为什么 continueStroke 函数不起作用

Question

我使用 onTouch() 记录一个手势的所有点，但 StrokeDescription 有一个持续时间。持续时间越短，我能看到的手势越粗糙。当我执行它时，它不是我记录的点。

然后我看到了 continueStroke 方法。看起来可以仔细设置每个周期的时间，但它不起作用。

谁能举个使用 continueStroke 方法的例子？谢谢。

@RequiresApi(api = Build.VERSION_CODES.O)
    static public GestureDescription CreateGestureDescription(){
        Path dragRightPath = new Path();
        dragRightPath.moveTo(200, 200);
        dragRightPath.lineTo(400, 200);
        long dragRightDuration = 500L; // 0.5 second

        Path dragDownPath = new Path();
        dragDownPath.moveTo(400, 200);
        dragDownPath.lineTo(400, 400);
        long dragDownDuration = 500L;
        GestureDescription.StrokeDescription rightThenDownDrag =
                new GestureDescription.StrokeDescription(dragRightPath, 0L,
                        dragRightDuration, true);
        rightThenDownDrag.continueStroke(dragDownPath, dragRightDuration,
                dragDownDuration, false);
        GestureDescription.Builder clickBuilder = new GestureDescription.Builder();
        return clickBuilder.addStroke(rightThenDownDrag).build();
    }

Answer 1

如果其他人搜索此问题：

Path path = new Path();
path.moveTo(200, 200);
path.lineTo(400, 200);
final GestureDescription.StrokeDescription sd = new GestureDescription.StrokeDescription(path, 0, 500, true);
Path path2 = new Path();
path2.moveTo(400, 200);
path2.lineTo(400, 400);
final GestureDescription.StrokeDescription sd2 = sd.continueStroke(path2, 0, 500, false);
HongBaoService.mService.dispatchGesture(new GestureDescription.Builder().addStroke(sd).build(), new AccessibilityService.GestureResultCallback() {
    @Override
    public void onCompleted(GestureDescription gestureDescription) {
        super.onCompleted(gestureDescription);
        HongBaoService.mService.dispatchGesture(new GestureDescription.Builder().addStroke(sd2).build(), null, null);
    }

    @Override
    public void onCancelled(GestureDescription gestureDescription) {
        super.onCancelled(gestureDescription);
    }
}, null);