在java中拖动多个按钮视图
我有一个应用程序，需要移动按钮堆栈（就像将一堆卡片的一部分从一堆移动到另一堆一样）。 我已经在xml布局中定义了所有按钮，并为所有人设置了触摸和拖动监听器。 我可以单独拖放屏幕上的任何按钮。 但在某些情况下我需要做的是拖动堆叠在我同时单击的原始按钮顶部的其他按钮。 有没有一种方法来“欺骗”或模拟另一个按钮被按下（所以监听器注册它）？ 谢谢***编辑9/8/15 @Override public boolean onTouch（View v，MotionEvent e）{// tosty（“mclicking：”+ mClicking）; int startpos = 0; 开关（e.getAction（）＆MotionEvent.ACTION_MASK）{
case MotionEvent.ACTION_DOWN:
isWastePile=false;
get_selected_deck(v); // determines which of 7 decks or layouts in the tablau you have
// clicked
FromDeck = selecteddeck;
FromDeckCard = deckcard;
FromDeckButton = deckbutton;
// if (!mClicking) {
mClicking = true;
//String piecetag = (String) v.getTag();
// // IDEA!!!/ ///
/*
* I wrote a function that finds all the ImageButtons below where
* the user clicked, and set them all to invisible. I then created a
* new Linear Layout within the Linear Layout that the user clicked (during the ACTION_DOWN event),
* and passed that into the Drag Shadow builder during the ACTION_MOVE event.
*
* Once into the ACTION_DROP portion, I simply referenced global
* variables to figure out if the user dropped in one or multiple
* ImageButtons, and dealt with them accordingly.
*/
//if (!isWastePile) {
//draglayout.setClipChildren(false);
lltemp = new LinearLayout(this);
lltemp.setOrientation(LinearLayout.VERTICAL);
LinearLayout.LayoutParams llparams = new LinearLayout.LayoutParams(
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
llparams.setMargins(0, -52, 0, 0);
lltemp.setLayoutParams(llparams);
draglayout.addView(lltemp);
for (int i = 0; i < deckstack_list[selecteddeck].size(); i++) {
if (v == (draglayout.getChildAt(i))) {
startpos = i;
for (int o = i; o < deckstack_list[selecteddeck].size(); o++) {
// layout5.removeViewAt(o);
draglayout.getChildAt(o).setVisibility(View.GONE); // all
// buttons
// being
dragtempstack.push((Integer) deckstack_list[selecteddeck].get(o)) ; // dragged
// to
// invisible
// then recreate another linear layout within layout5
// and pass to dragshadow builder
// to do
// also set a GLOBAL variable with stack count (number
// of cards dragged)
lltemp.setClipChildren(false);
lltemp.addView(createtempButtons(o, startpos));
}
}
}
//} // end if wastepile check statement
//tosty("dragtempstack size: "+dragtempstack.size());
break;
case MotionEvent.ACTION_MOVE:
//tosty("Action MOVE");
Log.i("ACTION Event: ", "ACTION MOVE");
// v = layout5;
v = lltemp;
v.setVisibility(View.INVISIBLE);
v.bringToFront();
v.invalidate();
v.setVisibility(View.VISIBLE);
//DragShadowBuilder shadowBuilder = new View.DragShadowBuilder(v);
DeckDragShadow shadowBuilder = new DeckDragShadow(v);
v.startDrag(null, shadowBuilder, v, 0);
correctDrag = false;
break;
private Button createtempButtons(final int i, final int startpos) {
final Button b = new Button(this);
b.setOnTouchListener(this);
b.setOnDragListener(new DeckDragListener());
b.setBackgroundResource(cardimagearray[dragdeckstack.get(i)]);
float width = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
45, getResources().getDisplayMetrics());
float height = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
61, getResources().getDisplayMetrics());
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
(int) width, (int) height);
float margTop = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
-36, getResources().getDisplayMetrics());
if (i > startpos) {
params.setMargins(0, -57, 0, 0);
}
b.setLayoutParams(params);
// b.bringToFront();
// b.invalidate();
b.setVisibility(View.VISIBLE);
return b;
我不会尝试复制每个按钮的侦听器，而会将按钮视为组。 当你点击一个组内的按钮时，它会分成两组：按钮上面有按钮，以及你将要离开的东西。 然后该组被拖放到其他组中。
正如Templerschaf所说，这些组可能是LinearLayouts：
这很像ListView动画。 看到：
https://www.youtube.com/watch?v=_BZIvjMgH-Q
https://www.youtube.com/watch?v=mwE61B56pVQ
https://github.com/bauerca/drag-sort-listview/blob/master/library/src/com/mobeta/android/dslv/DragSortListView.java
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