Refactor: Targeting the latest version of android and more

app/build.gradle

@@ -1,14 +1,14 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 28
+    compileSdkVersion 30
     defaultConfig {
         applicationId "com.example.umangburman.databindingwithlivedata"
         minSdkVersion 21
-        targetSdkVersion 28
+        targetSdkVersion 30
         versionCode 1
         versionName "1.0"
-        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+        testInstrumentationRunner 'androidx.test.runner.AndroidJUnitRunner'
     }
     buildTypes {
         release {
@@ -23,16 +23,19 @@ android {
 
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
-    implementation 'com.android.support:appcompat-v7:28.0.0-rc02'
-    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'
+    implementation 'androidx.appcompat:appcompat:1.3.0'
+    implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
+    testImplementation 'junit:junit:4.13.2'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
 
 
     def life_versions = "1.1.1"
 
     // Lifecycle components
-    implementation "android.arch.lifecycle:extensions:$life_versions"
-    annotationProcessor "android.arch.lifecycle:compiler:$life_versions"
+    implementation 'androidx.lifecycle:lifecycle-extensions:2.2.0'
+    //ViewModel components
+    implementation "androidx.lifecycle:lifecycle-viewmodel:2.3.1"
+    //noinspection LifecycleAnnotationProcessorWithJava8
+    annotationProcessor 'androidx.lifecycle:lifecycle-compiler:2.3.1'
 }

app/src/androidTest/java/com/example/umangburman/databindingwithlivedata/ExampleInstrumentedTest.java

@@ -1,8 +1,8 @@
 package com.example.umangburman.databindingwithlivedata;
 
 import android.content.Context;
-import android.support.test.InstrumentationRegistry;
-import android.support.test.runner.AndroidJUnit4;
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
 
 import org.junit.Test;
 import org.junit.runner.RunWith;

app/src/main/AndroidManifest.xml

@@ -9,7 +9,7 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
-        <activity android:name=".View.MainActivity">
+        <activity android:name=".view.MainActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 

app/src/main/java/com/example/umangburman/databindingwithlivedata/Model/LoginUser.java → app/src/main/java/com/example/umangburman/databindingwithlivedata/model/LoginUser.java

@@ -1,12 +1,12 @@
-package com.example.umangburman.databindingwithlivedata.Model;
+package com.example.umangburman.databindingwithlivedata.model;
 
 import android.util.Patterns;
 
 
 public class LoginUser {
 
-    private String strEmailAddress;
-    private String strPassword;
+    private final String strEmailAddress;
+    private final String strPassword;
 
     public LoginUser(String EmailAddress, String Password) {
         strEmailAddress = EmailAddress;

app/src/main/java/com/example/umangburman/databindingwithlivedata/view/MainActivity.java

@@ -0,0 +1,56 @@
+package com.example.umangburman.databindingwithlivedata.view;
+
+import androidx.lifecycle.ViewModelProvider;
+import androidx.databinding.DataBindingUtil;
+
+import android.os.Bundle;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.text.TextUtils;
+
+import com.example.umangburman.databindingwithlivedata.R;
+import com.example.umangburman.databindingwithlivedata.viewmodel.LoginViewModel;
+import com.example.umangburman.databindingwithlivedata.databinding.ActivityMainBinding;
+
+import java.util.Objects;
+
+public class MainActivity extends AppCompatActivity {
+
+    private ActivityMainBinding binding;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        LoginViewModel loginViewModel = new ViewModelProvider(this).get(LoginViewModel.class);
+
+        binding = DataBindingUtil.setContentView(MainActivity.this, R.layout.activity_main);
+
+        binding.setLifecycleOwner(this);
+
+        binding.setLoginViewModel(loginViewModel);
+
+        loginViewModel.getUser().observe(this, loginUser -> {
+
+            if (TextUtils.isEmpty(Objects.requireNonNull(loginUser).getStrEmailAddress())) {
+                binding.txtEmailAddress.setError("Enter an E-Mail Address");
+                binding.txtEmailAddress.requestFocus();
+            } else if (!loginUser.isEmailValid()) {
+                binding.txtEmailAddress.setError("Enter a Valid E-mail Address");
+                binding.txtEmailAddress.requestFocus();
+            } else if (TextUtils.isEmpty(Objects.requireNonNull(loginUser).getStrPassword())) {
+                binding.txtPassword.setError("Enter a Password");
+                binding.txtPassword.requestFocus();
+            } else if (!loginUser.isPasswordLengthGreaterThan5()) {
+                binding.txtPassword.setError("Enter at least 6 Digit password");
+                binding.txtPassword.requestFocus();
+            } else {
+                binding.lblEmailAnswer.setText(loginUser.getStrEmailAddress());
+                binding.lblPasswordAnswer.setText(loginUser.getStrPassword());
+            }
+
+        });
+
+    }
+}

app/src/main/java/com/example/umangburman/databindingwithlivedata/ViewModel/LoginViewModel.java → app/src/main/java/com/example/umangburman/databindingwithlivedata/viewmodel/LoginViewModel.java

@@ -1,10 +1,11 @@
-package com.example.umangburman.databindingwithlivedata.ViewModel;
+package com.example.umangburman.databindingwithlivedata.viewmodel;
+
+import androidx.lifecycle.MutableLiveData;
+import androidx.lifecycle.ViewModel;
 
-import android.arch.lifecycle.MutableLiveData;
-import android.arch.lifecycle.ViewModel;
 import android.view.View;
 
-import com.example.umangburman.databindingwithlivedata.Model.LoginUser;
+import com.example.umangburman.databindingwithlivedata.model.LoginUser;
 
 public class LoginViewModel extends ViewModel {
 

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

@@ -6,18 +6,18 @@
     <data>
         <variable
             name="LoginViewModel"
-            type="com.example.umangburman.databindingwithlivedata.ViewModel.LoginViewModel" />
+            type="com.example.umangburman.databindingwithlivedata.viewmodel.LoginViewModel" />
     </data>
 
-    <android.support.v4.widget.NestedScrollView
+    <androidx.core.widget.NestedScrollView
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:isScrollContainer="true">
 
-        <android.support.constraint.ConstraintLayout
+        <androidx.constraintlayout.widget.ConstraintLayout
             android:layout_width="match_parent"
             android:layout_height="match_parent"
-            tools:context=".View.MainActivity">
+            tools:context=".view.MainActivity">
 
             <TextView
                 android:id="@+id/lblTitle"
@@ -124,8 +124,8 @@
                 app:layout_constraintStart_toStartOf="parent"
                 app:layout_constraintTop_toBottomOf="@+id/lblEmailAnswer" />
 
-        </android.support.constraint.ConstraintLayout>
+        </androidx.constraintlayout.widget.ConstraintLayout>
 
-    </android.support.v4.widget.NestedScrollView>
+    </androidx.core.widget.NestedScrollView>
 
 </layout>

build.gradle

@@ -7,7 +7,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.1.4'
+        classpath 'com.android.tools.build:gradle:4.2.2'
 
 
         // NOTE: Do not place your application dependencies here; they belong

gradle.properties

@@ -6,6 +6,8 @@
 # http://www.gradle.org/docs/current/userguide/build_environment.html
 # Specifies the JVM arguments used for the daemon process.
 # The setting is particularly useful for tweaking memory settings.
+android.enableJetifier=true
+android.useAndroidX=true
 org.gradle.jvmargs=-Xmx1536m
 # When configured, Gradle will run in incubating parallel mode.
 # This option should only be used with decoupled projects. More details, visit

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Sun Sep 09 23:45:19 IST 2018
+#Thu Jul 08 15:46:35 TRT 2021
 distributionBase=GRADLE_USER_HOME
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.1.1-bin.zip
 distributionPath=wrapper/dists
-zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-all.zip
+zipStoreBase=GRADLE_USER_HOME

gradlew

@@ -123,7 +123,7 @@ if $cygwin ; then
         SEP="|"
     done
     OURCYGPATTERN="(^($ROOTDIRS))"
-    # Add a loginUser-defined pattern to the cygpath arguments
+    # Add a user-defined pattern to the cygpath arguments
     if [ "$GRADLE_CYGPATTERN" != "" ] ; then
         OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
     fi