的AndroidManifest.xml

Question

当我在我的设备上运行时它总是崩溃我已经尝试了很多东西但是我是初学者在android上地方部分只会向您展示您在地图上的位置，而您的协调似乎根本不适合我。

这是我的舱单代码

编辑代码后建议仍然无法工作继承日志猫

Log Cat

04-02 03:45:19.025: W/dalvikvm(1102): threadid=1: thread exiting with uncaught exception     (group=0x40a71930)
04-02 03:45:19.104: E/AndroidRuntime(1102): FATAL EXCEPTION: main
04-02 03:45:19.104: E/AndroidRuntime(1102): java.lang.RuntimeException: Unable to start  activityComponentInfo{com.hangoverhelper/com.hangoverhelper.Place}: java.lang.NullPointerException
04-02 03:45:19.104: E/AndroidRuntime(1102):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180)
04-02 03:45:19.104: E/AndroidRuntime(1102):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
04-02 03:45:19.104: E/AndroidRuntime(1102):     at android.app.ActivityThread.access$600(ActivityThread.java:141)
04-02 03:45:19.104: E/AndroidRuntime(1102):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
04-02 03:45:19.104: E/AndroidRuntime(1102):     at android.os.Handler.dispatchMessage(Handler.java:99)
04-02 03:45:19.104: E/AndroidRuntime(1102):     at android.os.Looper.loop(Looper.java:137)
04-02 03:45:19.104: E/AndroidRuntime(1102):     at android.app.ActivityThread.main(ActivityThread.java:5041)
04-02 03:45:19.104: E/AndroidRuntime(1102):     at java.lang.reflect.Method.invokeNative(Native Method)
04-02 03:45:19.104: E/AndroidRuntime(1102):     at java.lang.reflect.Method.invoke(Method.java:511)
04-02 03:45:19.104: E/AndroidRuntime(1102):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
04-02 03:45:19.104: E/AndroidRuntime(1102):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
04-02 03:45:19.104: E/AndroidRuntime(1102):     at dalvik.system.NativeStart.main(Native Method)
04-02 03:45:19.104: E/AndroidRuntime(1102):     Caused by: java.lang.NullPointerException
04-02 03:45:19.104: E/AndroidRuntime(1102):     at com.hangoverhelper.Place.onCreate(Place.java:42)
04-02 03:45:19.104: E/AndroidRuntime(1102):     at android.app.Activity.performCreate(Activity.java:5104)
04-02 03:45:19.104: E/AndroidRuntime(1102):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
04-02 03:45:19.104: E/AndroidRuntime(1102):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144)
04-02 03:45:19.104: E/AndroidRuntime(1102):     ... 11 more

Place.java

package com.hangoverhelper;
import com.hangoverhelper.R;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesUtil;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.LocationSource;
import com.google.android.gms.maps.MapFragment;

import android.location.Criteria;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.FragmentManager;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.TextView;
import android.widget.Toast;

public class Place extends Activity 
        implements LocationSource, LocationListener{

    final int RQS_GooglePlayServices = 1;
    private GoogleMap myMap;
    TextView tvLocInfo;

    LocationManager myLocationManager = null;
    OnLocationChangedListener myLocationListener = null;
    Criteria myCriteria;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_place);
        tvLocInfo = (TextView)findViewById(R.id.locinfo);

        FragmentManager myFragmentManager = getFragmentManager();
        MapFragment myMapFragment 
            = (MapFragment)myFragmentManager.findFragmentById(R.id.map);
        myMap = myMapFragment.getMap();

        myMap.setMyLocationEnabled(true);

        myMap.setMapType(GoogleMap.MAP_TYPE_HYBRID);

        myCriteria = new Criteria();
        myCriteria.setAccuracy(Criteria.ACCURACY_FINE);
        myLocationManager = (LocationManager)getSystemService(LOCATION_SERVICE);

    }

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

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        int itemId = item.getItemId();
        if (itemId == R.id.menu_legalnotices) {
            String LicenseInfo = GooglePlayServicesUtil.getOpenSourceSoftwareLicenseInfo(
                    getApplicationContext());
            AlertDialog.Builder LicenseDialog = new AlertDialog.Builder(Place.this);
            LicenseDialog.setTitle("Legal Notices");
            LicenseDialog.setMessage(LicenseInfo);
            LicenseDialog.show();
            return true;
        }
        return super.onOptionsItemSelected(item);   
    }

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

        int resultCode = GooglePlayServicesUtil.isGooglePlayServicesAvailable(getApplicationContext());

        if (resultCode == ConnectionResult.SUCCESS){
            Toast.makeText(getApplicationContext(), 
                    "isGooglePlayServicesAvailable SUCCESS", 
                    Toast.LENGTH_LONG).show();

            //Register for location updates using a Criteria, and a callback on the specified looper thread.
            myLocationManager.requestLocationUpdates(
                    0L,             //minTime
                    0.0f,           //minDistance
                    myCriteria,     //criteria
                    this,           //listener
                    null);          //looper

            //Replaces the location source of the my-location layer.
            myMap.setLocationSource(this);

        }else{
            GooglePlayServicesUtil.getErrorDialog(resultCode, this, RQS_GooglePlayServices);    
        }

    }

    @Override
    protected void onPause() {
        myMap.setLocationSource(null);
        myLocationManager.removeUpdates(this);

        super.onPause();
    }

    @Override
    public void activate(OnLocationChangedListener listener) {
        myLocationListener = listener;
    }

    @Override
    public void deactivate() {
        myLocationListener = null;
    }

    @Override
    public void onLocationChanged(Location location) {
        if (myLocationListener != null) {
            myLocationListener.onLocationChanged(location);

            double lat = location.getLatitude();
            double lon = location.getLongitude();

            tvLocInfo.setText(
                    "lat: " + lat + "\n" +
                    "lon: " + lon);
        }
    }

    @Override
    public void onProviderDisabled(String arg0) {
        // TODO Auto-generated method stub

    }

    @Override
    public void onProviderEnabled(String arg0) {
        // TODO Auto-generated method stub

    }

    @Override
    public void onStatusChanged(String arg0, int arg1, Bundle arg2) {
        // TODO Auto-generated method stub

    }

}

的AndroidManifest.xml

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

    <uses-sdk
        android:minSdkVersion="11"
        android:targetSdkVersion="17" />

    <permission 
        android:name="com.hangoverhelper.permission.MAPS_RECEIVE" 
        android:protectionLevel="signature"></permission>
    <uses-permission 
        android:name="com.hangoverhelper.permission.MAPS_RECEIVE"/>
    <uses-permission 
        android:name="com.google.android.providers.gsf.permission.READ_GSERVICES"/>
    <uses-permission 
        android:name="android.permission.INTERNET"/>
    <uses-permission 
        android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    <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"/>

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

        <activity
            android:name="com.hangoverhelper.SplashActivity"
            android:label="@string/title_activity_splash"
            android:theme="@style/Theme.Splash" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity
            android:name="com.hangoverhelper.MainActivity"
            android:label="@string/app_name"
            android:theme="@style/AppTheme" >
        </activity>
        <activity
            android:name="com.hangoverhelper.Place"
            android:configChanges="orientation|keyboardHidden|screenSize"
            android:label="@string/local_title"
            android:theme="@style/AppTheme" >
        </activity>
        <activity
            android:name="com.hangoverhelper.Pill"
            android:label="@string/pills_title" >
        </activity>
        <activity
            android:name="com.hangoverhelper.Food"
            android:label="@string/food_title" >
        </activity>
        <activity
            android:name="com.hangoverhelper.Coffee"
            android:label="@string/coffee_title" >
        </activity>
        <activity
            android:name="com.hangoverhelper.Home"
            android:label="@string/home_title" >
        </activity>
      <meta-data
    android:name="com.google.android.maps.v2.API_KEY"
    android:value="AIzaSyBkFR4cjuUf2rw8MfLBrWS8iaS2-Th5XA4"/>
    </application>

</manifest>

* activity_place.xml *

<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:orientation="vertical"
    tools:context=".Place" >

    <fragment
        android:id="@+id/map"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        class="com.google.android.gms.maps.MapFragment"
        tools:layout="@layout/custom_info_contents" />

    <LinearLayout 
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:background="#A0FFFFFF" >
        <TextView
            android:id="@+id/locinfo"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"/>
        <ImageView 
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/local" />

    </LinearLayout>

</RelativeLayout>

Answer 1

您的代码中存在一些问题：

1。删除此行：

<uses-library android:name="com.google.android.maps" />

来自清单文件，用于Google Map API V1。

2。将此代码安静放在应用程序代码的底部：

<meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="My API CODE"/>

使用您生成的Google Map for Android API V2密钥。

3。这些权限中的包名称：

 <permission 
    android:name="com.example.androidmapsv2.permission.MAPS_RECEIVE" 
    android:protectionLevel="signature"></permission>
<uses-permission 
    android:name="com.example.androidmapsv2.permission.MAPS_RECEIVE"/>

不匹配为您的应用程序指定的包名称（它应该）：

package="com.hangoverhelper"

Google Maps Android API v2每次都会崩溃

的AndroidManifest.xml

* activity_place.xml *

1 个答案: