Android 橫豎屏檢測代碼

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();
// 如果是橫屏則設為豎屏
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 ? "橫向屏幕"
: "豎向屏幕";
Toast.makeText(ChangeConfiguationActivity.this,
"系統屏幕方向發生了變化：" + screen, Toast.LENGTH_LONG).show();
}
}</pre>

 
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>