Mike Kwon networking lab + bonus

NetworkingLab/.gitignore

@@ -0,0 +1,8 @@
+*.iml
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures

NetworkingLab/app/.gitignore

@@ -0,0 +1 @@
+/build

NetworkingLab/app/build.gradle

@@ -0,0 +1,26 @@
+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 23
+    buildToolsVersion "23.0.2"
+
+    defaultConfig {
+        applicationId "com.example.todo.networkinglab"
+        minSdkVersion 16
+        targetSdkVersion 23
+        versionCode 1
+        versionName "1.0"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    compile fileTree(dir: 'libs', include: ['*.jar'])
+    testCompile 'junit:junit:4.12'
+    compile 'com.android.support:appcompat-v7:23.1.1'
+}

NetworkingLab/app/proguard-rules.pro

@@ -0,0 +1,17 @@
+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in C:\Users\Todo\AppData\Local\Android\sdk/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the proguardFiles
+# directive in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}

NetworkingLab/app/src/androidTest/java/com/example/todo/networkinglab/ApplicationTest.java

@@ -0,0 +1,13 @@
+package com.example.todo.networkinglab;
+
+import android.app.Application;
+import android.test.ApplicationTestCase;
+
+/**
+ * <a href="http://d.android.com/tools/testing/testing_android.html">Testing Fundamentals</a>
+ */
+public class ApplicationTest extends ApplicationTestCase<Application> {
+    public ApplicationTest() {
+        super(Application.class);
+    }
+}

NetworkingLab/app/src/main/AndroidManifest.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.example.todo.networkinglab">
+
+    <uses-permission android:name="android.permission.INTERNET"/>
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
+
+    <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>
+    </application>
+
+</manifest>

NetworkingLab/app/src/main/java/com/example/todo/networkinglab/MainActivity.java

@@ -0,0 +1,134 @@
+package com.example.todo.networkinglab;
+
+import android.content.Context;
+import android.net.ConnectivityManager;
+import android.net.NetworkInfo;
+import android.os.AsyncTask;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.ArrayAdapter;
+import android.widget.Button;
+import android.widget.ListView;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import org.json.JSONArray;
+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.HttpURLConnection;
+import java.net.URL;
+import java.util.ArrayList;
+
+public class MainActivity extends AppCompatActivity {
+    Button mCerealButton, mChocolateButton, mTeaButton;
+    String mTeaString = "http://api.walmartlabs.com/v1/search?apiKey=wg9r9j94m37sy5e7whn7yy3m&format=json&query=Tea";
+    String mCerealString = "http://api.walmartlabs.com/v1/search?apiKey=wg9r9j94m37sy5e7whn7yy3m&format=json&query=Cereal";
+    String mChocolateString = "http://api.walmartlabs.com/v1/search?apiKey=wg9r9j94m37sy5e7whn7yy3m&format=json&query=Chocolate";
+    ListView mListView;
+    ArrayAdapter<String> mAdapter;
+    ArrayList<String> mArrayList;
+    DownloadTask mTask;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+
+        mCerealButton = (Button) findViewById(R.id.xmlCerealButton);
+        mChocolateButton = (Button) findViewById(R.id.xmlChocolateButton);
+        mTeaButton = (Button) findViewById(R.id.xmlTeaButton);
+        mListView = (ListView) findViewById(R.id.xmlListView);
+        mArrayList = new ArrayList<>();
+        mAdapter = new ArrayAdapter<String>(MainActivity.this,android.R.layout.simple_list_item_1,mArrayList);
+        mListView.setAdapter(mAdapter);
+        mTask = new DownloadTask();
+
+        mCerealButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                ConnectivityManager manager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
+                NetworkInfo info = manager.getActiveNetworkInfo();
+                if (info != null && info.isConnected()) {
+                    if(mTask.getStatus()== AsyncTask.Status.RUNNING){mTask.cancel(true);}
+                    mTask = new DownloadTask();
+                    mTask.execute(mCerealString);
+                } else {
+                    Toast.makeText(MainActivity.this, "Check Network connection", Toast.LENGTH_SHORT).show();
+                }
+            }
+        });
+        mChocolateButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                ConnectivityManager manager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
+                NetworkInfo info = manager.getActiveNetworkInfo();
+                if (info != null && info.isConnected()) {
+                    if(mTask.getStatus()== AsyncTask.Status.RUNNING){mTask.cancel(true);}
+                    mTask = new DownloadTask();
+                    mTask.execute(mChocolateString);
+                } else {
+                    Toast.makeText(MainActivity.this, "Check Network connection", Toast.LENGTH_SHORT).show();
+                }
+            }
+        });
+        mTeaButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                ConnectivityManager manager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
+                NetworkInfo info = manager.getActiveNetworkInfo();
+                if (info != null && info.isConnected()) {
+                    if(mTask.getStatus()== AsyncTask.Status.RUNNING){mTask.cancel(true);}
+                    mTask = new DownloadTask();
+                    mTask.execute(mTeaString);
+                } else {
+                    Toast.makeText(MainActivity.this, "Check Network connection", Toast.LENGTH_SHORT).show();
+                }
+            }
+        });
+    }
+
+    public class DownloadTask extends AsyncTask<String,Void,Void>{
+        @Override
+        protected Void doInBackground(String... urls) {
+            InputStream is;
+            try {
+                mArrayList.clear();
+                URL url = new URL(urls[0]);
+                HttpURLConnection conn = (HttpURLConnection) url.openConnection();
+                conn.setRequestMethod("GET");
+                conn.setDoInput(true);
+                conn.connect();
+                is = conn.getInputStream();
+                StringBuilder sb = new StringBuilder();
+                BufferedReader br = new BufferedReader(new InputStreamReader(is));
+                String contentAsString;
+                while((contentAsString = br.readLine()) != null) {sb.append(contentAsString);}
+                contentAsString = sb.toString();
+                sb.setLength(0);
+                JSONObject object = new JSONObject(contentAsString);
+                JSONArray array = object.optJSONArray("items");
+                for (int i = 0; i < array.length(); i++){
+                    JSONObject repo = array.getJSONObject(i);
+                    String productName = repo.getString("name");
+                    String productPrice = repo.optString("salePrice");
+                    sb.append(productName + " $" + productPrice);
+                    mArrayList.add(sb.toString());
+                    sb.setLength(0);}
+            } catch (Throwable e){
+                e.printStackTrace();}
+            return null;
+        }
+
+        @Override
+        protected void onPostExecute(Void s) {
+            super.onPostExecute(s);
+            mAdapter.notifyDataSetChanged();
+        }
+    }
+}