android地图api，异常答案

【问题标题】：android maps api, exceptionandroid地图api，异常
【发布时间】：2015-03-26 10:35:22
【问题描述】：

我正在使用谷歌地图 v2。

我的代码在方法上被卡住了：

public void onConnected(Bundle bundle) {
    mLastLocation =     LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
if (mLastLocation != null) {
    mLatitudeText.setText(String.valueOf(mLastLocation.getLatitude()));
        mLongitudeText.setText(String.valueOf(mLastLocation.getLongitude()));
}
 } // end onConnected

日志猫：

03-25 10:30:41.120  25816-25816/? E/dalvikvmп№• Could not find class            'android.app.AppOpsManager', referenced from method             com.google.android.gms.common.GooglePlayServicesUtil.zza
03-25 10:30:41.460  25816-25816/? E/AndroidRuntimeп№• FATAL EXCEPTION: main
java.lang.NullPointerException
    at         com.example.robot.myapplication.MainActivity.onConnected(MainActivity.java:66)

我怎么想，这一行的例外：

mLastLocation =         LocationServices.FusedLocationApi.getLastLocation(**mGoogleApiClient**);

但我已经创建了这个对象（mGoogleApiClient）：

mGoogleApiClient = new GoogleApiClient.Builder(this)
        .addConnectionCallbacks(this)
        .addOnConnectionFailedListener(this)
        .addApi(LocationServices.API)
        .build();

我怎么了？

完整代码：

public class MainActivity extends Activity implements
GoogleApiClient.ConnectionCallbacks,                     GoogleApiClient.OnConnectionFailedListener  {
    private GoogleApiClient mGoogleApiClient;

private Location mLastLocation;
TextView mLatitudeText;
TextView mLongitudeText;
private final static int CONNECTION_FAILURE_RESOLUTION_REQUEST = 9000;
private static final int REQUEST_RESOLVE_ERROR = 1001;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
TextView mLatitudeText = (TextView) findViewById(R.id.mLatitudeText);
TextView mLongitudeText = (TextView) findViewById(R.id.mLongitudeText);
mGoogleApiClient = new GoogleApiClient.Builder(this)
        .addConnectionCallbacks(this)
        .addOnConnectionFailedListener(this)
        .addApi(LocationServices.API)
        .build();
}
@Override
protected void onResume() {
super.onResume();
mGoogleApiClient.connect();
}
@Override
protected void onPause() {
super.onPause();
 mGoogleApiClient.disconnect();
}
@Override
public void onConnected(Bundle bundle) {
mLastLocation =         LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
if (mLastLocation != null) {
    mLatitudeText.setText(String.valueOf(mLastLocation.getLatitude()));
        mLongitudeText.setText(String.valueOf(mLastLocation.getLongitude()));
}
 } // end onConnected
@Override
public void onConnectionSuspended(int i) {
}
@Override
public void onConnectionFailed(ConnectionResult result) {
if (result.hasResolution()) {
    try {
        result.startResolutionForResult(this, REQUEST_RESOLVE_ERROR);
    }
    catch (IntentSender.SendIntentException e) {
        e.printStackTrace();
    }
} //end if

} // end onConnectionFailed
}

【问题讨论】：

将此代码 mGoogleApiClient = new GoogleApiClient.Builder(this) .addConnectionCallbacks(this) .addOnConnectionFailedListener(this) .addApi(LocationServices.API) .build(); 移动到 onCreate() 方法上。
您的 android 清单文件中是否拥有所有正确的权限？
你使用哪个android api lvl？

标签： android nullpointerexception

【解决方案1】：

此错误与注册相关。

更改您的 api 版本并重新检查 google play 服务。

Google game services sign in issue (fails first attempt, successful second)

https://github.com/fbricker/openfl-admob/issues/2

【讨论】：