Android 橫豎屏檢測

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();
}

}

AndroidManifest.xml 配置

android:configChanges="orientation"

android:name=".XXX"
android:configChanges="orientation"
android:label="@string/app_name" >