Android对话框自定义标题 对话框标题美化操作

android自带的对话框标题不好看，如果我们需要给弹出的对话框设置一个自己定义的标题，可以使用alertdialog.builder的setcustomtitle()方法。 

定义一个对话框标题的title.xml文件： 

<?xml version="1.0" encoding="utf-8"?>
<linearlayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:background="@color/white"
  android:gravity="center_vertical"
  android:orientation="vertical" >
  
  <linearlayout
    android:id="@+id/patient_top"
    android:layout_width="match_parent"
    android:layout_height="50dp"
    android:layout_alignparenttop="true"
    android:background="@color/green"
    android:gravity="center_vertical|center_horizontal"
    android:orientation="vertical" >

    <textview
      android:id="@+id/txtpatient"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:text="选择城市"
      android:textcolor="@color/white"
      android:textsize="20sp" />
    
  </linearlayout>

</linearlayout>

mainactivity的布局文件： 

<linearlayout xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:tools="http://schemas.android.com/tools"
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:gravity="center_vertical|center_horizontal"
  android:orientation="vertical"
  android:paddingbottom="@dimen/activity_vertical_margin"
  android:paddingleft="@dimen/activity_horizontal_margin"
  android:paddingright="@dimen/activity_horizontal_margin"
  android:paddingtop="@dimen/activity_vertical_margin"
  tools:context="com.hzhi.dialogtest.mainactivity" >

  <button
    android:id="@+id/btn01"
    android:layout_width="150dp"
    android:layout_height="wrap_content"
    android:text="选择城市1" />

  <button
    android:id="@+id/btn02"
    android:layout_width="150dp"
    android:layout_height="wrap_content"
    android:text="选择城市2" />

</linearlayout>

mainactivity.java文件： 

package com.hzhi.dialogtest;

import android.support.v7.app.actionbaractivity;
import android.app.alertdialog;
import android.content.dialoginterface;
import android.os.bundle;
import android.view.layoutinflater;
import android.view.view;
import android.view.view.onclicklistener;
import android.widget.button;

public class mainactivity extends actionbaractivity implements onclicklistener{
  
  final string[] cities = new string[6];
  button button_01, button_02;

  @override
  protected void oncreate(bundle savedinstancestate) {
    super.oncreate(savedinstancestate);
    setcontentview(r.layout.activity_main);
    initview();
  }
  
  private void initview(){    
      cities[0] = "北京";
      cities[1] = "上海";
      cities[2] = "深圳";
      cities[3] = "广州";
      cities[4] = "杭州";
      cities[5] = "成都";      
    
    button_01 = (button) findviewbyid(r.id.btn01);
    button_01.setonclicklistener(this);    
    button_02 = (button) findviewbyid(r.id.btn02);
    button_02.setonclicklistener(this);    
  }

  @override
  public void onclick(view v) {
    // todo auto-generated method stub
    switch (v.getid()){
    case r.id.btn01:
      alertdialog.builder builder1 = new alertdialog.builder(mainactivity.this);
      builder1.setitems(cities, new dialoginterface.onclicklistener()
      {
        @override
        public void onclick(dialoginterface dialog, int which)
        {

        }
      });      
      builder1.settitle("选择城市");
      builder1.show();
      break;
    case r.id.btn02:
      layoutinflater layoutinflater = layoutinflater.from(mainactivity.this);
      view mtitleview = layoutinflater.inflate(r.layout.title, null);
      alertdialog.builder builder2 = new alertdialog.builder(mainactivity.this);
      builder2.setitems(cities, new dialoginterface.onclicklistener()
      {
        @override
        public void onclick(dialoginterface dialog, int which)
        {

        }
      });
      builder2.setcustomtitle(mtitleview);
      builder2.show();
      break;
    }
    
  }
  
}

运行效果如下，左边是点击第一个按钮，弹出android系统自带的对话框(直接用settitle()设置标题)；右边是点击第二个按钮，首先inflate一个view，然后用setcustomtitle()方法把该view设置成对话框的标题。

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。