我正在使用SDK-23，每次运行应用程序时，我的SecurityException都会被抛出，调试器的错误会如下所示：
java.lang.SecurityException：“gps”位置提供程序需要 ACCESS_COARSE_LOCATION或ACCESS_FINE_LOCATION权限。
这似乎是一个简单的错误，但是，我的清单文件是完全正确的。就是这样，这里也是我的MapActivity代码：
package com.buahbatu.salesmonitoring;
public class MainActivity extends AppCompatActivity implements View.OnClickListener {
final static String TAG = "MainActivity";
SwitchCompat switchTracked;
MyService service;
private GoogleMap googleMap;
Context mContext;
private TextView textAddress;
/* Google Fused Location Service */
public static GoogleApiClient mGoogleApiClient;
public static LocationRequest mLocationRequest;
public static GoogleApiClient.ConnectionCallbacks connectionCallbacks;
public static GoogleApiClient.OnConnectionFailedListener onConnectionFailedListener;
public final static int REQUEST_LOCATION = 199;
public final static int REQUEST_CONNECTION = 11;
public final static int NOTIFICATION_ID = 2;
private static final String[] INITIAL_PERMS={
Manifest.permission.ACCESS_FINE_LOCATION,
Manifest.permission.READ_CONTACTS
};
private static final String[] LOCATION_PERMS={
Manifest.permission.ACCESS_FINE_LOCATION
};
boolean checkPermission() {
String location_fine = "android.permission.ACCESS_FINE_LOCATION";
String location_coarse = "android.permission.ACCESS_COARSE_LOCATION";
int permission_fine = mContext.checkCallingOrSelfPermission(location_fine);
int permission_coarse = mContext.checkCallingOrSelfPermission(location_coarse);
return permission_fine == PackageManager.PERMISSION_GRANTED && permission_coarse == PackageManager.PERMISSION_GRANTED;
}
public void startTracking(Activity activity) {
if (checkPermission()) {
Log.i(TAG, "startTracking");
LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, (com.google.android.gms.location.LocationListener) this);
} else {
int permissionCheck = ContextCompat.checkSelfPermission(activity,
Manifest.permission.ACCESS_FINE_LOCATION);
}
}
@Override
protected void onDestroy() {
super.onDestroy();
try {
service.setUpdateView(null);
initilizeMap();
} catch (Exception e) {
e.printStackTrace();
}
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
checkLoggedStatus();
setSupportActionBar((Toolbar) findViewById(R.id.top_toolbar));
((TextView) findViewById(R.id.username_text)).setText(AppConfig.getUserName(this));
switchTracked = (SwitchCompat) findViewById(R.id.tracked_switch);
switchTracked.setOnCheckedChangeListener(onCheckedChangeListener);
switchTracked.setChecked(AppConfig.getOnTracked(this));
findViewById(R.id.test_but).setOnClickListener(this);
textAddress = (TextView) findViewById(R.id.txtAddress);
}
CompoundButton.OnCheckedChangeListener onCheckedChangeListener = new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if (!isChecked) {
switchTracked.setText(R.string.untracked);
service.stopTracking();
AppConfig.saveOnTracked(MainActivity.this, false);
} else {
switchTracked.setText(R.string.tracked);
service = AcaciaX.createService(getApplicationContext(), MyService.class);
service.startTracking(MainActivity.this);
service.setUpdateView((TextView) findViewById(R.id.location_text));
AppConfig.saveOnTracked(MainActivity.this, true);
}
}
};
void checkLoggedStatus() {
if (!AppConfig.getLoginStatus(this)) {
moveToLogin();
}
}
void moveToLogin() {
Intent move = new Intent(this, LoginActivity.class);
startActivity(move);
finish();
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
Log.d(TAG, Integer.toString(resultCode));
//final LocationSettingsStates states = LocationSettingsStates.fromIntent(data);
switch (requestCode) {
case ServiceImpl.REQUEST_CONNECTION:
switch (resultCode) {
case Activity.RESULT_OK: {
switchTracked.setChecked(true);
break;
}
case Activity.RESULT_CANCELED: {
Toast.makeText(this, "Location not enabled, user cancelled.", Toast.LENGTH_LONG).show();
break;
}
default: {
break;
}
}
break;
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_logout) {
AppConfig.saveLoginStatus(this, false);
AppConfig.storeAccount(this, "", "");
switchTracked.setChecked(false);
moveToLogin();
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
public void onClick(View v) {
NetHelper.login(MainActivity.this, "Tester", "pasu", new PostWebTask.HttpConnectionEvent() {
@Override
public void preEvent() {
}
@Override
public void postEvent(String... result) {
}
});
}
private void initilizeMap() {
if (googleMap == null) {
googleMap = ((MapFragment) getFragmentManager().findFragmentById(
R.id.map)).getMap();
setUpMap();
// check if map is created successfully or not
if (googleMap == null) {
Toast.makeText(getApplicationContext(),
"Sorry! unable to create maps", Toast.LENGTH_SHORT)
.show();
}
if (googleMap != null) {
//setUpMap();
}
}
}
@Override
protected void onResume() {
super.onResume();
initilizeMap();
//googleMap.setMyLocationEnabled(true);
setUpMap();
}
public void setUpMap() {
if(checkPermission()) {
googleMap.setMyLocationEnabled(true);
LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
Criteria criteria = new Criteria();
String provider = locationManager.getBestProvider(criteria, true);
Location location = locationManager.getLastKnownLocation(provider);
CameraUpdate center = CameraUpdateFactory.newLatLng(new LatLng(location.getLatitude(), location.getLongitude()));
CameraUpdate zoom = CameraUpdateFactory.zoomTo(15);
googleMap.moveCamera(center);
googleMap.animateCamera(zoom);
Geocoder geocoder;
List<Address> addresses;
geocoder = new Geocoder(this, Locale.getDefault());
try {
addresses = geocoder.getFromLocation(location.getLatitude(), location.getLongitude(), 1);
if (addresses != null) {
String address = addresses.get(0).getAddressLine(0);
String city = addresses.get(0).getLocality();
String state = addresses.get(0).getAdminArea();
String country = addresses.get(0).getCountryName();
String postalCode = addresses.get(0).getPostalCode();
String knowName = addresses.get(0).getFeatureName();
String addressfull = address + " " + city + " " + state + " " + country + " " + postalCode + " " + knowName;
Intent intent = new Intent();
intent.putExtra("addressfull", addressfull);
textAddress.setText(addressfull);
}
} catch (IOException e) {
e.printStackTrace();
}
}else{
requestPermissions(INITIAL_PERMS, 2);
}
}
}
答案 0 :(得分：1)
如果您要定位Android M，则需要请求用户访问设备GPS。这是一个不太干净的代码，但可能会帮助你一点点。更好的方法是创建自己的权限管理器类来处理请求和alertDialog活动。
下面发生的事情是
1）您正在检查是否授予了权限。 2）如果没有，您正在检查以前是否已拒绝权限，在这种情况下，您正在显示理由，向用户解释您需要权限的原因。 3）使用ActivityCompat显示请求权限弹出窗口。 4）如果用户拒绝，只要您需要访问GPS但是注意到未授予权限，则显示带有视图按钮的快餐栏以将用户带到应用信息屏幕。
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED ) {
if (ActivityCompat.shouldShowRequestPermissionRationale(this,
Manifest.permission.ACCESS_COARSE_LOCATION)) {
showRationale();
} else {
// do request the permission
ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, 8);
}
}
@Override
public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED ){
//Start your code
} else {
//Show snackbar
}
}
}
private void showRationale(){
String strDeleteMessage = getResources().getString(R.string.rationale_message11) ;
final View dialogView = LayoutInflater.from(this.getActivity()).inflate(R.layout.dialog_fragment, null);
final AlertDialog storageRationaleAlert = new AlertDialog.Builder(this.getActivity()).create();
storageRationaleAlert.setView(dialogView, 0, 0, 0, 0);
storageRationaleAlert.setCanceledOnTouchOutside(false);
TextView mDialogTitle = (TextView) dialogView.findViewById(R.id.dialog_title);
TextView mDialogDetails = (TextView) dialogView.findViewById(R.id.dialog_details);
mDialogDetails.setVisibility(View.VISIBLE);
Button mCancelButton = (Button) dialogView.findViewById(R.id.cancel_btn);
Button mOkButton = (Button) dialogView.findViewById(R.id.ok_btn);
mOkButton.setText(getString(R.string.dialog_continue));
mDialogDetails.setText(Html.fromHtml(strDeleteMessage));
final Activity activity = this.getActivity();
mOkButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
storageRationaleAlert.dismiss();
//Ask for GPS permission
}
});
mCancelButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
storageRationaleAlert.dismiss();
//Show permission snackbar
}
});
storageRationaleAlert.show();
}