飞行模式

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开启/关闭/监听飞行模式开启/关闭/监听飞行模式

具体实现结合如下图片：

[java] view plain copy
package lab.sodino.airplane;  
import java.text.SimpleDateFormat;  
import java.util.Calendar;  
import android.app.Activity;  
import android.content.BroadcastReceiver;  
import android.content.Context;  
import android.content.Intent;  
import android.content.IntentFilter;  
import android.os.Bundle;  
import android.provider.Settings;  
import android.util.Log;  
import android.view.View;  
import android.widget.Button;  
import android.widget.TextView;  
import android.widget.Toast;  
/** 
 * @author Sodino Email:sodinoopen@hotmail.com 
 * */  
public class AirPlaneAct extends Activity {  
    private TextView txtInfo;  
    public void onCreate(Bundle savedInstanceState) {  
        super.onCreate(savedInstanceState);  
        setContentView(R.layout.main);  
        txtInfo = (TextView) findViewById(R.id.txtInfo);  
        Button btnIsAirPlane = (Button) findViewById(R.id.btnIsAirPlane);  
        btnIsAirPlane.setOnClickListener(new Button.OnClickListener() {  
            public void onClick(View view) {  
                isAirplaneModeOn();  
            }  
        });  
        final Button btnSetAirPlane = (Button) findViewById(R.id.btnSetAirPlane);  
        btnSetAirPlane.setOnClickListener(new Button.OnClickListener() {  
            public void onClick(View view) {  
                setAirplaneMode(true);  
            }  
        });  
        final Button btnCancelAirPlane = (Button) findViewById(R.id.btnCancelAirPlane);  
        btnCancelAirPlane.setOnClickListener(new Button.OnClickListener() {  
            public void onClick(View view) {  
                setAirplaneMode(false);  
            }  
        });  
        IntentFilter intentFilter = new IntentFilter("android.intent.action.SERVICE_STATE");  
        BroadcastReceiver receiver = new BroadcastReceiver() {  
            @Override  
            public void onReceive(Context context, Intent intent) {  
                Log.d("ANDROID_INFO", "Service state changed");  
                Bundle bundle = intent.getExtras();  
                if (bundle != null) {  
                    txtInfo.append(formateToLogTime(System.currentTimeMillis()) + " Service state changed action="  
                            + intent.getAction() + "/n");  
                    /** 
                     * Set<String> set = bundle.keySet();<br/> 
                     * key=manual value=0 <br/> 
                     * key=cdmaRoamingIndicator value=-1 Integer<br/> 
                     * key=operator-numeric value=0<br/> 
                     * key=cssIndicator value=0 Boolean<br/> 
                     * key=operator-alpha-long value=0<br/> 
                     * key=networkId value=-1<br/> 
                     * key=state value=0 Integer<br/> 
                     * key=emergencyOnly value=0 Boolean<br/> 
                     * key=systemId value=-1 Integer<br/> 
                     * key=roaming value=0 Boolean<br/> 
                     * key=operator-alpha-short value=0<br/> 
                     * key=cdmaDefaultRoamingIndicator value=-1 Integer<br/> 
                     * key=radioTechnology value=2 Integer<br/> 
                     */  
                    int state = bundle.getInt("state");  
                    Log.d("ANDROID_INFO", "state = " + state);  
                    txtInfo.append(formateToLogTime(System.currentTimeMillis()) + " state = " + state);  
                    switch (state) {  
                    case 0x00:  
                        Log.d("ANDROID_INFO", "Connect the net successfully.");  
                        txtInfo.append(" Connect the net successfully.");  
                        btnSetAirPlane.setEnabled(true);  
                        btnCancelAirPlane.setEnabled(false);  
                        break;  
                    case 0x01:  
                        Log.d("ANDROID_INFO", "Try to connect the net.");  
                        txtInfo.append(" Try to connect the net.");  
                        btnSetAirPlane.setEnabled(false);  
                        btnCancelAirPlane.setEnabled(true);  
                        break;  
                    case 0x03:  
                        Log.d("ANDROID_INFO", "Set AirPlaneMode Successful.");  
                        txtInfo.append(" Set AirPlaneMode Successful.");  
                        btnSetAirPlane.setEnabled(false);  
                        btnCancelAirPlane.setEnabled(true);  
                        break;  
                    }  
                    txtInfo.append("/n");  
                } else {  
                    Log.d("ANDROID_INFO", "bundle is null");  
                }  
            }  
        };  
        registerReceiver(receiver, intentFilter);  
    }  
    private void isAirplaneModeOn() {  
        // 返回值是1时表示处于飞行模式  
        int modeIdx = Settings.System.getInt(getContentResolver(), Settings.System.AIRPLANE_MODE_ON, 0);  
        boolean isEnabled = (modeIdx == 1);  
        txtInfo.append(formateToLogTime(System.currentTimeMillis()) + " AirPlaneMode " + isEnabled + "/n");  
    }  
    private void setAirplaneMode(boolean setAirPlane) {  
        Settings.System.putInt(getContentResolver(), Settings.System.AIRPLANE_MODE_ON, setAirPlane ? 1 : 0);  
        // 广播飞行模式信号的改变，让相应的程序可以处理。  
        // 不发送广播时，在非飞行模式下，Android 2.2.1上测试关闭了Wifi,不关闭正常的通话网络(如GMS/GPRS等)。  
        // 不发送广播时，在飞行模式下，Android 2.2.1上测试无法关闭飞行模式。  
        Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED);  
        // intent.putExtra("Sponsor", "Sodino");  
        // 2.3及以后，需设置此状态，否则会一直处于与运营商断连的情况  
        intent.putExtra("state", setAirplane);  
        sendBroadcast(intent);  
        Toast toast = Toast.makeText(this, "飞行模式启动与关闭需要一定的时间，请耐心等待", Toast.LENGTH_LONG);  
        toast.show();  
    }  
    /** 
     * 将长整型时间数字转为字符串。 
     *  
     * @return 返回格式为： 22:15:09的时间 
     */  
    public static String formateToLogTime(long time) {  
        Calendar calendar = Calendar.getInstance();  
        calendar.setTimeInMillis(time);  
        SimpleDateFormat simpleDF = new SimpleDateFormat("HH:mm:ss");  
        String logTime = simpleDF.format(calendar.getTime());  
        return logTime;  
    }  
}  

补充下，得加个权限：

[xhtml] view plain copy
<uses-permission android:name="android.permission.WRITE_SETTINGS"></uses-permission>  

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