我想将一张图片旋转,以便它能够适当地放置在另一张图片下方。这是我想要实现的效果:
而这是我当前实现的效果:
它基本上包含两个 ImageView
,其中第一个包含地板上面的部分,第二个包含覆盖地板的瓷砖。
我的问题是,我无法使瓷砖图像顺时针旋转并围绕 x 轴旋转视图,使其适合位于包含地板上面部分的图片下方。
我正在使用 ObjectAnimator
让我的 ImageView
动画化。以下是我的代码:
public class VisualizerFragment extends Fragment {
ImageView image;
FlipImageView image_back;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
getActivity().setRequestedOrientation(
ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
View view = inflater.inflate(R.layout.fragment_visualizer, container, false);
image = (ImageView) view.findViewById(R.id.vs_image);
image_back = (FlipImageView) view.findViewById(R.id.vs_image_back);
Glide.with(getActivity())
.load(R.drawable.floor3)
.centerCrop()
.fitCenter()
.listener(new RequestListener<Integer, GlideDrawable>() {
@Override
public boolean onException(Exception e, Integer model, Target<GlideDrawable> target, boolean isFirstResource) {
return false;
}
@Override
public boolean onResourceReady(GlideDrawable resource, Integer model, Target<GlideDrawable> target, boolean isFromMemoryCache, boolean isFirstResource) {
Bitmap bmp = BitmapFactory.decodeResource(getActivity().getResources(), R.drawable.i9004);
//crop image
Matrix matrix = new Matrix();
matrix.postScale(1f, 1f);
Bitmap croppedBitmap = Bitmap.createBitmap(bmp, 0, 0,100, 100, matrix, true);
bmp = getRoundedCornerBitmap(croppedBitmap, getResources().getColor(R.color.line),0,1,getActivity());
BitmapDrawable bitmapDrawable = new BitmapDrawable(bmp);
bitmapDrawable.setTileModeXY(Shader.TileMode.REPEAT, Shader.TileMode.REPEAT);
image_back.setDrawable(bitmapDrawable);
image_back.setFlippedDrawable(bitmapDrawable);
image_back.setFlipped(true);
image_back.toggleFlip();
//rotate image
ObjectAnimator anim = (ObjectAnimator) AnimatorInflater.loadAnimator(getActivity(), R.animator.fliping);
anim.setTarget(image_back);
anim.setDuration(100);
anim.start();
return false;
}
})
.into(image);
return view;
}
public static Bitmap getRoundedCornerBitmap(Bitmap bitmap, int color, int cornerDips, int borderDips, Context context) {
Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(),
Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(output);
final int borderSizePx = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, (float) borderDips,
context.getResources().getDisplayMetrics());
final int cornerSizePx = 0;
final Paint paint = new Paint();
final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
final RectF rectF = new RectF(rect);
// prepare canvas for transfer
paint.setAntiAlias(true);
paint.setColor(0xFFFFFFFF);
paint.setStyle(Paint.Style.FILL);
canvas.drawARGB(0, 0, 0, 0);
canvas.drawRoundRect(rectF, cornerSizePx, cornerSizePx, paint);
// draw bitmap
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
canvas.drawBitmap(bitmap, rect, rect, paint);
// draw border
paint.setColor(color);
paint.setStyle(Paint.Style.STROKE);
paint.setStrokeWidth((float) borderSizePx);
canvas.drawRoundRect(rectF, cornerSizePx, cornerSizePx, paint);
return output;
}
}
下面是我用于动画的flipping.xml:
<?xml version="1.0" encoding="utf-8"?>
<objectAnimator xmlns:android="http://schemas.android.com/apk/res/android"
android:propertyName="rotationX"
android:valueFrom="20"
android:valueTo="50"
android:valueType="floatType"
/>