在Android中,TextureView和SurfaceView都是用于顯示圖形或視頻的視圖組件。它們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已經可用,可以進行相應的操作
}
@Override
public void onSurfaceTextureSizeChanged(SurfaceTexture surfaceTexture, int width, int height) {
// SurfaceTexture的尺寸發生變化,可以調整相應的布局
}
@Override
public boolean onSurfaceTextureDestroyed(SurfaceTexture surfaceTexture) {
// SurfaceTexture被銷毀,可以釋放相應的資源
return false;
}
@Override
public void onSurfaceTextureUpdated(SurfaceTexture surfaceTexture) {
// SurfaceTexture更新,可以進行相應的操作
}
};
<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已經創建,可以進行相應的操作
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
// SurfaceView的尺寸或格式發生變化,可以調整相應的布局
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
// SurfaceView被銷毀,可以釋放相應的資源
}
};
無論選擇使用TextureView還是SurfaceView,都需要在相應的回調方法中實現自己的邏輯,例如繪制圖像、播放視頻等操作。另外,SurfaceView在多線程繪制圖形時有優勢,而TextureView在與其他視圖的混合渲染方面更加靈活。根據具體的需求,選擇適合的視圖組件。