我在我的应用程序中使用Google Places Autocomplete API。我遵循了这个教程http://wptrafficanalyzer.in/blog/adding-google-places-autocomplete-api-as-custom-suggestions-in-android-search-dialog/但是当我在搜索框中写下地名时，它没有检索到建议，当我按下Go按钮时，我的应用程序崩溃了。请帮忙
日志文件
03-10 16:51:56.383: E/ActivityThread(25238): Failed to find provider info for com.appscourt.earth.map.PlaceProvider
03-10 16:51:58.798: E/ActivityThread(25238): Failed to find provider info for com.appscourt.earth.map.PlaceProvider
03-10 16:51:59.594: E/ActivityThread(25238): Failed to find provider info for com.appscourt.earth.map.PlaceProvider
03-10 16:52:00.399: E/ActivityThread(25238): Failed to find provider info for com.appscourt.earth.map.PlaceProvider
03-10 16:52:01.805: E/ActivityThread(25238): Failed to find provider info for com.appscourt.earth.map.PlaceProvider
03-10 16:52:06.298: E/ActivityThread(25238): Failed to find provider info for com.appscourt.earth.map.PlaceProvider
03-10 16:52:06.313: D/AndroidRuntime(25238): Shutting down VM
03-10 16:52:06.313: W/dalvikvm(25238): threadid=1: thread exiting with uncaught exception (group=0x40d072a0)
03-10 16:52:06.344: E/AndroidRuntime(25238): FATAL EXCEPTION: main
03-10 16:52:06.344: E/AndroidRuntime(25238): java.lang.NullPointerException
03-10 16:52:06.344: E/AndroidRuntime(25238): at com.appscourt.earth.map.location.MainActivity.showLocations(MainActivity.java:129)
03-10 16:52:06.344: E/AndroidRuntime(25238): at com.appscourt.earth.map.location.MainActivity.onLoadFinished(MainActivity.java:116)
03-10 16:52:06.344: E/AndroidRuntime(25238): at com.appscourt.earth.map.location.MainActivity.onLoadFinished(MainActivity.java:1)
03-10 16:52:06.344: E/AndroidRuntime(25238): at android.support.v4.app.LoaderManagerImpl$LoaderInfo.callOnLoadFinished(LoaderManager.java:427)
03-10 16:52:06.344: E/AndroidRuntime(25238): at android.support.v4.app.LoaderManagerImpl$LoaderInfo.onLoadComplete(LoaderManager.java:395)
03-10 16:52:06.344: E/AndroidRuntime(25238): at android.support.v4.content.Loader.deliverResult(Loader.java:104)
03-10 16:52:06.344: E/AndroidRuntime(25238): at android.support.v4.content.CursorLoader.deliverResult(CursorLoader.java:73)
03-10 16:52:06.344: E/AndroidRuntime(25238): at android.support.v4.content.CursorLoader.deliverResult(CursorLoader.java:35)
03-10 16:52:06.344: E/AndroidRuntime(25238): at android.support.v4.content.AsyncTaskLoader.dispatchOnLoadComplete(AsyncTaskLoader.java:223)
03-10 16:52:06.344: E/AndroidRuntime(25238): at android.support.v4.content.AsyncTaskLoader$LoadTask.onPostExecute(AsyncTaskLoader.java:61)
03-10 16:52:06.344: E/AndroidRuntime(25238): at android.support.v4.content.ModernAsyncTask.finish(ModernAsyncTask.java:461)
03-10 16:52:06.344: E/AndroidRuntime(25238): at android.support.v4.content.ModernAsyncTask.access$500(ModernAsyncTask.java:47)
03-10 16:52:06.344: E/AndroidRuntime(25238): at android.support.v4.content.ModernAsyncTask$InternalHandler.handleMessage(ModernAsyncTask.java:474)
03-10 16:52:06.344: E/AndroidRuntime(25238): at android.os.Handler.dispatchMessage(Handler.java:99)
03-10 16:52:06.344: E/AndroidRuntime(25238): at android.os.Looper.loop(Looper.java:137)
03-10 16:52:06.344: E/AndroidRuntime(25238): at android.app.ActivityThread.main(ActivityThread.java:5059)
03-10 16:52:06.344: E/AndroidRuntime(25238): at java.lang.reflect.Method.invokeNative(Native Method)
03-10 16:52:06.344: E/AndroidRuntime(25238): at java.lang.reflect.Method.invoke(Method.java:511)
03-10 16:52:06.344: E/AndroidRuntime(25238): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:792)
03-10 16:52:06.344: E/AndroidRuntime(25238): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:555)
03-10 16:52:06.344: E/AndroidRuntime(25238): at dalvik.system.NativeStart.main(Native Method)
MainActivity.Java
public class MainActivity extends FragmentActivity implements
LoaderCallbacks<Cursor> {
GoogleMap gMap;
ImageButton search;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initializeMap();
handleIntent(getIntent());
search = (ImageButton)findViewById(R.id.search);
search.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
onSearchRequested();
}
});
}
private void handleIntent(Intent intent) {
if (intent.getAction().equals(Intent.ACTION_SEARCH)) {
doSearch(intent.getStringExtra(SearchManager.QUERY));
} else if (intent.getAction().equals(Intent.ACTION_VIEW)) {
getPlace(intent.getStringExtra(SearchManager.EXTRA_DATA_KEY));
}
}
@Override
protected void onNewIntent(Intent intent) {
super.onNewIntent(intent);
setIntent(intent);
handleIntent(intent);
}
private void doSearch(String query) {
Bundle data = new Bundle();
data.putString("query", query);
getSupportLoaderManager().restartLoader(0, data, this);
}
private void getPlace(String query) {
Bundle data = new Bundle();
data.putString("query", query);
getSupportLoaderManager().restartLoader(1, data, this);
}
@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
public boolean onMenuItemSelected(int featureId, MenuItem item) {
// TODO Auto-generated method stub
switch (item.getItemId()) {
case R.id.action_search:
onSearchRequested();
break;
default:
break;
}
return super.onMenuItemSelected(featureId, item);
}
@Override
public Loader<Cursor> onCreateLoader(int arg0, Bundle query) {
CursorLoader cLoader = null;
if (arg0 == 0)
cLoader = new CursorLoader(getBaseContext(),
PlaceProvider.SEARCH_URI, null, null,
new String[] { query.getString("query") }, null);
else if (arg0 == 1)
cLoader = new CursorLoader(getBaseContext(),
PlaceProvider.DETAILS_URI, null, null,
new String[] { query.getString("query") }, null);
return cLoader;
}
@Override
public void onLoadFinished(Loader<Cursor> arg0, Cursor c) {
// TODO Auto-generated method stub
showLocations(c);
}
@Override
public void onLoaderReset(Loader<Cursor> arg0) {
// TODO Auto-generated method stub
}
private void showLocations(Cursor c) {
MarkerOptions markerOptions = null;
LatLng position = null;
gMap.clear();
while (c.moveToNext()) {
markerOptions = new MarkerOptions();
position = new LatLng(Double.parseDouble(c.getString(1)),
Double.parseDouble(c.getString(2)));
markerOptions.position(position);
markerOptions.title(c.getString(0));
gMap.addMarker(markerOptions);
}
if (position != null) {
CameraUpdate cameraPosition = CameraUpdateFactory
.newLatLng(position);
gMap.animateCamera(cameraPosition);
}
}
@SuppressLint("NewApi")
private void initializeMap() {
if (gMap == null) {
gMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(
R.id.map)).getMap();
// check if map is created successfully or not
if (gMap == null) {
Toast.makeText(getApplicationContext(),
"Sorry! unable to create maps", Toast.LENGTH_SHORT)
.show();
}
}
}
}
答案 0 :(得分：0)
public void onLoadFinished(Loader<Cursor> arg0, Cursor c) {
// TODO Auto-generated method stub
showLocations(c);
}
我的猜测是你的Cursor为null。你检查过了吗？
答案 1 :(得分：0)
Google Place已被弃用，因此您必须使用新的Place SDK。 您可以按照此答案轻松实现新的Place SDK。