Paina Liubov

app/build.gradle

@@ -1,8 +1,9 @@
 apply plugin: 'com.android.application'
+apply plugin: 'com.jakewharton.hugo'
 
 android {
     compileSdkVersion 23
-    buildToolsVersion "23.0.3"
+    buildToolsVersion "23.0.2"
 
     defaultConfig {
         applicationId "com.csc.colloquium1"
@@ -20,7 +21,10 @@ android {
 }
 
 dependencies {
+    compile 'com.android.support:recyclerview-v7:23.2.1'
+    compile 'com.android.support:cardview-v7:23.2.1'
+    compile 'com.android.support:appcompat-v7:23.2.1'
     compile fileTree(dir: 'libs', include: ['*.jar'])
     testCompile 'junit:junit:4.12'
-    compile 'com.android.support:appcompat-v7:23.3.0'
+
 }

app/src/main/AndroidManifest.xml

@@ -1,13 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.csc.colloquium1">
+    xmlns:tools="http://schemas.android.com/tools"
+    package="com.lpaina.colloquium1">
+
+    <uses-permission android:name="android.permission.INTERNET" />
 
     <application
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
+        <activity android:name=".MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+
+        <provider
+            android:name=".ReaderContentProvider"
+            android:authorities="com.lpaina.colloquium1"
+            android:enabled="true"
+            android:exported="false"
+            tools:ignore="ExportedContentProvider" />
 
+        <activity android:name=".ChangeActivity"></activity>
     </application>
 
 </manifest>

app/src/main/java/com/lpaina/colloquium1/Card.java

@@ -0,0 +1,41 @@
+package com.lpaina.colloquium1;
+
+public class Card implements Cloneable {
+    public static final String TITLE_NAME = "TITLE";
+    public static final String VALUE_NAME = "VALUE";
+    public static final String[] NAMES = new String[]{TITLE_NAME, VALUE_NAME};
+    private String title;
+    private String value;
+
+    public Card() {
+
+    }
+
+    public Card(String title, String value) {
+        this.title = title;
+        this.value = value;
+    }
+
+    @Override
+    protected Card clone() throws CloneNotSupportedException {
+        super.clone();
+        return new Card(title, value);
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public String getValue() {
+        return value;
+    }
+
+    public void setValue(String value) {
+        this.value = value;
+    }
+
+}

app/src/main/java/com/lpaina/colloquium1/ChangeActivity.java

@@ -0,0 +1,70 @@
+package com.lpaina.colloquium1;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.v7.app.AppCompatActivity;
+import android.text.Editable;
+import android.text.TextWatcher;
+import android.widget.EditText;
+import android.widget.TextView;
+
+public class ChangeActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_change);
+        Intent intent = getIntent();
+        String title = intent.getStringExtra(RVAdapter.CardViewHolder.TITLE);
+        String value = intent.getStringExtra(RVAdapter.CardViewHolder.VALUE);
+        final float value_float = Float.parseFloat(value.replace(",", "."));
+
+        final EditText editText1 = (EditText) findViewById(R.id.first_value);
+        final EditText editText2 = (EditText) findViewById(R.id.second_value);
+
+        TextView textView1 = (TextView) findViewById(R.id.first_title);
+        TextView textView2 = (TextView) findViewById(R.id.second_title);
+
+        editText1.setText("1");
+        editText2.setText(value);
+
+        textView1.setText("RUB");
+        textView2.setText(title);
+
+        editText1.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) {
+                float new_value = Float.parseFloat(String.valueOf(s));
+                editText2.setText(Float.toString(value_float * new_value));
+            }
+
+            @Override
+            public void afterTextChanged(Editable s) {
+
+            }
+        });
+
+        editText2.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) {
+                float new_value = Float.parseFloat(String.valueOf(s));
+                editText1.setText(Float.toString(new_value / value_float));
+            }
+
+            @Override
+            public void afterTextChanged(Editable s) {
+
+            }
+        });
+    }
+}

app/src/main/java/com/lpaina/colloquium1/MainActivity.java

@@ -0,0 +1,25 @@
+package com.lpaina.colloquium1;
+
+import android.app.Activity;
+import android.database.Cursor;
+import android.os.Bundle;
+import android.support.v7.widget.LinearLayoutManager;
+import android.support.v7.widget.RecyclerView;
+
+public class MainActivity extends Activity {
+    private static final String PATH_TO_COURSE = "http://www.cbr.ru/scripts/RssCurrency.asp";
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+        RecyclerView recyclerView = (RecyclerView) findViewById(R.id.recycler_view);
+        recyclerView.setLayoutManager(new LinearLayoutManager(this));
+
+        Cursor cursor = getContentResolver().query(ReaderContentProvider.CONTENT_URI,
+                Card.NAMES, PATH_TO_COURSE, null, null);
+
+        RVAdapter adapter = new RVAdapter(cursor);
+        recyclerView.setAdapter(adapter);
+    }
+}

app/src/main/java/com/lpaina/colloquium1/RSSParserTask.java

@@ -0,0 +1,78 @@
+package com.lpaina.colloquium1;
+
+import android.os.AsyncTask;
+import android.util.Log;
+
+import org.xmlpull.v1.XmlPullParser;
+import org.xmlpull.v1.XmlPullParserException;
+import org.xmlpull.v1.XmlPullParserFactory;
+
+import java.io.IOException;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.List;
+
+import hugo.weaving.DebugLog;
+
+class RSSParserTask extends AsyncTask<String, Void, List<Card>> {
+
+    private static final String TAG = "RSSParserTask";
+
+    @Override
+    @DebugLog
+    protected List<Card> doInBackground(String... params) {
+        String query = params[0];
+        ArrayList<Card> cards = null;
+        try {
+            URL url = new URL(query);
+
+            XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
+            factory.setNamespaceAware(false);
+            XmlPullParser parser = factory.newPullParser();
+            parser.setInput(url.openStream(), "Windows-1251");
+
+            cards = new ArrayList<>();
+            boolean started = false;
+            String info = null;
+            int eventType = parser.getEventType();
+            while (eventType != XmlPullParser.END_DOCUMENT) {
+                if (eventType == XmlPullParser.START_TAG) {
+                    String name = parser.getName().toLowerCase();
+                    switch (name) {
+                        case "item":
+                            started = true;
+                            break;
+                        case "description":
+                            if (started) {
+                                info = parser.nextText();
+                            }
+                            break;
+                    }
+                } else if (eventType == XmlPullParser.END_TAG && parser.getName().equalsIgnoreCase("item")) {
+                    started = false;
+                    String[] strings = info.split("<br>");
+                    for (String string : strings) {
+                        String[] values = string.split("-");
+                        cards.add(new Card(values[0].trim(), values[1].trim()));
+                    }
+                }
+
+                eventType = parser.next(); //move to next element
+            }
+
+        } catch (XmlPullParserException | IOException e) {
+            Log.e(TAG, "doInBackground: ", e);
+        }
+
+        Collections.sort(cards, new Comparator<Card>() {
+            @Override
+            public int compare(Card lhs, Card rhs) {
+                return lhs.getTitle().compareTo(rhs.getTitle());
+            }
+        });
+        return cards;
+    }
+
+}

app/src/main/java/com/lpaina/colloquium1/RVAdapter.java

@@ -0,0 +1,85 @@
+package com.lpaina.colloquium1;
+
+import android.content.Context;
+import android.content.Intent;
+import android.database.Cursor;
+import android.support.v7.widget.CardView;
+import android.support.v7.widget.RecyclerView;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+public class RVAdapter extends RecyclerView.Adapter<RVAdapter.CardViewHolder> {
+
+    private Cursor cursor;
+
+    public RVAdapter(Cursor cursor) {
+        this.cursor = cursor;
+    }
+
+    public void updateCursor(Cursor newCursor) {
+        if (cursor != null) {
+            cursor.close();
+        }
+        cursor = newCursor;
+    }
+
+    @Override
+    public int getItemCount() {
+        return cursor.getCount();
+    }
+
+    @Override
+    public CardViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
+        View view = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.recyclerview_item, viewGroup, false);
+        return new CardViewHolder(view);
+    }
+
+    @Override
+    public void onBindViewHolder(CardViewHolder cardViewHolder, int i) {
+        if (cursor.moveToPosition(i)) {
+            cardViewHolder.title = cursor.getString(cursor.getColumnIndex(Card.TITLE_NAME));
+            cardViewHolder.value = cursor.getString(cursor.getColumnIndex(Card.VALUE_NAME));
+
+            cardViewHolder.textViewTitle.setText(cardViewHolder.title);
+            cardViewHolder.textViewValue.setText(cardViewHolder.value);
+
+        }
+    }
+
+    public static class CardViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
+        public static final String TITLE = "title";
+        public static final String VALUE = "value";
+
+
+        final TextView textViewTitle;
+        final TextView textViewValue;
+        final CardView cardView;
+
+        final Context context;
+
+        int id;
+        String title;
+        String value;
+
+        CardViewHolder(View itemView) {
+            super(itemView);
+            textViewTitle = (TextView) itemView.findViewById(R.id.title);
+            textViewValue = (TextView) itemView.findViewById(R.id.value);
+            cardView = (CardView) itemView.findViewById(R.id.card_view);
+            cardView.setOnClickListener(this);
+            context = itemView.getContext();
+        }
+
+        @Override
+        public void onClick(View v) {
+            Intent intent = new Intent(context, ChangeActivity.class);
+            intent.putExtra(TITLE, title);
+            intent.putExtra(VALUE, value);
+            context.startActivity(intent);
+        }
+
+    }
+
+}