Android(安卓)旋转屏幕捕获当前屏幕的状态

1）在AndroidManifest.xml中添加代码

android:configChanges="orientation|screenSize"

表示捕获旋转屏幕方向时触发onConfigurationChanged事件

文件全部代码如下

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="com.example.androidappdemo"    android:versionCode="1"    android:versionName="1.0" >    <uses-sdk        android:minSdkVersion="8"        android:targetSdkVersion="17" />    <application        android:allowBackup="true"        android:icon="@drawable/ic_launcher"        android:label="@string/app_name"        android:theme="@style/AppTheme" >        <activity            android:name="com.example.androidappdemo.MainActivity"            android:label="@string/app_name"             android:configChanges="orientation|screenSize">            <!--申明activity要捕获的事件类型 -->                        <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>        </activity>    </application></manifest>

2）修改MainActivity.java代码如下

package com.example.androidappdemo;import android.os.Bundle;import android.app.Activity;import android.content.res.Configuration;import android.view.Menu;import android.widget.TextView;public class MainActivity extends Activity {private TextView textView1=null;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);textView1=(TextView)findViewById(R.id.textView1);textView1.setText("加载屏幕");}/* * * 屏幕旋转时调用此方法 * */@Overridepublic void onConfigurationChanged(Configuration newConfig){//newConfig.orientation获取当前屏幕状态时横向或者竖向if(newConfig.orientation==Configuration.ORIENTATION_LANDSCAPE){textView1.setText("现在是横屏");}if(newConfig.orientation==Configuration.ORIENTATION_PORTRAIT){textView1.setText("现在是竖屏");}super.onConfigurationChanged(newConfig);}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.main, menu);return true;}}

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