Question

在我的Android应用程序中，我将一个字符串值附加到我的图像选择器事件。然后我想要恢复它，但它一直得到一个空值。

有谁知道什么是错的？

由于

        Intent intent = new Intent();
        intent.setType("image/*");
        intent.setAction(Intent.ACTION_GET_CONTENT);
        Intent image_chooser = Intent.createChooser(intent, getString(R.string.select_picture));
        image_chooser.putExtra("type", "6"); 
        startActivityForResult(image_chooser, SELECT_PICTURE);

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (resultCode == RESULT_OK) {
        String type = data.getExtras().getString("type");  // -- > null
        if (type.equals("5")) {
            Bitmap bitmap = MyImage.GetBitmapFromPath(this, data.getData(), 240, 180);
            new Async_up_image(bitmap, NavigationScreen.CategoryWhosOptionsClicked);
        } else {
            analyze(data);
        }
    }
}

Answer 1

请尝试这种方式，希望这有助于您解决问题。

HashMap<Integer,String> map = new HashMap<Integer, String>();

Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
Intent image_chooser = Intent.createChooser(intent, getString(R.string.select_picture));
map.put(SELECT_PICTURE,"6");
startActivityForResult(image_chooser, SELECT_PICTURE);

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (resultCode == RESULT_OK) {
        if(requestCode==SELECT_PICTURE) {
           String type = map.get(requestCode);
           if (type.equals("5")) {
               Bitmap bitmap = MyImage.GetBitmapFromPath(this, data.getData(), 240, 180);
               new Async_up_image(bitmap, NavigationScreen.CategoryWhosOptionsClicked);
           } else {
               analyze(data);
           }
         }
    }
}

如何将字符串值附加到android中的图像选择器意图？

1 个答案: