融合的位置崩潰

Question

嗨，我一直在嘗試融合的位置工作，但總是得到應用程序崩潰任何人都可以告訴我wgy嗎？坦克你

收到此錯誤：

12-11 02:08:54.525: E/AndroidRuntime(5972): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.teste/com.example.teste.MainActivity}: java.lang.IllegalStateException: Not connected. Call connect() and wait for onConnected() to be called.

清單

<?xml version="1.0" encoding="utf-8"?> 
<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
package="com.example.teste" 
android:versionCode="1" 
android:versionName="1.0" > 

<uses-sdk 
    android:minSdkVersion="8" 
    android:targetSdkVersion="18" /> 
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/> 
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/> 
<uses-permission android:name="android.permission.INTERNET"/> 

<application 
    android:allowBackup="true" 
    android:icon="@drawable/ic_launcher" 
    android:label="@string/app_name" 
    android:theme="@style/AppTheme" > 
    <activity 
     android:name="com.example.teste.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" /> 
</application> 

</manifest> 

主營：

package com.example.teste; 
import com.google.android.gms.common.ConnectionResult; 
import com.google.android.gms.common.GooglePlayServicesClient; 
import com.google.android.gms.common.GooglePlayServicesUtil; 
import com.google.android.gms.location.LocationClient; 
import android.location.Location; 
import android.os.Bundle; 
import android.app.Activity; 
import android.view.Menu; 
import android.widget.TextView; 
import android.widget.Toast; 

public class MainActivity extends Activity implements 
GooglePlayServicesClient.ConnectionCallbacks, 
GooglePlayServicesClient.OnConnectionFailedListener{ 

LocationClient mLocationClient; 
Location mCurrentLocation; 
TextView v1,v2; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    int resultCode = 
      GooglePlayServicesUtil.isGooglePlayServicesAvailable(this); 
    // If Google Play services is available 
    if (ConnectionResult.SUCCESS == resultCode) { 
     // In debug mode, log the status 
     Toast.makeText(this, "Serciços Google Play disponiveis",  Toast.LENGTH_LONG).show(); } 
    mLocationClient = new LocationClient(this, this, this); 
    mCurrentLocation = mLocationClient.getLastLocation(); 
    setContentView(R.layout.activity_main); 
    v1 = (TextView) findViewById(R.id.textView1); 
    v2 = (TextView) findViewById(R.id.textView2); 

    v1.setText(Double.toString(mCurrentLocation.getLatitude())); 
    v2.setText(Double.toString(mCurrentLocation.getLongitude())); 
} 


@Override 
public boolean onCreateOptionsMenu(Menu menu) { 
    // Inflate the menu; this adds items to the action bar if it is present. 
    getMenuInflater().inflate(R.menu.main, menu); 
    return true; 
} 


@Override 
protected void onStart() { 
    // TODO Auto-generated method stub 
    super.onStart(); 
    mLocationClient.connect(); 
} 


@Override 
protected void onStop() { 
    mLocationClient.disconnect(); 
    super.onStop(); 
} 


@Override 
public void onConnectionFailed(ConnectionResult arg0) { 
    // TODO Auto-generated method stub 

} 


@Override 
public void onConnected(Bundle arg0) { 
    Toast.makeText(this, "Connected", Toast.LENGTH_SHORT).show(); 

} 


@Override 
public void onDisconnected() { 
    Toast.makeText(this, "Disconnected. Please re-connect.", 
       Toast.LENGTH_SHORT).show(); 

} 

} 

Layoout：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
xmlns:tools="http://schemas.android.com/tools" 
android:layout_width="match_parent" 
android:layout_height="match_parent" 
android:paddingBottom="@dimen/activity_vertical_margin" 
android:paddingLeft="@dimen/activity_horizontal_margin" 
android:paddingRight="@dimen/activity_horizontal_margin" 
android:paddingTop="@dimen/activity_vertical_margin" 
tools:context=".MainActivity" > 

<TextView 
    android:id="@+id/textView1" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_alignParentLeft="true" 
    android:layout_alignParentTop="true" 
    android:layout_marginLeft="28dp" 
    android:layout_marginTop="21dp" 
    android:text="Large Text" 
    android:textAppearance="?android:attr/textAppearanceLarge" /> 

<TextView 
    android:id="@+id/textView2" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_alignRight="@+id/textView1" 
    android:layout_below="@+id/textView1" 
    android:layout_marginTop="32dp" 
    android:text="Large Text" 
    android:textAppearance="?android:attr/textAppearanceLarge" /> 

Answer 1

如錯誤消息所示，您不能調用mLocationClient.getLastLocation()，直到調用onConnected()。將該呼叫（以及任何依賴於該呼叫的呼叫）移至您的onConnected()方法。