Android 横竖屏检测

package com.example;

import android.app.Activity;

import android.content.pm.ActivityInfo;

import android.content.res.Configuration;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.Toast;

public class ChangeConfiguationActivity extends Activity {

@Override

protected void onCreate(Bundle savedInstanceState) {

// TODO Auto-generated method stub

super.onCreate(savedInstanceState);

setContentView(R.layout.configuration_layout);

Button btn = (Button) findViewById(R.id.bn);

btn.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

Configuration config = getResources().getConfiguration();

// 如果是横屏则设为竖屏

if (config.orientation == Configuration.ORIENTATION_LANDSCAPE) {

ChangeConfiguationActivity.this

.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);

} else {

ChangeConfiguationActivity.this

.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);

}

}

});

}

@Override

public void onConfigurationChanged(Configuration newConfig) {

super.onConfigurationChanged(newConfig);

String screen = newConfig.orientation == Configuration.ORIENTATION_LANDSCAPE ? "横向屏幕"

: "竖向屏幕";

Toast.makeText(ChangeConfiguationActivity.this,

"系统屏幕方向发生了变化：" + screen, Toast.LENGTH_LONG).show();

}

}

AndroidManifest.xml 配置

<uses-permission android:name="android.permission.CHANGE_CONFIGURATION" />

android:configChanges="orientation"

<activity

android:name=".XXX"

android:configChanges="orientation"

android:label="@string/app_name" >

<intent-filter>

<action android:name="android.intent.action.MAIN" />

<category android:name="android.intent.category.LAUNCHER" />

</intent-filter>

</activity>