android 在程序中开启GPS功能

1. LocationManager locationManager=(LocationManager) getSystemService(Context.LOCATION_SERVICE);       2.         3.        boolean isEnabled= locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);  4.        if(!isEnabled){  5.            //这段代码可以实现GPS开关状态的切换   6.                Intent GPSIntent = new Intent();  7.                GPSIntent.setClassName("com.android.settings",  8.                        "com.android.settings.widget.SettingsAppWidgetProvider");  9.                GPSIntent.addCategory("android.intent.category.ALTERNATIVE");  10.                GPSIntent.setData(Uri.parse("custom:3"));  11.                try {  12.                    PendingIntent.getBroadcast(MainActivity.this, 0, GPSIntent, 0).send();  13.                } catch (CanceledException e) {  14.                    e.printStackTrace();  15.                }      16.//              Settings.Secure.setLocationProviderEnabled(getContentResolver(), LocationManager.GPS_PROVIDER, true);  注释掉的代码,表面上看可以简单的实现开启GPS功能,但是运行后发现后没有权限,即使加了权限依旧提示permission denied PS：权限都有已经有说明的Android 在程序中开启网络功能/**    * 移动网络开关    */       public Object invokeBooleanArgMethod(String methodName,               boolean value) throws Exception {       mConnectivityManager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);           Class ownerClass = mConnectivityManager.getClass();           Class[]  argsClass = new Class[1];               argsClass[0] = boolean.class;           Method method = ownerClass.getMethod(methodName,argsClass);           return method.invoke(mConnectivityManager, value);       }    //判断移动网络    public boolean isNetworkConnected(Context context) {            if (context != null) {                ConnectivityManager mConnectivityManager = (ConnectivityManager) context                        .getSystemService(Context.CONNECTIVITY_SERVICE);                NetworkInfo mNetworkInfo = mConnectivityManager.getActiveNetworkInfo();                if (mNetworkInfo != null) {                   return mNetworkInfo.isAvailable();                }           }           return false;    }
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