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トップに関する質問Viewの回転後の座標の取得方法

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1

カスタムViewのコードを追記しました。（こちらのソースは広いものです。）

2018/10/12 06:55

投稿

24develop
24develop

スコア8

test CHANGED
File without changes
test CHANGED
@@ -66,7 +66,9 @@
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  正直自身の能力を超えていて泣きそうです。
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-
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+ というかこれってアプリ開発初心者が一人で取り組む内容なんでしょうか…。
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+
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+ 投げたいです。
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@@ -116,4 +118,266 @@
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  }
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+
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+
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  ```
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+
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+
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+
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+
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+
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+
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+
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+ ```
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+
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+ //カスタムViewクラス（抜粋）
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+
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+ private OnTouchListener mTouchListener = new OnTouchListener() {
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+
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+ @Override
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+
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+ public boolean onTouch(View view, MotionEvent event) {
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+
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+
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+
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+ if(view.getTag().equals("DraggableViewGroup")) {
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+
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+ switch (event.getAction()) {
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+
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+ case MotionEvent.ACTION_DOWN:
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+
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+ move_orgX = event.getRawX();
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+
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+ move_orgY = event.getRawY();
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+
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+ break;
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+
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+ case MotionEvent.ACTION_MOVE:
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+
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+ float offsetX = event.getRawX() - move_orgX;
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+
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+ float offsetY = event.getRawY() - move_orgY;
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+
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+ StickerView.this.setX(StickerView.this.getX()+offsetX);
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+
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+ StickerView.this.setY(StickerView.this.getY() + offsetY);
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+
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+ move_orgX = event.getRawX();
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+
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+ move_orgY = event.getRawY();
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+
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+ break;
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+
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+ case MotionEvent.ACTION_UP:
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+
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+ break;
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+
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+ }
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+
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+ }else if(view.getTag().equals("iv_scale")){
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+
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+ switch (event.getAction()) {
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+
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+ case MotionEvent.ACTION_DOWN:
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+
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+
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+
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+ this_orgX = StickerView.this.getX();
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+
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+ this_orgY = StickerView.this.getY();
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+
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+
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+
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+ scale_orgX = event.getRawX();
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+
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+ scale_orgY = event.getRawY();
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+
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+ scale_orgWidth = StickerView.this.getLayoutParams().width;
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+
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+ scale_orgHeight = StickerView.this.getLayoutParams().height;
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+
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+
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+
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+ rotate_orgX = event.getRawX();
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+
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+ rotate_orgY = event.getRawY();
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+
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+
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+
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+ centerX = StickerView.this.getX()+
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+
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+ ((View)StickerView.this.getParent()).getX()+
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+ (float)StickerView.this.getWidth()/2;
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+
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+
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+
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+
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+ //double statusBarHeight = Math.ceil(25 * getContext().getResources().getDisplayMetrics().density);
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+ int result = 0;
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+
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+ int resourceId = getResources().getIdentifier("status_bar_height", "dimen", "android");
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+
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+ if (resourceId > 0) {
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+
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+ result = getResources().getDimensionPixelSize(resourceId);
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+
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+ }
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+
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+ double statusBarHeight = result;
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+
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+ centerY = StickerView.this.getY()+
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+
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+ ((View)StickerView.this.getParent()).getY()+
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+
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+ statusBarHeight+
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+
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+ (float)StickerView.this.getHeight()/2;
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+
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+
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+
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+ break;
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+
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+ case MotionEvent.ACTION_MOVE:
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+
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+
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+
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+ rotate_newX = event.getRawX();
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+
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+ rotate_newY = event.getRawY();
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+
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+ //回転数
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+
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+ double angle_diff = Math.abs(
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+ Math.atan2(event.getRawY() - scale_orgY , event.getRawX() - scale_orgX)
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+
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+ - Math.atan2(scale_orgY - centerY, scale_orgX - centerX))*180/Math.PI;
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+
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+
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+
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+
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+ double length1 = getLength(centerX, centerY, scale_orgX, scale_orgY);
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+
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+ double length2 = getLength(centerX, centerY, event.getRawX(), event.getRawY());
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+
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+
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+
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+ int size = convertDpToPixel(SELF_SIZE_DP, getContext());
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+
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+ if(length2 > length1
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+
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+ && (angle_diff < 25 || Math.abs(angle_diff-180)<25)
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+
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+ ) {
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+
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+ LOGD("xxxStickerViewsize", "everyrotatehascome?" );
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+
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+ //scale up
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+
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+ double offsetX = Math.abs(event.getRawX() - scale_orgX);
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+
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+ double offsetY = Math.abs(event.getRawY() - scale_orgY);
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+
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+ double offset = Math.max(offsetX, offsetY);
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+
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+ offset = Math.round(offset);
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+
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+ StickerView.this.getLayoutParams().width += offset;
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+
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+ StickerView.this.getLayoutParams().height += offset;
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+
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+ onScaling(true);
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+ StickerView.this.setX((float) (getX() - offset / 2));
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+
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+ StickerView.this.setY((float) (getY() - offset / 2));
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+
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+
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+
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+ }else if(length2 < length1
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+
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+ && (angle_diff < 25 || Math.abs(angle_diff-180)<25)
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+
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+ && StickerView.this.getLayoutParams().width > size/2
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+
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+ && StickerView.this.getLayoutParams().height > size/2) {
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+
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+ //scale down
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+
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+ double offsetX = Math.abs(event.getRawX() - scale_orgX);
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+
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+ double offsetY = Math.abs(event.getRawY() - scale_orgY);
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+
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+ double offset = Math.max(offsetX, offsetY);
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+
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+ offset = Math.round(offset);
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+
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+ StickerView.this.getLayoutParams().width -= offset;
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+
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+ StickerView.this.getLayoutParams().height -= offset;
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+
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+ onScaling(false);
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+
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+ }
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+
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+
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+
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+ //rotate
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+
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+ double angle = Math.atan2(event.getRawY() - centerY, event.getRawX() - centerX) * 180 / Math.PI;
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+
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+
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+
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+ //setRotation((float) angle - 45);
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+ setRotation((float) angle - 45);
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+
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+
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+
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+ onRotating();
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+
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+
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+
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+ rotate_orgX = rotate_newX;
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+
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+ rotate_orgY = rotate_newY;
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+
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+
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+
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+ scale_orgX = event.getRawX();
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+
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+ scale_orgY = event.getRawY();
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+
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+
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+
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+ postInvalidate();
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+
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+ requestLayout();
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+
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+
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+
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+ LOGD("xxxStickerViewsize", "view.getX()=" + StickerView.this.getX() + "view.getY()=" +StickerView.this.getY() );
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+
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+
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+
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+ break;
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+
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+ case MotionEvent.ACTION_UP:
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+
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+ break;
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+
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+ }
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+
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+ }
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+
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+ return true;
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+
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+ }
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+
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+ };
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+
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+ ```