自定义标题栏（并加入返回按钮）

    废话不多说，直接上代码：

    Java代码：

    Main.java

package com.JavaTiger;import android.app.Activity;import android.app.AlertDialog;import android.content.DialogInterface;import android.content.Intent;import android.os.Bundle;import android.view.KeyEvent;import android.view.View;import android.view.Window;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.TextView;public class Main extends Activity {@Overridepublic void onCreate(Bundle savedInstanceState) {setTheme(R.style.CustomTheme);super.onCreate(savedInstanceState);requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);setContentView(R.layout.main);getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.title);tvTitle = (TextView) findViewById(R.id.Titletext);tvTitle.setText("标题栏返回按钮测试界面1");btnBack = (Button) findViewById(R.id.TitleBackBtn);btnBack.setOnClickListener(new OnClickListener() {public void onClick(View v) {KeyEvent newEvent = new KeyEvent(KeyEvent.ACTION_DOWN,KeyEvent.KEYCODE_BACK);onKeyDown(KeyEvent.KEYCODE_BACK, newEvent);}});btnNext = (Button) findViewById(R.id.Button);btnNext.setOnClickListener(new OnClickListener() {public void onClick(View v) {Intent intent = new Intent();intent.setClass(Main.this, Next.class);startActivity(intent);}});}@Overridepublic boolean onKeyDown(int keyCode, KeyEvent event) {if (keyCode == KeyEvent.KEYCODE_BACK && event.getRepeatCount() == 0) {// 按下的如果是BACK，同时没有重复askForOut();return true;}return super.onKeyDown(keyCode, event);}private void askForOut() {AlertDialog.Builder builder = new AlertDialog.Builder(this);builder.setTitle("确定退出").setMessage("确定退出？").setPositiveButton("确定",new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int which) {finish();}}).setNegativeButton("取消",new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int which) {dialog.cancel();}}).setCancelable(false).show();}public TextView tvTitle;public Button btnBack;public Button btnNext;}

注意：上面代码中红色代码的顺序，不能随便改变，一定要按照次顺序，否则会报错！

Next.java

package com.JavaTiger;import android.app.Activity;import android.os.Bundle;import android.view.KeyEvent;import android.view.View;import android.view.Window;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.TextView;public class Next extends Activity {@Overridepublic void onCreate(Bundle savedInstanceState) {setTheme(R.style.CustomTheme);super.onCreate(savedInstanceState);requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);setContentView(R.layout.next);getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.title);tvTitle = (TextView) findViewById(R.id.Titletext);tvTitle.setText("标题栏返回按钮测试界面2");btnBack = (Button) findViewById(R.id.TitleBackBtn);btnBack.setOnClickListener(new OnClickListener() {public void onClick(View v) {KeyEvent newEvent = new KeyEvent(KeyEvent.ACTION_DOWN,KeyEvent.KEYCODE_BACK);onKeyDown(KeyEvent.KEYCODE_BACK, newEvent);}});}public Button btnBack;public TextView tvTitle;}

xml布局文件：

style.xml

<?xml version="1.0" encoding="utf-8"?>  <resources>  <style name="CustomTheme" parent="android:Theme">  <item name="android:windowTitleSize">40dip</item>  </style>  </resources> 

title.xml

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="fill_parent"  android:layout_height="fill_parent">  <TextView  android:id="@+id/Titletext"           android:layout_width="wrap_content"        android:layout_height="wrap_content"           android:layout_alignParentLeft="true"        android:textSize="21dp"        android:layout_marginTop="3dp"        android:textColor="#ffffffff"        android:textStyle="bold"/>   <Buttonandroid:id="@+id/TitleBackBtn"        android:layout_width="wrap_content"           android:layout_height="wrap_content"        android:background="@drawable/back"        android:gravity="center"        android:layout_marginTop="9dp"        android:layout_alignParentRight="true"/></RelativeLayout>

main.xml

<?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"><TextView    android:layout_width="fill_parent"     android:layout_height="wrap_content"     android:text="@string/hello"/><Buttonandroid:text="跳转"android:id="@+id/Button"android:layout_width="wrap_content"android:layout_height="wrap_content"/></LinearLayout>

next.xml

<?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"><TextView    android:layout_width="fill_parent"     android:layout_height="wrap_content"     android:text="请按标题栏上的返回键返回上个界面"/></LinearLayout>

欲行效果图如下：

          

demo源码下载链接 TitliBarBackBtn.rar