相关疑难解决方法(0)

我正在测试适用于Android的新Google Maps API V2,并在应用启动时收到此消息:

这是在4.1模拟器上运行.

这是我的AndroidManifest.xml档案:

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.maptest"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="15" />

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

    <!-- Require OpenGL ES version 2 -->
    <uses-feature
          android:glEsVersion="0x00020000"
          android:required="true"/>

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

        <activity
            android:name=".MainActivity"
            android:label="@string/title_activity_main" >
            <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.maps.v2.API_KEY"
            android:value="##myapikey##"/>

    </application>
</manifest>

文件MainActivity.java:

public class MainActivity extends Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState); …

我有一个活动,它从列表中输出json数据.但现在我想在一个片段中实现它.在这个片段中,我想将其视为gridview.这两个文件都运行正常.但是当我尝试实现AsyncTask时,我得到几个redflags作为无法访问的代码.请有人帮我这个吗？

编辑:新的

    public class SalesFragment extends Fragment {
        GridView gridView;

        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container,
                Bundle savedInstanceState) {
            View gv = inflater.inflate(R.layout.hot_sales, null);
            gridView = (GridView) gv.findViewById(R.id.grid_view);
            bindGridview();
            return gv;
        }

        public void bindGridview() {

           new MyAsyncTask(getActivity(),gridView).execute("");
        }

        class MyAsyncTask extends AsyncTask<String, String, String> {
            GridView mGridView;
            Activity mContext;
            Response response;
           public  MyAsyncTask(Activity context,GridView gview) {
             this.mGridView=gview;
             this.mContext=context;
            }

           protected String doInBackground(String... params)  {

               File file = new File( Environment.getExternalStorageDirectory().getAbsolutePath() + "/Android/data/sample.txt");
                if(file.exists()) {
                    try{
                           Reader inputStreamReader …