android自定义AlertDialog对话框

前面一篇文章介绍了alertdialog的四种简单使用，但是有些时候为了让整个app的风格统一，或者说前面的四种形式不符合项目中的需求，这个时候就需要我们自定义alertdialog了。直接上代码

customalertdialog:

import android.app.dialog; 
import android.content.context; 
import android.os.bundle; 
import android.view.view; 
import android.widget.button; 
import android.widget.textview; 
 
/** 
 * created by yk on 2017/1/17. 
 */ 
 
public class customalertdialog extends dialog implements view.onclicklistener { 
 
 
 
 public interface ondialogbuttonclicklistener { 
  /** 
   * 点击按钮的回调方法 
   * 
   * @param requestcode 
   * @param ispositive 
   */ 
  void ondialogbuttonclick(int requestcode, boolean ispositive); 
 } 
 
 private context context; 
 private string title; 
 private string message; 
 private string strpositive; 
 private string strnegative; 
 private int requestcode; 
 private ondialogbuttonclicklistener listener; 
 
 public customalertdialog(context context, string title, string message, int requestcode, 
        ondialogbuttonclicklistener listener) { 
  super(context, r.style.mydialog); 
  this.context=context; 
  this.title=title; 
  this.message=message; 
  this.requestcode=requestcode; 
  this.listener=listener; 
 
 } 
 
 private textview tvtitle; 
 private textview tvmessage; 
 private button btnpositive; 
 private button btnnegative; 
 
 @override 
 protected void oncreate(bundle savedinstancestate) { 
  super.oncreate(savedinstancestate); 
  setcontentview(r.layout.alert_dialog); 
//  setcancelable(false);//设置点击对话框外部和按返回键都不可以取消 
//  setcanceledontouchoutside(false);//设置点击对话框外部是否可以取消，默认是不可以取消（但是点返回键可以取消） 
 
  tvtitle = (textview) findviewbyid(r.id.tvalertdialogtitle); 
  tvmessage = (textview) findviewbyid(r.id.tvalertdialogmessage); 
  btnpositive = (button) findviewbyid(r.id.btnalertdialogpositive); 
  btnnegative = (button) findviewbyid(r.id.btnalertdialognegative); 
 
  tvtitle.settext(title); 
  tvmessage.settext(message); 
 
  btnpositive.setonclicklistener(this); 
  btnnegative.setonclicklistener(this); 
 } 
 
 @override 
 public void onclick(view view) { 
  switch (view.getid()){ 
   case r.id.btnalertdialogpositive: 
    //确定按钮 
    listener.ondialogbuttonclick(requestcode,true); 
    break; 
   case r.id.btnalertdialognegative: 
    //取消按钮 
    listener.ondialogbuttonclick(requestcode,false); 
    break; 
  } 
  dismiss(); 
 } 
} 

 mainactivity:

package com.example.yk.dialogtest; 
 
import android.support.v7.app.appcompatactivity; 
import android.os.bundle; 
import android.widget.toast; 
 
public class customdialogactivity extends appcompatactivity implements customalertdialog.ondialogbuttonclicklistener { 
 
 private static final int request_code_first = 1; 
 
 @override 
 protected void oncreate(bundle savedinstancestate) { 
  super.oncreate(savedinstancestate); 
  setcontentview(r.layout.activity_custom_dialog); 
  customalertdialog alertdialog=new customalertdialog(this,"title","message",request_code_first,this); 
  alertdialog.show(); 
 
 } 
 
 @override 
 public void ondialogbuttonclick(int requestcode, boolean ispositive) { 
  if(requestcode==request_code_first && ispositive){ 
   toast.maketext(this, "点击了确定", toast.length_short).show(); 
  } else if (requestcode==request_code_first && !ispositive) { 
   toast.maketext(this, "点击了取消", toast.length_short).show(); 
  } 
 } 
} 

实现的效果：

如果我们需要自定义“确定”和“取消”按钮所显示的字，可以再写一个构造方法，比如：

public alertdialog(context context, string title, string message,string strpositive, string strnegative, int requestcode, ondialogbuttonclicklistener listener) { 
  super(context, r.style.mydialog); 
 
  this.context = context; 
  this.title = title; 
  this.message = message; 
  this.strpositive = strpositive; 
  this.strnegative = strnegative; 
  this.requestcode = requestcode; 
  this.listener = listener;  
 } 

if(!textutils.isempty(strpositive)){ 
   btnpositive.settext(strpositive); 
  } 
  if(!textutils.isempty(strnegative)){ 
   btnnegative.settext(strnegative); 
  } 

实现的效果：

源码(包括上篇文章中四种简单alertdialog的使用)：http://xiazai.jb51.net/201701/yuanma/androidalertdialog(jb51.net).rar

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。