Android Open Source - StockTicker Ticker Selector Activity

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Back to project page StockTicker.
License

The source code is released under:
MIT License
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Java Source Code

package com.github.premnirmal.ticker.ui;
// w  ww.  j  a  v a2s  .  c  om
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.Toast;

import com.github.premnirmal.ticker.BaseActivity;
import com.github.premnirmal.ticker.StocksApp;
import com.github.premnirmal.ticker.Tools;
import com.github.premnirmal.ticker.model.IStocksProvider;
import com.github.premnirmal.ticker.network.Suggestion;
import com.github.premnirmal.ticker.network.SuggestionApi;
import com.github.premnirmal.ticker.network.Suggestions;
import com.github.premnirmal.tickerwidget.R;

import java.util.ArrayList;
import java.util.List;

import javax.inject.Inject;

import rx.Subscriber;
import rx.Subscription;
import rx.android.schedulers.AndroidSchedulers;
import rx.functions.Func1;
import rx.schedulers.Schedulers;

/**
 * Created by premnirmal on 12/21/14.
 */
public class TickerSelectorActivity extends BaseActivity {

    @Inject
    SuggestionApi suggestionApi;

    @Inject
    IStocksProvider stocksProvider;

    Subscription subscription;

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        if(item.getItemId() == android.R.id.home) {
            onBackPressed();
            return true;
        }
        return super.onOptionsItemSelected(item);
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        ((StocksApp) getApplicationContext()).inject(this);
        setContentView(R.layout.stock_search_layout);

        getSupportActionBar().setDisplayHomeAsUpEnabled(true);

        final EditText searchView = (EditText) findViewById(R.id.query);
        final ListView listView = (ListView) findViewById(R.id.resultList);

        searchView.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {

            }

            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count) {

            }

            @Override
            public void afterTextChanged(Editable s) {
                final String query = s.toString().trim().replaceAll(" ", "");
                if (!query.isEmpty()) {
                    if (subscription != null) {
                        subscription.unsubscribe();
                    }
                    if (Tools.isNetworkOnline(getApplicationContext())) {
                        subscription = suggestionApi.getSuggestions(query)
                                .observeOn(AndroidSchedulers.mainThread())
                                .subscribeOn(Schedulers.io())
                                .map(new Func1<Suggestions, List<Suggestion>>() {
                                    @Override
                                    public List<Suggestion> call(Suggestions suggestions) {
                                        return suggestions.ResultSet.Result;
                                    }
                                })
                                .subscribe(new Subscriber<List<Suggestion>>() {
                                    @Override
                                    public void onCompleted() {

                                    }

                                    @Override
                                    public void onError(Throwable throwable) {
                                        Toast.makeText(TickerSelectorActivity.this,
                                                "Error", Toast.LENGTH_SHORT);
                                    }

                                    @Override
                                    public void onNext(List<Suggestion> suggestions) {
                                        final List<Suggestion> suggestionList = suggestions;
                                        listView.setAdapter(new SuggestionsAdapter(suggestionList));
                                    }
                                });
                    } else {
                        Toast.makeText(TickerSelectorActivity.this, R.string.no_network_message, Toast.LENGTH_SHORT).show();
                    }
                }
            }
        });

        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                final SuggestionsAdapter suggestionsAdapter = (SuggestionsAdapter) parent.getAdapter();
                final Suggestion suggestion = suggestionsAdapter.getItem(position);
                final String ticker = suggestion.isStock() ? suggestion.symbol
                        : ("^" + suggestion.symbol);
                stocksProvider.addStock(ticker);
                Toast.makeText(TickerSelectorActivity.this, ticker + " added to list", Toast.LENGTH_SHORT).show();
                searchView.setText("");
                listView.setAdapter(new SuggestionsAdapter(new ArrayList<Suggestion>()));
            }
        });

    }


}
Java Source Code List
