Android 监听手机GPS打开状态
转载请标明出处：http://blog.csdn.net/zhaoyanjun6/article/details/70854942 本文出自【赵彦军的博客】 GPS_Presenter package com.yiba.core; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; import android.location.LocationManager; /** * Created by ${zhaoyanjun} on 2017/3/29. * GPS 开关监听 */ public class GPS_Presenter { private Context mContext ; private Receiver receiver ; private GPS_Interface mInterface ; private String GPS_ACTION = "android.location.PROVIDERS_CHANGED" ; public GPS_Presenter(Context context , GPS_Interface mInterface ){ this.mContext = context ; this.mInterface = mInterface ; observeWifiSwitch(); } private void observeWifiSwitch(){ IntentFilter filter = new IntentFilter(); filter.addAction( GPS_ACTION ); receiver = new Receiver() ; mContext.registerReceiver(receiver, filter); } /** * 释放资源 */ public void onDestroy(){ if ( receiver != null ){ mContext.unregisterReceiver( receiver ); } if (mContext!=null){ mContext = null; } } class Receiver extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { if (intent.getAction().matches( GPS_ACTION )) { if ( mInterface != null ){ mInterface.gpsSwitchState( gpsIsOpen( context )); } } } } /** * 判断GPS是否开启，GPS或者AGPS开启一个就认为是开启的 * @param context * @return true 表示开启 */ public boolean gpsIsOpen(final Context context) { LocationManager locationManager = (LocationManager) context.getApplicationContext().getSystemService(Context.LOCATION_SERVICE); // 通过GPS卫星定位，定位级别可以精确到街（通过24颗卫星定位，在室外和空旷的地方定位准确、速度快） boolean gps = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER); // 通过WLAN或移动网络(3G/2G)确定的位置（也称作AGPS，辅助GPS定位。主要用于在室内或遮盖物（建筑群或茂密的深林等）密集的地方定位） boolean network = locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER); if (gps || network) { return true; } return false; } } GPS_Interface 回调接口 package com.yiba.core; /** * Created by ${zhaoyanjun} on 2017/3/29. * gps 开关监听 */ public interface GPS_Interface { void gpsSwitchState( boolean gpsOpen ); } 在 Activity 中使用 package com.yiba.core; import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.widget.Toast; public class MainActivity extends AppCompatActivity implements GPS_Interface { private GPS_Presenter gps_presenter ; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); gps_presenter = new GPS_Presenter( this , this ) ; } @Override protected void onDestroy() { super.onDestroy(); //释放资源 if ( gps_presenter != null ){ gps_presenter.onDestroy(); } } @Override public void gpsSwitchState(boolean gpsOpen) { if ( gpsOpen ){ Toast.makeText(this, " 手机GPS 打开", Toast.LENGTH_SHORT).show(); }else { Toast.makeText(this, " 手机GPS 关闭", Toast.LENGTH_SHORT).show(); } } }
