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我花了最後一天試圖用Google Places請求的結果填充我的ListView對象。請求很好，肯定有物品進入我的數據對象。但是當我試圖將這些數據添加到ListView時，無論我嘗試什麼，我總是會得到空行。 getView（）被調用，但它似乎沒有效果。下面是代碼中的相關片段：ListView未填充，但getView（）被調用
我的main.xml：
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<Button
android:id="@+id/gps_activate_button"
android:layout_width="match_parent"
android:layout_height="0dip"
android:text="@string/gps_activate_button"
android:layout_weight="1" />
<ListView
android:id="@+id/results_list_view"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
</ListView>
<TextView android:id="@id/android:empty"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:text="No data" />
</LinearLayout>
我的自定義行顯示鄰居信息：
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="?android:attr/listPreferredItemHeight"
android:padding="6dip"
android:orientation="vertical" >
<ImageView android:id="@+id/icon"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:layout_marginRight="6dip"
android:contentDescription="@string/custom_row_icon" />
<LinearLayout
android:orientation="vertical"
android:layout_width="0dip"
android:layout_weight="1"
android:layout_height="0dip">
<TextView android:id="@+id/name_text_view"
android:layout_width="fill_parent"
android:layout_height="0dip"
android:textColor="#ffffff" />
<TextView android:id="@+id/reference_text_view"
android:layout_width="fill_parent"
android:layout_height="0dip"
android:textColor="#999999" />
<TextView android:id="@+id/rating_text_view"
android:layout_width="fill_parent"
android:layout_height="0dip"
android:textColor="#EBE41C" />
</LinearLayout>
</LinearLayout>
的onCreate：
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
lv = (ListView) findViewById(R.id.results_list_view);
gpSearchResponse = new GooglePlacesSearchResponse();
gpAdapter = new GooglePlacesSearchResponseAdapter(this, R.layout.custom_gp_result_row, gpSearchResponse.getGpSearchResults());
lv.setAdapter(gpAdapter);
locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
viewGooglePlacesSearchResults = new Runnable() {
@Override
public void run() {
Location location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if (location == null) {
location = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
}
getGooglePlacesSearchResults(location);
}
};
Thread thread = new Thread(null, viewGooglePlacesSearchResults, "GooglePlacesBackground");
thread.start();
searchResultsDialog = ProgressDialog.show(this, "Please wait...", "Retrieving data ...", true);
}
getGooglePlacesSearchResults：
private void getGooglePlacesSearchResults(Location location) {
try {
GooglePlacesSearchResponseHandler handler = new GooglePlacesSearchResponseHandler();
String FINAL_URL = PLACES_SEARCH_URL + "location=" + location.getLatitude() + "," + location.getLongitude() +"&radius=5000&types=bar%7Cmovie_theater%7Cnight_club%7Crestaurant%7Cshopping_mall&sensor=true&key=AIzaSyD-GWPYtYJMbJuTXuTVXfGXKlVPuWD0d6Q";
JSONObject json = handler.getJSONFromUrl(FINAL_URL); // getting JSON
Log.i("URL", FINAL_URL);
GooglePlacesSearchResponseParser parser = new GooglePlacesSearchResponseParser();
try {
gpSearchResponse = parser.parseResults(json);
} catch (JSONException e) {
throw new RuntimeException(e);
}
Thread.sleep(5000);
Log.i("ARRAY", ""+ gpSearchResponse.getGpSearchResults().size());
} catch (Exception e) {
Log.e("BACKGROUND_PROC", e.getMessage());
}
runOnUiThread(returnResults);
}
我重寫getView（）方法：
public View getView(int position, View convertView, ViewGroup parent) {
View v = convertView;
if (v == null) {
LayoutInflater vi = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v = vi.inflate(R.layout.custom_gp_result_row, null);
}
GooglePlacesSearchResult gpSearchResult = items.get(position);
if (gpSearchResult != null) {
//ImageView iconImageView = (ImageView) v.findViewById(R.id.icon);
TextView nameTextView = (TextView) v.findViewById(R.id.name_text_view);
TextView referenceTextView = (TextView) v.findViewById(R.id.reference_text_view);
TextView ratingTextView = (TextView) v.findViewById(R.id.rating_text_view);
/*if (iconImageView != null) {
iconImageView.setImageURI(Uri.parse(Uri.encode(gpSearchResult.getIconURL())));
}*/
if(nameTextView != null){
nameTextView.setText(gpSearchResult.getName());
}
if (referenceTextView != null) {
referenceTextView.setText(gpSearchResult.getReference());
}
if(ratingTextView != null){
ratingTextView.setText(gpSearchResult.getRating());
}
}
return v;
}
以及通知適配器一個Runnable對象：
private Runnable returnResults = new Runnable() {
@Override
public void run() {
if (gpSearchResponse.getGpSearchResults() != null && gpSearchResponse.getGpSearchResults().size() > 0) {
gpAdapter.notifyDataSetChanged();
gpAdapter.setGooglePlacesSearchResult(gpSearchResponse.getGpSearchResults());
}
searchResultsDialog.dismiss();
gpAdapter.notifyDataSetChanged();
}
};
我很新的Android開發所以在我的知識差距大，但最好的我可以告訴它看起來getView（）是問題的根源，因爲儘管它被調用並確實被我的對象填充，但屏幕上並沒有任何反應。
最後，我根據很多的線程和UI的東西掉這個代碼在這裏：http://www.softwarepassion.com/android-series-custom-listview-items-and-adapters/
感謝您的幫助，您可以提供！