DownloadManager | 多线程下载，断点续传，okhttp -
kandi X-RAY | DownloadManager Summary
kandi X-RAY | DownloadManager Summary
DownloadManager
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Top functions reviewed by kandi - BETA
- Bind download view
- Set download progress listener
- Cancel a download task
- Gets a download task
- Initialize this download manager
- Query all content
- Recursively update the download task state
- Initialize executor
- Runs the download process
- Get file name from url
- Gets the default file path
- Insert content
- Creates the download task
- Gets the data
- On upgrade
- Generate table
- Gets the Dao for the given class
- Release resources
- Get DB helper
- Creates the down view holder
- Returns the total number of items in the list
DownloadManager Key Features
DownloadManager Examples and Code Snippets
Community Discussions
Trending Discussions on DownloadManager
QUESTION
Im trying to get data from an api, and im running into an error on this line
val queue = Volley.newRequestQueue(this@MainActivity)
The error says "Type mismatch: inferred type is Home but Context! was expected"
I have tried changing "this" to "this@MainActivity", However this just made Main Activity go red and when i hover over it, it says unresolved reference
My whole code is below, thanks for any help in advance
ANSWER
Answered 2022-Apr-16 at 15:20package com.example.temperaturesensor
import android.os.Bundle
import android.util.Log
import androidx.fragment.app.Fragment
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import com.android.volley.Request
import com.android.volley.Response
import com.android.volley.toolbox.StringRequest
import com.android.volley.toolbox.Volley
import org.json.JSONArray
import org.json.JSONTokener
class Home : Fragment() {
override fun onCreateView(
inflater: LayoutInflater, container: ViewGroup?,
savedInstanceState: Bundle?
): View? {
// Inflate the layout for this fragment
val view = inflater.inflate(R.layout.fragment_home, container, false)
val queue = Volley.newRequestQueue(view.context)
val url = "https://io.adafruit.com/api/v2/alex9301/feeds/test-data/data" // Your URL
var urlStuff = ""
val stringRequest = StringRequest(Request.Method.GET, url,
{ response ->
// Display the first 500 characters of the response string.
urlStuff = response
val jsonArray = JSONTokener(urlStuff).nextValue() as JSONArray
for (i in 0 until jsonArray.length()) {
// ID
val id = jsonArray.getJSONObject(i).getString("value") // Get data
Log.i("Val: ", id)
}
},
{ Log.i("b", "That didn't work!") })
queue.add(stringRequest)
return view
}
}
QUESTION
I am creating an app and I need to add the possibility to export the data stored in the app.
Is there any best practice to follow?
At the moment I create a file in Context.cacheDir and notify DownloadManager about it.
The file cannot be opened in the end, but I am wondering if there is a best practice to follow for this kind of operations.
ANSWER
Answered 2022-Apr-01 at 17:38Personally, I would use ACTION_CREATE_DOCUMENT / ActivityResultContracts.CreateDocument for single-file exports. This will let the user decide where on the user's device (or in the user's cloud storage) you should export the user's data.
If your export involves multiple files, use ACTION_OPEN_DOCUMENT_TREE / ActivityResultContracts.OpenDocumentTree and create a sub-tree in which to place that content.
QUESTION
targetSdkVersion: 30
In our App we have a feature, where we download files (mostly pdf) to the public download folder and start an intent afterwards to open it. Our code works fine for android apps with api >= 28 and >= 30. Just our app on Android 10 (sdkVersion 29) will try to open the document and instantly closes the activity that tried to display the pdf. The logcat shows following error:
...ANSWER
Answered 2022-Mar-17 at 13:44You should not use FileProvider to obtain an uri for your file.
You can get an uri from DownloadManager and use it to serve your file.
Code would be the same for all Android versions.
Not a single permission needed.
QUESTION
I'm using webview in an Android application. I am trying to download a .pdf file, however when the link is clicked through the application the .pdf file name is changed to "1rcPnhg9_rSes92BiQPotVjXuEAfFnyrf.pdf", and is not saved with the original file name.
How to make webview save the file with the original name? At the moment the webview is saving the file using the ID as the name.
Used link: https://drive.google.com/uc?export=download&id=1rcPnhg9_rSes92BiQPotVjXuEAfFnyrf
WebView:
...ANSWER
Answered 2022-Mar-15 at 15:21An option to use DownloadManager
For this you sould add an onNavigating event to your WebView. If the user target a pdf file you can stop the loading process with: ags.Cancel = true And this point when you can pass the url to a DownloadManager what will download your file.
QUESTION
I'm downloading a file through android DownloadManager with de function below.
...ANSWER
Answered 2022-Mar-10 at 23:34DownloadManager delegates the downloading work to a separate system-supplied app. That app has rights to write to a few locations, even if your app does not.
QUESTION
I am currently using pdfjs to show the annotations from a provided pdf but when trying to render, it shows linkService is undefined and i cannot find a way to solve this issue. Here is the piece of code if it might help:
...ANSWER
Answered 2022-Mar-08 at 16:32If you don't mind, you can try using an older version,i.e. install pdfjs-dist version 2.6.347. For the linkService, add pdfjsLib.LinkTarget.BLANK i.e. your annotation layer render now becomes:
QUESTION
Here is the code i am tring to do the same when i am downloading anything from webView in android.
...ANSWER
Answered 2022-Mar-03 at 18:03DownloadManager cannot download to internal storage, as it has no access to that location.
DownloadManager is very limited in modern versions of Android, due to scoped storage restrictions. I recommend that you use something else, such as OkHttp, to download the content within your app to a file that you control, including onto internal storage.
QUESTION
In this feature, I download the file from the URL and after completing the download I open that file from intent but it shows the file is corrupted and not open
here is my code for downloading the file and opening the file from intent
...ANSWER
Answered 2022-Jan-31 at 14:55I see that in the downloadFile method > inside try, you are creating the Uri of the url by parsing it. But, the url cannot be converted to Uri as it does not exist on the device!
Replace
QUESTION
Fatal Exception: android.database.CursorIndexOutOfBoundsException
Index 0 requested, with a size of 0
ANSWER
Answered 2022-Jan-25 at 14:51Your query matched no rows. You need to check the return value of cursor.moveToFirst() and call cursor.getInt() only if it returned true.
QUESTION
I'm using Jetpack Compose in an Android app. I need to load images and I use:
...ANSWER
Answered 2022-Jan-24 at 00:49If you have a file path, try to transfer the file,please try
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install DownloadManager
You can use DownloadManager like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the DownloadManager component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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