• 截圖程式碼方法1

    private void screenShotAll() {
        View view = getWindow().getDecorView().getRootView();
        view.setDrawingCacheEnabled(true);
        view.buildDrawingCache();
        Bitmap temBitmap = view.getDrawingCache();
        File fileDir = new File(CAMERA_DIR);
        if (!fileDir.exists()) {
            fileDir.mkdirs();
        }
        String path = CAMERA_DIR + "/all_screen.png"
 
;
        try {
            FileOutputStream foStream = new FileOutputStream(path);
            temBitmap.compress(Bitmap.CompressFormat.PNG, 100, foStream);
            foStream.flush();
            foStream.close();
            Toast.makeText(this,"截圖成功,請在相簿目錄下("+path+")檢視",Toast.LENGTH_LONG).show();
        } catch
 
 (Exception e) {
            Log.i("Show", e.toString());
        }
    }

由於我的需求是 遊客登入時自動截圖後臺分配的使用者名稱和密碼到相簿,正好我這裡登入是一個dialog,然後dialog並沒有顯示,於是瞭解到可以單獨擷取dialog

  AlertDialog dialog;
    private void showDialog() {
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setTitle("提示"
 
);
        builder.setMessage("等待1秒自動截圖dialog,請在相簿目錄下("+CAMERA_DIR+")檢視");
        builder.setIcon(R.mipmap.ic_launcher);
        builder.setPositiveButton("確定", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
            }
        });
        dialog = builder.create();
        dialog.show();
//        window = dialog.getWindow();
    }

先儲存dialog,同時更改截圖方法第一行程式碼,通過dialog獲取view

View view = dialog.getWindow().getDecorView();

• 截圖程式碼方法2

  private void screenShotView(View view) {
      Bitmap temBitmap = Bitmap.createBitmap(view.getWidth(), view.getHeight(), Bitmap.Config.ARGB_8888);
      Canvas canvas = new Canvas(temBitmap);
      view.draw(canvas);
      File fileDir = new File(CAMERA_DIR);
      if (!fileDir.exists()) {
          fileDir.mkdirs();
      }
      String path = CAMERA_DIR + "/view_screen.png";
      try {
          FileOutputStream foStream = new FileOutputStream(path);
          temBitmap.compress(Bitmap.CompressFormat.PNG, 100, foStream);
          foStream.flush();
          foStream.close();
          Toast.makeText(this,"截圖成功,請在相簿目錄下("+path+")檢視",Toast.LENGTH_LONG).show();
      } catch (Exception e) {
          Log.i("Show", e.toString());
      }
  }
  

  通過dialog獲取到DecorView,擷取指定view儲存到相簿

  screenShotView(dialog.getWindow().getDecorView());