Android RemoveViewAt不删除每个视图

每次玩家在我的游戏中移动时，我都会尝试遍历我的RelativeLayout并删除除我的地图之外的所有视图，而我的地图可以处理所有点击。我在使用gameActivityRelativeLayout.RemoveAllView时发现；它会弄乱ontouchevent代码。我循环遍历每个子视图并将它们全部删除，但不知何故，它们并没有全部删除。我已经进行了广泛的搜索并尝试了许多方法，但我无法找到答案

if (GameActivity.gameActivityRelativeLayout != null) {
    activity_game.runOnUiThread(new Runnable() {
        @Override
        public void run() {
            //remove all views except for mapImageView
            for (int i = 0; i < GameActivity.gameActivityRelativeLayout.getChildCount(); i++){
                View tmpView = GameActivity.gameActivityRelativeLayout.getChildAt(i);
                if (!(tmpView instanceof MapImageView)){ //remove all views other than mapImageView
                    GameActivity.gameActivityRelativeLayout.removeViewAt(i);
                }
            }

            Log.i("jay", "====Below view should only be mapImageView1====");
            for (int i = 0; i < GameActivity.gameActivityRelativeLayout.getChildCount(); i++){
                View tmpView = GameActivity.gameActivityRelativeLayout.getChildAt(i);
                Log.i("jay", "View: " + tmpView + "tmpView.getTag(R.id.TAG_ID): " + tmpView.getTag(R.id.TAG_ID));
            }
            Log.i("jay", "====Above view should only be mapImageView1====");

            //removing all and then readding mapImageView screwed up the ontouchevent code
            //GameActivity.gameActivityRelativeLayout.removeAllViews();
            //GameActivity.gameActivityRelativeLayout.addView(GameActivity.mapImageView);

            //add all of the mob/npcs/enemy players/tradeskills/etc. to the screen
            for (ImageView temp : MapImageView.tmpImageViewPool) {
                if (temp.getParent() != GameActivity.gameActivityRelativeLayout){
                    temp.invalidate();
                    GameActivity.gameActivityRelativeLayout.addView(temp);
                }
            }

            GameActivity.gameActivityRelativeLayout.invalidate();
            GameActivity.mapImageView.invalidate();
        }
    });
}

---

原因是当我们像这样开始删除时，子位置不是唯一的。删除位置0处的视图后。位置1处的视图变为位置0。所以有一种方法可以做到这一点

int count = GameActivity.gameActivityRelativeLayout.getChildCount();

    while(count>1) {

            for (int i = 0; i < GameActivity.gameActivityRelativeLayout.getChildCount(); i++){
    View tmpView = GameActivity.gameActivityRelativeLayout.getChildAt(i);
    if (!(tmpView instanceof MapImageView)) { //remove all views other than mapImageView
    GameActivity.gameActivityRelativeLayout.removeViewAt(i);
                                            }            
}
    count = GameActivity.gameActivityRelativeLayout.getChildCount();
    }

---

如果您希望iterate Child通过某些功能删除其中一些，例如，所有ImageView或具有某个标记的视图-向后执行迭代：

for (int i = someParentLayout.getChildCount() - 1; i > -1; i--) {
        View v = someParentLayout.getChildAt(i);
        if (v instanceof ImageView) {
            someParentLayout.removeViewAt(i);
        }
    }

---

在这种情况下，每次迭代后，孩子的数量都会减少，但这不会影响您

！非常感谢你。我不知道它是以这样的方式被移除的。

for (int i = someParentLayout.getChildCount() - 1; i > -1; i--) {
        View v = someParentLayout.getChildAt(i);
        if (v instanceof ImageView) {
            someParentLayout.removeViewAt(i);
        }
    }