从gally选择出一个图片

Intent i = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.INTERNAL_CONTENT_URI); startActivityForResult(i, ACTIVITY_SELECT_IMAGE);  

 

或者

 

Intent intent = new Intent(Intent.ACTION_GET_CONTENT); 
intent.setType("image/*"); 
startActivityForResult(intent, IMAGE_PICK); 

然后主要是下面的实现

protected void onActivityResult(int requestCode, int resultCode, Intent imageReturnedIntent) {  
    super.onActivityResult(requestCode, resultCode, imageReturnedIntent);  
 
    switch(requestCode) {  
    case REQ_CODE_PICK_IMAGE: 
        if(resultCode == RESULT_OK){   
            Uri selectedImage = imageReturnedIntent.getData(); 
            String[] filePathColumn = {MediaStore.Images.Media.DATA}; 
 
            Cursor cursor = getContentResolver().query(selectedImage, filePathColumn, null, null, null); 
            cursor.moveToFirst(); 
 
            int columnIndex = cursor.getColumnIndex(filePathColumn[0]); 
            String filePath = cursor.getString(columnIndex); 
            cursor.close(); 
 
 
            Bitmap yourSelectedImage = BitmapFactory.decodeFile(filePath); 
        } 
    } 
}