AndroidStudio_android通过自定义来实现倒计时的AlertDialog

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截图,还是蛮漂亮的,当然大家可以按照自己的需求,去自己定义效果.

1.首先看一下:PromptDialog类,这个类中有些修改的地方,可以复制直接使用 ,当然也可以根据需要,去掉,倒计时的功能.

package com.baidu.idl.main.facesdk.utils; import android.app.Activity; import android.app.AlertDialog; import android.content.DialogInterface; import android.view.Gravity; import android.view.KeyEvent; import android.view.LayoutInflater; import android.view.View; import android.view.WindowManager; import android.widget.ImageView; import android.widget.TextView; import com.baidu.idl.main.facesdk.gatelibrary.R; import java.util.Timer; import java.util.TimerTask; import java.util.concurrent.locks.ReentrantLock; /** * 创建时间：2017/9/13. * 编写人：zhangr * 功能描述： */ public class PromptDialog { private AlertDialog dialog; private Activity parent_content; private String parent_title; //private static TimerTask task; private int countTime=0; private Timer timer =null; private TextView mTitle; public boolean timerExited =false; private ReentrantLock currentLock = new ReentrantLock(); public interface AlertDialogBtnClickListener { //确定 void clickNext1(); //否 void clickNext2(); //关闭 void closeListener(); } //设置标题 // public static void setTitle(Activity content,String title){ // parent_content =content; // parent_title=title; // Message msg = new Message(); // msg.what = 199; // handler.sendMessage(msg); // } // private static Handler handler = new Handler() // { // @Override // public void handleMessage(Message msg) { // super.handleMessage(msg); // switch (msg.what) // { // case 199: // View view = LayoutInflater.from(parent_content).inflate(R.layout.dialog_confrim, null); // TextView mTitle = view.findViewById(R.id.dialog_title); // //TextView dialog_confirm_bt = view.findViewById(R.id.dialog_confirm_bt); // //TextView dialog_cancel_bt = view.findViewById(R.id.dialog_cancel_bt); // mTitle.setText(parent_title); // dialog.setTitle(parent_title); // dialog.setMessage(parent_title); // break; // } // } // }; private TimerTask task = new TimerTask() { @Override public void run() { /** *要执行的操作 */ //finish(); // startActivity(new Intent(mContext, HomeActivity.class)); //countTime[0] =30; //PromptDialog.setTitle(FaceBodyCheckActivity.this,countTime[0] +"秒后退出测量?"); //normalDialog.setMessage(countTime[0] +"秒后退出测量?"); currentLock.lock(); try{ mTitle.setText(countTime +"秒后退出测量?"); }catch (Exception e) { e.printStackTrace();; } countTime = countTime - 1; if(countTime<=0){ // 实现页面跳转 //commLock.lock(); //logOutFrame(); //commLock.unlock(); timerExited =true; timer.cancel(); //finish(); // new Handler(new Handler.Callback() { // @Override // public boolean handleMessage(Message msg) { // // 实现页面跳转 // logOutFrame(); // finish(); // return true; // } // }).sendEmptyMessageDelayed(0, 2000); //3秒以后,发送空消息 } currentLock.unlock(); } }; public void showConfirm(Activity content, String title, final AlertDialogBtnClickListener confirm) { //1.首先销毁上次的对话框 if(dialog!=null){ dialog.dismiss(); } //int[] position = new int[2]; View view = LayoutInflater.from(content).inflate(R.layout.dialog_confrim, null); mTitle = view.findViewById(R.id.dialog_title); TextView dialog_confirm_bt = view.findViewById(R.id.dialog_confirm_bt); TextView dialog_cancel_bt = view.findViewById(R.id.dialog_cancel_bt); mTitle.setText(title); //设定倒计时时间 timerExited =false; countTime = 30; timer = new Timer(); AlertDialog.Builder builder = new AlertDialog.Builder(content); builder.setView(view); builder.setCancelable(true); //返回键dismiss //创建对话框 //final AlertDialog dialog = builder.create(); dialog = builder.create(); dialog.setCancelable(false); dialog.setOnKeyListener(new DialogInterface.OnKeyListener() { @Override public boolean onKey(DialogInterface dialog, int keyCode, KeyEvent event) { if (keyCode == KeyEvent.KEYCODE_SEARCH) { return true; } else { return false; //默认返回 false } } }); dialog.getWindow().setBackgroundDrawableResource(android.R.color.transparent);//去掉圆角背景背后的棱角 // dialog.setCanceledOnTouchOutside(cancelableTouchOut); //失去焦点dismiss dialog_confirm_bt.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { dialog.dismiss(); confirm.clickNext1(); } }); dialog_cancel_bt.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { dialog.dismiss(); confirm.clickNext2(); } }); WindowManager.LayoutParams wlp =dialog.getWindow().getAttributes(); wlp.gravity = Gravity.TOP | Gravity.LEFT; wlp.x=460; wlp.y=150; try{ dialog.show(); }catch (Exception e){ e.printStackTrace(); } dialog.getWindow().setLayout(1000,1000); timer.schedule(task, 1000,1000); // Window window = builder.getWindow(); // window.clearFlags(WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM); // window.setContentView(R.layout.alertdialog); } public static void showNext(Activity content, String title, final AlertDialogBtnClickListener next1Listener) { View view = LayoutInflater.from(content).inflate(R.layout.dialog_next, null); TextView mTitle = view.findViewById(R.id.dialog_title); TextView dialog_next1_bt = view.findViewById(R.id.dialog_next1_bt); TextView dialog_next2_bt = view.findViewById(R.id.dialog_next2_bt); ImageView dialog_close = view.findViewById(R.id.dialog_close); mTitle.setText(title); AlertDialog.Builder builder = new AlertDialog.Builder(content); builder.setView(view); builder.setCancelable(true); //返回键dismiss //创建对话框 final AlertDialog dialog = builder.create(); dialog.getWindow().setBackgroundDrawableResource(android.R.color.transparent);//去掉圆角背景背后的棱角 dialog.setCancelable(false); dialog.setOnKeyListener(new DialogInterface.OnKeyListener() { @Override public boolean onKey(DialogInterface dialog, int keyCode, KeyEvent event) { if (keyCode == KeyEvent.KEYCODE_SEARCH) { return true; } else { return false; //默认返回 false } } }); // dialog.setCanceledOnTouchOutside(cancelableTouchOut); //失去焦点dismiss dialog_next1_bt.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { dialog.dismiss(); next1Listener.clickNext1(); } }); dialog_next2_bt.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { dialog.dismiss(); next1Listener.clickNext2(); } }); dialog_close.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { dialog.dismiss(); next1Listener.closeListener(); } }); dialog.setCancelable(false); dialog.setOnKeyListener(new DialogInterface.OnKeyListener() { @Override public boolean onKey(DialogInterface dialog, int keyCode, KeyEvent event) { if (keyCode == KeyEvent.KEYCODE_SEARCH) { return true; } else { return false; //默认返回 false } } }); dialog.show(); } } 

2.然后我们去看看这里面使用到的一些配置文件和图片等资源

用到的xml界面文件是这个:

D:\YdFaceApp\gatelibrary\src\main\res\layout\dialog_confrim.xml

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/dialog_loading_view" android:layout_width="match_parent" android:layout_height="match_parent" android:gravity="center" android:orientation="vertical"> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_margin="@dimen/x30" android:background="@drawable/bg_bai_r4" android:orientation="vertical"> <TextView android:id="@+id/dialog_title" android:layout_width="match_parent" android:layout_height="wrap_content" android:gravity="center" android:paddingTop="@dimen/x40" android:paddingBottom="@dimen/x40" android:text="确定退出测量？" android:textColor="@color/hei" android:textSize="@dimen/x16"> </TextView> <TextView android:layout_width="match_parent" android:layout_height="0.5dp" android:background="@color/hui"> </TextView> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal"> <TextView android:id="@+id/dialog_confirm_bt" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="center" android:padding="@dimen/x20" android:text="确定" android:textColor="@color/main_select" android:textSize="@dimen/x16"> </TextView> <TextView android:layout_width="0.5dp" android:layout_height="match_parent" android:layout_marginTop="5dp" android:layout_marginBottom="5dp" android:background="@color/hui" tools:ignore="Suspicious0dp"></TextView> <TextView android:id="@+id/dialog_cancel_bt" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="center" android:padding="@dimen/x20" android:text="取消" android:textSize="@dimen/x16"> </TextView> </LinearLayout> </LinearLayout> </LinearLayout>

3.然后里面使用到的一些dimen

D:\YdFaceApp\gatelibrary\src\main\res\values\lay_x.xml

<?xml version="1.0" encoding="utf-8"?> <resources> <dimen name="x10">10dp</dimen> <dimen name="x12">12dp</dimen> <dimen name="x14">14dp</dimen> <dimen name="x16">16dp</dimen> <dimen name="x18">18dp</dimen> <dimen name="x20">20dp</dimen> <dimen name="x22">22dp</dimen> <dimen name="x24">24dp</dimen> <dimen name="x26">26dp</dimen> <dimen name="x28">28dp</dimen> <dimen name="x30">30dp</dimen> <dimen name="x40">40dp</dimen> <dimen name="x50">50dp</dimen> <dimen name="x60">60dp</dimen> <dimen name="x70">70dp</dimen> <dimen name="x80">80dp</dimen> </resources>

4.然后使用到的颜色文件

D:\YdFaceApp\gatelibrary\src\main\res\values\colors.xml 可能有些用不到的,到时候复制过去,删除就可以了.

<?xml version="1.0" encoding="utf-8"?> <!-- ~ Copyright (C) 2018 Baidu, Inc. All Rights Reserved. --> <resources> <color name="pay_bg">#f2f2f2</color> <color name="login_bg">#f4f7fa</color> <color name="login_edit_bg">#eeeeee</color> <color name="login_submit">#19aa8d</color> <color name="hei6">#</color> <color name="hui">#eeeeee</color> <color name="hui_48">#</color> <color name="white_blue">#b8f7e0</color> </resources> 

5.然后使用到的

@drawable/bg_bai_r4 这个自定义的图形

D:\YdFaceApp\gatelibrary\src\main\res\drawable\bg_bai_r4.xml

<?xml version="1.0" encoding="utf-8"?> <layer-list xmlns:android="http://schemas.android.com/apk/res/android"> <item> <shape android:shape="rectangle"> <solid android:color="@color/white" /> <!-- 圆角的半径 --> <corners android:radius="15dp" /> </shape> </item> </layer-list>

6.然后需要的

R.id.dialog_confirm_bt

R.id.dialog_cancel_bt

在 D:\YdFaceApp\gatelibrary\src\main\res\layout\dialog_confrim.xml 文件中已经有了,然后我们去看,如何使用这个alertDialog去.

7.可以看到下面就是使用的过程了

 //1.这里是采用自己设计的dialog画面来进行 final boolean[] isNeedExit = {true}; final Integer[] countTime = {32}; final boolean isBooleanExit = false; final Timer timer = new Timer(); final PromptDialog promptDialog =new PromptDialog(); final TimerTask task = new TimerTask() { @Override public void run() { /** *要执行的操作 */ countTime[0] = countTime[0] - 1; if(countTime[0]<=0){ if(promptDialog.timerExited){ // 通过这个promptDialog.timerExited可以判断,promptDialog内部的倒计时timer是否已经倒计时结束 // 实现页面跳转 .....要执行的业务逻辑 timer.cancel(); finish(); } } } }; new Handler(new Handler.Callback() { @Override public boolean handleMessage(Message msg) { try{ //实现页面跳转 promptDialog.showConfirm(FaceBodyCheckActivity.this, "确定退出测量？", new PromptDialog.AlertDialogBtnClickListener() { @Override public void clickNext1() { //确定按钮 new Handler(new Handler.Callback() { @Override public boolean handleMessage(Message msg) { Toast.makeText(FaceBodyCheckActivity.this,"3秒后退出测量",Toast.LENGTH_LONG).show(); //3.3秒以后调用退出接口 isNeedExit[0] =false; new Handler(new Handler.Callback() { @Override public boolean handleMessage(Message msg) { // 实现页面跳转 //下面是要实现的业务逻辑 commLock.lock(); logOutFrame(); commLock.unlock(); timer.cancel(); finish(); return true; } }).sendEmptyMessageDelayed(0, 4000); //3秒以后,发送空消息 return true; } }).sendEmptyMessageDelayed(0, 600); //3秒以后,发送空消息 } @Override public void clickNext2() { //取消按钮 isNeedExit[0] =false; timer.cancel(); } @Override public void closeListener() { //关闭按钮 } }); //这里就是判断,当第一次进来的时候,先去开启timer,进行倒计时 //开启timer,注意在PromptDialog中也有一个timer,那个timer //是用来显示倒计时用的. if(isNeedExit[0]){ timer.schedule(task, 1000,1000); } }catch (Exception e){ e.printStackTrace(); } return true; } }).sendEmptyMessageDelayed(0, 4000); //3秒以后,发送空消息

去看看代码,应该就能明白了,不过我还是要解释一下:

在PromptDialog中有个timer,我们可以在里面写上,需要显示倒计时多长时间,他就会自动倒计时了,然后

在PromptDialog中还有一个变量timerExited,如果PromptDialog中的那个timer倒计时完了,到0了,那么

它里面的这个PromptDialog,就把timerExited设置为true,表示已经倒计时结束.

然后可以看到使用这个PromptDialog的时候,同样我也用了一个timer倒计时,等这个倒计时完了以后,

我会去判断PromptDialog中的那个timerExited是不是true了,如果是true,表示promptDialog的timer也倒计时完了

这个时候,我就可以做业务处理, 比如倒计时结束后是自动退出界面啊…还是怎么样,上面是自动退出界面.