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Android | Android related examples

 by   hmkcode Java Version: Current License: No License

 by   hmkcode Java Version: Current License: No License

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kandi X-RAY | Android Summary

Android is a Java library. Android has medium support. However Android has 4 bugs, it has 2 vulnerabilities and it build file is not available. You can download it from GitHub.
This repository contains complete code for Android blog posts on [hmkcode.com](http://hmkcode.com).
Support
Support
Quality
Quality
Security
Security
License
License
Reuse
Reuse

kandi-support Support

  • Android has a medium active ecosystem.
  • It has 3243 star(s) with 3409 fork(s). There are 513 watchers for this library.
  • It had no major release in the last 12 months.
  • There are 28 open issues and 1 have been closed. On average issues are closed in 531 days. There are 34 open pull requests and 0 closed requests.
  • It has a neutral sentiment in the developer community.
  • The latest version of Android is current.
Android Support
Best in #Java
Average in #Java
Android Support
Best in #Java
Average in #Java

quality kandi Quality

  • Android has 4 bugs (0 blocker, 0 critical, 2 major, 2 minor) and 134 code smells.
Android Quality
Best in #Java
Average in #Java
Android Quality
Best in #Java
Average in #Java

securitySecurity

  • Android has 2 vulnerability issues reported (0 critical, 1 high, 1 medium, 0 low).
  • Android code analysis shows 0 unresolved vulnerabilities.
  • There are 3 security hotspots that need review.
Android Security
Best in #Java
Average in #Java
Android Security
Best in #Java
Average in #Java

license License

  • Android does not have a standard license declared.
  • Check the repository for any license declaration and review the terms closely.
  • Without a license, all rights are reserved, and you cannot use the library in your applications.
Android License
Best in #Java
Average in #Java
Android License
Best in #Java
Average in #Java

buildReuse

  • Android releases are not available. You will need to build from source code and install.
  • Android has no build file. You will be need to create the build yourself to build the component from source.
  • Android saves you 3697 person hours of effort in developing the same functionality from scratch.
  • It has 7895 lines of code, 244 functions and 310 files.
  • It has low code complexity. Code complexity directly impacts maintainability of the code.
Android Reuse
Best in #Java
Average in #Java
Android Reuse
Best in #Java
Average in #Java
Top functions reviewed by kandi - BETA

kandi has reviewed Android and discovered the below as its top functions. This is intended to give you an instant insight into Android implemented functionality, and help decide if they suit your requirements.

  • Send POST request
  • Measure the width and height
  • Binds information from the view
  • Returns a specific book by id
  • Called when a location is connected .
  • This method performs a http request and returns the result .
  • Get real path from URI
  • Get a row
  • Handle a wakeful intent .
  • Draw this circle .

Android Key Features

Android related examples

Disable overglow effect in ViewPager2

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//disable glow effect when over-scroll
if (viewPager2.getChildAt(0) instanceof RecyclerView) {
    viewPager2.getChildAt(0).setOverScrollMode(View.OVER_SCROLL_NEVER);
}

collapsingtoolbarlayout recyclerview working separately

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<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/itineraryListFragment"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="?android:windowBackground">
    
    
    <androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        xmlns:tools="http://schemas.android.com/tools"
        android:layout_width="match_parent"
        android:layout_height="match_parent">
        
        
        <com.google.android.material.appbar.AppBarLayout
            android:id="@+id/app_bar"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:fitsSystemWindows="true">
            
            
            <com.google.android.material.appbar.CollapsingToolbarLayout
                android:id="@+id/toolbar_layout"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                app:contentScrim="?attr/colorPrimary"
                app:layout_scrollFlags="scroll|enterAlways">
                
                
                <Button
                    android:id="@+id/button_arrow"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginStart="@dimen/activity_start_margin"
                    android:layout_marginTop="@dimen/_20sdp"
                    android:layout_marginEnd="@dimen/activity_end_margin"
                    android:background="@null"
                    android:clickable="true"
                    android:drawableStart="@drawable/ic_arrow_booking_details"
                    android:gravity="start|center_vertical" />
                
                
                <ImageView
                    android:id="@+id/iv_background_image"
                    android:layout_width="match_parent"
                    android:layout_height="@dimen/_123sdp"
                    android:contentDescription="@string/name_app"
                    android:scaleType="centerCrop"
                    app:srcCompat="@drawable/booking_details_background" />
                
                
                <ImageView
                    android:id="@+id/iv_background_rectangle"
                    android:layout_width="match_parent"
                    android:layout_height="@dimen/_123sdp"
                    android:scaleType="centerCrop"
                    app:layout_collapseMode="parallax"
                    app:srcCompat="@drawable/rectangle_booking_details" />
                
                
                <TextView
                    android:id="@+id/tv_background_title"
                    style="@style/font_title_bookingdetails"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginStart="@dimen/activity_start_margin"
                    android:layout_marginTop="95dp"
                    android:layout_marginEnd="@dimen/activity_end_margin"
                    android:gravity="start|center_vertical"
                    android:text="@string/text_trek_everest_name"
                    android:textColor="@color/colorPrimary" />
                
                
                <androidx.constraintlayout.widget.Guideline
                    android:id="@+id/guideline9"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:orientation="vertical"
                    app:layout_constraintGuide_begin="26dp" />
                
                
                <androidx.appcompat.widget.Toolbar
                    android:layout_width="?attr/actionBarSize"
                    android:layout_height="wrap_content"
                    app:layout_collapseMode="pin"
                    app:layout_scrollFlags="scroll|enterAlways"
                    app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />
            
            
            </com.google.android.material.appbar.CollapsingToolbarLayout>
        
        
        </com.google.android.material.appbar.AppBarLayout>
        
        
        <androidx.core.widget.NestedScrollView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            
            app:layout_behavior="@string/appbar_scrolling_view_behavior">
            
            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="vertical">
                
                <TextView
                    android:id="@+id/tv_title_itinerary_list"
                    style="@style/font_title_day1"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginStart="@dimen/activity_start_margin"
                    android:layout_marginTop="@dimen/_15sdp"
                    android:layout_marginBottom="@dimen/activity_end_margin"
                    
                    android:gravity="center_vertical"
                    android:text="@string/dashboard_itinerary"
                    app:layout_constraintBottom_toBottomOf="parent"
                    app:layout_constraintEnd_toEndOf="parent"
                    app:layout_constraintHorizontal_bias="0.0"
                    app:layout_constraintStart_toStartOf="parent"
                    app:layout_constraintTop_toTopOf="parent"
                    app:layout_constraintVertical_bias="0.235" />
                
                <include layout="@layout/booking_itinerary_recyclerview" />
            </LinearLayout>
        </androidx.core.widget.NestedScrollView>
    
    </androidx.coordinatorlayout.widget.CoordinatorLayout>

</FrameLayout>

Import compose sample projects to android studio version 4.2

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Android Studio 4.2
Build #AI-202.7660.26.42.7322048, built on April 29, 2021
Android Studio Arctic Fox | 2020.3.1 Beta 03
-----------------------
Android Studio 4.2
Build #AI-202.7660.26.42.7322048, built on April 29, 2021
Android Studio Arctic Fox | 2020.3.1 Beta 03

error: cannot find symbol | class ApplicationComponent

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@dagger.hilt.InstallIn(value = {ApplicationComponent.class})
                                ^
  symbol: class ApplicationComponenterror: [Hilt]
  @InstallIn, 'value' class is invalid or missing: @dagger.hilt.InstallIn({<error>})
  [Hilt] Processing did not complete. See error above for details.

How can add a Row dynamically in flutter?

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      return Container(
      padding: EdgeInsets.all(16.0),
      width: 100.0.w,
        child: Center(
          child: Wrap(
            spacing: 10.0,
            runSpacing: 10.0,
            direction: Axis.horizontal,
            crossAxisAlignment: WrapCrossAlignment.center,
            children:iconos, //LIST OF ITEMS
          ),
        ),
  );

Android Studio Flutter - WARNING: Another emulator is still running - windows 10

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/F    Specifies that processes be forcefully ended. This parameter is ignored for remote processes; all remote processes are forcefully ended.

/T    Ends the specified process and any child processes started by it.

/IM   Specifies the image name of the process to be terminated.

How to make mobile Safari show a background gif properly

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.loader {
  position: fixed;
  left: 50%;
  top: 50%;
  border-radius: 50%;
  width: 128px;
  height: 128px;
  margin: -76px 0 0 -76px; 
  border: 16px solid #f3f3f3;
  border-top: 16px solid #fff;
  -webkit-animation: spin 5s linear infinite;
  animation: spin 5s linear infinite;

}

/* Safari */
@-webkit-keyframes spin {
  0% { -webkit-transform: rotate(0deg); }
  100% { -webkit-transform: rotate(360deg); }
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>

</style>
</head>
<body>


<div class="loader"><img src="https://www.w3schools.com/html/programming.gif" alt="Computer man" style="width:48px;height:48px;"></div>

</body>
</html>
-----------------------
.loader {
  position: fixed;
  left: 50%;
  top: 50%;
  border-radius: 50%;
  width: 128px;
  height: 128px;
  margin: -76px 0 0 -76px; 
  border: 16px solid #f3f3f3;
  border-top: 16px solid #fff;
  -webkit-animation: spin 5s linear infinite;
  animation: spin 5s linear infinite;

}

/* Safari */
@-webkit-keyframes spin {
  0% { -webkit-transform: rotate(0deg); }
  100% { -webkit-transform: rotate(360deg); }
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>

</style>
</head>
<body>


<div class="loader"><img src="https://www.w3schools.com/html/programming.gif" alt="Computer man" style="width:48px;height:48px;"></div>

</body>
</html>

Dynamically creating button row column wise

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 private void createLayoutDynamically(int n) {

        int count=0;
        LinearLayout layout = (LinearLayout) findViewById(R.id.myDynamicLayout); //Main Vertical Linear Layout
        layout.setOrientation(LinearLayout.VERTICAL); //Setting that LinearLayout as Vertical

        for (int i = 0; i < n; i++)
        {
            LinearLayout row=new LinearLayout(this); //new Horizontal LinearLayout
            row.setOrientation(LinearLayout.HORIZONTAL); //keeping this layout's orientation horizontal
            row.setLayoutParams(new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT)); //setting it's width and Height

            for(int j=0;j<n;j++)
            {
                Button myButton = new Button(this);
                myButton.setLayoutParams(new LayoutParams(50, LayoutParams.WRAP_CONTENT));
                myButton.setText("");
                myButton.setId(count);
                final int id_ = myButton.getId();
                row.addView(myButton);
                count++;
            }
            
            //Once Button Added to Horizontal Row add it back to Vertical Linearlayout
            layout.addView(row);

        }
    }

Extract string values from a string using regex in java

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^([a-zA-Z0-9]+)\s+Confirmed\.on\h+(\d{1,2}/\d{1,2}/\d\d)\h+at\h+(\d{1,2}:\d{1,2})\w*Ksh(\d+(?:\.\d+)?).*?\bfrom\h+(\d+)\h+([^.]+)\.
final String regex = "^([a-zA-Z0-9]+)\\s+Confirmed\\.on\\h+(\\d{1,2}/\\d{1,2}/\\d\\d)\\h+at\\h+(\\d{1,2}:\\d{1,2})\\w*Ksh(\\d+(?:\\.\\d+)?).*?\\bfrom\\h+(\\d+)\\h+([^.]+)\\.";

final String string2 = "PFEDDTYG0D Confirmed.on 14/6/21 at 12:46PMKsh260.00 received from 254725400049 JOHN DOE. New Account balance is Ksh1,666. Transaction cost, Ksh1";
final Pattern pattern = Pattern.compile(regex, Pattern.MULTILINE);
final Matcher matcher = pattern.matcher(string2);

if(matcher.find()) {
    String code = matcher.group(1);
    String amountReceived = matcher.group(4);
    String tel = matcher.group(5);
    String from = matcher.group(6);
    String date = matcher.group(2);
    String time = matcher.group(3);

    String format = "code: %s amount received: %s from: %s date: %s time: %s tel: %s";
    System.out.println(String.format(format, code, amountReceived, from, date, time, tel));
}
code: PFEDDTYG0D amount received: 260.00 from: JOHN DOE date: 14/6/21 time: 12:46 tel: 254725400049
-----------------------
^([a-zA-Z0-9]+)\s+Confirmed\.on\h+(\d{1,2}/\d{1,2}/\d\d)\h+at\h+(\d{1,2}:\d{1,2})\w*Ksh(\d+(?:\.\d+)?).*?\bfrom\h+(\d+)\h+([^.]+)\.
final String regex = "^([a-zA-Z0-9]+)\\s+Confirmed\\.on\\h+(\\d{1,2}/\\d{1,2}/\\d\\d)\\h+at\\h+(\\d{1,2}:\\d{1,2})\\w*Ksh(\\d+(?:\\.\\d+)?).*?\\bfrom\\h+(\\d+)\\h+([^.]+)\\.";

final String string2 = "PFEDDTYG0D Confirmed.on 14/6/21 at 12:46PMKsh260.00 received from 254725400049 JOHN DOE. New Account balance is Ksh1,666. Transaction cost, Ksh1";
final Pattern pattern = Pattern.compile(regex, Pattern.MULTILINE);
final Matcher matcher = pattern.matcher(string2);

if(matcher.find()) {
    String code = matcher.group(1);
    String amountReceived = matcher.group(4);
    String tel = matcher.group(5);
    String from = matcher.group(6);
    String date = matcher.group(2);
    String time = matcher.group(3);

    String format = "code: %s amount received: %s from: %s date: %s time: %s tel: %s";
    System.out.println(String.format(format, code, amountReceived, from, date, time, tel));
}
code: PFEDDTYG0D amount received: 260.00 from: JOHN DOE date: 14/6/21 time: 12:46 tel: 254725400049
-----------------------
^([a-zA-Z0-9]+)\s+Confirmed\.on\h+(\d{1,2}/\d{1,2}/\d\d)\h+at\h+(\d{1,2}:\d{1,2})\w*Ksh(\d+(?:\.\d+)?).*?\bfrom\h+(\d+)\h+([^.]+)\.
final String regex = "^([a-zA-Z0-9]+)\\s+Confirmed\\.on\\h+(\\d{1,2}/\\d{1,2}/\\d\\d)\\h+at\\h+(\\d{1,2}:\\d{1,2})\\w*Ksh(\\d+(?:\\.\\d+)?).*?\\bfrom\\h+(\\d+)\\h+([^.]+)\\.";

final String string2 = "PFEDDTYG0D Confirmed.on 14/6/21 at 12:46PMKsh260.00 received from 254725400049 JOHN DOE. New Account balance is Ksh1,666. Transaction cost, Ksh1";
final Pattern pattern = Pattern.compile(regex, Pattern.MULTILINE);
final Matcher matcher = pattern.matcher(string2);

if(matcher.find()) {
    String code = matcher.group(1);
    String amountReceived = matcher.group(4);
    String tel = matcher.group(5);
    String from = matcher.group(6);
    String date = matcher.group(2);
    String time = matcher.group(3);

    String format = "code: %s amount received: %s from: %s date: %s time: %s tel: %s";
    System.out.println(String.format(format, code, amountReceived, from, date, time, tel));
}
code: PFEDDTYG0D amount received: 260.00 from: JOHN DOE date: 14/6/21 time: 12:46 tel: 254725400049

Dropdown in custom Alertdialog doesn't show any items (Kotlin)

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// inflate your layout    
val dialogView = LayoutInflater.from(this).inflate(R.layout.pizza_alert_dialog, null, false)
     
// and set it as dialog view          
pizzaDialogBuilder.setView(dialogView)
    
// then call findViewById on this ViewGroup to get the Spinner            
val pizzaDropdown = dialogView.findViewById<Spinner>(R.id.pizzaSelection)

Community Discussions

Trending Discussions on Android
  • There was a problem saving the text in EditText to a file
  • Disable overglow effect in ViewPager2
  • Android Studio - can't create an object (recyclerview)
  • kotlin return type of nullable?.let{}
  • collapsingtoolbarlayout recyclerview working separately
  • Import compose sample projects to android studio version 4.2
  • Security concern of using Firebase ID tokens for authentication on my custom backend
  • error: cannot find symbol | class ApplicationComponent
  • How does Kotlin coroutines manage to schedule all coroutines on the main thread without block it?
  • How can add a Row dynamically in flutter?
Trending Discussions on Android

QUESTION

There was a problem saving the text in EditText to a file

Asked 2021-Jun-16 at 01:47

This code receives information from an acquaintance you want to register in editText, and then clicks finButton to save the information you receive as a file called friendlist.txt. However, the Toast message is outputted from the try-catch statement that is currently performed when finButton is pressed. Also, the checkpermission does not work, which is wrapped in a try~catch statement, but does not have output on the logcat.

And manifest.

uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"

uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"

is written.

Please let me know the solution. And this content is written with a translator, so the sentence can be strange.

when you press finButton, the logcat is shown below.

The code corresponding to the 116th line is this.

FileOutputStream outstream = openFileOutput("friendList.txt", Activity.MODE_WORLD_WRITEABLE);

logcat

public class EnteringInformationOfFriendActivity extends AppCompatActivity {
    Button finButton;
    EditText phoneNumberEditText, nameEditText, emailEditText, groupEditText, memoEditText;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_entering_information_of_friend);

        phoneNumberEditText = (EditText) findViewById(R.id.phoneNumberEditText);

        nameEditText = (EditText) findViewById(R.id.nameEditText);
        emailEditText = (EditText) findViewById(R.id.emailEditText);
        groupEditText = (EditText) findViewById(R.id.groupEditText);
        memoEditText = (EditText) findViewById(R.id.memoEditText);

        try{
            checkPermission();
        }
        catch (Exception e){
            StringWriter sw = new StringWriter();
            e.printStackTrace(new PrintWriter(sw));
            String exceptionAsStrting = sw.toString();
            Log.e("CSP", exceptionAsStrting);

            e.printStackTrace();
        }

        finButton = (Button) findViewById(R.id.finButton);
        finButton.setOnClickListener(v -> {
            try{
                String phoneTxt = phoneNumberEditText.getText().toString().trim();
                String nameTxt = nameEditText.getText().toString().trim();
                String emailTxt = emailEditText.getText().toString().trim();
                String groupTxt = groupEditText.getText().toString().trim();
                String memoTxt = memoEditText.getText().toString().trim();

                String friendInfoTxt = phoneTxt + "-" + nameTxt + "-" + emailTxt + "-" + groupTxt + "-" + memoTxt;

                FileOutputStream outstream = openFileOutput("friendList.txt", Activity.MODE_WORLD_WRITEABLE);

                outstream.write(friendInfoTxt.getBytes());

                outstream.close();

                Intent intent = new Intent(v.getContext(), FriendListActivity.class);
                startActivity(intent);
            } catch (Exception e){
                StringWriter sw = new StringWriter();
                e.printStackTrace(new PrintWriter(sw));
                String exceptionAsStrting = sw.toString();
                Log.e("Filesave", exceptionAsStrting);

                e.printStackTrace();
                Toast.makeText(this.getApplicationContext(), "Save failed.", Toast.LENGTH_SHORT).show();
            }
        });
    }
    public void checkPermission(){
        if(checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED){
            ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, 1);
        }
    }
}

ANSWER

Answered 2021-Jun-16 at 01:47

Try with Context.MODE_APPEND or Context.MODE_PRIVATE instead of Activity.MODE_WORLD_WRITEABLE

Source https://stackoverflow.com/questions/67995297

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

In FLAC__bitreader_read_rice_signed_block of bitreader.c, there is a possible out of bounds read due to a heap buffer overflow. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-156076070

Install Android

You can download it from GitHub.
You can use Android 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 Android 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 .

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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