從相機或相冊中選擇一張圖片

Question

如何向用戶提供從相機或相冊中選擇圖像並檢索相關資源ID的選項？

Answer 1

嘗試以此爲目的

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

這裏是你如何retreive返回的圖像。

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); 
    } 
} 
}