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This article mainly explains "how to use Android PopUpWindow to achieve card pop-up window", the content of the article is simple and clear, easy to learn and understand, the following please follow the editor's train of thought slowly in depth, together to study and learn "how to use Android PopUpWindow to achieve card pop-up window"!

Effect picture:

First, customize a ViewGroup, which inherits from LinerLayout, in order to slide up and down

/ / used to realize top pop-up window animation and upward slide animation public class TopTipsLinearLayout extends LinearLayout {private static final String TAG = "Hyh"; private int mHeight; private boolean mIsFirstLayout=true; private boolean mIsPalyingAnimation=false; private int mLastY=0; private int mLastX=0; private final int mTouchSlop = 4; private final long SINGLE_CLICK_TIME = 300; private long beginTiem=0; private boolean mIsMoving=false; public TopTipsLinearLayout (Context context) {super (context) } public TopTipsLinearLayout (Context context, @ Nullable AttributeSet attrs) {super (context, attrs);} public TopTipsLinearLayout (Context context, @ Nullable AttributeSet attrs, int defStyleAttr) {super (context, attrs, defStyleAttr);} @ RequiresApi (api = Build.VERSION_CODES.LOLLIPOP) public TopTipsLinearLayout (Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {super (context, attrs, defStyleAttr, defStyleRes) } @ Override protected void onLayout (boolean changed, int l, int t, int r, int b) {super.onLayout (changed, l, t, r, b); if (mIsFirstLayout) {mHeight = getHeight (); mIsFirstLayout = false;}} @ Override public boolean onInterceptTouchEvent (MotionEvent ev) {return super.onInterceptTouchEvent (ev) } @ SuppressLint ("ClickableViewAccessibility") @ Override public boolean onTouchEvent (MotionEvent event) {switch (event.getAction ()) {case MotionEvent.ACTION_DOWN: mIsMoving = false; beginTiem = System.currentTimeMillis (); break; case MotionEvent.ACTION_MOVE: int deltay = (int) event.getRawY ()-mLastY If (! mIsPalyingAnimation) {if (deltay < 0 | | getTranslationY () + deltay)

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