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@@ -1,312 +1,323 @@
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package com.example.haimalik.myapplication;
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import android.net.Uri;
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import android.os.AsyncTask;
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import android.support.v7.app.AppCompatActivity;
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import android.os.Bundle;
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import android.text.Editable;
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import android.text.TextUtils;
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import android.text.TextWatcher;
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import android.util.Log;
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import android.view.View;
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import android.widget.AdapterView;
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import android.widget.EditText;
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import android.widget.Spinner;
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import android.widget.AdapterView.OnItemSelectedListener;
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import org.json.JSONException;
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import org.json.JSONObject;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.net.URL;
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import java.net.HttpURLConnection;
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import java.net.MalformedURLException;
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import java.nio.charset.Charset;
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import java.text.DecimalFormat;
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public class MainActivity extends AppCompatActivity {
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EditText currencyOneEditText;
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EditText currencyTwoEditText;
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Spinner spinnerTop;
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Spinner spinnerBottom;
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double conversionRateOne;
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private String URL = "https://free.currencyconverterapi.com/api/v3/convert?";
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private static final String LOG_TAG = MainActivity.class.getSimpleName();
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_main);
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currencyOneEditText = (EditText) findViewById(R.id.editText);
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currencyTwoEditText = (EditText) findViewById(R.id.editText2);
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currencyOneEditText.addTextChangedListener(TextWatcherClass);
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currencyTwoEditText.addTextChangedListener(TextWatcherClass2);
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addListenerOnSpinnerItemSelection();
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String stringURL = UriBuilder();
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MyAsyncTask task = new MyAsyncTask();
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task.execute(stringURL);
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}
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private TextWatcher TextWatcherClass = new TextWatcher() {
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@Override
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public void onTextChanged(CharSequence s, int start, int before,
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int count) {
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currencyTwoEditText.removeTextChangedListener(TextWatcherClass2);
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if(currencyOneEditText.getText().toString().isEmpty()){
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currencyTwoEditText.setText("");
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return;
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}
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}
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@Override
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public void beforeTextChanged(CharSequence s, int start, int count,
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int after) {
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}
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@Override
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public void afterTextChanged(Editable s) {
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try{
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Double topValue = Double.parseDouble(currencyOneEditText.getText().toString());
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Double bottomValue = topValue * conversionRateOne;
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DecimalFormat df = new DecimalFormat("#.##");
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bottomValue = Double.valueOf(df.format(bottomValue));
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currencyTwoEditText.setText(bottomValue.toString());
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}
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catch (NumberFormatException e){
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Log.e(LOG_TAG, "no numbers inserted");
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}
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currencyTwoEditText.addTextChangedListener(TextWatcherClass2);
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}
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};
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private TextWatcher TextWatcherClass2 = new TextWatcher() {
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@Override
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public void onTextChanged(CharSequence s, int start, int before,
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int count) {
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currencyOneEditText.removeTextChangedListener(TextWatcherClass);
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if(currencyTwoEditText.getText().toString().isEmpty()){
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currencyOneEditText.setText("");
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}
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}
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@Override
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public void beforeTextChanged(CharSequence s, int start, int count,
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int after) {
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}
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@Override
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public void afterTextChanged(Editable s) {
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try{
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Double bottomValue = Double.parseDouble(currencyTwoEditText.getText().toString());
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Double topValue = bottomValue * (1 / conversionRateOne);
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DecimalFormat df = new DecimalFormat("#.##");
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topValue = Double.valueOf(df.format(topValue));
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currencyOneEditText.setText(topValue.toString());
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}
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catch (NumberFormatException e){
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Log.e(LOG_TAG, "no numbers inserted");
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}
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currencyOneEditText.addTextChangedListener(TextWatcherClass);
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}
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};
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public void addListenerOnSpinnerItemSelection() {
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spinnerTop = (Spinner) findViewById(R.id.spinner1);
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spinnerTop.setOnItemSelectedListener(new OnItemSelectedListener() {
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@Override
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public void onItemSelected(AdapterView<?> parentView, View selectedItemView, int pos, long id) {
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String currencyOne = parentView.getItemAtPosition(pos).toString();
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currencyTwoEditText.setText("");
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currencyOneEditText.setText("");
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currencyOneEditText.setHint("insert " + currencyOne);
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String stringURL = UriBuilder();
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MyAsyncTask task = new MyAsyncTask();
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task.execute(stringURL);
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}
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@Override
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public void onNothingSelected(AdapterView<?> parentView) {
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// your code here
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}
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});
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spinnerBottom = (Spinner) findViewById(R.id.spinner2);
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spinnerBottom.setOnItemSelectedListener(new OnItemSelectedListener() {
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@Override
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public void onItemSelected(AdapterView<?> parentView, View selectedItemView, int pos, long id) {
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String currencyTwo = parentView.getItemAtPosition(pos).toString();
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currencyOneEditText.setText("");
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currencyTwoEditText.setText("");
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currencyTwoEditText.setHint("insert " + currencyTwo);
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String stringURL = UriBuilder();
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MyAsyncTask task = new MyAsyncTask();
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task.execute(stringURL);
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}
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@Override
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public void onNothingSelected(AdapterView<?> parentView) {
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// your code here
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}
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});
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}
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private String UriBuilder(){
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String currencyOne = spinnerTop.getSelectedItem().toString();
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String currencyTwo = spinnerBottom.getSelectedItem().toString();
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Uri baseUri = Uri.parse(URL);
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Uri.Builder builder = baseUri.buildUpon();
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builder.appendQueryParameter("q", currencyOne + "_" + currencyTwo).appendQueryParameter("compact", "ultra");
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return builder.build().toString();
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}
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private static URL createUrl(String stringUrl) {
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URL url = null;
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try {
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url = new URL(stringUrl);
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} catch (MalformedURLException e) {
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Log.e(LOG_TAG, "Error with creating URL ", e);
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}
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return url;
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}
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private static String makeHttpRequest(URL url) throws IOException {
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String jsonResponse = "";
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if (url == null) {
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return jsonResponse;
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}
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HttpURLConnection urlConnection = null;
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InputStream inputStream = null;
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try {
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urlConnection = (HttpURLConnection) url.openConnection();
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urlConnection.setReadTimeout(30000);
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urlConnection.setConnectTimeout(30000);
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urlConnection.setRequestMethod("GET");
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urlConnection.connect();
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if (urlConnection.getResponseCode() == 200) {
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inputStream = urlConnection.getInputStream();
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jsonResponse = readFromStream(inputStream);
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} else {
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Log.e(LOG_TAG, "Error response code: " + urlConnection.getResponseCode());
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}
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} catch (IOException e) {
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Log.e(LOG_TAG, "Problem retrieving the JSON results.", e);
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} finally {
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if (urlConnection != null) {
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urlConnection.disconnect();
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}
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if (inputStream != null) {
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inputStream.close();
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}
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}
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return jsonResponse;
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}
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private static String readFromStream(InputStream inputStream) throws IOException {
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StringBuilder output = new StringBuilder();
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if (inputStream != null) {
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InputStreamReader inputStreamReader = new InputStreamReader(inputStream, Charset.forName("UTF-8"));
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BufferedReader reader = new BufferedReader(inputStreamReader);
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String line = "";
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while (line != null) {
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output.append(line);
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line = reader.readLine();
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}
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}
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Log.d(LOG_TAG, output.toString());
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return output.toString();
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}
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private double extractFeatureFromJson(String newsJSON) {
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double conversionValue = 0.00;
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String currencyOne = spinnerTop.getSelectedItem().toString();
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String currencyTwo = spinnerBottom.getSelectedItem().toString();
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if (TextUtils.isEmpty(newsJSON)) {
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return 0.00;
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}
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try {
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JSONObject jObject = new JSONObject(newsJSON);
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conversionValue = jObject.getDouble(currencyOne + "_" + currencyTwo);
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} catch (JSONException e) {
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Log.e("MainActivity", "Problem parsing the JSON results", e);
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}
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return conversionValue;
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}
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private class MyAsyncTask extends AsyncTask<String, Void, Double> {
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@Override
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protected Double doInBackground(String... urlString) {
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String jsonResponse = null;
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if (urlString.length < 1 || urlString[0] == null) {
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return null;
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}
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try {
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URL url = createUrl(urlString[0]);
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jsonResponse = makeHttpRequest(url);
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} catch (IOException e) {
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Log.e(LOG_TAG, "Problem making the HTTP request.", e);
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}
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return extractFeatureFromJson(jsonResponse);
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}
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@Override
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protected void onPostExecute(Double result) {
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super.onPostExecute(result);
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conversionRateOne = result;
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}
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}
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package com.example.haimalik.myapplication;
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import android.net.Uri;
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import android.os.AsyncTask;
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import android.support.v7.app.AppCompatActivity;
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import android.os.Bundle;
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import android.text.Editable;
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import android.text.TextUtils;
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import android.text.TextWatcher;
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import android.util.Log;
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import android.view.View;
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import android.widget.AdapterView;
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import android.widget.EditText;
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import android.widget.ProgressBar;
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import android.widget.Spinner;
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import android.widget.AdapterView.OnItemSelectedListener;
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import org.json.JSONException;
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import org.json.JSONObject;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.net.URL;
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import java.net.HttpURLConnection;
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import java.net.MalformedURLException;
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import java.nio.charset.Charset;
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import java.text.DecimalFormat;
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public class MainActivity extends AppCompatActivity {
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EditText currencyOneEditText;
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EditText currencyTwoEditText;
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Spinner spinnerTop;
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Spinner spinnerBottom;
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double conversionRateOne;
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ProgressBar spinner;
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private String URL = "https://free.currencyconverterapi.com/api/v3/convert?";
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private static final String LOG_TAG = MainActivity.class.getSimpleName();
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_main);
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currencyOneEditText = (EditText) findViewById(R.id.editText);
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currencyTwoEditText = (EditText) findViewById(R.id.editText2);
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currencyOneEditText.addTextChangedListener(TextWatcherClass);
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currencyTwoEditText.addTextChangedListener(TextWatcherClass2);
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spinner = (ProgressBar) findViewById(R.id.progressBar);
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spinner.setVisibility(View.GONE);
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addListenerOnSpinnerItemSelection();
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String stringURL = UriBuilder();
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MyAsyncTask task = new MyAsyncTask();
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task.execute(stringURL);
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}
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private TextWatcher TextWatcherClass = new TextWatcher() {
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@Override
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public void onTextChanged(CharSequence s, int start, int before,
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int count) {
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currencyTwoEditText.removeTextChangedListener(TextWatcherClass2);
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if(currencyOneEditText.getText().toString().isEmpty()){
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currencyTwoEditText.setText("");
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return;
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}
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}
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@Override
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public void beforeTextChanged(CharSequence s, int start, int count,
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int after) {
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}
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@Override
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public void afterTextChanged(Editable s) {
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try{
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Double topValue = Double.parseDouble(currencyOneEditText.getText().toString());
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Double bottomValue = topValue * conversionRateOne;
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DecimalFormat df = new DecimalFormat("#.##");
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bottomValue = Double.valueOf(df.format(bottomValue));
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currencyTwoEditText.setText(bottomValue.toString());
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}
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catch (NumberFormatException e){
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Log.e(LOG_TAG, "no numbers inserted");
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}
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currencyTwoEditText.addTextChangedListener(TextWatcherClass2);
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}
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};
|
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private TextWatcher TextWatcherClass2 = new TextWatcher() {
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|
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@Override
|
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public void onTextChanged(CharSequence s, int start, int before,
|
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int count) {
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currencyOneEditText.removeTextChangedListener(TextWatcherClass);
|
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if(currencyTwoEditText.getText().toString().isEmpty()){
|
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currencyOneEditText.setText("");
|
||||
}
|
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}
|
||||
|
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@Override
|
||||
public void beforeTextChanged(CharSequence s, int start, int count,
|
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int after) {
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||||
}
|
||||
|
||||
@Override
|
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public void afterTextChanged(Editable s) {
|
||||
|
||||
try{
|
||||
|
||||
Double bottomValue = Double.parseDouble(currencyTwoEditText.getText().toString());
|
||||
Double topValue = bottomValue * (1 / conversionRateOne);
|
||||
DecimalFormat df = new DecimalFormat("#.##");
|
||||
topValue = Double.valueOf(df.format(topValue));
|
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currencyOneEditText.setText(topValue.toString());
|
||||
|
||||
|
||||
}
|
||||
catch (NumberFormatException e){
|
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Log.e(LOG_TAG, "no numbers inserted");
|
||||
}
|
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currencyOneEditText.addTextChangedListener(TextWatcherClass);
|
||||
}
|
||||
|
||||
};
|
||||
|
||||
public void addListenerOnSpinnerItemSelection() {
|
||||
spinnerTop = (Spinner) findViewById(R.id.spinner1);
|
||||
spinnerTop.setOnItemSelectedListener(new OnItemSelectedListener() {
|
||||
@Override
|
||||
public void onItemSelected(AdapterView<?> parentView, View selectedItemView, int pos, long id) {
|
||||
String currencyOne = parentView.getItemAtPosition(pos).toString();
|
||||
currencyTwoEditText.setText("");
|
||||
currencyOneEditText.setText("");
|
||||
currencyOneEditText.setHint("insert " + currencyOne);
|
||||
|
||||
String stringURL = UriBuilder();
|
||||
MyAsyncTask task = new MyAsyncTask();
|
||||
task.execute(stringURL);
|
||||
|
||||
}
|
||||
|
||||
@Override
|
||||
public void onNothingSelected(AdapterView<?> parentView) {
|
||||
// your code here
|
||||
}
|
||||
|
||||
});
|
||||
|
||||
spinnerBottom = (Spinner) findViewById(R.id.spinner2);
|
||||
spinnerBottom.setOnItemSelectedListener(new OnItemSelectedListener() {
|
||||
@Override
|
||||
public void onItemSelected(AdapterView<?> parentView, View selectedItemView, int pos, long id) {
|
||||
String currencyTwo = parentView.getItemAtPosition(pos).toString();
|
||||
currencyOneEditText.setText("");
|
||||
currencyTwoEditText.setText("");
|
||||
currencyTwoEditText.setHint("insert " + currencyTwo);
|
||||
|
||||
String stringURL = UriBuilder();
|
||||
MyAsyncTask task = new MyAsyncTask();
|
||||
task.execute(stringURL);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void onNothingSelected(AdapterView<?> parentView) {
|
||||
// your code here
|
||||
}
|
||||
|
||||
});
|
||||
|
||||
}
|
||||
|
||||
private String UriBuilder(){
|
||||
String currencyOne = spinnerTop.getSelectedItem().toString();
|
||||
String currencyTwo = spinnerBottom.getSelectedItem().toString();
|
||||
|
||||
Uri baseUri = Uri.parse(URL);
|
||||
Uri.Builder builder = baseUri.buildUpon();
|
||||
builder.appendQueryParameter("q", currencyOne + "_" + currencyTwo).appendQueryParameter("compact", "ultra");
|
||||
|
||||
return builder.build().toString();
|
||||
|
||||
}
|
||||
|
||||
private static URL createUrl(String stringUrl) {
|
||||
URL url = null;
|
||||
try {
|
||||
url = new URL(stringUrl);
|
||||
} catch (MalformedURLException e) {
|
||||
Log.e(LOG_TAG, "Error with creating URL ", e);
|
||||
}
|
||||
return url;
|
||||
}
|
||||
|
||||
|
||||
private static String makeHttpRequest(URL url) throws IOException {
|
||||
String jsonResponse = "";
|
||||
|
||||
if (url == null) {
|
||||
return jsonResponse;
|
||||
}
|
||||
|
||||
HttpURLConnection urlConnection = null;
|
||||
InputStream inputStream = null;
|
||||
try {
|
||||
urlConnection = (HttpURLConnection) url.openConnection();
|
||||
urlConnection.setReadTimeout(30000);
|
||||
urlConnection.setConnectTimeout(30000);
|
||||
urlConnection.setRequestMethod("GET");
|
||||
urlConnection.connect();
|
||||
|
||||
if (urlConnection.getResponseCode() == 200) {
|
||||
inputStream = urlConnection.getInputStream();
|
||||
jsonResponse = readFromStream(inputStream);
|
||||
} else {
|
||||
Log.e(LOG_TAG, "Error response code: " + urlConnection.getResponseCode());
|
||||
}
|
||||
} catch (IOException e) {
|
||||
Log.e(LOG_TAG, "Problem retrieving the JSON results.", e);
|
||||
} finally {
|
||||
if (urlConnection != null) {
|
||||
urlConnection.disconnect();
|
||||
}
|
||||
if (inputStream != null) {
|
||||
inputStream.close();
|
||||
}
|
||||
}
|
||||
return jsonResponse;
|
||||
}
|
||||
|
||||
private static String readFromStream(InputStream inputStream) throws IOException {
|
||||
StringBuilder output = new StringBuilder();
|
||||
if (inputStream != null) {
|
||||
InputStreamReader inputStreamReader = new InputStreamReader(inputStream, Charset.forName("UTF-8"));
|
||||
BufferedReader reader = new BufferedReader(inputStreamReader);
|
||||
String line = "";
|
||||
while (line != null) {
|
||||
output.append(line);
|
||||
line = reader.readLine();
|
||||
}
|
||||
}
|
||||
Log.d(LOG_TAG, output.toString());
|
||||
return output.toString();
|
||||
|
||||
}
|
||||
|
||||
private double extractFeatureFromJson(String newsJSON) {
|
||||
double conversionValue = 0.00;
|
||||
String currencyOne = spinnerTop.getSelectedItem().toString();
|
||||
String currencyTwo = spinnerBottom.getSelectedItem().toString();
|
||||
|
||||
if (TextUtils.isEmpty(newsJSON)) {
|
||||
return 0.00;
|
||||
}
|
||||
|
||||
try {
|
||||
JSONObject jObject = new JSONObject(newsJSON);
|
||||
conversionValue = jObject.getDouble(currencyOne + "_" + currencyTwo);
|
||||
|
||||
} catch (JSONException e) {
|
||||
|
||||
Log.e("MainActivity", "Problem parsing the JSON results", e);
|
||||
}
|
||||
return conversionValue;
|
||||
}
|
||||
|
||||
private class MyAsyncTask extends AsyncTask<String, Void, Double> {
|
||||
|
||||
@Override
|
||||
protected Double doInBackground(String... urlString) {
|
||||
String jsonResponse = null;
|
||||
|
||||
if (urlString.length < 1 || urlString[0] == null) {
|
||||
return null;
|
||||
}
|
||||
try {
|
||||
URL url = createUrl(urlString[0]);
|
||||
jsonResponse = makeHttpRequest(url);
|
||||
|
||||
} catch (IOException e) {
|
||||
Log.e(LOG_TAG, "Problem making the HTTP request.", e);
|
||||
}
|
||||
|
||||
|
||||
return extractFeatureFromJson(jsonResponse);
|
||||
|
||||
}
|
||||
|
||||
@Override
|
||||
protected void onPreExecute() {
|
||||
super.onPreExecute();
|
||||
spinner.setVisibility(View.VISIBLE);
|
||||
}
|
||||
|
||||
@Override
|
||||
protected void onPostExecute(Double result) {
|
||||
super.onPostExecute(result);
|
||||
|
||||
conversionRateOne = result;
|
||||
spinner.setVisibility(View.GONE);
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
Reference in New Issue
Block a user