Opengl Android 中的可移动文本

Question

如何使用 Open GL 在 Android 中显示可移动文本？或者是他们以任何其他方式显示文本移动而没有任何混蛋。我尝试过 Android 动画和选取框，但它并没有减少混蛋。我需要在单行上移动的文本像新闻标题一样从右进入并从左向外移动。在 Open GL 中，我应该在渲染器中做什么？？

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    touchStart = new PointF();
    objs = new GLSurfaceView(this);
    sqobj = new  rendsquare();
    objs.setRenderer(sqobj);
    setContentView(objs);


    TextView editBox = new TextView(getApplicationContext());
    editBox.setTextColor(Color.BLUE);
    editBox.setEllipsize(TruncateAt.MARQUEE);
    editBox.setMarqueeRepeatLimit(-1);
    editBox.setHorizontallyScrolling(true);
    editBox.setFocusable(true);
    editBox.setFocusableInTouchMode(true);

    editBox.setText("Hello GL testing 123 hello hello h r u i am fine hello u there hello! hello !! !! !! !!");

    addContentView(editBox, new ViewGroup.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT));
}

//另一个

public class SquaropnglActivity extends Activity {

private rendsquare sqobj;
private PointF touchStart;
private GLSurfaceView objs;
Animation mAnimation = new TranslateAnimation(300f, -300f, 0.0f, 0.0f); 
/** Called when the activity is first created. */
@Override


public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    touchStart = new PointF();
    objs = new GLSurfaceView(this);
    sqobj = new  rendsquare();
    objs.setRenderer(sqobj);
    setContentView(objs);

    mAnimation.setRepeatMode(1);
    mAnimation.setInterpolator(new DecelerateInterpolator());
    mAnimation.setDuration(3000L);
    mAnimation.setRepeatCount(-1);
    TextView editBox = new TextView(getApplicationContext());
    editBox.setTextColor(Color.BLUE);

    editBox.setAnimation(mAnimation);
    editBox.setTextSize(40);
    editBox.setLines(1);
    editBox.setText("Hello GL testing 123 hello hello h r u i am fine hello u there hello! hello !! !! !! !!");

    addContentView(editBox, new ViewGroup.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT));
}

}

Answer 1

如果您想以 opengl 方式进行文本渲染，请在您的 onDrawFrame(gl) 方法中编写文本绘制逻辑，并在每个帧更新时更新文本位置以具有选取框动画。

对于文本渲染，请查看OpenGL Text Rendering

还没有测试过。它应该适合你。最好的祝愿。