使用ActivityGroup来切换Activity和Layout(LocalActivity...

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。

Intent.FLAG_ACTIVITY_CLEAR_TOP

Intent.FLAG_ACTIVITY_PREVIOUS_IS_TOP

 

正文

  一、效果图

    使用ActivityGroup来切换Activity和Layout(LocalActivity... 

    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

<?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>

复制代码

    2.2  TestView.java

/**
 * 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());
            }
        });
    }
}

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