在Android中,TextureView和SurfaceView都是用于显示图形或视频的视图组件。它们的使用方式略有不同:
<TextureView
android:id="@+id/textureView"
android:layout_width="match_parent"
android:layout_height="match_parent" />
TextureView textureView = findViewById(R.id.textureView);
textureView.setSurfaceTextureListener(surfaceTextureListener);
SurfaceTextureListener surfaceTextureListener = new SurfaceTextureListener() {
@Override
public void onSurfaceTextureAvailable(SurfaceTexture surfaceTexture, int width, int height) {
// SurfaceTexture已经可用,可以进行相应的操作
}
@Override
public void onSurfaceTextureSizeChanged(SurfaceTexture surfaceTexture, int width, int height) {
// SurfaceTexture的尺寸发生变化,可以调整相应的布局
}
@Override
public boolean onSurfaceTextureDestroyed(SurfaceTexture surfaceTexture) {
// SurfaceTexture被销毁,可以释放相应的资源
return false;
}
@Override
public void onSurfaceTextureUpdated(SurfaceTexture surfaceTexture) {
// SurfaceTexture更新,可以进行相应的操作
}
};
<SurfaceView
android:id="@+id/surfaceView"
android:layout_width="match_parent"
android:layout_height="match_parent" />
SurfaceView surfaceView = findViewById(R.id.surfaceView);
SurfaceHolder surfaceHolder = surfaceView.getHolder();
surfaceHolder.addCallback(surfaceHolderCallback);
SurfaceHolder.Callback surfaceHolderCallback = new SurfaceHolder.Callback() {
@Override
public void surfaceCreated(SurfaceHolder holder) {
// SurfaceView已经创建,可以进行相应的操作
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
// SurfaceView的尺寸或格式发生变化,可以调整相应的布局
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
// SurfaceView被销毁,可以释放相应的资源
}
};
无论选择使用TextureView还是SurfaceView,都需要在相应的回调方法中实现自己的逻辑,例如绘制图像、播放视频等操作。另外,SurfaceView在多线程绘制图形时有优势,而TextureView在与其他视图的混合渲染方面更加灵活。根据具体的需求,选择适合的视图组件。