2011-07-30 69 views
1

我使用下面的代碼保存/載入我的圖片圖片保存在仿真器,但不是在設備

OnCreate(){ 
    super.onCreate(); 
    setContentView(...) 
.... 
    setImage(); 

    } 
protected void onResume(){ 
    super.onResume(); 
    setImage(); 
    } 


protected void onRestoreInstanceState(Bundle savedInstanceState){ 
    super.onRestoreInstanceState(savedInstanceState); 
    setImage(); 

}

protected void onPostResume(){ 
    super.onPostResume(); 
    setImage(); 

}

private void setImage(){ 
    if(loadPicture(getIntent().getStringExtra("position"),bitmap) != null){ 
     Toast.makeText(this, "not null", Toast.LENGTH_SHORT).show(); 
      imageView.setImageBitmap(loadPicture(getIntent().getStringExtra("position"), bitmap)); 
    } 
} 
private void takePicture() { 
    Intent intent = new Intent("android.media.action.IMAGE_CAPTURE"); 
     File photo = new File(Environment.getExternalStorageDirectory(), 
       "Pic.jpg"); 
    intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(photo)); 
    imageUri = Uri.fromFile(photo); 
    startActivityForResult(intent, 0); 

} 

private void savePicture(String filename, Bitmap b, Context ctx){ 
    try { 
      ObjectOutputStream bos; 
      FileOutputStream out;// = new FileOutputStream(filename); 
      out = ctx.openFileOutput(filename, Context.MODE_WORLD_READABLE); 
      bos = new ObjectOutputStream(out); 
      b.compress(Bitmap.CompressFormat.PNG, 100, bos); 
      if(b.compress(Bitmap.CompressFormat.PNG, 100, bos) == true) 
       Toast.makeText(this, "returned true", Toast.LENGTH_LONG).show(); 

      bos.flush(); 
     // bos.close(); 
      out.close(); 
    } catch (Exception e) { 
      e.printStackTrace(); 
    } 
} 
private Bitmap loadPicture(String filename, Bitmap b){ 
    //Drawable myImage = null; 
    try { 
     FileInputStream fis = openFileInput(filename); 
     ObjectInputStream bis = null; 
     try { 
      bis = new ObjectInputStream(fis); 
     } catch (StreamCorruptedException e1) { 
      // TODO Auto-generated catch block 
      e1.printStackTrace(); 
     } catch (IOException e1) { 
      // TODO Auto-generated catch block 
      e1.printStackTrace(); 
     } 
     // myImage = Drawable.createFromStream(ois, filename); 
     b = BitmapFactory.decodeStream(bis); 
     try { 
      //bis.close(); 
      fis.close(); 
     } catch (IOException e) { 
      e.printStackTrace(); 
     } 

    } catch (FileNotFoundException e) { 
     e.printStackTrace(); 
    } 
    //return myImage; 
    return b; 

} 
@Override 
public void onActivityResult(int requestCode, int resultCode, Intent data) { 
    super.onActivityResult(requestCode, resultCode, data); 
    switch (requestCode) { 
    case 0: 
     if (resultCode == Activity.RESULT_OK) { 

      Uri selectedImage = imageUri; 
      getContentResolver().notifyChange(selectedImage, null); 

      ContentResolver cr = getContentResolver(); 

      try { 
       bitmap = android.provider.MediaStore.Images.Media 
         .getBitmap(cr, selectedImage); 

       imageView.setImageBitmap(Bitmap.createScaledBitmap(bitmap, bitmap.getHeight()/2, bitmap.getWidth()/2, false)); 
       //previos imageView.setImageBitmap(bitmap) 
       savePicture(getIntent().getStringExtra("position"), bitmap, 
         getApplicationContext()); 

       Toast.makeText(this, selectedImage.toString(), 
         Toast.LENGTH_LONG).show(); 
      } catch (Exception e) { 
       Toast.makeText(this, "Failed to load", Toast.LENGTH_SHORT) 
         .show(); 



      } 

這完全適用將圖像保存在模擬器(即樣本圖像)中,但它在真實手機中不起作用。我把圖像,然後按手機上的「OK」圖標後,有大約20秒空白屏幕。然後它崩潰。

+0

你可以粘貼logcat的異常堆棧? –

+0

如何獲取logcat的堆棧,因爲它工作正常,在模擬器上...在設備上,我懷疑這是一個超時,因爲我覺得像後的應用程序崩潰延長了一段時間......可能會導致這種情況?我認爲這與我的方式有關保存文件 – Kgrover

+2

您可以使用USB電纜將IDE連接到設備,並在設備上啓用調試。請參閱http://developer.android.com/guide/developing/device.html](http://developer.android.com/guide/developing/device.html) –

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