[置顶] 使用ActivityGroup来切换Activity和Layout

 前言

      在一个主界面中做Activity切换一般都会用TabActivity,使用方便,Activity互相之间相对独立,但是可定制性不强,而且修改起来 很麻烦。当然也可以把layout分开,把逻辑代码全写在主界面的逻辑代码中,但是很明显可维护性相当差,这里通过ActivityGroup来解决这个 问题。

正文

  一、效果图

    [置顶] 使用ActivityGroup来切换Activity和Layout_第1张图片

    要求点击底部不同图片按钮切换不同的Activity,并在中间显示Activity对应的ContentView。

  二、 实现代码

    2.1  layout.xml

<!--

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--> <? xml version="1.0" encoding="utf-8" ?>
< LinearLayout xmlns:android ="http://schemas.android.com/apk/res/android"
android:layout_width
="fill_parent" android:orientation ="vertical"
android:layout_height
="fill_parent" >
< LinearLayout android:gravity ="center_horizontal"
android:background
="@drawable/myinfor2" android:layout_width ="fill_parent"
android:layout_height
="wrap_content" >
< TextView android:id ="@+id/cust_title" android:textColor ="@android:color/white"
android:textSize
="28sp" android:text ="模块1" android:layout_width ="wrap_content"
android:layout_height
="wrap_content" ></ TextView >
</ LinearLayout >
<!-- 中间动态加载View -->
< ScrollView android:measureAllChildren ="true" android:id ="@+id/containerBody"
android:layout_weight
="1" android:layout_height ="fill_parent"
android:layout_width
="fill_parent" >
</ ScrollView >
< LinearLayout android:background ="@android:color/black"
android:layout_gravity
="bottom" android:orientation ="horizontal"
android:layout_width
="fill_parent" android:layout_height ="wrap_content" >
<!-- 功能模块按钮1 -->
< ImageView android:id ="@+id/btnModule1" android:src ="@android:drawable/ic_dialog_dialer"
android:layout_marginLeft
="7dp" android:layout_marginTop ="3dp"
android:layout_marginBottom
="3dp" android:layout_width ="wrap_content"
android:layout_height
="wrap_content" />
<!-- 功能模块按钮2 -->
< ImageView android:id ="@+id/btnModule2" android:src ="@android:drawable/ic_dialog_info"
android:layout_marginLeft
="7dp" android:layout_marginTop ="3dp"
android:layout_marginBottom
="3dp" android:layout_width ="wrap_content"
android:layout_height
="wrap_content" />
<!-- 功能模块按钮3 -->
< ImageView android:id ="@+id/btnModule3" android:src ="@android:drawable/ic_dialog_alert"
android:layout_marginLeft
="7dp" android:layout_marginTop ="3dp"
android:layout_marginBottom
="3dp" android:layout_width ="wrap_content"
android:layout_height
="wrap_content" />
</ LinearLayout >
</ LinearLayout >

    2.2  TestView.java

<!--

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--> /**
* 使用ActivityGroup来切换Activity和Layout
*
@author 农民伯伯
*
@version 2010-9-7
*
*/
public class TestView extends ActivityGroup {

private ScrollView container = null ;

@Override
protected void onCreate(Bundle savedInstanceState) {
super .onCreate(savedInstanceState);
// 隐藏标题栏
requestWindowFeature(Window.FEATURE_NO_TITLE);
// 设置视图
setContentView(R.layout.layout);

container
= (ScrollView) findViewById(R.id.containerBody);

// 模块1
ImageView btnModule1 = (ImageView) findViewById(R.id.btnModule1);
btnModule1.setOnClickListener(
new OnClickListener() {
@Override
public void onClick(View v) {
container.removeAllViews();
container.addView(getLocalActivityManager().startActivity(
" Module1 " ,
new Intent(TestView. this , ModuleView1. class )
.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP))
.getDecorView());
}
});

// 模块2
ImageView btnModule2 = (ImageView) findViewById(R.id.btnModule2);
btnModule2.setOnClickListener(
new OnClickListener() {
@Override
public void onClick(View v) {
container.removeAllViews();
container.addView(getLocalActivityManager().startActivity(
" Module2 " ,
new Intent(TestView. this , ModuleView2. class )
.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP))
.getDecorView());
}
});

// 模块3
ImageView btnModule3 = (ImageView) findViewById(R.id.btnModule3);
btnModule3.setOnClickListener(
new OnClickListener() {
@Override
public void onClick(View v) {
container.removeAllViews();
container.addView(getLocalActivityManager().startActivity(
" Module3 " ,
new Intent(TestView. this , ModuleView3. class )
.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP))
.getDecorView());
}
});
}
}

    代码说明:

      a).  ModuleView1、ModuleView2 ModuleView3分别继承自Activity。

      b).  想动态改变标题可以通过cust_title获取TextView进行设置。

  

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