在一个页面中显示多个activity

今天项目要求在一个页面中显示多个activity，在网上差了些资料，整理并写了个demo测试了，功能实现了。

首先主界面要用GroupActivity,他是系统中继承Activity的一个类，详细的查看sdk文档。关键就是用到了一个LocationActivityManager类，对GroupActivity的子类进行管理。

MainActivity.javas实现：

package com.android.qiu.activitygroup;

import android.app.ActivityGroup;

import android.app.LocalActivityManager;

import android.content.Intent;

import android.os.Bundle;

import android.util.Log;

import android.view.View;

import android.view.Window;

import android.view.ViewGroup.LayoutParams;

import android.widget.LinearLayout;

import android.widget.RadioButton;

import android.widget.RadioGroup;

import android.widget.RelativeLayout;

import android.widget.RadioGroup.OnCheckedChangeListener;

public class MainActivity extends ActivityGroup {

private final String TAG = "MainActivity";

private RadioGroup radiogroup;

private RadioButton radioBtn1;

private RadioButton radioBtn2;

private LocalActivityManager activitymanager;

private LinearLayout layout_load;

@Override

protected void onCreate(Bundle savedInstanceState) {

// TODO Auto-generated method stub

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

radiogroup = (RadioGroup) findViewById(R.id.mainRadioGroup);

radioBtn1 = (RadioButton) findViewById(R.id.radioBtn1);

radioBtn2 = (RadioButton) findViewById(R.id.radioBtn2);

activitymanager = getLocalActivityManager();

layout_load = (LinearLayout) findViewById(R.id.LinearLayout);

radiogroup.setOnCheckedChangeListener(new OnCheckedChangeListener() {

@Override

public void onCheckedChanged(RadioGroup group, int checkedId) {

// TODO Auto-generated method stub

if (checkedId == radioBtn1.getId()) {

Intent intent = new Intent(MainActivity.this,

ActivityA.class);

intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

Window w = activitymanager.startActivity("A", intent);

View v = w.getDecorView();

layout_load.removeAllViews();

layout_load.setPadding(5, 5, 5, 5);

// layout_load.addView(v);

layout_load

.addView(v, new LayoutParams(

LayoutParams.FILL_PARENT,

LayoutParams.WRAP_CONTENT));

Log.v(TAG, "******JJJJ");/*

* layout_load.addView(v, new

* RelativeLayout.LayoutParams(

* RelativeLayout

* .LayoutParams.FILL_PARENT,

* LinearLayout

* .LayoutParams.FILL_PARENT));

*/

} else if (checkedId == radioBtn2.getId()) {

Intent intent2 = new Intent(MainActivity.this,

ActivityB.class);

intent2.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

Window w2 = activitymanager.startActivity("B", intent2);

View v2 = w2.getDecorView();

layout_load.removeAllViews();

layout_load.setPadding(5, 5, 5, 5);

// layout_load.addView(v2);

layout_load

.addView(v2, new LayoutParams(

LayoutParams.FILL_PARENT,

LayoutParams.WRAP_CONTENT));

Log.v(TAG, "******GGGG");

}

}

});

}

}

main.xml 文件：

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:orientation="vertical" android:layout_width="fill_parent"

android:layout_height="fill_parent">

<RelativeLayout android:id="@+id/relativelayout"

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

<LinearLayout android:id="@+id/LinearLayout"

android:layout_width="wrap_content" android:layout_height="wrap_content" />

<RadioGroup android:id="@+id/mainRadioGroup"

android:layout_alignParentBottom="true" android:orientation="horizontal"

android:layout_width="fill_parent" android:layout_height="wrap_content">

<RadioButton android:id="@+id/radioBtn1"

android:layout_width="wrap_content" android:layout_height="wrap_content"

android:text="页面一"></RadioButton>

<RadioButton android:id="@+id/radioBtn2"

android:layout_width="wrap_content" android:layout_height="wrap_content"

android:layout_marginLeft="20dip" android:text="页面二"></RadioButton>

</RadioGroup>

</RelativeLayout>

</LinearLayout>

ActivityA.java 实现：

package com.android.qiu.activitygroup;

import android.app.Activity;

import android.os.Bundle;

import android.view.View;

import android.widget.Button;

import android.widget.TextView;

public class ActivityA extends Activity {

@Override

protected void onCreate(Bundle savedInstanceState) {

// TODO Auto-generated method stub

super.onCreate(savedInstanceState);

setContentView(R.layout.layout);

final TextView tv = (TextView)findViewById(R.id.tv2);

Button change = (Button)findViewById(R.id.changeBtn);

change.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

// TODO Auto-generated method stub

tv.setText("在自己的activity中相应");

}

});

}

}

layout.xml文件：

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:orientation="vertical"

android:layout_width="fill_parent"

android:layout_height="fill_parent"

>

<TextView android:text="页面二"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:id="@+id/tv2"

></TextView>

<Button android:id="@+id/changeBtn"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="改变"

></Button>

</LinearLayout>

ActivityB.java实现：

package com.android.qiu.activitygroup;

import android.app.Activity;

import android.os.Bundle;

public class ActivityB extends Activity {

@Override

protected void onCreate(Bundle savedInstanceState) {

// TODO Auto-generated method stub

super.onCreate(savedInstanceState);

setContentView(R.layout.layout1);

}

}

layout1.xml文件：

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:orientation="vertical"

android:layout_width="fill_parent"

android:layout_height="fill_parent"

>

<TextView android:text="页面一"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

></TextView>

</LinearLayout>