on a "Sort" TextView runs the following code:
ArrayList sortItems = new ArrayList<>();
for (Card card : mCards) {
sortItems.add(card.clone());
}
Collections.sort(sortItems, new Comparator() {
@Override
public int compare(Card cardFirst, Card cardSecond) {
return cardFirst.getType().compareTo(cardSecond.getType());
}
});
cardsAdapter.submitList(sortItems);
// mRecyclerView.setAdapter(cardsAdapter); // Adding this did not help
AsyncListDifferAdapter:
public AsyncListDifferAdapter(Context context) {
this.mListItems = new AsyncListDiffer<>(this, DIFF_CALLBACK);
this.mContext = context;
this.mInflater = LayoutInflater.from(mContext);
}
public void submitList(List list) {
if (list != null) {
mListItems.submitList(list);
}
}
public static final DiffUtil.ItemCallback DIFF_CALLBACK
= new DiffUtil.ItemCallback() {
@Override
public boolean areItemsTheSame(@NonNull Card oldItem, @NonNull Card newItem) {
// User properties may have changed if reloaded from the DB, but ID is fixed
return oldItem.getId() == newItem.getId();
}
@Override
public boolean areContentsTheSame(@NonNull Card oldItem, @NonNull Card newItem) {
return oldItem.equals(newItem);
}
@Nullable
@Override
public Object getChangePayload(@NonNull Card oldItem, @NonNull Card newItem) {
return super.getChangePayload(oldItem, newItem);
}
};
Model:
@Entity(tableName = "cards")
public class Card implements Parcelable, Cloneable {
// Parcelable code not shown for brevity
@PrimaryKey(autoGenerate = true)
@ColumnInfo(name = "cardId")
public int id;
@ColumnInfo(name = "cardType")
private String type;
@Ignore
public Card(int id, String type) {
this.id = id;
this.type = type;
}
public int getId() {
return this.id;
}
public String getType() {
return this.type;
}
@Override
public boolean equals(Object obj) {
if (obj == this)
return true;
else if (obj instanceof Card) {
Card card = (Card) obj;
return id == card.getId() &&
type.equals(card.getType());
} else {
return false;
}
}
@NonNull
@Override
public Card clone() {
Card clone;
try {
clone = (Card) super.clone();
} catch (CloneNotSupportedException e) {
throw new RuntimeException(e);
}
return clone;
}
ANSWER
Answered 2021-Dec-22 at 05:40I think issue is in below method
public void submitList(List list) {
if (list != null) {
mListItems.submitList(list);
}
}
because here first you need to clear old arraylist "mListItems" using
mListItems.clear();
//then add new data
if (list != null) {
mListItems.addAll(list);
}
//now notify adapter
notifyDataSetChanged();
Or Also you can direct notify adapter after sorting. First set adapter and pass your main list in adapter's constructor
Collections.sort(sortItems, new Comparator() {
@Override
public int compare(Card cardFirst, Card cardSecond) {
return cardFirst.getType().compareTo(cardSecond.getType());
}
});
//now direct notify adpter
your_adapter_object.notifyDataSetChanged();
QUESTION
I upgraded my apps targetSdkVersion and compileSdkVersion to SDK 31, and started receiving the following crash in app in a service that updates widget in background.
java.lang.RuntimeException:
at android.app.ActivityThread.handleReceiver (ActivityThread.java:4321)
at android.app.ActivityThread.access$1600 (ActivityThread.java:247)
at android.app.ActivityThread$H.handleMessage (ActivityThread.java:2068)
at android.os.Handler.dispatchMessage (Handler.java:106)
at android.os.Looper.loopOnce (Looper.java:201)
at android.os.Looper.loop (Looper.java:288)
at android.app.ActivityThread.main (ActivityThread.java:7842)
at java.lang.reflect.Method.invoke (Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:548)
at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1003)
Caused by: android.app.ForegroundServiceStartNotAllowedException:
at android.app.ForegroundServiceStartNotAllowedException$1.createFromParcel (ForegroundServiceStartNotAllowedException.java:54)
at android.app.ForegroundServiceStartNotAllowedException$1.createFromParcel (ForegroundServiceStartNotAllowedException.java:50)
at android.os.Parcel.readParcelable (Parcel.java:3333)
at android.os.Parcel.createExceptionOrNull (Parcel.java:2420)
at android.os.Parcel.createException (Parcel.java:2409)
at android.os.Parcel.readException (Parcel.java:2392)
at android.os.Parcel.readException (Parcel.java:2334)
at android.app.IActivityManager$Stub$Proxy.startService (IActivityManager.java:5971)
at android.app.ContextImpl.startServiceCommon (ContextImpl.java:1847)
at android.app.ContextImpl.startForegroundService (ContextImpl.java:1823)
at android.content.ContextWrapper.startForegroundService (ContextWrapper.java:779)
at android.content.ContextWrapper.startForegroundService (ContextWrapper.java:779)
at com.mypackage.appname.ui.widget.widget_package.WidgetClassName.onUpdate (WidgetClassName.java:48)
at android.appwidget.AppWidgetProvider.onReceive (AppWidgetProvider.java:66)
at com.mypackage.appname.ui.widget.widget_package.WidgetClassName.onReceive (WidgetClassName.java)
at android.app.ActivityThread.handleReceiver (ActivityThread.java:4312)
at android.app.ActivityThread.access$1600 (ActivityThread.java:247)
at android.app.ActivityThread$H.handleMessage (ActivityThread.java:2068)
at android.os.Handler.dispatchMessage (Handler.java:106)
at android.os.Looper.loopOnce (Looper.java:201)
at android.os.Looper.loop (Looper.java:288)
at android.app.ActivityThread.main (ActivityThread.java:7842)
at java.lang.reflect.Method.invoke (Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:548)
at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1003)
Caused by: android.os.RemoteException:
at com.android.server.am.ActiveServices.startServiceLocked (ActiveServices.java:691)
at com.android.server.am.ActiveServices.startServiceLocked (ActiveServices.java:616)
at com.android.server.am.ActivityManagerService.startService (ActivityManagerService.java:11839)
at android.app.IActivityManager$Stub.onTransact (IActivityManager.java:2519)
at com.android.server.am.ActivityManagerService.onTransact (ActivityManagerService.java:2498)
Also, if you're using something like Firebase Crashlytics, your stacktrace must be something like this ->
Caused by android.app.ForegroundServiceStartNotAllowedException: startForegroundService() not allowed due to mAllowStartForeground false: service com.mypackage.appname/.ui.widget.widget_package.MyForegroundServiceName
at android.app.ForegroundServiceStartNotAllowedException$1.createFromParcel(ForegroundServiceStartNotAllowedException.java:54)
at android.app.ForegroundServiceStartNotAllowedException$1.createFromParcel(ForegroundServiceStartNotAllowedException.java:50)
at android.os.Parcel.readParcelable(Parcel.java:3333)
at android.os.Parcel.createExceptionOrNull(Parcel.java:2420)
at android.os.Parcel.createException(Parcel.java:2409)
at android.os.Parcel.readException(Parcel.java:2392)
at android.os.Parcel.readException(Parcel.java:2334)
at android.app.IActivityManager$Stub$Proxy.startService(IActivityManager.java:5971)
at android.app.ContextImpl.startServiceCommon(ContextImpl.java:1847)
at android.app.ContextImpl.startForegroundService(ContextImpl.java:1823)
at android.content.ContextWrapper.startForegroundService(ContextWrapper.java:779)
at android.content.ContextWrapper.startForegroundService(ContextWrapper.java:779)
at com.mypackage.appname.ui.widget.widget_package.WidgetClassName.onUpdate(WidgetClassName.java:48)
at android.appwidget.AppWidgetProvider.onReceive(AppWidgetProvider.java:66)
at com.mypackage.appname.ui.widget.widget_package.WidgetClassName.onReceive(WidgetClassName.java)
at android.app.ActivityThread.handleReceiver(ActivityThread.java:4312)
at android.app.ActivityThread.access$1600(ActivityThread.java:247)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2068)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loopOnce(Looper.java:201)
at android.os.Looper.loop(Looper.java:288)
at android.app.ActivityThread.main(ActivityThread.java:7842)
at java.lang.reflect.Method.invoke(Method.java)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1003)
I'm adding the way to reproduce this issue, and fixes to this problem, because I did not find any documentation about this on StackOverflow when I searched for it.
ANSWER
Answered 2021-Oct-17 at 13:49Step 1. Update your targetSdkVersion and compileSdkVersion to SDK 31.
Step 2. Try to run any Foreground service when your app is in background. In my case, it was the widget's onUpdate method being called after updatePeriodMillis time, which will start a Foreground service, which updates the data by fetching appropriate information from internet.
Remember: The background execution limits added in Android 8.0 have nothing to do with this problem. This limitation/exception was added in Android 12/SDK 31 - Source.
What is this exception, and why was it added?Apps that target Android 12 (API level 31) or higher can't start foreground services while running in the background, except for a few special cases. If an app tries to start a foreground service while the app is running in the background, and the foreground service doesn't satisfy one of the exceptional cases, the system throws a ForegroundServiceStartNotAllowedException.
These special cases are:
Your app transitions from a user-visible state, such as an activity.
Your app can start an activity from the background, except for the case where the app has an activity in the back stack of an existing task.
Your app receives a high-priority message using Firebase Cloud Messaging.
The user performs an action on a UI element related to your app. For example, they might interact with a bubble, notification, widget, or activity.
Your app invokes an exact alarm to complete an action that the user requests.
Your app is the device's current input method.
Your app receives an event that's related to geofencing or activity recognition transition.
After the device reboots and receives the ACTION_BOOT_COMPLETED, ACTION_LOCKED_BOOT_COMPLETED, or ACTION_MY_PACKAGE_REPLACED intent action in a broadcast receiver.
Your app receives the ACTION_TIMEZONE_CHANGED, ACTION_TIME_CHANGED, or ACTION_LOCALE_CHANGED intent action in a broadcast receiver.
Your app receives a Bluetooth broadcast that requires the BLUETOOTH_CONNECT or BLUETOOTH_SCAN permissions.
Apps with certain system roles or permission, such as device owners and profile owners.
Your app uses the Companion Device Manager and declares the REQUEST_COMPANION_START_FOREGROUND_SERVICES_FROM_BACKGROUND permission or the REQUEST_COMPANION_RUN_IN_BACKGROUND permission. Whenever possible, use REQUEST_COMPANION_START_FOREGROUND_SERVICES_FROM_BACKGROUND.
The user turns off battery optimizations for your app. You can help users find this option by sending them to your app's App info page in system settings. To do so, invoke an intent that contains the ACTION_IGNORE_BATTERY_OPTIMIZATION_SETTINGS intent action.
This will work for a while in Play Store until Google makes it mandatory to upgrade to API level 31.
Currently, starting November 2021 all apps must target API Level 30 and above. So if you're using API Level 31 for your app, downgrading your compileSdkVersion & targetSdkVersion to API Level 30 should fix the issue (atleast for a while).
If you were using Foreground service to do work that is time sensitive, start Foreground services within an exact alarm. Check out more about this from documentation here -> Set an exact alarm.
For time-insensitive/expedited workThis is the solution that I ended up using for my app. Use WorkManager to schedule and start the background work. Check out more about this from documentation here -> Schedule expedited work.
You can know more about WorkManager here -> WorkManager
Github Repo for WorkManager samples -> WorkManager Samples
I added this answer specifically because searching for this exception does not bring up any resources to know why the service behaves differently on Android 12. All this is present in Google's documentation, and always remember to check the behaviour changes from the doc.
Everything related to this change can be found here -> Android 12 Behavior Changes, specifically within the Foreground Service launch restrictions.
QUESTION
I am using the sf package in R along with the arcpullr package to pull in data from an ArcGIS REST service and work with it as an sf object. I have run into an issue with a MULTIPOLYGON where sf is only buffering a part of the MULTIPOLYGON (i.e., it buffers one polygon but only tiny slivers of the other). I have not been able to replicate the problem when buffering the example found here.
Here is an MRE (sorry, you'll have to install arcpullr if you don't have it).
# install.packages("arcpullr")
library(arcpullr)
library(sf) # redundant since loaded with arcpullr, but here for brevity
library(ggplot2)
tax_parcel_url <- paste0(
"https://mapservices.legis.wisconsin.gov/arcgis/rest/services/",
"WLIP/Parcels/FeatureServer/0"
)
parcel <-
get_spatial_layer(tax_parcel_url, where = "PARCELID = 'HA-11'") %>%
st_transform(crs = 3071)
parcel_buffer <- st_buffer(parcel, dist = 10)
# map of parcel
ggplot(data = parcel) + geom_sf() # this is correct
# map of parcel and buffer - buffer "misses" part of multipolygon
ggplot(data = parcel_buffer) +
geom_sf(color = "blue") +
geom_sf(data = parcel, color = "red", alpha = 0.3) +
theme_bw()
ANSWER
Answered 2021-Dec-15 at 08:27You can pipe in st_make_valid to parcel, which will correct the geometry with the sf object (i.e., make the geometry valid). This will allow for the buffer to plot correctly on all parts of the multipolygon.
library(arcpullr)
library(sf)
library(ggplot2)
parcel <-
arcpullr::get_spatial_layer(tax_parcel_url, where = "PARCELID = 'HA-11'") %>%
sf::st_transform(crs = 3071) %>%
sf::st_make_valid()
parcel_buffer <- sf::st_buffer(parcel, dist = 10)
ggplot(data = parcel_buffer) +
geom_sf(color = "blue") +
geom_sf(data = parcel,
color = "red",
alpha = 0.3) +
theme_bw()
library(mapview)
mapview::mapview(parcel_buffer) + mapview::mapview(parcel)
QUESTION
I think this topic already existed. But, since we have a new version of room database, it will be helpful to me to understand better. So, I am implementing a room database with the version 2.3.0 but I am getting lot of errors:
Type of the parameter must be a class annotated with @Entity or a collection/array of it. kotlin.coroutines.Continuation continuation);Not sure how to handle insert method's return type. public abstract java.lang.Object insertStudent(@org.jetbrains.annotations.NotNull()Abstract database methods must return a @Dao annotated class or interface. public abstract void setConnectDatabaseDao(@org.jetbrains.annotations.NotNull()
Like said here, I added ktx extension to support suspendable meethods in Dao. But it's still giving me these errors. Here are my code : app build gradle
plugins {
id 'com.android.application'
id 'kotlin-android-extensions'
id 'kotlin-android'
//id 'kotlin-parcelize'
}
apply plugin: 'kotlin-kapt'
...
//room data base
implementation "androidx.room:room-runtime:$room_version"
annotationProcessor "androidx.room:room-compiler:$room_version"
implementation "androidx.lifecycle:lifecycle-extensions:2.2.0"
kapt "androidx.lifecycle:lifecycle-compiler:2.4.0"
kapt "androidx.room:room-compiler:$room_version"
implementation "androidx.room:room-ktx:$room_version"
// optional - RxJava2 support for Room
implementation "androidx.room:room-rxjava2:$room_version"
// optional - Guava support for Room, including Optional and ListenableFuture
implementation "androidx.room:room-guava:$room_version"
// optional - Test helpers
testImplementation "androidx.room:room-testing:$room_version"
// optional - Paging 3 Integration
implementation "androidx.room:room-paging:2.4.0-rc01"
Database
@Database(entities = [Skill::class, Student::class], version = 1, exportSchema = false)
abstract class ConnectDatabase():RoomDatabase() {
abstract var connectDatabaseDao:ConnectDatabaseDao
companion object{
@Volatile
var INSTANCE:ConnectDatabase? = null
fun getInstance(context:Context): ConnectDatabase {
synchronized(this) {
var instance = INSTANCE
if (instance == null) {
instance = Room.databaseBuilder(
context,
ConnectDatabase::class.java,
"connect_database"
)
.fallbackToDestructiveMigration()
.build()
INSTANCE = instance
}
return instance
}
}
}
}
Dao
@Dao
interface ConnectDatabaseDao {
@Insert(onConflict = OnConflictStrategy.REPLACE)
suspend fun insertStudent(student: Student)
@Insert(onConflict = OnConflictStrategy.REPLACE)
suspend fun insertSkill (skill: Skill)
@Delete
suspend fun deleteStudent(student: Student)
@Delete
suspend fun deleteSkill(skill: Skill)
@Query("SELECT * FROM student WHERE id = :id")
suspend fun getStudent(id:Long):Student?
@Query("SELECT * FROM skill WHERE id = :id")
suspend fun getSkill(id:Long):Skill?
@Query("SELECT * FROM student")
fun getAllStudent():LiveData?>
@Query("SELECT * FROM skill")
fun getAllSkill():LiveData?>
}
Data class
@Parcelize
@Entity(tableName = "student",
foreignKeys = arrayOf(
ForeignKey(entity = Skill::class,
parentColumns = arrayOf("id"),
childColumns = arrayOf("id_skill"),
onDelete = ForeignKey.CASCADE
)
)
)
data class Student (
@PrimaryKey(autoGenerate = true)
@ColumnInfo(name = "id")
val id: Long,
@ColumnInfo(name = "name")
val name: String,
@ColumnInfo(name= "email")
val email: String,
@ColumnInfo(name = "id_skill")
val idSkill: Long
):Parcelable
@Parcelize
@Entity(tableName = "skill")
data class Skill (
@PrimaryKey(autoGenerate = true)
@ColumnInfo(name = "id")
val id: Long,
@ColumnInfo(name = "item")
val item:String
): Parcelable
Do someone knows what create the problem please ?
ANSWER
Answered 2021-Dec-14 at 04:32One issue is as per the title so :-
abstract var connectDatabaseDao:ConnectDatabaseDao
should instead be
abstract fun getConnectDatabaseDao(): ConnectDatabaseDao
The other issues can be overcome by using SDK 30 and removing the suspend from suspend fun .... and having just fun .... when using 2.3.0.
e.g.
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