安卓相機（照片未顯示）

Question

我開發一個Android應用程序，我希望我的應用程序能夠拍照並顯示它們。 我的問題是，它使圖片，存儲在SD卡上，但沒有顯示在我的應用程序，ImageView保持空白。 繼承人我的代碼：

public class OfferCreation2 extends ActionBarActivity { 

private Uri imageUri; 
private static int TAKE_PICTURE=1; 


@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_offer_creation2); 

    Button buttonTakePhoto = (Button) findViewById(R.id.buttonTakePhoto); 
    buttonTakePhoto.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View v) { 
      takePhoto(v); 
     } 
    }); 

} 

private void takePhoto(View v){ 
    Intent intent = new Intent("android.media.action.IMAGE_CAPTURE"); 
    File photo = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES), "picture.jpg"); 
    imageUri = Uri.fromFile(photo); 
    intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri); 
    startActivityForResult(intent, TAKE_PICTURE); 
} 

@Override 
protected void onActivityResult(int requestCode, int resultCode, Intent intent) { 
    super.onActivityResult(requestCode, resultCode, intent); 

    if(resultCode == Activity.RESULT_OK){ 
     Uri selectedImage = imageUri; 
     getContentResolver().notifyChange(selectedImage, null); 

     ImageView picture = (ImageView) findViewById(R.id.imageProduct); 
     ContentResolver cr = getContentResolver(); 
     Bitmap bitmap; 

     try{ 
      bitmap = MediaStore.Images.Media.getBitmap(cr, selectedImage); 
      picture.setImageBitmap(bitmap); 
      Toast.makeText(OfferCreation2.this, selectedImage.toString(), Toast.LENGTH_LONG).show(); 
     }catch(Exception e){ 
      Toast.makeText(OfferCreation2.this, "FAIL?", Toast.LENGTH_LONG).show(); 
     } 
    } 
} 

@Override 
public boolean onCreateOptionsMenu(Menu menu) { 
    // Inflate the menu; this adds items to the action bar if it is present. 
    getMenuInflater().inflate(R.menu.menu_offer_creation2, menu); 
    return true; 
} 

@Override 
public boolean onOptionsItemSelected(MenuItem item) { 
    // Handle action bar item clicks here. The action bar will 
    // automatically handle clicks on the Home/Up button, so long 
    // as you specify a parent activity in AndroidManifest.xml. 
    int id = item.getItemId(); 

    //noinspection SimplifiableIfStatement 
    if (id == R.id.action_settings) { 
     return true; 
    } 

    return super.onOptionsItemSelected(item); 
} 

}

Answer 1

這是我用來捕捉圖像，並將其保存到圖片查看它會解決你的問題讓我知道，如果你需要更清晰的代碼。

ImageView ivCapture; 
     @Override 
     protected void onCreate(Bundle savedInstanceState) { 
      super.onCreate(savedInstanceState); 
      setContentView(R.layout.activity_main); 
      ivCapture=(ImageView)findViewById(R.id.ivCapture); 
      ivCapture.setOnClickListener(this); 
     } 
     @Override 
     public void onClick(View v) { 
      // TODO Auto-generated method stub 

      Intent intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE); 
      startActivityForResult(intent, 0); 
     } 
     protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
       // TODO Auto-generated method stub 
       super.onActivityResult(requestCode, resultCode, data); 

       Bitmap bp = (Bitmap) data.getExtras().get("data"); 
       ivCapture.setImageBitmap(bp); 
      }