Android：在ViewFlipper中以编程方式定义RelativeLayout

Question

基于此article，我尝试构建一个包含多个RelativeLayouts的ViewFlipper。

当按照文章中的说明进行处理（仅更改高度）时，我得到（正如预期的）通常显示的ViewFlipper：

我的xml：

 <ViewFlipper
      android:id="@+id/view_flipper"
      android:layout_width="fill_parent"
      android:layout_height="200dp" >

      <RelativeLayout
          android:layout_width="fill_parent"
          android:layout_height="fill_parent" >

          <ImageView
              android:layout_width="fill_parent"
              android:layout_height="fill_parent"
              android:layout_gravity="center"
              android:adjustViewBounds="true"
              android:scaleType="centerCrop"
              android:src="@drawable/img1" />

          <TextView
              style="@style/ImageTitle"
              android:text="Test test" />
      </RelativeLayout>
  </ViewFlipper>

风格：

<style name="ImageTitle">
        <item name="android:layout_width">fill_parent</item>
        <item name="android:layout_height">50dp</item>
        <item name="android:layout_alignParentBottom">true</item>
        <item name="android:background">#99000000</item>
        <item name="android:gravity">center</item>
        <item name="android:maxLines">2</item>
        <item name="android:textColor">#fff</item>
        <item name="android:textStyle">bold</item>
        <item name="android:textSize">18sp</item>
        <item name="android:typeface">sans</item>
</style>

然后我尝试使用以下代码以编程方式生成RelativeLayout：

public void generateViewForFlipper(String url, int id, String text){

    //new RelativeLayout
    RelativeLayout relativeLayout = new RelativeLayout(this);

    //Params for the RelaviteLayout
     final ViewFlipper.LayoutParams frameLayoutLayoutParams = new ViewFlipper.LayoutParams(
             ViewFlipper.LayoutParams.MATCH_PARENT,ViewFlipper.LayoutParams.MATCH_PARENT);

     //ImageView
     ImageView imageView = new ImageView (this);
     imageView.setImageDrawable(getResources().getDrawable(R.drawable.img1));
     imageView.setScaleType(ScaleType.CENTER_INSIDE);
     imageView.setAdjustViewBounds(true);

     // Params for the ImageView
     final RelativeLayout.LayoutParams imageParams = new RelativeLayout.LayoutParams(
             RelativeLayout.LayoutParams.MATCH_PARENT,RelativeLayout.LayoutParams.MATCH_PARENT );

     //Application title
     TextView textView = (TextView)getLayoutInflater().inflate(R.layout.tvtemplate, null);
     textView.setText(text);


    // Params for application title
     final RelativeLayout.LayoutParams textParams = new RelativeLayout.LayoutParams(
             LinearLayout.LayoutParams.MATCH_PARENT, 50);


     mViewFlipper.addView(relativeLayout, frameLayoutLayoutParams);

     relativeLayout.addView(imageView,imageParams);
     relativeLayout.addView(textView,textParams);

}

tvtemplate.xml：

<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
        style="@style/ImageTitle" />

结果屏幕：

正如您所看到的，文本未与底部对齐，而不是“match_parent”，并且图片未被裁剪..

谢谢