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This article will explain in detail how Android imitates the Wechat startup state of Nine Miyagi grid drag and delete function, the editor thinks it is very practical, so share it with you as a reference, I hope you can get something after reading this article.

1. Perfect 1: 1 imitates Wechat and imitates Wechat to post trends. Drag and delete nine grid.

There is a problem with dragging ui violently, which does not affect the use. Find a + sign for the resource file yourself.

2. Wechat sends dynamic drag and drop bug.

When you select a picture and press the home keyboard while dragging the picture, you cannot click on the input text when you enter it again. When you click on the input text, the event of selecting an album will be triggered.

3. Basequickadapter for drag and drop events

Implementation 'com.android.support:recyclerview-v7:28.0.0' implementation "com.github.CymChad:BaseRecyclerViewAdapterHelper:2.9.50" implementation "com.github.bumptech.glide:glide:4.9.0"

4. Get started quickly

Activity NineGridChooseImage nineGridChooseImage = findViewById (R.id.nineGridChooseImage); FrameLayout frameLayout= findViewById (R.id.frameLayout); nineGridChooseImage.init (frameLayout); int statusBarHeight = 0; int resourceId = getResources (). GetIdentifier ("status_bar_height", "dimen", "android"); if (resourceId > 0) {statusBarHeight = getResources (). GetDimensionPixelSize (resourceId);} nineGridChooseImage.setFixH (statusBarHeight) / / check the height of nineGridChooseImage.setAddClick (new NineGridChooseImage.AddClick () {@ Override public void onAdd () {/ * List list = new LinkedList (); for (int I = 0polii0) {mTempImage.setX (rect.left); mTempImage.setY (rect.top-mFixH);} else {mTempImage.setX (lastRect.left + dX); mTempImage.setY (lastRect.top-mFixH + dY);} mTempImage.getGlobalVisibleRect (rect); if (SCREEN_H-bottomViewH)

< rect.bottom) { isDel = true; trash.setBackgroundResource(R.drawable.base_trash_open); } else { isDel = false; trash.setBackgroundResource(R.drawable.base_trash_close); } } } public void addData(String path) { mDraggableAdapter.addData(0, path); mDraggableAdapter.notifyItemChanged(mDraggableAdapter.getData().size()-1); } public void addData(List path){ int size = mDraggableAdapter.getData().size(); int offset = mImageCount - size + 1; if(offset >

Path.size () {offset = path.size ();} mDraggableAdapter.addData (0, path.subList); mDraggableAdapter.notifyItemChanged (mDraggableAdapter.getData (). Size ()-1);} public void setImageCount (int mImageCount) {this.mImageCount = mImageCount;} public void setAddClick (AddClick mAddClick) {this.mAddClick = mAddClick;} public void setDragCallBack (DragCallBack mDragCallBack) {this.mDragCallBack = mDragCallBack } / * get list * * @ return * / public List getData () {List res = new LinkedList (); for (int I = 0; I < mDraggableAdapter.getData (). Size ()-1; iTunes +) {res.add (mDraggableAdapter.getData (). Get (I));} return res;} / * * enter * / private void in () {mBottomView.setVisibility (View.VISIBLE) at the bottom ObjectAnimator animator = ObjectAnimator.ofFloat (mBottomView, "translationY", 0) .setDuration; animator.start ();} / * * bottom remove screen exterior * / private void out () {final int moveX = DisplayUtil.dpToPx (55); ObjectAnimator animator = ObjectAnimator.ofFloat (mBottomView, "translationY", moveX) .setDuration (200); animator.addListener (new AnimatorListenerAdapter () {@ Override public void onAnimationEnd (Animator animation) {super.onAnimationEnd (animation); mBottomView.setVisibility (View.GONE)) Trash.setBackgroundResource (R.drawable.base_trash_close);}}); animator.start ();} public interface AddClick {void onAdd ();} public interface DragCallBack {void onStart (); void onEnd ();}}

Iamge_item.xml

This is the end of the article on "how Android imitates Wechat's startup state of Ninomiya drag and delete function". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.

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