This example demonstrates how to play videos in Android TextureView using Kotlin.
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" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" android:padding="8dp" tools:context=".MainActivity"> <TextureView android:id="@+id/textureView" android:layout_width="match_parent" android:layout_height="match_parent"/> </LinearLayout>
Step 3 − Create an asset folder and copy-paste the video into the asset folder.
Step 4 − Add the following code to MainActivity.kt
import android.content.res.AssetFileDescriptor import android.graphics.SurfaceTexture import android.media.MediaPlayer import android.media.MediaPlayer.OnVideoSizeChangedListener import android.os.Build import android.os.Bundle import android.view.Surface import android.view.TextureView import android.view.TextureView.SurfaceTextureListener import androidx.appcompat.app.AppCompatActivity import java.io.IOException class MainActivity : AppCompatActivity(), SurfaceTextureListener, OnVideoSizeChangedListener { private lateinit var textureView: TextureView private lateinit var mediaPlayer: MediaPlayer private lateinit var fileDescriptor: AssetFileDescriptor override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) title = "KotlinApp" textureView = findViewById(R.id.textureView) textureView.surfaceTextureListener = this mediaPlayer = MediaPlayer() try { fileDescriptor = assets.openFd("videoplay.mp4") } catch (e: IOException) { e.printStackTrace() } } override fun onSurfaceTextureAvailable(surfaceTexture: SurfaceTexture, width: Int, height: Int) { val surface = Surface(surfaceTexture) try { mediaPlayer.setSurface(surface) if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) { mediaPlayer.setDataSource(fileDescriptor) mediaPlayer.prepareAsync() mediaPlayer.setOnPreparedListener { mediaPlayer.start() } } } catch (e: IOException) { e.printStackTrace() } } override fun onSurfaceTextureSizeChanged(surface: SurfaceTexture, width: Int, height: Int) {} override fun onSurfaceTextureDestroyed(surface: SurfaceTexture): Boolean { return false } override fun onSurfaceTextureUpdated(surface: SurfaceTexture) {} override fun onVideoSizeChanged(mp: MediaPlayer, width: Int, height: Int) {} }
Step 5 − Add the following code to androidManifest.xml
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="app.com.kotlipapp"> <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>
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 the Run icon from the toolbar. Select your mobile device as an option and then check your mobile device which will display your default screen −
Click here to download the project code.