Android实现Dialog队列

迷南。 2023-10-03 18:23 25阅读 0赞

public class DialogQueueUtils {
    
        private static final String TAG = "DialogQueueUtils";
        private MyQueue mMyQueue;
    
        private Dialog mCurrentDialog = null;//当前显示的Dialog
    
        private DialogQueueUtils() {
            mMyQueue = new MyQueue();
        }
    
        public static DialogQueueUtils getInstance() {
            return DialogQueueHolder.singleton;
        }
    
        /**
         * 单例模式->静态内部类<br/>
         * 多线程情况下，使用合理一些,推荐
         */
        static class DialogQueueHolder {
            private static DialogQueueUtils singleton = new DialogQueueUtils();
        }
    
        public void addDialog(List<Dialog> dialogs){
            for (Dialog dialog : dialogs) {
                if (dialog != null){
                    mMyQueue.offer(dialog);
                }
            }
        }
    
        public void addDialog(Dialog dialog){
            if (dialog != null){
                mMyQueue.offer(dialog);
            }
        }
    
        public void show(){
            if (mCurrentDialog == null){
                //从队列中拿出一个Dialog实例,并从列表中移除
                mCurrentDialog = mMyQueue.poll();
                //当队列为空的时候拿出来的会是null
                if (mCurrentDialog != null){
                    mCurrentDialog.show();
                    mCurrentDialog.setOnDismissListener(new DialogInterface.OnDismissListener() {
                        @Override
                        public void onDismiss(DialogInterface dialog) {
                            //这边设置了dismiss监听,在监听回调中再次调用show方法,可以获取下一个弹窗
                            mCurrentDialog = null;
                            show();
                        }
                    });
                }
            }
        }
    
        class MyQueue {
    
            private Queue<Dialog> mDialogQueue = new LinkedList<>();
    
            /**
             * 进队
             *
             * @param dialog
             */
            public void offer(Dialog dialog) {
                mDialogQueue.offer(dialog);
            }
    
            /**
             * 出队
             *
             * @return
             */
            public Dialog poll() {
                return mDialogQueue.poll();
            }
    
        }
    }

[Android实现Dialog队列 - 简书][Android_Dialog_ -]

[Android_Dialog_ -]: https://www.jianshu.com/p/6ee3b054965a