使用ActivityGroup來切換Activity和Layout(LocalActivity...

前言java

   在一個主界面中作Activity切換通常都會用TabActivity,使用方便,Activity互相之間相對獨立,可是可定製性不強,並且修改起來很麻煩。固然也能夠把layout分開,把邏輯代碼全寫在主界面的邏輯代碼中,可是很明顯可維護性至關差,這裏經過ActivityGroup來解決這個問題。android

Intent.FLAG_ACTIVITY_CLEAR_TOPide

Intent.FLAG_ACTIVITY_PREVIOUS_IS_TOPthis

 

正文spa

  1、效果圖.net

     

    要求點擊底部不一樣圖片按鈕切換不一樣的Activity,並在中間顯示Activity對應的ContentView。3d

 

  2、 實現代碼xml

    2.1  layout.xmlblog

<?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="模塊1" android:layout_width="wrap_content"
            android:layout_height
="wrap_content"></TextView>
    
</LinearLayout>
    
<!-- 中間動態加載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">
        
<!-- 功能模塊按鈕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" />
        
<!-- 功能模塊按鈕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" />
        
<!-- 功能模塊按鈕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> 圖片

複製代碼

    2.2  TestView.java

/**
 * 使用ActivityGroup來切換Activity和Layout
 * 
@author  農民伯伯
 * 
@version 2010-9-7
 * 
 
*/
public class TestView extends ActivityGroup {

    
private ScrollView container = null;

    @Override
    
protected void onCreate(Bundle savedInstanceState) {
        
super.onCreate(savedInstanceState);
        
// 隱藏標題欄
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        
// 設置視圖
        setContentView(R.layout.layout);

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

        
// 模塊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());
            }
        });

        
// 模塊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());
            }
        });

        
// 模塊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());             }         });     } }