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hmkcodehmkcode
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post-json
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10 files changed

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‎android-http/build.gradle

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@@ -8,7 +8,7 @@ buildscript {
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}
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dependencies {
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classpath 'com.android.tools.build:gradle:3.5.0'
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classpath 'com.android.tools.build:gradle:3.5.1'
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classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
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// NOTE: Do not place your application dependencies here; they belong
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// in the individual module build.gradle files

‎android-http/post-json/build.gradle

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apply plugin: 'com.android.application'
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apply plugin: 'kotlin-android'
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apply plugin: 'kotlin-android-extensions'
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android {
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compileSdkVersion 29
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buildToolsVersion "29.0.2"
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defaultConfig {
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applicationId "com.hmkcodes"
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minSdkVersion 19
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targetSdkVersion 29
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versionCode 1
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versionName "1.0"
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testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
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}
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buildTypes {
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release {
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minifyEnabled false
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proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
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}
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}
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}
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dependencies {
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implementation fileTree(dir: 'libs', include: ['*.jar'])
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implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
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implementation 'androidx.appcompat:appcompat:1.1.0'
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implementation 'com.google.android.material:material:1.1.0-beta01'
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implementation 'androidx.core:core-ktx:1.1.0'
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implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
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implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.2"
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implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.2"
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implementation "androidx.lifecycle:lifecycle-runtime-ktx:2.2.0-alpha05"
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testImplementation 'junit:junit:4.12'
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androidTestImplementation 'androidx.test.ext:junit:1.1.0'
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androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
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}

‎android-http/post-json/src/main/AndroidManifest.xml

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

‎android-http/post-json/src/main/java/com/hmkcode/MainActivity.kt

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package com.hmkcode
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import android.content.Context
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import android.net.ConnectivityManager
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import androidx.appcompat.app.AppCompatActivity
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import android.os.Bundle
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import android.util.Log
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import android.view.View
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import android.widget.EditText
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import android.widget.TextView
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import android.widget.Toast
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import androidx.lifecycle.lifecycleScope
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import kotlinx.coroutines.Dispatchers
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import kotlinx.coroutines.launch
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import kotlinx.coroutines.withContext
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import org.json.JSONException
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import org.json.JSONObject
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import java.io.BufferedWriter
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import java.io.IOException
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import java.io.OutputStreamWriter
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import java.net.HttpURLConnection
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import java.net.URL
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import javax.net.ssl.HttpsURLConnection
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class MainActivity : AppCompatActivity() {
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lateinit var tvIsConnected: TextView
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lateinit var etTitle: EditText
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lateinit var etUrl: EditText
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lateinit var etTags: EditText
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lateinit var tvResult: TextView
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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setContentView(R.layout.activity_main)
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tvIsConnected = findViewById<TextView>(R.id.tvIsConnected)
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etTitle = findViewById<EditText>(R.id.etTitle)
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etUrl = findViewById<EditText>(R.id.etUrl)
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etTags = findViewById<EditText>(R.id.etTags)
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tvResult = findViewById<TextView>(R.id.tvResult)
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checkNetworkConnection()
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}
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public fun send(view:View) {
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Toast.makeText(this, "Clicked", Toast.LENGTH_SHORT).show()
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// clear text result
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tvResult.setText("")
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if (checkNetworkConnection())
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lifecycleScope.launch {
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val result = httpPost("https://hmkcode-api.appspot.com/rest/link/add")
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tvResult.setText(result)
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}
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else
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Toast.makeText(this, "Not Connected!", Toast.LENGTH_SHORT).show()
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}
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@Throws(IOException::class, JSONException::class)
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private suspend fun httpPost(myUrl: String): String {
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val result = withContext(Dispatchers.IO) {
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val url = URL(myUrl)
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// 1. create HttpURLConnection
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val conn = url.openConnection() as HttpsURLConnection
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conn.requestMethod = "POST"
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conn.setRequestProperty("Content-Type", "application/json; charset=utf-8")
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// 2. build JSON object
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val jsonObject = buidJsonObject()
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// 3. add JSON content to POST request body
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setPostRequestContent(conn, jsonObject)
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// 4. make POST request to the given URL
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conn.connect()
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// 5. return response message
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conn.responseMessage + ""
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}
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return result
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}
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private fun checkNetworkConnection(): Boolean {
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val connMgr = getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
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val networkInfo = connMgr.activeNetworkInfo
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val isConnected: Boolean = if(networkInfo != null) networkInfo.isConnected() else false
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if (networkInfo != null && isConnected) {
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// show "Connected" & type of network "WIFI or MOBILE"
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tvIsConnected.text = "Connected " + networkInfo.typeName
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// change background color to red
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tvIsConnected.setBackgroundColor(-0x8333da)
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} else {
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// show "Not Connected"
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tvIsConnected.text = "Not Connected"
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// change background color to green
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tvIsConnected.setBackgroundColor(-0x10000)
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}
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return isConnected
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}
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@Throws(JSONException::class)
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private fun buidJsonObject(): JSONObject {
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val jsonObject = JSONObject()
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jsonObject.accumulate("title", etTitle.getText().toString())
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jsonObject.accumulate("url", etUrl.getText().toString())
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jsonObject.accumulate("tags", etTags.getText().toString())
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return jsonObject
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}
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@Throws(IOException::class)
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private fun setPostRequestContent(conn: HttpURLConnection, jsonObject: JSONObject) {
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val os = conn.outputStream
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val writer = BufferedWriter(OutputStreamWriter(os, "UTF-8"))
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writer.write(jsonObject.toString())
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Log.i(MainActivity::class.java.toString(), jsonObject.toString())
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writer.flush()
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writer.close()
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os.close()
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}
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}

‎android-http/post-json/src/main/res/drawable/ic_launcher_background.xml

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<?xml version="1.0" encoding="utf-8"?>
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<vector xmlns:android="http://schemas.android.com/apk/res/android"
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android:width="108dp"
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android:height="108dp"
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android:viewportWidth="108"
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android:viewportHeight="108">
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<path
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android:fillColor="#008577"
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android:pathData="M0,0h108v108h-108z" />
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<path
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android:fillColor="#00000000"
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android:pathData="M9,0L9,108"
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android:strokeWidth="0.8"
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android:strokeColor="#33FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M19,0L19,108"
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android:strokeWidth="0.8"
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android:strokeColor="#33FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M29,0L29,108"
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android:strokeWidth="0.8"
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android:strokeColor="#33FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M39,0L39,108"
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android:strokeWidth="0.8"
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android:strokeColor="#33FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M49,0L49,108"
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android:strokeWidth="0.8"
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android:strokeColor="#33FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M59,0L59,108"
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android:strokeWidth="0.8"
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android:strokeColor="#33FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M69,0L69,108"
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android:strokeWidth="0.8"
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android:strokeColor="#33FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M79,0L79,108"
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android:strokeWidth="0.8"
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android:strokeColor="#33FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M89,0L89,108"
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android:strokeWidth="0.8"
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android:strokeColor="#33FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M99,0L99,108"
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android:strokeWidth="0.8"
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android:strokeColor="#33FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M0,9L108,9"
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android:strokeWidth="0.8"
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android:strokeColor="#33FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M0,19L108,19"
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android:strokeWidth="0.8"
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android:strokeColor="#33FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M0,29L108,29"
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android:strokeWidth="0.8"
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android:strokeColor="#33FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M0,39L108,39"
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android:strokeWidth="0.8"
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android:strokeColor="#33FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M0,49L108,49"
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android:strokeWidth="0.8"
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android:strokeColor="#33FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M0,59L108,59"
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android:strokeWidth="0.8"
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android:strokeColor="#33FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M0,69L108,69"
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android:strokeWidth="0.8"
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android:strokeColor="#33FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M0,79L108,79"
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android:strokeWidth="0.8"
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android:strokeColor="#33FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M0,89L108,89"
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android:strokeWidth="0.8"
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android:strokeColor="#33FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M0,99L108,99"
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android:strokeWidth="0.8"
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android:strokeColor="#33FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M19,29L89,29"
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android:strokeWidth="0.8"
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android:strokeColor="#33FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M19,39L89,39"
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android:strokeWidth="0.8"
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android:strokeColor="#33FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M19,49L89,49"
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android:strokeWidth="0.8"
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android:strokeColor="#33FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M19,59L89,59"
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android:strokeWidth="0.8"
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android:strokeColor="#33FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M19,69L89,69"
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android:strokeWidth="0.8"
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android:strokeColor="#33FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M19,79L89,79"
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android:strokeWidth="0.8"
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android:strokeColor="#33FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M29,19L29,89"
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android:strokeWidth="0.8"
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android:strokeColor="#33FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M39,19L39,89"
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android:strokeWidth="0.8"
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android:strokeColor="#33FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M49,19L49,89"
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android:strokeWidth="0.8"
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android:strokeColor="#33FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M59,19L59,89"
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android:strokeWidth="0.8"
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android:strokeColor="#33FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M69,19L69,89"
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android:strokeWidth="0.8"
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android:strokeColor="#33FFFFFF" />
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<path
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android:fillColor="#00000000"
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android:pathData="M79,19L79,89"
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android:strokeWidth="0.8"
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android:strokeColor="#33FFFFFF" />
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</vector>

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