android - 动画 View 在椭圆 View 后面转换

Question

这是 current behaviour.我希望椭圆 View 与动画 View 重叠。 “肩膀”需要隐藏在椭圆形 View 中。

我已经在使用 FrameLayout 并尝试将 bringChildToFront、使用平移、提升但似乎没有任何效果。

如果您需要更多详细信息以更全面地了解问题，请告诉我。

布局:

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:id="@+id/parentLinearLayout"
 android:layout_width="fill_parent"
 android:layout_height="fill_parent"
 android:orientation="vertical">

<ImageView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:src="@drawable/id_face" />

<a.b.c.OvalAnimationView
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

</FrameLayout>

绘制逻辑:

@Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
    if (w != 0 && h != 0) {
        if (horizontalMargin == 0) {
            horizontalMargin = getMeasuredWidth() / WIDTH_FACTOR;
        }

        if (verticalMargin == 0) {
            verticalMargin = 0.11f * getMeasuredHeight();
        }

        fullScreenRect = new Rect(0, 0, getMeasuredWidth(), getMeasuredHeight());

        firstArc = new RectF(
                horizontalMargin,
                verticalMargin,
                getMeasuredWidth() - horizontalMargin,
                getMeasuredHeight() - verticalMargin);

        secondArc = new RectF(
                horizontalMargin,
                verticalMargin,
                getMeasuredWidth() - horizontalMargin,
                getMeasuredHeight() - verticalMargin);
    }
}

@Override
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);

    canvas.drawArc(firstArc, 0, 360, true, borderPaint);
    canvas.drawArc(secondArc,0, 360, true, eraser);
}

public void init(int borderColor) {
    this.horizontalMargin = 0;
    this.verticalMargin = 0;

    borderPaint = new Paint();
    borderPaint.setColor(borderColor);
    borderPaint.setStrokeWidth(35);
    borderPaint.setStyle(Paint.Style.STROKE);

    eraser = new Paint();
    eraser.setColor(Color.TRANSPARENT);
    eraser.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_OUT));
    eraser.setAntiAlias(true);
}

动画:

private void moveViewToScreenCenter( View view )
{
    DisplayMetrics dm = new DisplayMetrics();
    getActivity().getWindowManager().getDefaultDisplay().getMetrics(dm);
    int statusBarOffset = dm.heightPixels - lLayout.getMeasuredHeight();

    int originalPos[] = new int[2];
    view.getLocationOnScreen( originalPos );

    int xDest = dm.widthPixels/2;
    xDest -= (view.getMeasuredWidth()/2);
    int yDest = dm.heightPixels/2 - (view.getMeasuredHeight()/2) - statusBarOffset;

    AnimationSet animSet = new AnimationSet(true);
    animSet.setFillAfter(true);
    animSet.setDuration(2500);
    animSet.setInterpolator(new AccelerateInterpolator());
    TranslateAnimation translateAnimation = new TranslateAnimation( 0, xDest - originalPos[0] , 0, yDest - originalPos[1]);
    animSet.addAnimation(translateAnimation);
    ScaleAnimation scaleAnimation = new ScaleAnimation(1.0f, 0.70f, 1.0f, 0.70f, ScaleAnimation.RELATIVE_TO_PARENT, .5f, ScaleAnimation.RELATIVE_TO_PARENT, .4f);
    animSet.addAnimation(scaleAnimation);
    animSet.setZAdjustment(-1);

    new Handler().postDelayed(new Runnable() {
        public void run() {
            iFaceListener.onFaceAnimationFinished();
        }
    }, animSet.getDuration());
    view.startAnimation(animSet);
}

Answer 1

我自己修好了。

后验代码:

public class OvalAnimationView extends View {

private Paint transparentPaint = new Paint();
private Paint tPaint = new Paint();
private Paint eraser = new Paint();
private Paint borderPaint = new Paint();
private float horizontalMargin;
private float verticalMargin;
private Canvas temp;

private float WIDTH_FACTOR = 15f;

private Rect fullScreenRect;
private RectF firstArc, secondArc;

private Bitmap bitmap;

public OvalAnimationView(Context context) {
    super(context);
}

public OvalAnimationView(Context context, @Nullable AttributeSet attrs) {
    super(context, attrs);
}

public OvalAnimationView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
    super(context, attrs, defStyleAttr);
    setLayerType(LAYER_TYPE_SOFTWARE, null);
}

@Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
    if (w != 0 && h != 0) {
        if (horizontalMargin == 0) {
            horizontalMargin = getMeasuredWidth() / WIDTH_FACTOR;
        }

        if (verticalMargin == 0) {
            verticalMargin = 0.11f * getMeasuredHeight();
        }

        fullScreenRect = new Rect(0, 0, getMeasuredWidth(), getMeasuredHeight());

        firstArc = new RectF(
                horizontalMargin,
                verticalMargin,
                getMeasuredWidth() - horizontalMargin,
                getMeasuredHeight() - verticalMargin);

        secondArc = new RectF(
                horizontalMargin,
                verticalMargin,
                getMeasuredWidth() - horizontalMargin,
                getMeasuredHeight() - verticalMargin);
    }
}

@Override
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);
}

public void init(int borderColor) {
    this.horizontalMargin = 0;
    this.verticalMargin = 0;

    temp = new Canvas();

    transparentPaint = new Paint();
    transparentPaint.setColor(Color.BLACK);
    transparentPaint.setStyle(Paint.Style.FILL);

    tPaint = new Paint();
    tPaint.setColor(Color.TRANSPARENT);
    tPaint.setStyle(Paint.Style.FILL);

    borderPaint = new Paint();
    borderPaint.setColor(borderColor);
    borderPaint.setStrokeWidth(35);
    borderPaint.setStyle(Paint.Style.STROKE);
}

@Override
protected void dispatchDraw(Canvas canvas) {
    super.dispatchDraw(canvas);

    if (bitmap == null) {
        createWindowFrame();
    }
    canvas.drawBitmap(bitmap, 0, 0, null);
}


protected void createWindowFrame() {
    bitmap = Bitmap.createBitmap(getWidth(), getHeight(), Bitmap.Config.ARGB_8888);
    Canvas osCanvas = new Canvas(bitmap);

    RectF outerRectangle = new RectF(0, 0, getWidth(), getHeight());
    osCanvas.drawRect(fullScreenRect, transparentPaint);


    Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
    paint.setColor(Color.TRANSPARENT);
    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_OUT));
    float centerX = getWidth() / 2;
    float centerY = getHeight() / 2;
    float radius = 50;
    osCanvas.drawCircle(centerX, centerY, radius, paint);
    osCanvas.drawArc(firstArc, 0, 360, true, paint);
}

@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
    super.onLayout(changed, l, t, r, b);
    bitmap = null;
}
}