Android仿网易新闻图片详情下滑隐藏效果示例代码
前言
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效果图:
实例代码
public class InfoTextView extends AutoRelativeLayout { private Context context; private int lastY; private int offY; private int MIN_HEIGHT = 600; public InfoTextView(Context context) { super(context); this.context = context; init(); } public InfoTextView(Context context, AttributeSet attrs) { super(context, attrs); this.context = context; init(); } public InfoTextView(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); this.context = context; init(); } private void init() { View root = inflate(context, R.layout.ad_detail_text_layout, this); } @Override public boolean onInterceptTouchEvent(MotionEvent ev) { return true; } @Override public boolean onTouchEvent(MotionEvent event) { return true; } @Override public boolean dispatchTouchEvent(MotionEvent ev) { boolean isConsume = false; int y = (int) ev.getY(); switch (ev.getAction()) { case MotionEvent.ACTION_DOWN: isConsume = true; lastY = y; break; case MotionEvent.ACTION_MOVE: offY = y - lastY; int[] screenSize = ScreenUtils.getScreenSize(context, false); if (getTop() >= (screenSize[1] - MIN_HEIGHT)) { break; } // Log.d("yzk", "y " + y + " getTop " + getTop() // + " getBottom " + getBottom() // + " screenSize[1] - getMeasuredHeight " + (screenSize[1] - getMeasuredHeight()) // + " screenSize[1] - MIN_HEIGHT " + (screenSize[1] - MIN_HEIGHT)); if ((offY > 0 && getTop() < screenSize[1] - MIN_HEIGHT) || offY < 0 && getTop() > screenSize[1] - getMeasuredHeight()) { layout(getLeft(), getTop() + offY, getRight(), getBottom() + offY); } break; case MotionEvent.ACTION_UP: break; } return isConsume || super.dispatchTouchEvent(ev); } }
总结
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