????????? 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。
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package com.ffly.demo; 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.ScrollView; public class MainActivity extends ActivityGroup implements OnClickListener { private ScrollView mScroll = null; private ImageView mImgBtn1 = null; private ImageView mImgBtn2 = null; private ImageView mImgBtn3 = null; private LocalActivityManager mActivityManager = null; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); mScroll = (ScrollView) findViewById(R.id.containerBody); mImgBtn1 = (ImageView) findViewById(R.id.btnModule1); mImgBtn2 = (ImageView) findViewById(R.id.btnModule2); mImgBtn3 = (ImageView) findViewById(R.id.btnModule3); mImgBtn1.setOnClickListener(this); mImgBtn2.setOnClickListener(this); mImgBtn3.setOnClickListener(this); mActivityManager = getLocalActivityManager(); } @Override public void onClick(View v) { switch (v.getId()) { case R.id.btnModule1: mScroll.removeAllViews(); mScroll.addView(mActivityManager.startActivity("", new Intent(this, ActivityTest1.class)).getDecorView()); break; case R.id.btnModule2: mScroll.removeAllViews(); mScroll.addView(mActivityManager.startActivity("", new Intent(this, ActivityTest2.class)).getDecorView()); break; case R.id.btnModule3: break; } } }?
<?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" > <LinearLayout android:gravity="center_horizontal" android:background="#fc9999" 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="ActivityGroup" 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>?