Android Google MAP API不起作用

Question

I'm trying to show a map in the application, but I'm failing to do so.

My emulator runs the Google API 19 and I checked the google play services as referenced library.

On API Console I switched the Google map API on, but it's still not working. Any help is appreciated!

MainActivity.java:

   public class MainActivity extends Activity {
   @Override
    protected void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     setContentView(R.layout.activity_main);
    }
   }

Manifest file

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.haber"
    android:versionCode="1"
    android:versionName="1.0" >
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<!-- The following two permissions are not required to use
     Google Maps Android API v2, but are recommended. -->
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-feature
        android:glEsVersion="0x00020000"
        android:required="true"/>
    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="21" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >

        <activity
            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>

        <meta-data
    android:name="com.google.android.gms.version"
    android:value="@integer/google_play_services_version" />
        <meta-data
    android:name="com.google.android.maps.v2.AIzaSyB0-fA5Q1of75JqI-----------"
    android:value="AIzaSyB0-fA5Q1of75JqIeb0cRAaI---------"/>
    </application>

</manifest>

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
          android:id="@+id/map"
          android:layout_width="match_parent"
          android:layout_height="match_parent"
          android:name="com.google.android.gms.maps.SupportMapFragment"/>

LogCat

07-16 09:11:10.206: D/dalvikvm(1461): GC_FOR_ALLOC freed 127K, 11% free 3546K/3960K, paused 209ms, total 220ms
07-16 09:11:10.366: I/u(1461): Making Creator dynamically
07-16 09:11:10.486: I/Google Maps Android API(1461): Google Play services client version: 5077000
07-16 09:11:10.496: I/dalvikvm(1461): Could not find method guj.a, referenced from method gqi.a
07-16 09:11:10.496: W/dalvikvm(1461): VFY: unable to resolve static method 24932: Lguj;.a (Landroid/content/Context;)Lgri;
07-16 09:11:10.496: D/dalvikvm(1461): VFY: replacing opcode 0x71 at 0x0003
07-16 09:11:10.506: E/dalvikvm(1461): Could not find class 'gpr', referenced from method gps.a
07-16 09:11:10.506: W/dalvikvm(1461): VFY: unable to resolve new-instance 4089 (Lgpr;) in Lgps;
07-16 09:11:10.516: D/dalvikvm(1461): VFY: replacing opcode 0x22 at 0x0000
07-16 09:11:10.516: E/dalvikvm(1461): Could not find class 'gpr', referenced from method gps.a
07-16 09:11:10.516: W/dalvikvm(1461): VFY: unable to resolve new-instance 4089 (Lgpr;) in Lgps;
07-16 09:11:10.516: D/dalvikvm(1461): VFY: replacing opcode 0x22 at 0x0000
07-16 09:11:10.526: E/dalvikvm(1461): Could not find class 'gpr', referenced from method gps.a
07-16 09:11:10.526: W/dalvikvm(1461): VFY: unable to resolve new-instance 4089 (Lgpr;) in Lgps;
07-16 09:11:10.526: D/dalvikvm(1461): VFY: replacing opcode 0x22 at 0x0000
07-16 09:11:10.526: D/dalvikvm(1461): DexOpt: unable to opt direct call 0x5e9f at 0x0a in Lgps;.a
07-16 09:11:10.526: D/dalvikvm(1461): DexOpt: unable to opt direct call 0x5e9f at 0x0c in Lgps;.a
07-16 09:11:10.536: D/dalvikvm(1461): DexOpt: unable to opt direct call 0x5e9f at 0x0a in Lgps;.a
07-16 09:11:10.546: I/Google Maps Android API(1461): Google Play services package version: 5077030
07-16 09:11:10.556: W/dalvikvm(1461): VFY: unable to resolve static field 20868 (t) in Lyp;
07-16 09:11:10.556: D/dalvikvm(1461): VFY: replacing opcode 0x62 at 0x000e
07-16 09:11:10.566: W/dalvikvm(1461): VFY: unable to resolve static field 20868 (t) in Lyp;
07-16 09:11:10.566: D/dalvikvm(1461): VFY: replacing opcode 0x62 at 0x000d
07-16 09:11:10.696: D/AndroidRuntime(1461): Shutting down VM
07-16 09:11:10.696: W/dalvikvm(1461): threadid=1: thread exiting with uncaught exception (group=0xb1af5ba8)
07-16 09:11:10.736: E/AndroidRuntime(1461): FATAL EXCEPTION: main
07-16 09:11:10.736: E/AndroidRuntime(1461): Process: com.example.haber, PID: 1461
07-16 09:11:10.736: E/AndroidRuntime(1461): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.haber/com.example.haber.MainActivity}: android.view.InflateException: Binary XML file line #2: Error inflating class fragment
07-16 09:11:10.736: E/AndroidRuntime(1461):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2195)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at android.app.ActivityThread.access$800(ActivityThread.java:135)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at android.os.Handler.dispatchMessage(Handler.java:102)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at android.os.Looper.loop(Looper.java:136)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at android.app.ActivityThread.main(ActivityThread.java:5017)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at java.lang.reflect.Method.invokeNative(Native Method)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at java.lang.reflect.Method.invoke(Method.java:515)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at dalvik.system.NativeStart.main(Native Method)
07-16 09:11:10.736: E/AndroidRuntime(1461): Caused by: android.view.InflateException: Binary XML file line #2: Error inflating class fragment
07-16 09:11:10.736: E/AndroidRuntime(1461):     at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:713)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at android.view.LayoutInflater.inflate(LayoutInflater.java:469)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:290)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at android.app.Activity.setContentView(Activity.java:1929)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at com.example.haber.MainActivity.onCreate(MainActivity.java:14)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at android.app.Activity.performCreate(Activity.java:5231)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159)
07-16 09:11:10.736: E/AndroidRuntime(1461):     ... 11 more
07-16 09:11:10.736: E/AndroidRuntime(1461): Caused by: java.lang.RuntimeException: API key not found.  Check that <meta-data android:name="com.google.android.maps.v2.API_KEY" android:value="your API key"/> is in the <application> element of AndroidManifest.xml
07-16 09:11:10.736: E/AndroidRuntime(1461):     at ozd.a(Unknown Source)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at ozd.a(Unknown Source)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at ozd.a(Unknown Source)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at ozd.a(Unknown Source)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at oyf.a(Unknown Source)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at ouk.a(Unknown Source)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at ouj.a(Unknown Source)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at grv.onTransact(SourceFile:107)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at android.os.Binder.transact(Binder.java:361)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at com.google.android.gms.maps.internal.IMapFragmentDelegate$a$a.onCreateView(Unknown Source)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at com.google.android.gms.maps.SupportMapFragment$a.onCreateView(Unknown Source)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at com.google.android.gms.dynamic.a$4.b(Unknown Source)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at com.google.android.gms.dynamic.a.a(Unknown Source)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at com.google.android.gms.dynamic.a.onCreateView(Unknown Source)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at com.google.android.gms.maps.SupportMapFragment.onCreateView(Unknown Source)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at android.support.v4.app.Fragment.performCreateView(Fragment.java:1504)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:915)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1099)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at android.support.v4.app.FragmentManagerImpl.addFragment(FragmentManager.java:1201)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:292)
07-16 09:11:10.736: E/AndroidRuntime(1461):     at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:685)
07-16 09:11:10.736: E/AndroidRuntime(1461):     ... 20 more

Answer 1

Your meta-data manifest tag must be like this:

  <!-- Google Maps API Key -->
    <meta-data
        android:name="com.google.android.maps.v2.API_KEY"
        android:value="AIzaSyCIafD5------------" />
    <meta-data

Not the APIKEY value in name and value, as you have.

Answer 2

in your main activity try checking for google play services in onResume()

@Override
    public void onResume() {
        super.onResume();


        int status = GooglePlayServicesUtil.isGooglePlayServicesAvailable(this);
        Log.e("playServicesCheck", "status:" + status);
        try {
            if (status != ConnectionResult.SUCCESS) {
                GooglePlayServicesUtil.getErrorDialog(status, this, 1).show();
            }
        } catch (Exception e) {
            Log.e("PLAY SERVE", "error:" + e);
        }

    }

Answer 3

Looks like your issue has been solved, but I've noticed your manifest is also missing this:

<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />

I was having a similar issue that was fixed by adding this.

I was tearing my hair out with this, I'm working on an application that was accessing maps just fine, then stopped out of the blue. I couldn't see anything actually pointing to a missing permission; I only picked up on it when I compared the manifest with another application that used maps api v2.

My log had a couple of red herrings (that directed me here), I'm sharing them below in case someone with the same issue stumbles across them:

Could not find class 'gpr', referenced from method gps.a

Link of class Lcom/google/android/gms/location/internal/ParcelableGeofence;' failed

I'm still confused as to why it previously worked without it (Google says you need the permission for maps to work). Perhaps I'd once put it there and accidentally deleted the line, but either way putting it in is what fixed it.

Source: https://developers.google.com/maps/documentation/business/mobile/android/config