Add files via upload

This commit is contained in:
2017-10-05 15:23:51 +01:00
committed by GitHub
parent f478affe76
commit 62b6fb2ed5

View File

@@ -1,312 +1,323 @@
package com.example.haimalik.myapplication;
import android.net.Uri;
import android.os.AsyncTask;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextUtils;
import android.text.TextWatcher;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.AdapterView.OnItemSelectedListener;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.nio.charset.Charset;
import java.text.DecimalFormat;
public class MainActivity extends AppCompatActivity {
EditText currencyOneEditText;
EditText currencyTwoEditText;
Spinner spinnerTop;
Spinner spinnerBottom;
double conversionRateOne;
private String URL = "https://free.currencyconverterapi.com/api/v3/convert?";
private static final String LOG_TAG = MainActivity.class.getSimpleName();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
currencyOneEditText = (EditText) findViewById(R.id.editText);
currencyTwoEditText = (EditText) findViewById(R.id.editText2);
currencyOneEditText.addTextChangedListener(TextWatcherClass);
currencyTwoEditText.addTextChangedListener(TextWatcherClass2);
addListenerOnSpinnerItemSelection();
String stringURL = UriBuilder();
MyAsyncTask task = new MyAsyncTask();
task.execute(stringURL);
}
private TextWatcher TextWatcherClass = new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before,
int count) {
currencyTwoEditText.removeTextChangedListener(TextWatcherClass2);
if(currencyOneEditText.getText().toString().isEmpty()){
currencyTwoEditText.setText("");
return;
}
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
}
@Override
public void afterTextChanged(Editable s) {
try{
Double topValue = Double.parseDouble(currencyOneEditText.getText().toString());
Double bottomValue = topValue * conversionRateOne;
DecimalFormat df = new DecimalFormat("#.##");
bottomValue = Double.valueOf(df.format(bottomValue));
currencyTwoEditText.setText(bottomValue.toString());
}
catch (NumberFormatException e){
Log.e(LOG_TAG, "no numbers inserted");
}
currencyTwoEditText.addTextChangedListener(TextWatcherClass2);
}
};
private TextWatcher TextWatcherClass2 = new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before,
int count) {
currencyOneEditText.removeTextChangedListener(TextWatcherClass);
if(currencyTwoEditText.getText().toString().isEmpty()){
currencyOneEditText.setText("");
}
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
}
@Override
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));
currencyOneEditText.setText(topValue.toString());
}
catch (NumberFormatException e){
Log.e(LOG_TAG, "no numbers inserted");
}
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 onPostExecute(Double result) {
super.onPostExecute(result);
conversionRateOne = result;
}
}
package com.example.haimalik.myapplication;
import android.net.Uri;
import android.os.AsyncTask;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextUtils;
import android.text.TextWatcher;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.EditText;
import android.widget.ProgressBar;
import android.widget.Spinner;
import android.widget.AdapterView.OnItemSelectedListener;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.nio.charset.Charset;
import java.text.DecimalFormat;
public class MainActivity extends AppCompatActivity {
EditText currencyOneEditText;
EditText currencyTwoEditText;
Spinner spinnerTop;
Spinner spinnerBottom;
double conversionRateOne;
ProgressBar spinner;
private String URL = "https://free.currencyconverterapi.com/api/v3/convert?";
private static final String LOG_TAG = MainActivity.class.getSimpleName();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
currencyOneEditText = (EditText) findViewById(R.id.editText);
currencyTwoEditText = (EditText) findViewById(R.id.editText2);
currencyOneEditText.addTextChangedListener(TextWatcherClass);
currencyTwoEditText.addTextChangedListener(TextWatcherClass2);
spinner = (ProgressBar) findViewById(R.id.progressBar);
spinner.setVisibility(View.GONE);
addListenerOnSpinnerItemSelection();
String stringURL = UriBuilder();
MyAsyncTask task = new MyAsyncTask();
task.execute(stringURL);
}
private TextWatcher TextWatcherClass = new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before,
int count) {
currencyTwoEditText.removeTextChangedListener(TextWatcherClass2);
if(currencyOneEditText.getText().toString().isEmpty()){
currencyTwoEditText.setText("");
return;
}
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
}
@Override
public void afterTextChanged(Editable s) {
try{
Double topValue = Double.parseDouble(currencyOneEditText.getText().toString());
Double bottomValue = topValue * conversionRateOne;
DecimalFormat df = new DecimalFormat("#.##");
bottomValue = Double.valueOf(df.format(bottomValue));
currencyTwoEditText.setText(bottomValue.toString());
}
catch (NumberFormatException e){
Log.e(LOG_TAG, "no numbers inserted");
}
currencyTwoEditText.addTextChangedListener(TextWatcherClass2);
}
};
private TextWatcher TextWatcherClass2 = new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before,
int count) {
currencyOneEditText.removeTextChangedListener(TextWatcherClass);
if(currencyTwoEditText.getText().toString().isEmpty()){
currencyOneEditText.setText("");
}
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
}
@Override
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));
currencyOneEditText.setText(topValue.toString());
}
catch (NumberFormatException e){
Log.e(LOG_TAG, "no numbers inserted");
}
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);
}
}
}