Android 4.4中的自动GPS启用和禁用类似于谷歌地图？
每当我尝试打开并自动关闭GPS时，KITKAT会触发java.lang.SecurityException: Permission Denial: not allowed to send broadcast android.location.GPS_ENABLED_CHANGE exception...
来自堆栈溢出的以下答案，Android device GPS on/off programatically
我知道了，
* For The security purpose Google developer has block above both methods which were previously working fine.
* Hence conclusion is that You can not programmatically start GPS On or Off.
This is the code part where exception is thrown,
/** Method for stop GPS **/
public synchronized void onPauseGPSListener() {
mLogger.log("Remove GPS Location Update");
//this Line throws the exception--------------------------------
Intent intent = new Intent("android.location.GPS_ENABLED_CHANGE");
intent.putExtra("enabled", false);
sendBroadcast(intent);
if (locationclient != null && mlocListener != null) {
locationclient.removeLocationUpdates(mlocListener);
locationclient.disconnect();
locationclient=null;
mlocListener = null;
}
StoptimerForGPSRemoveListener();
if (mcalMgr.mServerReset == 0) {
timerForGPSStartListener();
}
}
/** Method for Start GPS **/
public synchronized void onStartGPSListener() {
mLogger.log("Start GPS Location Update");
if (mlocListener == null) {
mlocListener = new MyLocationListener();
}
Intent intent = new Intent("android.location.GPS_ENABLED_CHANGE");
intent.putExtra("enabled", true);
sendBroadcast(intent);
StoptimerForGPSStartListener();
if (mcalMgr.mServerReset == 0) {
initGPSModule(mnFrequency, mfChangeDistance);
} else {
mlocListener = null;
Intent mintent = new Intent("android.location.GPS_ENABLED_CHANGE");
mintent.putExtra("enabled", false);
sendBroadcast(mintent);
}
}
这是Logcat堆栈跟踪，
11-20 11:19:26.317: E/AndroidRuntime(7773): Process: com.teclever.tracking, PID: 7773
11-20 11:19:26.317: E/AndroidRuntime(7773): java.lang.SecurityException: Permission Denial: not allowed to send broadcast android.location.GPS_ENABLED_CHANGE from pid=7773, uid=10160
11-20 11:19:26.317: E/AndroidRuntime(7773): at android.os.Parcel.readException(Parcel.java:1465)
11-20 11:19:26.317: E/AndroidRuntime(7773): at android.os.Parcel.readException(Parcel.java:1419)
11-20 11:19:26.317: E/AndroidRuntime(7773): at android.app.ActivityManagerProxy.broadcastIntent(ActivityManagerNative.java:2451)
11-20 11:19:26.317: E/AndroidRuntime(7773): at android.app.ContextImpl.sendBroadcast(ContextImpl.java:1264)
11-20 11:19:26.317: E/AndroidRuntime(7773): at android.content.ContextWrapper.sendBroadcast(ContextWrapper.java:365)
11-20 11:19:26.317: E/AndroidRuntime(7773): at com.teclever.tracking.LocationGetter.onPauseGPSListener(LocationGetter.java:601)
11-20 11:19:26.317: E/AndroidRuntime(7773): at com.teclever.tracking.LocationGetter$1.run(LocationGetter.java:706)
11-20 11:19:26.317: E/AndroidRuntime(7773): at android.os.Handler.handleCallback(Handler.java:808)
11-20 11:19:26.317: E/AndroidRuntime(7773): at android.os.Handler.dispatchMessage(Handler.java:103)
11-20 11:19:26.317: E/AndroidRuntime(7773): at android.os.Looper.loop(Looper.java:193)
11-20 11:19:26.317: E/AndroidRuntime(7773): at android.app.ActivityThread.main(ActivityThread.java:5312)
11-20 11:19:26.317: E/AndroidRuntime(7773): at java.lang.reflect.Method.invokeNative(Native Method)
11-20 11:19:26.317: E/AndroidRuntime(7773): at java.lang.reflect.Method.invoke(Method.java:515)
11-20 11:19:26.317: E/AndroidRuntime(7773): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:824)
11-20 11:19:26.317: E/AndroidRuntime(7773): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:640)
11-20 11:19:26.317: E/AndroidRuntime(7773): at dalvik.system.NativeStart.main(Native Method)
11-20 11:19:27.026: E/(706): Could not open '/data/data/hotplug/cmd'
11-20 11:19:27.027: E/(706): error : 2, No such file or directory
11-20 11:19:27.104: E/(1015): appName=com.jrdcom.launcher, acAppName=/system/bin/surfaceflinger
11-20 11:19:27.104: E/(1015): 0
11-20 11:19:27.179: E/(706): Could not open '/data/data/hotplug/cmd'
11-20 11:19:27.180: E/(706): error : 2, No such file or directory
11-20 11:19:27.967: E/TelephonyProvider(833): iTelephony is null!!!
但我的问题是，当我打开Google maps时，它会变成GPS on and off without any prompt from user ,,,它只是在我们首次登录我们的应用程序时要求，从那时起它会自动打开并且关闭GPS，我怎么能实现谷歌地图中实现的相同程序，更好地为我提供代码示例谢谢
1 个答案:
答案 0 :(得分：0)
它的工作方式与谷歌地图类似吗？
在build.gradle文件中添加依赖
编译'com.google.android.gms：play-services：8.3.0'
this or that
编译'com.google.android.gms：play-services-location：10.0.1'
package com.keshav.volleypostexample;
import android.content.Context;
import android.content.IntentSender;
import android.location.LocationManager;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.common.api.PendingResult;
import com.google.android.gms.common.api.ResultCallback;
import com.google.android.gms.common.api.Status;
import com.google.android.gms.location.LocationRequest;
import com.google.android.gms.location.LocationServices;
import com.google.android.gms.location.LocationSettingsRequest;
import com.google.android.gms.location.LocationSettingsResult;
import com.google.android.gms.location.LocationSettingsStatusCodes;
import java.util.List;
public class LocationOnOff_Similar_To_Google_Maps extends AppCompatActivity {
protected static final String TAG = "LocationOnOff";
private GoogleApiClient googleApiClient;
final static int REQUEST_LOCATION = 199;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.setFinishOnTouchOutside(true);
// Todo Location Already on ... start
final LocationManager manager = (LocationManager) LocationOnOff_Similar_To_Google_Maps.this.getSystemService(Context.LOCATION_SERVICE);
if (manager.isProviderEnabled(LocationManager.GPS_PROVIDER) && hasGPSDevice(LocationOnOff_Similar_To_Google_Maps.this)) {
Toast.makeText(LocationOnOff_Similar_To_Google_Maps.this,"Gps already enabled",Toast.LENGTH_SHORT).show();
finish();
}
// Todo Location Already on ... end
if(!hasGPSDevice(LocationOnOff_Similar_To_Google_Maps.this)){
Toast.makeText(LocationOnOff_Similar_To_Google_Maps.this,"Gps not Supported",Toast.LENGTH_SHORT).show();
}
if (!manager.isProviderEnabled(LocationManager.GPS_PROVIDER) && hasGPSDevice(LocationOnOff_Similar_To_Google_Maps.this)) {
Log.e("keshav","Gps already enabled");
Toast.makeText(LocationOnOff_Similar_To_Google_Maps.this,"Gps not enabled",Toast.LENGTH_SHORT).show();
enableLoc();
}else{
Log.e("keshav","Gps already enabled");
Toast.makeText(LocationOnOff_Similar_To_Google_Maps.this,"Gps already enabled",Toast.LENGTH_SHORT).show();
}
}
private boolean hasGPSDevice(Context context) {
final LocationManager mgr = (LocationManager) context
.getSystemService(Context.LOCATION_SERVICE);
if (mgr == null)
return false;
final List<String> providers = mgr.getAllProviders();
if (providers == null)
return false;
return providers.contains(LocationManager.GPS_PROVIDER);
}
private void enableLoc() {
if (googleApiClient == null) {
googleApiClient = new GoogleApiClient.Builder(LocationOnOff_Similar_To_Google_Maps.this)
.addApi(LocationServices.API)
.addConnectionCallbacks(new GoogleApiClient.ConnectionCallbacks() {
@Override
public void onConnected(Bundle bundle) {
}
@Override
public void onConnectionSuspended(int i) {
googleApiClient.connect();
}
})
.addOnConnectionFailedListener(new GoogleApiClient.OnConnectionFailedListener() {
@Override
public void onConnectionFailed(ConnectionResult connectionResult) {
Log.d("Location error","Location error " + connectionResult.getErrorCode());
}
}).build();
googleApiClient.connect();
LocationRequest locationRequest = LocationRequest.create();
locationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
locationRequest.setInterval(30 * 1000);
locationRequest.setFastestInterval(5 * 1000);
LocationSettingsRequest.Builder builder = new LocationSettingsRequest.Builder()
.addLocationRequest(locationRequest);
builder.setAlwaysShow(true);
PendingResult<LocationSettingsResult> result =
LocationServices.SettingsApi.checkLocationSettings(googleApiClient, builder.build());
result.setResultCallback(new ResultCallback<LocationSettingsResult>() {
@Override
public void onResult(LocationSettingsResult result) {
final Status status = result.getStatus();
switch (status.getStatusCode()) {
case LocationSettingsStatusCodes.RESOLUTION_REQUIRED:
try {
// Show the dialog by calling startResolutionForResult(),
// and check the result in onActivityResult().
status.startResolutionForResult(LocationOnOff_Similar_To_Google_Maps.this, REQUEST_LOCATION);
finish();
} catch (IntentSender.SendIntentException e) {
// Ignore the error.
}
break;
}
}
});
}
}
}
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