Merge pull request #3 from SamiraVaezi/mary_data_binding

Mary data binding

app/build.gradle

@@ -1,6 +1,7 @@
 plugins {
     id 'com.android.application'
     id 'kotlin-android'
+    id 'kotlin-kapt'
 }
 
 android {
@@ -30,10 +31,12 @@ android {
     kotlinOptions {
         jvmTarget = '1.8'
     }
+    dataBinding {
+        enabled = true
+    }
 }
 
 dependencies {
-
     implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
     implementation 'androidx.core:core-ktx:1.2.0'
     implementation 'androidx.appcompat:appcompat:1.1.0'
@@ -42,4 +45,8 @@ dependencies {
     testImplementation 'junit:junit:4.+'
     androidTestImplementation 'androidx.test.ext:junit:1.1.1'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
+
+    kapt "com.android.databinding:compiler:$gradle_version"
+
+    implementation 'com.squareup.picasso:picasso:2.5.2'
 }

app/src/main/AndroidManifest.xml

@@ -2,6 +2,8 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.angels.pooyeshgaran">
 
+    <uses-permission android:name="android.permission.INTERNET"/>
+
     <application
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"

app/src/main/java/com/angels/pooyeshgaran/MainActivity.kt

@@ -2,10 +2,22 @@ package com.angels.pooyeshgaran
 
 import androidx.appcompat.app.AppCompatActivity
 import android.os.Bundle
+import androidx.databinding.DataBindingUtil
+import com.angels.pooyeshgaran.databinding.ActivityMainBinding
+import com.angels.pooyeshgaran.databinding.UserModel
 
 class MainActivity : AppCompatActivity() {
+
+    lateinit var mainDataBinding: ActivityMainBinding
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
-        setContentView(R.layout.activity_main)
+
+        mainDataBinding = DataBindingUtil.setContentView(this, R.layout.activity_main)
+
+        val model = UserModel()
+        model.userName = "sami"
+        mainDataBinding.userModel = model
+        mainDataBinding.testUrl = "https://i.redd.it/g5acbfi5hkm01.jpg";
     }
 }

app/src/main/java/com/angels/pooyeshgaran/databinding/PicassoBindingAdapters.java

@@ -0,0 +1,22 @@
+package com.angels.pooyeshgaran.databinding;
+
+import android.content.Context;
+import android.widget.ImageView;
+import androidx.databinding.BindingAdapter;
+import com.angels.pooyeshgaran.R;
+import com.squareup.picasso.Picasso;
+
+public class PicassoBindingAdapters {
+
+    @BindingAdapter("imageResource")
+    public static void setImageResource(ImageView view, String imageUrl){
+
+        Context context = view.getContext();
+
+        Picasso.with(context)
+                .load(imageUrl)
+                .placeholder(R.drawable.ic_launcher_background)
+                .error(R.drawable.ic_launcher_background)
+                .into(view);
+    }
+}

app/src/main/java/com/angels/pooyeshgaran/databinding/UserModel.kt

@@ -0,0 +1,7 @@
+package com.angels.pooyeshgaran.databinding
+
+class UserModel {
+
+    lateinit var userName: String
+    lateinit var userImage: String
+}

app/src/main/res/layout/activity_main.xml

@@ -1,18 +1,47 @@
 <?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    tools:context=".MainActivity">
+<layout >
 
-    <TextView
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="Hello World!"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintLeft_toLeftOf="parent"
-        app:layout_constraintRight_toRightOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
+    <data>
+        <variable
+            name="userModel"
+            type="com.angels.pooyeshgaran.databinding.UserModel" />
+        <variable
+                name="testUrl"
+                type="String"/>
+    </data>
+
+    <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+        xmlns:app="http://schemas.android.com/apk/res-auto"
+        xmlns:tools="http://schemas.android.com/tools"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        tools:context=".MainActivity">
+
+        <ImageView
+                android:id="@+id/userImage"
+                android:layout_width="0dp"
+                android:layout_height="0dp"
+                app:imageResource="@{testUrl}"
+                android:layout_marginLeft="8dp"
+                android:layout_marginRight="8dp"
+                android:layout_marginTop="8dp"
+                app:layout_constraintLeft_toLeftOf="parent"
+                app:layout_constraintRight_toRightOf="parent"
+                app:layout_constraintTop_toTopOf="parent"
+                app:layout_constraintBottom_toTopOf="@+id/tvUserName"/>
+
+        <TextView
+                android:id="@+id/tvUserName"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:textAlignment="center"
+                app:layout_constraintLeft_toLeftOf="parent"
+                app:layout_constraintRight_toRightOf="parent"
+                app:layout_constraintTop_toBottomOf="@+id/userImage"
+                app:layout_constraintBottom_toBottomOf="parent"
+                android:text="@{userModel.userName}"/>
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+
+</layout>
 
-</androidx.constraintlayout.widget.ConstraintLayout>

build.gradle

@@ -1,14 +1,16 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 buildscript {
-    ext.kotlin_version = "1.4.0"
+    ext.kotlin_version = "1.3.31"
+    ext.gradle_version = "3.4.1"
     repositories {
         google()
         jcenter()
     }
     dependencies {
-        classpath "com.android.tools.build:gradle:4.1.0-beta03"
+        classpath "com.android.tools.build:gradle:$gradle_version"
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
 
+        classpath "org.jetbrains.kotlin:kotlin-android-extensions:$kotlin_version"
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
     }

gradle/wrapper/gradle-wrapper.properties

@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.5-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.1.1-all.zip