Add constraint layout

app/build.gradle

@@ -5,12 +5,12 @@ plugins {
 
 android {
     namespace 'com.lahsuak.apps.jetpackcomposebasic'
-    compileSdk 33
+    compileSdk 34
 
     defaultConfig {
         applicationId "com.lahsuak.apps.jetpackcomposebasic"
         minSdk 23
-        targetSdk 33
+        targetSdk 34
         versionCode 1
         versionName "1.0"
 
@@ -27,17 +27,17 @@ android {
         }
     }
     compileOptions {
-        sourceCompatibility JavaVersion.VERSION_1_8
-        targetCompatibility JavaVersion.VERSION_1_8
+        sourceCompatibility JavaVersion.VERSION_17
+        targetCompatibility JavaVersion.VERSION_17
     }
     kotlinOptions {
-        jvmTarget = '1.8'
+        jvmTarget = '17'
     }
     buildFeatures {
         compose true
     }
     composeOptions {
-        kotlinCompilerExtensionVersion '1.1.1'
+        kotlinCompilerExtensionVersion '1.4.3'
     }
     packagingOptions {
         resources {
@@ -48,16 +48,18 @@ android {
 
 dependencies {
 
-    implementation 'androidx.core:core-ktx:1.9.0'
-    implementation 'androidx.lifecycle:lifecycle-runtime-ktx:2.5.1'
-    implementation 'androidx.activity:activity-compose:1.6.1'
+    implementation 'androidx.core:core-ktx:1.10.1'
+    implementation 'androidx.lifecycle:lifecycle-runtime-ktx:2.6.1'
+    implementation 'androidx.activity:activity-compose:1.7.2'
     implementation "androidx.compose.ui:ui:$compose_version"
     implementation "androidx.compose.ui:ui-tooling-preview:$compose_version"
-    implementation 'androidx.compose.material3:material3:1.1.0-alpha03'
+    implementation 'androidx.compose.material3:material3:1.2.0-alpha03'
     testImplementation 'junit:junit:4.13.2'
-    androidTestImplementation 'androidx.test.ext:junit:1.1.4'
-    androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.0'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.5'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
     androidTestImplementation "androidx.compose.ui:ui-test-junit4:$compose_version"
     debugImplementation "androidx.compose.ui:ui-tooling:$compose_version"
     debugImplementation "androidx.compose.ui:ui-test-manifest:$compose_version"
+
+    implementation "androidx.constraintlayout:constraintlayout-compose:1.0.1"
 }

app/src/main/java/com/lahsuak/apps/jetpackcomposebasic/MainActivity.kt

@@ -3,13 +3,23 @@ package com.lahsuak.apps.jetpackcomposebasic
 import android.os.Bundle
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Surface
-import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.layout.layoutId
 import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import androidx.constraintlayout.compose.ChainStyle
+import androidx.constraintlayout.compose.ConstraintLayout
+import androidx.constraintlayout.compose.ConstraintSet
+import androidx.constraintlayout.compose.Dimension
 import com.lahsuak.apps.jetpackcomposebasic.ui.theme.JetPackComposeBasicTheme
 
 class MainActivity : ComponentActivity() {
@@ -22,29 +32,70 @@ class MainActivity : ComponentActivity() {
                     modifier = Modifier.fillMaxSize(),
                     color = MaterialTheme.colorScheme.background
                 ) {
-                    Greeting("Android")
+                    IndianFlagScreen()
                 }
             }
         }
     }
 }
-/***
-Composable functions :
-A composable function is a regular function annotated with @Composable.
-This enables your function to call other @Composable functions within it.
-You can see how the Greeting function is marked as @Composable.
-This function will produce a piece of UI hierarchy displaying the given input,
-String. Text is a composable function provided by the library.
-***/
+
 @Composable
-fun Greeting(name: String) {
-    Text(text = "Hello $name!")
+fun IndianFlagScreen() {
+    val constraints = ConstraintSet {
+        val orangeBox = createRefFor("orangebox")
+        val greenBox = createRefFor("greenbox")
+        val circle = createRefFor("circle")
+
+        constrain(orangeBox) {
+            top.linkTo(parent.top)
+            start.linkTo(parent.start)
+            end.linkTo(parent.end)
+            bottom.linkTo(circle.top)
+            width = Dimension.fillToConstraints
+            height = Dimension.value(260.dp)
+        }
+        constrain(circle) {
+            top.linkTo(parent.top)
+            bottom.linkTo(parent.bottom)
+            start.linkTo(parent.start)
+            end.linkTo(parent.end)
+            width = Dimension.value(100.dp)
+            height = Dimension.value(100.dp)
+        }
+        constrain(greenBox) {
+            top.linkTo(circle.bottom)
+            bottom.linkTo(parent.bottom)
+            start.linkTo(parent.start)
+            end.linkTo(parent.end)
+            width = Dimension.fillToConstraints
+            height = Dimension.value(260.dp)
+        }
+        createVerticalChain(orangeBox, circle, greenBox, chainStyle = ChainStyle.SpreadInside)
+    }
+    ConstraintLayout(constraints, modifier = Modifier.background(Color.White).fillMaxSize()) {
+        Box(
+            modifier = Modifier
+                .background(Color(0xFFFB8C00))
+                .layoutId("orangebox")
+        )
+        Box(
+            modifier = Modifier
+                .clip(CircleShape)
+                .background(Color.Blue)
+                .layoutId("circle")
+        )
+        Box(
+            modifier = Modifier
+                .background(Color(0xFF2EB734))
+                .layoutId("greenbox")
+        )
+    }
 }
 
 @Preview(showBackground = true)
 @Composable
 fun DefaultPreview() {
     JetPackComposeBasicTheme {
-        Greeting("Android")
+        IndianFlagScreen()
     }
 }

build.gradle

@@ -1,10 +1,10 @@
 buildscript {
     ext {
-        compose_version = '1.3.2'
+        compose_version = '1.4.3'
     }
 }// Top-level build file where you can add configuration options common to all sub-projects/modules.
 plugins {
-    id 'com.android.application' version '7.3.0' apply false
-    id 'com.android.library' version '7.3.0' apply false
-    id 'org.jetbrains.kotlin.android' version '1.6.10' apply false
+    id 'com.android.application' version '8.0.2' apply false
+    id 'com.android.library' version '8.0.2' apply false
+    id 'org.jetbrains.kotlin.android' version '1.8.10' apply false
 }