Question

我尝试创建一个获取图像文件的新意图，并根据意图的结果获得图像uri并设置为imageView但这在我的AVD中工作正常，甚至在Bluestacks中但在我的手机中不起作用（已安装）转换为apk后）。出现图像选择屏幕，但在选择图像后，只有空白显示在imageView中。

这是我的代码，点击imgView

imgView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent intent = new Intent();
            intent.setType("image/*");
            intent.setAction(Intent.ACTION_GET_CONTENT);
            startActivityForResult(Intent.createChooser(intent,"Select contact Image"),1);
        }
    });

my on intent from intent method

 public void onActivityResult(int reqCode,int resCode,Intent data)
{
    super.onActivityResult(reqCode,resCode,data);

    if(resCode==RESULT_OK) if (reqCode == 1) {

        imgView.setImageURI(data.getData());
        imgUri = data.getData();
    }

}

注意：我的图像视图是100 * 100像素的缩放图像视图

Answer 1

试试这个

//this code calls the app or phone to pick an image from the gallery    
    pick = 0;
    Intent i = new Intent(Intent.ACTION_PICK,android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
    startActivityForResult(i, pick);

并在结果活动中使用此

//process image gotten from gallery
                if (requestCode == pick && resultCode == getApplicationContext().RESULT_OK) {

                    Uri imgUri = data.getData();
Bitmap bitmap = null;

                try {
                    bitmap = BitmapFactory.decodeStream(getContentResolver().openInputStream(imgUri));
                } catch (FileNotFoundException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
                ImageView.setImageBitmap(bitmap);

}

图像未在移动设备中的ImageView中显示，但在AVD中工作

1 个答案: