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我在setHint方法上得到了NPE。 logcat中顯示了這個錯誤：PlaceAutoCompleteFragment setHint NPE
void android.widget.EditText.setHint(java.lang.CharSequence)' on a null object reference.
這裏是我的代碼：
AutocompleteFilter typeFilter = new AutocompleteFilter.Builder()
.setTypeFilter(AutocompleteFilter.TYPE_FILTER_NONE)
.build();
if (pickup_point == null) {
Fn.logD("BOOKNOW_FRAGMENT", "autocompleteFragment_null");
pickup_point = (PlaceAutocompleteFragment) PlaceAutocompleteFragment.instantiate(getActivity(), "com.google.android.gms.location.places.ui.PlaceAutocompleteFragment");
getActivity().getFragmentManager().beginTransaction().replace(R.id.pickup_container, pickup_point).commit();
Fn.logD("pickup_point_fragment",String.valueOf(pickup_point));
pickup_point.setFilter(typeFilter);
if ((southwest != null)) {
Fn.SystemPrintLn("******haha**my curn loc is : " + southwest.longitude + " " + southwest.latitude);
pickup_point.setBoundsBias(new LatLngBounds(southwest, northeast));
}
pickup_point.setOnPlaceSelectedListener(new PlaceSelectionListener() {
@Override
public void onPlaceSelected(Place place) {
Fn.logD("BOOKNOW_FRAGMENT", "onPlaceSelected");
pickuppoint_name = (String) place.getName();
pickup_address = (String) place.getAddress();
pickup_latlng = place.getLatLng();
pickup_lat = pickup_latlng.latitude;
pickup_lng = pickup_latlng.longitude;
}
@Override
public void onError(Status status) {
Fn.logD("BOOKNOW_FRAGMENT", "onError");
// TODO: Handle the error.
Fn.logD("BOOKNOW_FRAGMENT", "An error occurred: " + status);
}
});
pickup_point.setHint("Pickup Point");
}
if (dropoff_point == null) {
Fn.logD("BOOKNOW_FRAGMENT", "autocompleteFragment_null");
dropoff_point = (PlaceAutocompleteFragment) PlaceAutocompleteFragment.instantiate(getActivity(), "com.google.android.gms.location.places.ui.PlaceAutocompleteFragment");
getActivity().getFragmentManager().beginTransaction().replace(R.id.dropoff_container, dropoff_point).commit();
//pickup_point.setHint("Pickup Point");
dropoff_point.setFilter(typeFilter);
if ((southwest != null)) {
dropoff_point.setBoundsBias(new LatLngBounds(southwest, northeast));
}
dropoff_point.setOnPlaceSelectedListener(new PlaceSelectionListener() {
@Override
public void onPlaceSelected(Place place) {
Fn.logD("BOOKNOW_FRAGMENT", "onPlaceSelected");
dropoffpoint_name = (String) place.getName();
dropoff_address = (String) place.getAddress();
}
這是從XML文件中的相關代碼：
<LinearLayout
style="@style/horizontal_LL.sm.2">
<LinearLayout
style="@style/edittext_fragment"
android:id="@+id/pickup_container"
android:orientation="vertical">
</LinearLayout>
</LinearLayout>
<LinearLayout
style="@style/horizontal_LL.sm.2">
<LinearLayout
style="@style/edittext_fragment"
android:orientation="vertical"
android:id="@+id/dropoff_container">
</LinearLayout>
</LinearLayout>
我知道非常多關於NPE和如何解決它們，但我找不到解決方案。提前致謝。
這似乎是這個問題： https://code.google.com/p/android/issues/detail?id=23972