ActivityGroup 与TabActivity

首先定义一个主布局文件

hello_activity.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/cust_title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/btn"
        android:textColor="@android:color/white"
        android:textSize="28sp" />

    <!-- 中间动态加载View -->

    <ScrollView
        android:id="@+id/containerBody"
        android:layout_width="fill_parent"
        android:layout_height="0dp"
        android:layout_weight="1"
        android:measureAllChildren="true" >
    </ScrollView>

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom"
        android:background="@android:color/black"
        android:orientation="horizontal" >

        <!-- 功能模块按钮1 -->

        <Button
            android:text="@string/btn"
            android:id="@+id/btnModule1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginBottom="3dp"
            android:layout_marginLeft="7dp"
            android:layout_marginTop="3dp" />
        <!-- 功能模块按钮2 -->

        <Button
             android:text="@string/btn"
            android:id="@+id/btnModule2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginBottom="3dp"
            android:layout_marginLeft="7dp"
            android:layout_marginTop="3dp" />
        <!-- 功能模块按钮3 -->

        <Button
             android:text="@string/btn"
            android:id="@+id/btnModule3"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginBottom="3dp"
            android:layout_marginLeft="7dp"
            android:layout_marginTop="3dp" />
    </LinearLayout>

</LinearLayout>

   

HelloActivity.java

/*
 * Copyright (C) 2007 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.example.android.helloactivity;
import android.view.View;
import android.content.ComponentName;
import android.content.Intent;
import android.widget.Button;
import android.widget.ScrollView;
//import android.media.MediaScanner; @hide
import android.media.MediaPlayer;
import android.app.Activity;
import android.app.ActivityGroup;
import android.app.ProgressDialog;
import android.os.Bundle;
import android.os.SystemClock;
import android.graphics.Paint;
import android.os.Handler;
import android.widget.Toast;
import android.util.Log;
public class HelloActivity extends ActivityGroup {

    //am start -n com.cmcc.mbbms/com.cmcc.mbbms.MainActivity
    
    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.hello_activity);

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

        // 模块1
        Button btnModule1 = (Button) findViewById(R.id.btnModule1);
        btnModule1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                container.removeAllViews();
                Intent intent =  new Intent();
                ComponentName comp = new ComponentName(
                        "com.cmcc.mbbms",
                        "com.cmcc.mbbms.MainActivity");
                intent.setComponent(comp);
            
                container.addView(getLocalActivityManager().startActivity(
                        "Module1",
                        intent)
                        .getDecorView());
            }
        });

        // 模块2
        Button btnModule2 = (Button) findViewById(R.id.btnModule2);
        btnModule2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                container.removeAllViews();
                Intent intent =  new Intent();
                ComponentName comp = new ComponentName(
                        "com.android.calendar",
                        "com.android.calendar.MonthActivity");
                intent.setComponent(comp);
            
                container.addView(getLocalActivityManager().startActivity(
                        "Module2",
                        intent)
                        .getDecorView());
            }
        });


        // 模块3
        Button btnModule3 = (Button) findViewById(R.id.btnModule3);
        btnModule3.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                container.removeAllViews();
                Intent intent =  new Intent();
                ComponentName comp = new ComponentName(
                        "com.android.soundrecorder",
                        "com.android.soundrecorder.SoundRecorder");
                intent.setComponent(comp);
            
                container.addView(getLocalActivityManager().startActivity(
                        "Module3",
                        intent)
                        .getDecorView());
            }
        });

    }
}

  

ActivityGroup 为什么不能启动一个其他进程的Activity

解决方法：
1、在activityThread.java的代码里添加对安全忽略即可。
 r.packageInfo = getPackageInfo(aInfo.applicationInfo,
  Context.CONTEXT_INCLUDE_CODE + Context.CONTEXT_IGNORE_SECURITY);

2、 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
  package="com.test"
  android:versionCode="1"
  android:sharedUserId="com.android.activitygrouptest"
  android:versionName="1.0">

设定sharedUserId一致就可以了，这样两个apk会加载到同一个process中运行，同时要把你要启动的activity launchemode 设定为singletop。

只能启动同一个进程的Actvity  Intent intent =  new Intent(HelloActivity.this,HelloActivity1.class);

public class HelloActivity2 extends ActivityGroup {

     @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
       //动态添加按钮
        LinearLayout  tp = new LinearLayout(this);
        LayoutParams ltp = new LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT);
        Button btn = new Button(this);
        btn.setWidth(100);
        btn.setText("HelloActivity2");
        tp.addView(btn,ltp);
        this.setContentView(tp);
    }
}