Advanced Android - Flexbox Layout

FlexboxLayout is an android layout manager which brings the similar capabilities to the CSS Flexible Box Layout Module

Example

This example demostrate about how to integrate Android Flexbox Layout.

Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.

Step 2 − Add the following code to res/layout/activity_main.xml.

<?xml version = "1.0" encoding = "utf-8"?>
<LinearLayout xmlns:android = "http://schemas.android.com/apk/res/android"
   android:layout_width = "match_parent"
   android:layout_height = "match_parent"
   android:layout_margin = "16dp"
   android:orientation = "vertical">
   <TextView
      android:layout_width = "match_parent"
      android:layout_height = "wrap_content"
      android:padding = "16dp"
      android:text = "Android Flexbox Layout Tutorial with Example" />
   <Button
      android:layout_width = "match_parent"
      android:layout_height = "wrap_content"
      android:onClick = "flexboxLayout1"
      android:text = "Flexbox Layout Example 1" />
</LinearLayout>

Step 3 − Add the following code to src/MainActivity.java

package myapplication.example.com.myapplication;

import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;

public class MainActivity extends AppCompatActivity {
   @Override
   protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_main);
   } 
   public void flexboxLayout1(View view) {
      Intent intent = new Intent(getApplicationContext(), FlexboxLayoutExampleOne.class);
      startActivity(intent);
   }
}

Step 4 − Add the following code to src/FlexboxLayoutExampleOne.java

package myapplication.example.com.myapplication;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;

public class FlexboxLayoutExampleOne extends AppCompatActivity {
   @Override
   protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.flexbox_layout1);
   }
}

Step 5 − Add the following code to res/layout/flexbox_layout1.xml.

<?xml version = "1.0" encoding = "utf-8"?>
<com.google.android.flexbox.FlexboxLayout xmlns:android = "   
   http://schemas.android.com/apk/res/android"
   xmlns:app = "http://schemas.android.com/apk/res-auto"
   android:id = "@+id/flexboxLayout"
   android:layout_width = "match_parent"
   android:layout_height = "match_parent"
   app:alignContent = "stretch"
   app:alignItems = "stretch"
   app:flexWrap = "wrap">
   <TextView
      android:layout_width = "110dp"
      android:layout_height = "90dp"
      android:background = "#80da2804"
      android:gravity = "center"
      android:text = "1"
      android:textColor = "#fff"
      android:textSize = "30dp"
      android:textStyle = "bold"
      app:layout_flexBasisPercent = "50%" />
   <TextView
      android:layout_width = "90dp"
      android:layout_height = "90dp"
      android:layout_marginLeft = "20dp"
      android:background = "#80da2804"
      android:gravity = "center"
      android:text = "2"
      android:textColor = "#fff"
      android:textSize = "30dp"
      android:textStyle = "bold"
      app:layout_alignSelf = "center" />
   <TextView
      android:layout_width = "160dp"
      android:layout_height = "85dp"
      android:background = "#80da2804"
      android:gravity = "center"
      android:text = "3"
      android:textColor = "#fff"
      android:textSize = "30dp"
      android:textStyle = "bold"
      app:layout_alignSelf = "flex_end" />
</com.google.android.flexbox.FlexboxLayout>

Step 6 − Add the following code to manifest.xml

<?xml version = "1.0" encoding = "utf-8"?>
<manifest xmlns:android = "http://schemas.android.com/apk/res/android"
   package = "myapplication.example.com.myapplication">
   <uses-permission android:name = "android.permission.INTERNET"/>
   <application
      android:allowBackup = "true"
      android:icon = "@mipmap/ic_launcher"
      android:label = "@string/app_name"
      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>
      <activity android:name=".FlexboxLayoutExampleOne"/>
      
   </application>
</manifest>

Let's try to run your application. I assume you have connected your actual Android Mobile device with your computer. To run the app from android studio, open one of your project's activity files and click Run icon from the toolbar. Select your mobile device as an option and then check your mobile device which will display your default screen −