Add CustomView

03. Custom View/MyCustomView/.gitignore

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+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild

03. Custom View/MyCustomView/app/.gitignore

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+/build

03. Custom View/MyCustomView/app/build.gradle

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+apply plugin: 'com.android.application'
+
+android {
+ compileSdkVersion 28
+ defaultConfig {
+ applicationId "com.dicoding.picodiploma.mycustomview"
+ minSdkVersion 21
+ targetSdkVersion 28
+ versionCode 1
+ versionName "1.0"
+ testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+ }
+ buildTypes {
+ release {
+ minifyEnabled false
+ proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+ }
+ }
+}
+
+dependencies {
+ implementation fileTree(dir: 'libs', include: ['*.jar'])
+ implementation 'com.android.support:appcompat-v7:28.0.0'
+ implementation 'com.android.support.constraint:constraint-layout:1.1.3'
+ testImplementation 'junit:junit:4.12'
+ androidTestImplementation 'com.android.support.test:runner:1.0.2'
+ androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
+}

03. Custom View/MyCustomView/app/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+# http:https://developer.android.com/guide/developing/tools/proguard.html
+
+# 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

03. Custom View/MyCustomView/app/src/androidTest/java/com/dicoding/picodiploma/mycustomview/ExampleInstrumentedTest.java

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+package com.dicoding.picodiploma.mycustomview;
+
+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.*;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see <a href="http:https://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+ @Test
+ public void useAppContext() {
+ // Context of the app under test.
+ Context appContext = InstrumentationRegistry.getTargetContext();
+
+ assertEquals("com.dicoding.picodiploma.mycustomview", appContext.getPackageName());
+ }
+}

03. Custom View/MyCustomView/app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http:https://schemas.android.com/apk/res/android"
+ package="com.dicoding.picodiploma.mycustomview">
+
+ <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=".MainActivity">
+ <intent-filter>
+ <action android:name="android.intent.action.MAIN" />
+
+ <category android:name="android.intent.category.LAUNCHER" />
+ </intent-filter>
+ </activity>
+ </application>
+
+</manifest>

03. Custom View/MyCustomView/app/src/main/java/com/dicoding/picodiploma/mycustomview/MainActivity.java

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+package com.dicoding.picodiploma.mycustomview;
+
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.text.Editable;
+import android.text.TextWatcher;
+import android.view.View;
+import android.widget.Toast;
+
+public class MainActivity extends AppCompatActivity {
+
+ private MyButton myButton;
+ private MyEditText myEditText;
+
+ @Override
+ protected void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ setContentView(R.layout.activity_main);
+
+ myButton = findViewById(R.id.my_button);
+ myEditText = findViewById(R.id.my_edit_text);
+
+ // Melakukan pengecekan saat pertama kali activity terbentuk
+ if (myEditText.getText()!=null){
+ setMyButtonEnable(myEditText.getText().toString());
+ }
+
+ // Menambahkan metode ketika text terjadi perubahan
+ myEditText.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) {
+ setMyButtonEnable(s.toString());
+ }
+
+ @Override
+ public void afterTextChanged(Editable s) {
+
+ }
+ });
+
+ // Menambahkan aksi klik kepada button
+ myButton.setOnClickListener(new View.OnClickListener() {
+ @Override
+ public void onClick(View v) {
+ Toast.makeText(MainActivity.this, myEditText.getText().toString(), Toast.LENGTH_SHORT).show();
+ }
+ });
+ }
+
+ // Metode untuk mengubah disable dan enable pada button
+ private void setMyButtonEnable(String string){
+ if (string.isEmpty()){
+ myButton.setEnabled(false);
+ }else{
+ myButton.setEnabled(true);
+ }
+ }
+}

03. Custom View/MyCustomView/app/src/main/java/com/dicoding/picodiploma/mycustomview/MyButton.java

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+package com.dicoding.picodiploma.mycustomview;
+
+import android.content.Context;
+import android.graphics.Canvas;
+import android.support.v4.content.ContextCompat;
+import android.util.AttributeSet;
+
+import static android.view.Gravity.CENTER;
+
+public class MyButton extends android.support.v7.widget.AppCompatButton {
+
+ // Konstruktor dari MyButton
+ public MyButton(Context context) {
+ super(context);
+ }
+
+ public MyButton(Context context, AttributeSet attrs) {
+ super(context, attrs);
+ }
+
+ public MyButton(Context context, AttributeSet attrs, int defStyleAttr) {
+ super(context, attrs, defStyleAttr);
+ }
+
+ // Metode onDraw() digunakan untuk mengcustom button ketika enable dan disable
+ @Override
+ protected void onDraw(Canvas canvas) {
+ super.onDraw(canvas);
+ // Mengubah background dari Button
+ setBackground(getResources().getDrawable(isEnabled() ? R.drawable.bg_button : R.drawable.bg_button_disable));
+
+ // Mengubah warna text pada button
+ setTextColor(ContextCompat.getColor(getContext(), android.R.color.background_light));
+
+ // Mengubah ukuran text pada button
+ setTextSize(12.f);
+
+ // Menjadikan object pada button menjadi center
+ setGravity(CENTER);
+
+ // Mengubah text pada button pada kondisi enable dan disable
+ setText(isEnabled() ? "Submit" : "Isi Dulu");
+ }
+}