一旦我点击保存按钮，自动放在imageview上

Question

我有一个保存到SD卡中的功能，我想一旦点击按钮保存就自动将它放到imageview上。请帮助我，谢谢..

这里是我的代码：我希望把它放在tapimageview的ImageView上。

protected void onCreate(Bundle savedInstanceState) { 
     // TODO Auto-generated method stub 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.createpage1); 
     String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss", 
       Locale.getDefault()).format(new Date()); 
     mTempDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES) + "/" + "PixiePhotos" + "/"; 
     //mCurrent = "PXD_" + timeStamp + ".jpg"; 
     prepareDirectory(); 

     save = (Button)findViewById(R.id.save); 
     chooseimage = (Button)findViewById(R.id.chooseImage); 
     compositeImageView = (ImageView)findViewById(R.id.compositeImageView); 
     tapimageview = (ImageView) findViewById(R.id.tapimageview); 
      // imageView5 = (ImageView)findViewById(R.id.imageView5); 
      imageView4 = (ImageView) findViewById(R.id.imageView4); 
      imageView4.setOnTouchListener(this); 
      tapimageview.setImageURI(Uri.parse("android.resource://" 
        + getPackageName() +"/"+R.raw.cork));  


      compositeImageView.setOnTouchListener(this); 
      chooseimage.setOnClickListener(this); 
      imageView4.setImageBitmap(drawingBitmap); 

      //tapimageview.setDrawingCacheEnabled(true); 
      //bgimage = tapimageview.getDrawingCache(); 


     // tapimageview.draw(canvas); 
      //canvas.drawBitmap(bmp, 90, 0, paint); 






      save.setOnClickListener(new View.OnClickListener() { 
       @SuppressWarnings("deprecation") 
       public void onClick(View v) { 
        Log.v(TAG, "Save Tab Clicked"); 
        viewBitmap = Bitmap.createBitmap(600, 600, Bitmap.Config.ARGB_8888);//i is imageview whch u want to convert in bitmap 
        canvas = new Canvas(viewBitmap); 
        tapimageview.draw(canvas); 
        canvas.drawBitmap(bmp, 0, 0, paint); 
        canvas.drawBitmap(drawingBitmap, matrix, paint); 
        canvas.drawBitmap(bmpstickers, matrix, paint); 
        try { 
        mBitmapDrawable = new BitmapDrawable(viewBitmap); 

        mCurrent = "PXD_" + new SimpleDateFormat("yyyyMMdd_HHmmss", 
          Locale.getDefault()).format(new Date()) + ".jpg"; 

        mNewSaving = ((BitmapDrawable) mBitmapDrawable).getBitmap(); 
        String FtoSave = mTempDir + mCurrent; 
        File mFile = new File(FtoSave); 
        mFileOutputStream = new FileOutputStream(mFile); 
        mNewSaving.compress(CompressFormat.JPEG, 100, mFileOutputStream); 
        mFileOutputStream.flush(); 
        mFileOutputStream.close(); 
        } catch (FileNotFoundException e) { 
        Log.v(TAG, "FileNotFoundExceptionError " + e.toString()); 
        } catch (IOException e) { 
        Log.v(TAG, "IOExceptionError " + e.toString()); 
        } 

       } 
       }); 
     } 

Answer 1

要回顾一下：

1. 你有一个形象。
2. 将图像保存到SDCard。
3. 您想要在活动中的预定义tapimageview ImageView中显示图像。

我觉得只要在文件中的位置存在你指定你应该能够引用它，如下所示：

mFile = new File(FtoSave); 
if(mFile.exists()){ 
    Bitmap mBitmap = BitmapFactory.decodeFile(mFile.getAbsolutePath()); 
    tapimageview.setImageBitmap(mBitmap); 
}