Add JavaNet demo

Author: Luol

.idea/gradle.xml

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+/build

.idea/modules.xml

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+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 26
+    buildToolsVersion "26.0.1"
+
+    defaultConfig {
+        applicationId "com.luocj.android.javanet"
+        minSdkVersion 23
+        targetSdkVersion 26
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    compile fileTree(dir: 'libs', include: ['*.jar'])
+    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
+        exclude group: 'com.android.support', module: 'support-annotations'
+    })
+    compile 'com.android.support:appcompat-v7:26.+'
+    compile 'com.android.support.constraint:constraint-layout:1.0.2'
+    testCompile 'junit:junit:4.12'
+}

JavaNet/.gitignore

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+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in /home/luocj/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 *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

JavaNet/build.gradle

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+package com.luocj.android.javanet;
+
+import android.content.Context;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.runner.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumentation test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() throws Exception {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getTargetContext();
+
+        assertEquals("com.luocj.android.javanet", appContext.getPackageName());
+    }
+}

JavaNet/proguard-rules.pro

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.luocj.android.javanet">
+
+    <uses-permission android:name="android.permission.INTERNET"></uses-permission>
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+        <activity android:name=".JavaNetActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

JavaNet/src/androidTest/java/com/luocj/android/javanet/ExampleInstrumentedTest.java

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+package com.luocj.android.javanet;
+
+import android.content.pm.PackageManager;
+import android.os.Handler;
+import android.os.Message;
+import android.os.Parcel;
+import android.support.annotation.NonNull;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.View;
+import android.widget.Button;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.net.URL;
+import java.net.URLConnection;
+
+import static android.Manifest.permission.INTERNET;
+import static android.Manifest.permission.READ_EXTERNAL_STORAGE;
+
+public class JavaNetActivity extends AppCompatActivity {
+
+    private static final String TAG = JavaNetActivity.class.getSimpleName();
+
+    private final int PERMISSION_REQUEST_CODE_HTTPAPACHE = 1;
+    private final int MESSAGE_NETWORK_CONNECT_RESULT = 1;
+
+    private JavaNetThread mThread;
+
+    private Button mButton;
+    private TextView mTextView1;
+    private TextView mTextView2;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_java_net);
+
+
+
+        mButton = (Button) findViewById(R.id.button1);
+        mTextView1 = (TextView) findViewById(R.id.editText1);
+        mTextView2 = (TextView) findViewById(R.id.editText2);
+
+        mButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                initPermissions();
+            }
+        });
+
+    }
+
+
+    public void initPermissions() {
+        if (checkCallingOrSelfPermission(INTERNET) == PackageManager.PERMISSION_GRANTED) {
+            startNetwork();
+        } else {
+            requestPermissions(new String[]{READ_EXTERNAL_STORAGE, INTERNET}, PERMISSION_REQUEST_CODE_HTTPAPACHE);
+        }
+    }
+
+    @Override
+    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
+        switch (requestCode) {
+            case PERMISSION_REQUEST_CODE_HTTPAPACHE:
+                startNetwork();
+                break;
+            default:
+                break;
+        }
+    }
+
+    private void startNetwork() {
+        if (mThread == null) {
+            mThread = new JavaNetThread();
+        }
+        mThread.start();
+    }
+
+    class JavaNetThread extends Thread {
+        @Override
+        public void run() {
+            execute();
+        }
+    }
+
+    private void execute() {
+        String ret = "";
+        try {
+            URL url = new URL(mTextView1.getText().toString());
+            URLConnection connection = url.openConnection();
+            BufferedReader rd = new BufferedReader(new InputStreamReader(connection.getInputStream()));
+
+            String line = "";
+            while ((line = rd.readLine()) != null) {
+                ret += line;
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        Message message = mHandler.obtainMessage(MESSAGE_NETWORK_CONNECT_RESULT);
+
+        Bundle bundle = new Bundle();
+        bundle.putString("result", ret);
+        message.setData(bundle);
+        mHandler.sendMessage(message);
+    }
+
+    private Handler mHandler = new Handler() {
+        @Override
+        public void handleMessage(Message msg) {
+            switch (msg.what) {
+                case MESSAGE_NETWORK_CONNECT_RESULT:
+                    String result = (String) msg.getData().getString("result");
+                    Toast.makeText(JavaNetActivity.this, "Getnetwork OK "+ result, Toast.LENGTH_LONG).show();
+                    mTextView2.setText("");
+                    mTextView2.setText(result);
+            }
+        }
+    };
+}

JavaNet/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
+    tools:context="com.luocj.android.javanet.JavaNetActivity">
+
+    <TextView
+        android:id="@+id/textview1"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Enter URL!" />
+
+    <EditText
+        android:id="@+id/editText1"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="http://192.168.40.53/mediawiki/index.php/Dolphin-Walrus" />
+
+    <Button
+        android:id="@+id/button1"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Click" />
+
+    <EditText
+        android:id="@+id/editText2"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" />
+
+</LinearLayout>

JavaNet/src/main/java/com/luocj/android/javanet/JavaNetActivity.java

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+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="colorPrimary">#3F51B5</color>
+    <color name="colorPrimaryDark">#303F9F</color>
+    <color name="colorAccent">#FF4081</color>
+</resources>

JavaNet/src/main/res/layout/activity_java_net.xml

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+<resources>
+    <string name="app_name">JavaNet</string>
+</resources>

JavaNet/src/main/res/mipmap-hdpi/ic_launcher.png

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+<resources>
+
+    <!-- Base application theme. -->
+    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
+        <!-- Customize your theme here. -->
+        <item name="colorPrimary">@color/colorPrimary</item>
+        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+        <item name="colorAccent">@color/colorAccent</item>
+    </style>
+
+</resources>

JavaNet/src/main/res/mipmap-hdpi/ic_launcher_round.png

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+package com.luocj.android.javanet;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+public class ExampleUnitTest {
+    @Test
+    public void addition_isCorrect() throws Exception {
+        assertEquals(4, 2 + 2);
+    }
+}

JavaNet/src/main/res/mipmap-mdpi/ic_launcher.png

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-include ':app', ':HttpApache'
+include ':app', ':HttpApache', ':JavaNet'