回收查看适配器上的GoogleAPIClient

Question

这个应用程序有一个片段，可以对单个表数据库执行CRUD操作。

它是在一个绘制FAB和回收视图的类上完成的。

FAB打开一个带有插入表单的alertDialog。

recyclerview将数据库行显示为卡片视图。每个卡片视图都有一个编辑按钮和一个删除按钮。

编辑按钮打开一个包含编辑表单的警报对话框。

数据库存储行程，每个行程都有一个起点和一个终点。

当输入或编辑这些地方时，用户会得到建议。

为此，我使用了GooglePlaces Web Service API，但我注意到我必须为Android使用Google Places API因此GoogleApiClient

请注意，该应用程序运行良好，成功地完成了CRUD，甚至从Web Services获得了方向建议。

我能够使插入表单使用正确的API，但不能使用编辑表单

这是片段代码：

public class RecyclerFragment extends Fragment
implements AlertDialog.OnClickListener,
GoogleApiClient.OnConnectionFailedListener,
GoogleApiClient.ConnectionCallbacks {
private static final String TAG = "RecyclerFragment";
RunDbHelper runDbHelper; // Database helper class
RecyclerView recyclerView;
RecyclerViewAdapter recyclerViewAdapter;
private OnOkButtonListener mCallback;    
private GoogleApiClient mGoogleApiClient;
private PlaceArrayAdapter mPlaceArrayAdapter;
private static final int GOOGLE_API_CLIENT_ID = 0;
private static final LatLngBounds BOUNDS_MOUNTAIN_VIEW = new LatLngBounds(
new LatLng(37.398160, -122.180831), new LatLng(37.430610, -121.972090));
private static LatLngBounds BOUNDS_AUTOCOMPLETE;
public RecyclerFragment() {
this.mCallback = null;
}
// main activity calls this method to pass the location so it can calculate bounds for the direction suggestions
public void setAutocompleteBounds(LatLng centerLatLng){
if (centerLatLng!= null && !centerLatLng.toString().isEmpty()){
Double latSW, lngSW, lngNE, latNE;
latSW = centerLatLng.latitude-.5;
lngSW = centerLatLng.latitude-.5;
lngNE = centerLatLng.latitude+.5;
latNE = centerLatLng.latitude+.5;
BOUNDS_AUTOCOMPLETE = new LatLngBounds(
new LatLng(latSW, lngSW), new LatLng(latNE, lngNE));
} else {
BOUNDS_AUTOCOMPLETE = BOUNDS_MOUNTAIN_VIEW;
}
}
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_recycler, container, false);
try {
mGoogleApiClient = new GoogleApiClient.Builder(getContext())
.addApi(Places.GEO_DATA_API)
.enableAutoManage(getActivity(), GOOGLE_API_CLIENT_ID, this)
.addConnectionCallbacks(this)
.build();
} catch ( Exception e) {
Log.i(TAG, "onCreateView: " + e);
}
mPlaceArrayAdapter = new PlaceArrayAdapter(getContext(), android.R.layout.simple_list_item_1,
BOUNDS_AUTOCOMPLETE, null);
runDbHelper = RunDbHelper.getInstance(getContext());
List<RunData> mList = runDbHelper.getAllRuns();
recyclerViewAdapter = new RecyclerViewAdapter(getContext(), mList);
recyclerView = (RecyclerView) view.findViewById(R.id.rvRunList);
recyclerView.setHasFixedSize(true);
recyclerView.setAdapter(recyclerViewAdapter);
recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
FloatingActionButton fab = (FloatingActionButton) view.findViewById(R.id.fabAdd);
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
// Data entry dialog to insert new runs into database
dialogInsertRun();
}
});
return view;
}
@Override
public void onActivityCreated(@Nullable Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
}
public void dialogInsertRun() { 
// Get the Activity for layout inflater as this dialog runs inside a fragment
LayoutInflater inflater = LayoutInflater.from(getActivity());
final View view = inflater.inflate(R.layout.dialog_new_run, null);
// Dialog Builder
AlertDialog.Builder addRunDialog = new AlertDialog.Builder(getActivity());
addRunDialog.setTitle(R.string.dialog_insert_run_title)
.setView(view);
// Data entry field objects
final EditText runParcelEditText = (EditText) view.findViewById(R.id.new_run_parcel);
final AutoCompleteTextView collectAddressACTV = (AutoCompleteTextView) view.findViewById(R.id.actv_new_collect_address);
final EditText collectPersonEditText = (EditText) view.findViewById(R.id.new_collect_person);
final AutoCompleteTextView deliveryAddressACTV = (AutoCompleteTextView) view.findViewById(R.id.actv_new_delivery_address);
final EditText deliveryPersonEditText = (EditText) view.findViewById(R.id.new_delivery_person);
collectAddressACTV.setThreshold(3);
collectAddressACTV.setOnItemClickListener(mAutocompleteClickListener);
collectAddressACTV.setAdapter(mPlaceArrayAdapter);
deliveryAddressACTV.setThreshold(3);
deliveryAddressACTV.setOnItemClickListener(mAutocompleteClickListener);
deliveryAddressACTV.setAdapter(mPlaceArrayAdapter);
addRunDialog.setPositiveButton(R.string.button_positive, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int id) {
RunData runData = new RunData(); // POJO that holds data from database
runData.run_parcel = getStringOrEmpty(runParcelEditText);
runData.collect_person = getStringOrEmpty(collectPersonEditText);
runData.collect_address = getStringOrEmpty(collectAddressACTV);
runData.delivery_person = getStringOrEmpty(deliveryPersonEditText);
runData.delivery_address = getStringOrEmpty(deliveryAddressACTV);
// must insert at least one of the places (starting or ending point) or both
if (!(runData.collect_address.isEmpty() && runData.delivery_address.isEmpty())) {
runData = runDbHelper.insertRun(runData, getActivity());
if (runData != null) {
cardViewMessageIsEmpty.setVisibility(View.INVISIBLE);
recyclerViewAdapter = new RecyclerViewAdapter(getActivity(), runDbHelper.getAllRuns());
recyclerView.setAdapter(recyclerViewAdapter);
recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
mCallback.addMarkersToMap(runData);
}
} else {
Toast.makeText(getActivity(), R.string.dialog_insert_run_toast_nowhere, Toast.LENGTH_LONG).show();
}
}
});
addRunDialog.setNegativeButton(R.string.button_negative, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
dialog.cancel();
}
});
addRunDialog.create();
addRunDialog.show();
}
private String getStringOrEmpty(EditText editText) {
String mString = editText.getText().toString();
mString = (mString == null || mString.isEmpty() ? "" : mString);
return mString;
}
@Override
public void onClick(DialogInterface dialogInterface, int i) {
//Log.d(TAG, "onClick: ");
}
@Override
public void onAttach(Context context) {
if (context instanceof OnOkButtonListener) {
mCallback = (OnOkButtonListener) context; // keep a reference to eula activity for interface
} else {
throw new ClassCastException(context.toString()
+ getString(R.string.exception_onokbutton_listener));
}
super.onAttach(context);
}
public void setCustomObjectListener(OnOkButtonListener listener) {
this.mCallback = listener;
}
@Override
public void onConnected(@Nullable Bundle bundle) {
mPlaceArrayAdapter.setGoogleApiClient(mGoogleApiClient);
Log.i(TAG, "Google Places API connected.");
}
@Override
public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {
Log.e(TAG, "Google Places API connection failed with error code: "
+ connectionResult.getErrorCode());
Toast.makeText(getContext(),
"Google Places API connection failed with error code:" +
connectionResult.getErrorCode(),
Toast.LENGTH_LONG).show();
}
@Override
public void onConnectionSuspended(int i) {
mPlaceArrayAdapter.setGoogleApiClient(null);
Log.e(TAG, "Google Places API connection suspended.");
}
public interface OnOkButtonListener {
void addMarkersToMap(RunData runData);
}
private AdapterView.OnItemClickListener mAutocompleteClickListener
= new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
final PlaceArrayAdapter.PlaceAutocomplete item = mPlaceArrayAdapter.getItem(position);
final String placeId = String.valueOf(item.placeId);
Log.i(TAG, "Selected: " + item.description);
PendingResult<PlaceBuffer> placeResult = Places.GeoDataApi
.getPlaceById(mGoogleApiClient, placeId);
placeResult.setResultCallback(mUpdatePlaceDetailsCallback);
Log.i(TAG, "Fetching details for ID: " + item.placeId);
}
};
@Override
public void onDestroyView() {
super.onDestroyView();
if(mGoogleApiClient != null && mGoogleApiClient.isConnected()) {
mGoogleApiClient.stopAutoManage(getActivity());
mGoogleApiClient.disconnect();
}
}   
private ResultCallback<PlaceBuffer> mUpdatePlaceDetailsCallback
= new ResultCallback<PlaceBuffer>() {
@Override
public void onResult(PlaceBuffer places) {
if (!places.getStatus().isSuccess()) {
Log.e(TAG, "Place query did not complete. Error: " +
places.getStatus().toString());
return;
}
// Selecting the first object buffer.
}
};
}

这是适配器代码：

class RecyclerViewAdapter extends RecyclerView.Adapter<RecyclerViewAdapter.RecyclerViewHolder> {
private static final String TAG = "RecyclerViewAdapter";
private Context context;
private List<RunData> dataList = new ArrayList<>();
private LayoutInflater inflater;
private RunDbHelper runDbHelper;
RecyclerViewAdapter(Context context, List<RunData> dataList1) {
this.context = context;
this.dataList = dataList1;
this.runDbHelper = RunDbHelper.getInstance(this.context);
inflater = LayoutInflater.from(context);
}
@Override
public RecyclerViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View inflateView = inflater.inflate(R.layout.fragment_recycler_row, parent, false);
return new RecyclerViewHolder(inflateView);
}
@Override
public void onBindViewHolder(final RecyclerViewHolder holder, final int position) {
holder.runID.setText(dataList.get(position).run_id);
holder.collectAddress.setText(dataList.get(position).collect_address);
holder.deliveryAddress.setText(dataList.get(position).delivery_address);     
holder.ivEdit.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {               
RunData runData = new RunData();
runData.run_id = holder.runID.getText().toString();                
runData.collect_address = holder.collectAddress.getText().toString();
runData.delivery_address = holder.deliveryAddress.getText().toString();                
dialogEditRun(runData, position);
}
});
}
@Override
public int getItemCount() {
return dataList.size();
}
public void dialogEditRun(RunData runData, int position) {
// Get the Activity for layout inflater as this dialog runs inside a fragment
LayoutInflater inflater = LayoutInflater.from(context);
final View inflaterView = inflater.inflate(R.layout.dialog_edit_run, null);
// Data entry field objects
final String mRunID;
final AutoCompleteTextView collectAddressACTV = (AutoCompleteTextView) inflaterView.findViewById(R.id.actv_edit_collect_address);
final AutoCompleteTextView deliveryAddressACTV = (AutoCompleteTextView) inflaterView.findViewById(R.id.actv_edit_delivery_address);
mRunID = runData.run_id;
collectAddressACTV.setText(runData.collect_address);
deliveryAddressACTV.setText(runData.delivery_address);
// HERE THE FIELDS AND THE SUGGESTIONS ARE LINKED
// Set directions into recyclerViewAdapter for autocomplete
// here is still using G. Places WebService API. Should be G. Places API for Android, using GoogleApiClient
collectAddressACTV.setAdapter(new GooglePlacesAutocompleteAdapter(context, R.layout.dialog_new_run_autocomplete));
deliveryAddressACTV.setAdapter(new GooglePlacesAutocompleteAdapter(context, R.layout.dialog_new_run_autocomplete));
// Dialog Builder
AlertDialog.Builder editRunDialog = new AlertDialog.Builder(context);
editRunDialog.setTitle(R.string.dialog_update_run_title).setView(inflaterView);
editRunDialog.setPositiveButton(R.string.button_positive, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int id) {
RunData runData = new RunData();
int position = (int) run_date.getTag();
runData.run_id = mRunID;
runData.collect_address = getStringOrEmpty(collectAddressACTV);
runData.delivery_address = getStringOrEmpty(deliveryAddressACTV);
if (!(runData.collect_address.isEmpty() && runData.delivery_address.isEmpty())){
// try to update, if success update recycler.
if (runDbHelper.updateRun(runData, context)){
// atualiza o recyclerview
dataList.remove(position);
notifyItemRemoved(position);
dataList.add(position,runData);
notifyItemRangeChanged(position, dataList.size());
notifyItemInserted(position);
} else {
Toast.makeText(context, "No record updated", Toast.LENGTH_SHORT).show();
}
} else {
Toast.makeText(context, "Inform at least one direction", Toast.LENGTH_SHORT).show();
}
}
});
editRunDialog.setNegativeButton(R.string.button_negative, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
dialog.cancel();
}
});
editRunDialog.create();
editRunDialog.show();
}
private String getStringOrEmpty(EditText editText) {
String mString = editText.getText().toString();
mString = (mString.isEmpty() ? "" : mString);
return mString;
}
class RecyclerViewHolder extends RecyclerView.ViewHolder {
TextView runID, collectAddress, deliveryAddress;
ImageView ivEdit;
RecyclerViewHolder(View rowView) {
super(rowView);
runID = (TextView) rowView.findViewById(R.id.runId);
collectAddress = (TextView) rowView.findViewById(R.id.collectAddress);
deliveryAddress = (TextView) rowView.findViewById(R.id.deliveryAddress);
ivEdit = (ImageView) rowView.findViewById(R.id.ivEdit);
}
}
}

当我试图在reclycler适配器中添加代码来实例化GoogleApiClient时，在onCreateViewHolder(ViewGroup父级，int viewType)，Android Studio不会允许我。我找不到enableAutoManage的正确参考

mGoogleApiClient = new GoogleApiClient.Builder(context)
.addApi(Places.GEO_DATA_API)
.enableAutoManage(HEREISTHEERROR, GOOGLE_API_CLIENT_ID, this) // nada do que tentei colocar aqui no lugar do XXXXXXX funcionou!
.addConnectionCallbacks(this)
.build();

总之，我想要完成的是在alertDialog中显示的表单中添加或编辑方向数据时收到建议。

必须使用android的Google Places API，因此Google ApiClient。

不确定这是否是正确的方法，所以…欢迎任何建议或解决方案。

Answer 1

我已经解决了这个问题。

只能有一个GoogleApiClient和enableAutoManage()。对API的其他调用必须处理生命周期。

访问Google API