java将ImageView添加到ViewFlipper不工作

Question

我想在ViewFlipper上添加ImageView并尝试以下代码

ViewFlipper flipVertical = (ViewFlipper)findViewById(R.id.slideVer);
Bitmap bitmap = BitmapFactory.decodeFile("sdcard/vm/picture/vertical/VB-Logo.png");
ImageView imageView = new ImageView(this);
imageView.setImageBitmap(bitmap);
flipVertical.addView(imageView);

与我使用的代码一样，该代码没有任何效果

ViewFlipper flipVertical = (ViewFlipper)findViewById(R.id.slideVer);
Uri uriImage = Uri.parse("file:///sdcard/vm/picture/vertical/VB-Logo.png");
imageView.setImageURI(uriImage);
flipVertical.addView(imageView);

我该怎么办？？：(

Answer 1

你可以试试下面

     ViewFlipper flipVertical = (ViewFlipper)findViewById(R.id.slideVer);
     Bitmap bitmap = BitmapFactory.decodeFile(Environment.getExternalStorageDirectory().getPath() + "/vm/picture/vertical/VB-Logo.png");

    LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
            LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
    params.gravity = Gravity.CENTER;

    ImageView imageView = new ImageView(this);
    imageView.setImageBitmap(bitmap);
    flipVertical.addView(imageView, params);

如果您没有添加访问SD卡的权限，请在Manifest.xml文件中添加这些权限

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />