问如何做文字书写动画？

EN

Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.runningcat);
int width = bitmap.getWidth();
int height = bitmap.getHeight();

int frameWidth = width / 5;    //you have 5 columns
int frameHeight = height / 5;  //and 5 rows
int frameNum = 25;             //there would be 25 images


SpriteSheetDrawer spriteSheetDrawer = new SpriteSheetDrawer(
        bitmap,
        frameWidth,
        frameHeight,
        frameNum)
        .spriteLoop(true)
        .frequency(2);   //change it as per your need


DisplayObject displayObject = new DisplayObject();
displayObject
        .with(spriteSheetDrawer)
        .tween()
        .tweenLoop(true)
        .transform(0, 0) //I have changed it according to my need, you can also do this by changing these values
        .toX(4000, 0)    //this one too.
        .end();
//In actual example, it's set as animation starts from one end of the screen and goes till the other one.


FPSTextureView textureView = (FPSTextureView) findViewById(R.id.fpsAnimation);
textureView.addChild(displayObject).tickStart();