【发布时间】：2021-07-31 12:47:15
【问题描述】：
我正在使用 Fused Location API，代码中没有错误，但是当我运行应用程序时，它只请求位置，但不请求任何 SMS 权限来发送警报消息（此应用程序发送位置 SMS（纬度和经度）到数据库中的联系人。此外，当我在较低操作系统版本的手机中安装相同的应用程序时，SMS 实际上已发送。在 OS 11 中不起作用。 我已经添加了所有依赖项，我的 SDK 版本是 30。
Java
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;
import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.telephony.SmsManager;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
import java.util.ArrayList;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import android.Manifest;
import android.content.DialogInterface;
import android.content.pm.PackageManager;
import android.location.Location;
import android.os.Build;
import android.os.Bundle;
import android.telephony.SmsManager;
import android.widget.Button;
import android.widget.Toast;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GoogleApiAvailability;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.location.LocationListener;
import com.google.android.gms.location.LocationRequest;
import com.google.android.gms.location.LocationServices;
import java.util.ArrayList;
public class emergency extends AppCompatActivity implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener, LocationListener {
Button emergency;
DatabaseHelper db;
private static final int MY_PERMISSIONS_REQUEST_SEND_SMS = 0;
private Location location;
private GoogleApiClient googleApiClient;
private static final int PLAY_SERVICES_RESOLUTION_REQUEST = 9000;
private LocationRequest locationRequest;
private static final long UPDATE_INTERVAL = 5000, FASTEST_INTERVAL = 5000; // = 5 seconds
// lists for permissions
private ArrayList<String> permissionsToRequest;
private ArrayList<String> permissionsRejected = new ArrayList<>();
private ArrayList<String> permissions = new ArrayList<>();
// integer for permissions results request
private static final int ALL_PERMISSIONS_RESULT = 1011;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_emergency);
emergency = findViewById(R.id.but_emer);
db = new DatabaseHelper(this);
emergency.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
permissions.add(Manifest.permission.ACCESS_FINE_LOCATION);
permissions.add(Manifest.permission.ACCESS_COARSE_LOCATION);
permissionsToRequest = permissionsToRequest(permissions);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
if (permissionsToRequest.size() > 0) {
requestPermissions(permissionsToRequest.toArray(
new String[permissionsToRequest.size()]), ALL_PERMISSIONS_RESULT);
}
}
googleApiClient = new GoogleApiClient.Builder(emergency.this).
addApi(LocationServices.API).
addConnectionCallbacks(emergency.this).
addOnConnectionFailedListener(emergency.this).build();
}
});
}
private ArrayList<String> permissionsToRequest(ArrayList<String> wantedPermissions) {
ArrayList<String> result = new ArrayList<>();
for (String perm : wantedPermissions) {
if (!hasPermission(perm)) {
result.add(perm);
}
}
return result;
}
private boolean hasPermission(String permission) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
return checkSelfPermission(permission) == PackageManager.PERMISSION_GRANTED;
}
return true;
}
@Override
protected void onStart() {
super.onStart();
if (googleApiClient != null) {
googleApiClient.connect();
}
}
@Override
protected void onResume() {
super.onResume();
if (!checkPlayServices()) {
Toast.makeText(this, "You need to install Google Play Services to use the App properly", Toast.LENGTH_SHORT).show();
}
}
@Override
protected void onPause() {
super.onPause();
if (googleApiClient != null && googleApiClient.isConnected()) {
LocationServices.FusedLocationApi.removeLocationUpdates(googleApiClient, this);
googleApiClient.disconnect();
}
}
private boolean checkPlayServices() {
GoogleApiAvailability apiAvailability = GoogleApiAvailability.getInstance();
int resultCode = apiAvailability.isGooglePlayServicesAvailable(this);
if (resultCode != ConnectionResult.SUCCESS) {
if (apiAvailability.isUserResolvableError(resultCode)) {
apiAvailability.getErrorDialog(this, resultCode, PLAY_SERVICES_RESOLUTION_REQUEST);
} else {
finish();
}
return false;
}
return true;
}
@Override
public void onConnected(@Nullable Bundle bundle) {
if (ActivityCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED
&& ActivityCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
return; }
// Permissions ok, we get last location
location = LocationServices.FusedLocationApi.getLastLocation(googleApiClient);
if (location != null) {
// locationTv.setText("Latitude : " + location.getLatitude() + "\nLongitude : " + location.getLongitude());
checkForSmsPermission();
}
startLocationUpdates();
}
private void checkForSmsPermission() {
if (ActivityCompat.checkSelfPermission(emergency.this, Manifest.permission.SEND_SMS) != PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(emergency.this, new String[]{Manifest.permission.SEND_SMS},
MY_PERMISSIONS_REQUEST_SEND_SMS);
} else {
enableSmsButton();
}
}
private void enableSmsButton() {
try {
Cursor cursor = db.getAllContacts();
ArrayList list = new ArrayList();
while (cursor.moveToNext()) {
list.add(cursor.getString(2));
}
for (int i = 0; i < list.size(); i++) {
String num = list.get(i).toString();
String msg = "I AM IN EMERGENCY, PLEASE HELP!"+ "\nMy Location: " + "\nLatitude : " + location.getLatitude() + "\nLongitude : " + location.getLongitude();
SmsManager.getDefault().sendTextMessage(num, null, msg, null, null);
Toast.makeText(getApplicationContext(), "SMS Sent Successfully", Toast.LENGTH_SHORT).show();
} }catch (Exception e) {
Toast.makeText(getApplicationContext(), "SMS Failed to Send,Please try again", Toast.LENGTH_SHORT).show();
}
}
private void startLocationUpdates() {
locationRequest = new LocationRequest();
locationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
locationRequest.setInterval(UPDATE_INTERVAL);
locationRequest.setFastestInterval(FASTEST_INTERVAL);
if (ActivityCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED
&& ActivityCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
Toast.makeText(this, "You need to enable permissions to display location !", Toast.LENGTH_SHORT).show();
}
LocationServices.FusedLocationApi.requestLocationUpdates(googleApiClient, locationRequest, this);
}
@Override
public void onConnectionSuspended(int i) {
}
@Override
public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {
}
@Override
public void onLocationChanged(Location location) {
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
switch (requestCode) {
case ALL_PERMISSIONS_RESULT:
for (String perm : permissionsToRequest) {
if (!hasPermission(perm)) {
permissionsRejected.add(perm);
}
}
if (permissionsRejected.size() > 0) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
if (shouldShowRequestPermissionRationale(permissionsRejected.get(0))) {
new AlertDialog.Builder(emergency.this).
setMessage("These permissions are mandatory to get your location. You need to allow them.").
setPositiveButton("OK", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
requestPermissions(permissionsRejected.
toArray(new String[permissionsRejected.size()]), ALL_PERMISSIONS_RESULT);
}
}
}).setNegativeButton("Cancel", null).create().show();
return;
}
}
} else {
if (googleApiClient != null) {
googleApiClient.connect();
}
}
break;
case MY_PERMISSIONS_REQUEST_SEND_SMS: {
if (permissions[0].equalsIgnoreCase(Manifest.permission.SEND_SMS) && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
enableSmsButton();
} else {
Toast.makeText(emergency.this, "Sorry", Toast.LENGTH_SHORT).show();
}
}
}
}
}
【问题讨论】：
标签： java android smsmanager fusedlocationproviderapi