Как программно сделать снимок экрана открытой активности в Android?

Question

Сделайте снимок экрана, когда я пользуюсь мобильным и мобильным начальным экраном. Также, когда я использую обмен сообщениями, все приложения и что-нибудь в мобильном экране.

В то возьмите изображение Mobile Запуск экрана:

Answer 1

Добавьте следующее разрешение в очевидном <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE/>" <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE/>"

try { 
    // image naming and path to include sd card appending name you choose for file 
    String mPath = Environment.getExternalStorageDirectory().toString() + "/" + "name"+ ".jpg"; 

    // create bitmap screen capture 
    View v1 = getWindow().getDecorView().getRootView(); 
    v1.setDrawingCacheEnabled(true); 
    Bitmap bitmap = Bitmap.createBitmap(v1.getDrawingCache()); 
    v1.setDrawingCacheEnabled(false); 

    File imageFile = new File(mPath); 

    FileOutputStream outputStream = new FileOutputStream(imageFile); 
    int quality = 100; 
    bitmap.compress(Bitmap.CompressFormat.JPEG, quality, outputStream); 
    outputStream.flush(); 
    outputStream.close(); 

    openScreenshot(imageFile); 
} catch (Throwable e) { 
    // Several error may come out with file handling or OOM 
    e.printStackTrace(); 
} 

Answer 2

1-Create layout 

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:id="@+id/relativelayout" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" > 

    <Button 
     android:id="@+id/btn" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_centerHorizontal="true" 
     android:layout_marginTop="20dp" 
     android:text="Create ScreenShot" /> 

    <ImageView 
     android:id="@+id/sowscreenshot" 
     android:layout_width="216dp" 
     android:layout_height="360dp" 
     android:layout_below="@+id/btn" 
     android:layout_centerHorizontal="true" 
     android:layout_marginTop="10dp" /> 

</RelativeLayout> 

2-Create Activity 

import android.graphics.Bitmap; 
import android.graphics.drawable.BitmapDrawable; 
import android.os.Bundle; 
import android.os.Environment; 
import android.support.v7.app.AppCompatActivity; 
import android.view.View; 
import android.widget.Button; 
import android.widget.ImageView; 
import android.widget.Toast; 

import java.io.File; 
import java.io.FileOutputStream; 
import java.io.IOException; 

public class MainActivity extends AppCompatActivity { 

    Button btn_screenshoot; 
    int i = 0; 
    ImageView imgv_showscreenshot; 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 

     imgv_showscreenshot = (ImageView) findViewById(R.id.showscreenshot); 
     btn_screenshoot = (Button) findViewById(R.id.btn); 
     btn_screenshoot.setOnClickListener(new View.OnClickListener() { 

      @Override 
      public void onClick(View v) { 

       View view = findViewById(R.id.relativelayout); 
       view.setDrawingCacheEnabled(true); 
       Bitmap bitmap = view.getDrawingCache(); 
       BitmapDrawable bitmapDrawable = new BitmapDrawable(bitmap); 

// set screenshot bitmapdrawable to imageview 
       imgv_showscreenshot.setBackgroundDrawable(bitmapDrawable); 
       if (Environment.MEDIA_MOUNTED.equals(Environment 
         .getExternalStorageState())) { 
// we check if external storage is available, otherwise 
// display an error message to the user using Toast Message 
        File sdCard = Environment.getExternalStorageDirectory(); 
        File directory = new File(sdCard.getAbsolutePath() 
          + "/ScreenShots"); 
        directory.mkdirs(); 

        String filename = "screenshot" + i + ".jpg"; 
        File yourFile = new File(directory, filename); 

        while (yourFile.exists()) { 
         i++; 
         filename = "screenshot" + i + ".jpg"; 
         yourFile = new File(directory, filename); 
        } 

        if (!yourFile.exists()) { 
         if (directory.canWrite()) { 
          try { 
           FileOutputStream out = new FileOutputStream(
             yourFile, true); 
           bitmap.compress(Bitmap.CompressFormat.PNG, 90, 
             out); 
           out.flush(); 
           out.close(); 
           Toast.makeText(
             MainActivity.this, 
             "File exported to /sdcard/ScreenShots/screenshot" 
               + i + ".jpg", 
             Toast.LENGTH_SHORT).show(); 
           i++; 
          } catch (IOException e) { 
           e.printStackTrace(); 
          } 

         } 
        } 
       } else { 
        Toast.makeText(MainActivity.this, 
          "Sorry SD Card not available in your Device!", 
          Toast.LENGTH_SHORT).show(); 
       } 

      } 
     }); 

    } 

} 

3-Add permission to Manifest file 

    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> 

Answer 3

Использование этого. Я сделал то, что, когда кнопка была нажата, она сохраняет весь макет таким же способом, что и захват снимков экрана.

 linearLayout = (LinearLayout) findViewById(R.id.screenshots); //say for eg: this is the main layout id wich holds everything(images etc) 
    //use a button to call this method.   
    private void saveLayout() { 
     // View v1 = getWindow().getDecorView().getRootView(); 
     View v1 = linearLayout.getRootView(); 
     v1.setDrawingCacheEnabled(true); 
     myBitmap = v1.getDrawingCache(); 
     if (myBitmap != null) { 
      Toast.makeText(MainScreen.this, "Bitmap not null", 
      Toast.LENGTH_SHORT).show(); 
      saveBitmap(myBitmap); 
     } else { 
      Toast.makeText(MainScreen.this, "Bitmap null",Toast.LENGTH_SHORT).show(); 
     } 
    } 

    private void saveBitmap(Bitmap bitmap) { 

    try { 
     File mFolder = new File(getFilesDir() + "/nmc"); //give a name for the folder 
     File imagePath = new File(mFolder + "screenshot.png"); 
     if (!mFolder.exists()) { 
      mFolder.mkdir(); 
     } 
     if (!imagePath.exists()) { 
      imagePath.createNewFile(); 
     } 
     FileOutputStream fos=null; 

     fos = new FileOutputStream(imagePath); 
     // bitmap.compress(CompressFormat.PNG, 100, fos); 
     bitmap.compress(Bitmap.CompressFormat.PNG, 60, fos); 
     ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(); 
     byte[] byteArray = byteArrayOutputStream.toByteArray(); 
     String encodedByte = Base64.encodeToString(byteArray,Base64.DEFAULT); 
     Log.e("encodeByte", encodedByte); 
     fos.flush(); 
     fos.close(); 
     MediaStore.Images.Media.insertImage(getContentResolver(), bitmap,"Screen", "screen"); 

    } catch (FileNotFoundException e) { 
     Log.e("no file", e.getMessage(), e); 
    } catch (IOException e) { 
     Log.e("io", e.getMessage(), e); 
    } 

}