Android开发之动态生成RelativeLay…

我们的XML文件配置如下

<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
 
 
xmlns:tools="http://schemas.android.com/tools"
 
  android:layout_width="match_parent"
 
 
android:layout_height="match_parent"
 
 
tools:context=".MainActivity" 
 
 
android:id="@+id/mylayout">

 
 
<ImageView 
 
     
android:id="@+id/img1"
 
     
android:layout_width="wrap_content"
 
     
android:layout_height="wrap_content"
 
     
android:src="@drawable/ic_launcher" />

</RelativeLayout>

java文件如下

package
com.example.relativelayoutdemo2;

import
android.os.Bundle;
import
android.app.Activity;
import
android.view.Menu;
import
android.view.ViewGroup;
import
android.widget.EditText;
import
android.widget.RelativeLayout;

public class
MainActivity extends Activity {

protected void
onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//找到我们的布局管理器
RelativeLayout
rl=(RelativeLayout)super.findViewById(R.id.mylayout);
RelativeLayout.LayoutParams param=new
RelativeLayout.LayoutParams(
ViewGroup.LayoutParams.FILL_PARENT,
ViewGroup.LayoutParams.FILL_PARENT);
//表示新的组件放在图片的右边
param.addRule(RelativeLayout.RIGHT_OF,R.id.img1);
EditText
text=new EditText(this);
rl.addView(text,param);
}
}