我正在开发一款可让用户轻松报告坑洼和其他路边问题的应用。我的具体问题在于我所包含的地图;在报告活动中，用户可以使用谷歌地图和一些标记来查明问题所在。要做到这一点，我基本上是从谷歌地图api逐字复制代码，我的问题是权限utils对象不是从谷歌播放服务继承。我已经把这段代码放了一段时间（出于挫折），所以我不记得其他问题是什么，但我记得得到权限的代码工具不给我一个错误是一种婊子。无论如何所以请帮助; _;。我为我的代码划分方式道歉，这对我来说在视觉上更容易，第一个块是消息活动，第二个块是我的清单。如果我发布任何其他内容，请告诉我。
package com.example.fixmytown;
import java.util.List;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.location.LocationServices;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.GoogleMap.OnMyLocationButtonClickListener;
import com.google.android.gms.maps.MapFragment;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;
import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.content.ContextCompat;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;
import com.google.android.gms.maps.SupportMapFragment;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;
public class Message extends FragmentActivity implements OnMyLocationButtonClickListener,
OnMapReadyCallback,
ActivityCompat.OnRequestPermissionsResultCallback {
private static final int LOCATION_PERMISSION_REQUEST_CODE = 1;
private boolean mPermissionDenied = false;
private GoogleMap mMap;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.maps_frag);
MapFragment mapFragment = (MapFragment) getFragmentManager()
.findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
//----------------------------[Don't Mess with the above]------------------------------------------------------------
android.app.ActionBar actionBar = getActionBar();
//-------------------------------------------------------------------------------------------------------------------
//you were trying to figure out why the action bar isnt changing title. beinga bitch
String subject = " ";
if (Black.activityType == 1){
subject = "Pothole";
}
else if (Black.activityType == 2){
subject = "Roadkill";
}
else if (Black.activityType == 3){
subject = "Pollution";
}
else if(Black.activityType == 4){
// getActionBar().setTitle("Email Public Servant ");
}
}
//-------------------------------------------------------------------------------------------------------------------
@Override
public void onMapReady(GoogleMap map) {
mMap = map;
mMap.setOnMyLocationButtonClickListener(this);
enableMyLocation();
}
private void enableMyLocation() {
if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION)
!= PackageManager.PERMISSION_GRANTED) {
// Permission to access the location is missing.
PermissionUtils.requestPermission(this, LOCATION_PERMISSION_REQUEST_CODE,
Manifest.permission.ACCESS_FINE_LOCATION, true);
} else if (mMap != null) {
// Access to the location has been granted to the app.
mMap.setMyLocationEnabled(true);
}
}
//-------------------------------------------------------------------------------------------------------------------
public void sendMessage(View view) {
EditText text = (EditText)findViewById(R.id.MessageText);
String Description = text.getText().toString();
String subject = "";
if (Black.activityType == 1){
subject = "Pothole";
}
else if (Black.activityType == 2){
subject = "Roadkill";
}
else if (Black.activityType == 3){
subject = "Pollution";
}
else if(Black.activityType == 4){
// getActionBar().setTitle("Email Public Servant ");
}
//-------------------------------------------------------------------------------------------------------------------
//email ability
Intent i = new Intent(Intent.ACTION_SEND);
i.setType("message/rfc822");
i.putExtra(Intent.EXTRA_EMAIL , new String[]{"mckippy@gmail.com"});
i.putExtra(Intent.EXTRA_SUBJECT, subject);
i.putExtra(Intent.EXTRA_TEXT , Description);
try {
startActivity(Intent.createChooser(i, "Send mail..."));
} catch (android.content.ActivityNotFoundException ex) {
Toast.makeText(Message.this, "There are no email clients installed.", Toast.LENGTH_SHORT).show();
}
}
//-------------------------------------------------------------------------------------------------------------------
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.message, 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();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
public boolean onMyLocationButtonClick() {
// TODO Auto-generated method stub
return false;
}
}
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.fixmytown"
android:versionCode="1"
android:versionName="1.0" >
<uses-permission android:name="com.google.android.providers.gsf.permisson.READ_GSERVICES"/>
<uses-permission
android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission
android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-sdk
android:minSdkVersion="11"
android:targetSdkVersion="21" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:screenOrientation="portrait"
android:name=".MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:screenOrientation="portrait"
android:name=".Black"
android:label="@string/title_activity_black" >
</activity>
<activity
android:screenOrientation="portrait"
android:name=".Green"
android:configChanges="orientation|keyboardHidden|screenSize"
android:label="@string/title_activity_green"
android:theme="@style/FullscreenTheme" >
</activity>
<activity
android:screenOrientation="portrait"
android:name=".Message"
android:label="@string/title_activity_message" >
</activity>
<meta-data
android:name="com.google.android.gms.version"
android:value="@integer/google_play_services_version" />
<meta-data
android:name="com.google.android.geo.API_KEY"
android:value="AIzaSyA0e26vc4-YGqmvOQSA6lQfnZyt3dmmbek"/>
</application>
</manifest>