自定义对话框中的ImageView - fill_parent不起作用，我的对话框很小

Question

我有一个简单的要求：我必须在对话框中放置一些图片（一些小分辨率，一些大分辨率）并全屏显示。

我试过了：

Dialog dialog = new Dialog(getActivity());
dialog.setContentView(R.layout.custom_dialog);
int picId = Integer.valueOf(webcamCursor.getString(webcamCursor
        .getColumnIndex("_id")));
dialog.setTitle(webcamCursor.getString(webcamCursor
        .getColumnIndex("City")));
image = (ImageView) dialog.findViewById(R.id.image);
image.setImageResource(R.drawable.icon);            
new DownloadPicTask().execute(Snippets.getUrlFromCat(picId, cat));
dialog.show();

我的布局是：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              android:id="@+id/layout_root"
              android:orientation="vertical"
              android:layout_width="fill_parent"
              android:layout_height="fill_parent"
              android:layout_gravity="center"
              >
    <ImageView android:id="@+id/image"
               android:layout_width="fill_parent"
               android:layout_height="fill_parent"
               android:padding="10dip"
               />
</LinearLayout>

当我在任何地方写下fill_parent时，对话框不应该全屏显示吗？

Answer 1

试试：

dialog.getWindow().getAttributes().width = LayoutParams.FILL_PARENT;

希望它有所帮助。

Answer 2

try this will work

//Grab the window of the dialog, and change the width
        WindowManager.LayoutParams lp = new WindowManager.LayoutParams();
        Window window = dialog.getWindow();
        lp.copyFrom(window.getAttributes());
        //This makes the dialog take up the full width
        lp.width = WindowManager.LayoutParams.MATCH_PARENT;
        lp.height = WindowManager.LayoutParams.MATCH_PARENT;
        window.setAttributes(lp);