package com.tejia.lijin.app.util.ui.dialog;
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import android.app.Dialog;
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import android.content.DialogInterface;
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import android.view.View;
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import java.util.ArrayList;
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import java.util.List;
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public class DialogManage {
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private List<DialogBean> dialogList = new ArrayList<>();//还未显示的dialog的list，这里是无序的
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private List<DialogBean> currentDialogList = new ArrayList<>();//当前显示的dialog的list，最后一个就是显示在最上面的，是按优先级正序的。这里需要理解下，因为只有比上一个dialog优先级高的时候，才会显示并加入到这个list。
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public DialogManage() {
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}
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/**
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* 添加一个dialog，什么时候显示dialog交给DialogManage来管理
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* 默认最低优先级
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*
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* @param dialog
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*/
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public void addDialog(Dialog dialog) {
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if (dialog != null) {
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DialogBean dialogBean = new DialogBean();
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dialogBean.setDialog(dialog);
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dialogBean.setDialogView(dialog.getWindow().getDecorView());
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show(dialogBean);
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}
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}
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/**
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* 添加一个dialog，什么时候显示dialog交给DialogManage来管理
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*
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* @param dialog
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* @param priority 优先级
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*/
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public void addDialog(Dialog dialog, int priority) {
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if (dialog != null) {
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DialogBean dialogBean = new DialogBean();
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dialogBean.setDialog(dialog);
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dialogBean.setDialogView(dialog.getWindow().getDecorView());
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dialogBean.setPriority(priority);
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show(dialogBean);
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}
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}
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private void show(final DialogBean newDialog) {
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//都需要设置监听
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newDialog.getDialog().setOnDismissListener(new DialogInterface.OnDismissListener() {
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@Override
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public void onDismiss(DialogInterface dialog) {
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currentDialogList.remove(newDialog);//关闭后从显示列表上删除
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nextDialog();
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}
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});
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//先计算出要弹出的弹窗
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if (currentDialogList.size() == 0) {//没有弹窗显示时
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//直接显示新的dialog
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newDialog.getDialog().show();
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currentDialogList.add(newDialog);//加入到已显示的列表
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} else {//有弹窗显示时
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if (newDialog.getPriority() > currentDialogList.get(currentDialogList.size() - 1).getPriority()) {//优先级高于当前显示的dialog
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//显示新的dialog
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newDialog.getDialog().show();
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//之前显示的弹窗暂时隐藏掉
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currentDialogList.get(currentDialogList.size() - 1).getDialogView().setVisibility(View.INVISIBLE);
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currentDialogList.add(newDialog);//加入到已显示的列表
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} else {//优先级和当前的dialog相等或者低于当前
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dialogList.add(newDialog);//加入到待显示列表
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}
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}
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}
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/**
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* 计算得出下一个要展示的dialog
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*/
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private void nextDialog() {
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//未显示列表里无dialog时
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if (dialogList.size() == 0) {
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//显示列表不为空时
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if (currentDialogList.size() > 0) {
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//继续展示之前已经展示出来的
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currentDialogList.get(currentDialogList.size() - 1).getDialogView().setVisibility(View.VISIBLE);
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} else {
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//显示列表为空时
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//不做处理
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}
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}
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//未显示列表里有dialog时
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else {
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//显示列表不为空时
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if (currentDialogList.size() > 0) {
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//1、先拿取已显示list里优先级最高的
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DialogBean currentDialogBean = currentDialogList.get(currentDialogList.size() - 1);//最后一个就是优先级最高的
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//2、再拿取未显示list里优先级最高的
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DialogBean notShowDialogBean = dialogList.get(0);
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for (int i = 0; i < dialogList.size(); i++) {
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if (notShowDialogBean.getPriority() < dialogList.get(i).getPriority()) {
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notShowDialogBean = dialogList.get(i);
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}
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}
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//3、对比出优先级最高的，如果优先级一样。那么依旧显示之前显示的
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//4、显示优先级较高的
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if (currentDialogBean.getPriority() < notShowDialogBean.getPriority()) {//未展示的优先级较高
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notShowDialogBean.getDialog().show();//展示未展示的
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currentDialogList.add(notShowDialogBean);//加入到展示列表里
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dialogList.remove(notShowDialogBean);//从未显示列表里删除
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} else {
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//继续展示之前已经展示出来的
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currentDialogList.get(currentDialogList.size() - 1).getDialogView().setVisibility(View.VISIBLE);
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}
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} else {
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//显示列表为空时
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//1、再拿取未显示list里优先级最高的
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DialogBean notShowDialogBean = dialogList.get(0);
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for (int i = 0; i < dialogList.size(); i++) {
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if (notShowDialogBean.getPriority() < dialogList.get(i).getPriority()) {
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notShowDialogBean = dialogList.get(i);
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}
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}
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//2、显示优先级较高的
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notShowDialogBean.getDialog().show();
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currentDialogList.add(notShowDialogBean);//加入到展示列表里
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dialogList.remove(notShowDialogBean);//从未显示列表里删除
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}
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}
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}
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public static class DialogBean {
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private Dialog dialog;
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private View dialogView;//dialog的view
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private int priority;//优先级
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public Dialog getDialog() {
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return dialog;
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}
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public void setDialog(Dialog dialog) {
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this.dialog = dialog;
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}
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public View getDialogView() {
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return dialogView;
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}
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public void setDialogView(View dialogView) {
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this.dialogView = dialogView;
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}
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public int getPriority() {
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return priority;
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}
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public void setPriority(int priority) {
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this.priority = priority;
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}
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}
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}
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