android开发TextureView
时间: 2024-06-13 15:10:09 浏览: 18
Android中的TextureView是一个可用于显示视频和其他实时内容的视图组件。与SurfaceView不同,TextureView可以在UI线程中使用,因此可以更轻松地与其他UI元素进行交互。以下是使用TextureView的步骤:
1.在XML布局文件中添加TextureView组件:
```xml
<TextureView
android:id="@+id/texture_view"
android:layout_width="match_parent"
android:layout_height="match_parent" />
```
2.在Java代码中获取TextureView实例并设置SurfaceTextureListener:
```java
TextureView textureView = findViewById(R.id.texture_view);
textureView.setSurfaceTextureListener(new TextureView.SurfaceTextureListener() {
@Override
public void onSurfaceTextureAvailable(SurfaceTexture surfaceTexture, int width, int height) {
// SurfaceTexture可用时执行相关操作
}
@Override
public void onSurfaceTextureSizeChanged(SurfaceTexture surfaceTexture, int width, int height) {
// SurfaceTexture尺寸变化时执行相关操作
}
@Override
public boolean onSurfaceTextureDestroyed(SurfaceTexture surfaceTexture) {
// SurfaceTexture销毁时执行相关操作
return true;
}
@Override
public void onSurfaceTextureUpdated(SurfaceTexture surfaceTexture) {
// SurfaceTexture更新时执行相关操作
}
});
```
3.在onSurfaceTextureAvailable()方法中获取SurfaceTexture实例并进行相关操作:
```java
@Override
public void onSurfaceTextureAvailable(SurfaceTexture surfaceTexture, int width, int height) {
// SurfaceTexture可用时执行相关操作
Surface surface = new Surface(surfaceTexture);
// 使用surface进行绘制等操作
}
```
4.在onSurfaceTextureDestroyed()方法中释放相关资源:
```java
@Override
public boolean onSurfaceTextureDestroyed(SurfaceTexture surfaceTexture) {
// SurfaceTexture销毁时执行相关操作
surface.release();
return true;
}
```