Android之在Layout中嵌入Activity

             有些複雜的布局的實現，這裡可以提供一個思路，在布局中嵌入自己的Activity，直接貼源碼：

1.ActivityInLayoutDemoActivity.java:

package com.zhf.ActivityInLayoutDemo;import java.util.HashMap;import java.util.Map;import android.app.ActivityGroup;import android.content.Intent;import android.os.Bundle;import android.view.View;import android.view.ViewGroup;import android.view.Window;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.LinearLayout;/** * 布局中嵌入Activity例子 * @author administrator * */public class ActivityInLayoutDemoActivity extends ActivityGroup {private LinearLayout container;private Button click1;private Button click2;/** * 子View管理 */private Map<String, View> childViews = new HashMap<String, View>();private String currentTag;@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);container = (LinearLayout) findViewById(R.id.container);click1 = (Button) findViewById(R.id.click1);click2 = (Button) findViewById(R.id.click2);click1.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View arg0) {startActivity("activity1", new Intent(ActivityInLayoutDemoActivity.this, Activity1.class));}});click2.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View arg0) {startActivity("activity2", new Intent(ActivityInLayoutDemoActivity.this, Activity2.class));}});}/** * 載入子Activity *  * @param tag * @param intent */private void startActivity(String tag, Intent intent) {if (currentTag != null) {View currentView = childViews.get(currentTag);if (currentView != null)currentView.setVisibility(View.GONE);}currentTag = tag;View originView = childViews.get(tag);final Window window = getLocalActivityManager().startActivity(tag,intent);final View decorView = window.getDecorView();if (decorView != originView && originView != null) {if (originView.getParent() != null)((ViewGroup) originView.getParent()).removeView(originView);}childViews.put(tag, decorView);if (decorView != null) {decorView.setVisibility(View.VISIBLE);decorView.setFocusableInTouchMode(true);((ViewGroup) decorView).setDescendantFocusability(ViewGroup.FOCUS_AFTER_DESCENDANTS);if (decorView.getParent() == null) {container.addView(decorView,new LinearLayout.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT,ViewGroup.LayoutParams.FILL_PARENT));}decorView.requestFocus();}}}

2.