ActivityGroup实现Tab效果

相对于TabActivity来说，ActivityGroup实现Tab更加灵活。

xml布局文件：

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

    <LinearLayout
        android:id="@+id/containerBody"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:orientation="vertical" ></LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="5"
        android:orientation="horizontal">

        <ImageView
            android:id="@+id/imageView1"
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:src="@drawable/toolbar_cost" />

        <ImageView
            android:id="@+id/imageView2"
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:src="@drawable/toolbar_count" />

    </LinearLayout>

</LinearLayout>

Activity类：

package com.zzj.ui;

import android.app.ActivityGroup;
import android.app.LocalActivityManager;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageView;
import android.widget.LinearLayout;

@SuppressWarnings("deprecation")
public class MyActivityGroup extends ActivityGroup {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activitygroup);
        init();
    }

    private void init() {
        final LinearLayout containerBody = (LinearLayout) this
                .findViewById(R.id.containerBody);
        final LocalActivityManager activityManager = getLocalActivityManager();//获取Activity管理器
        containerBody.addView(activityManager.startActivity("tag1",
                new Intent(MyActivityGroup.this, Tab1.class)).getDecorView());

        ImageView imageView = (ImageView) this.findViewById(R.id.imageView1);
        imageView.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                containerBody.removeAllViews();
                containerBody.addView(activityManager.startActivity(
                        "tag1",
                        new Intent(MyActivityGroup.this, Tab1.class)
                                .addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP))
                        .getDecorView());
            }
        });

        ImageView imageView2 = (ImageView) this.findViewById(R.id.imageView2);
        imageView2.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                containerBody.removeAllViews();
                containerBody.addView(activityManager.startActivity(
                        "tag2",
                        new Intent(MyActivityGroup.this, Tab2.class)
                                .addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP))
                        .getDecorView());
            }
        });
    }
}

Tab1和Tab2的布局文件和类文件就省略了，就是普通的Activity。

 

效果：