android有自带的对话框标题，但是不太美观，如果要给弹出的对话框设置一个自定义的标题，使用alertdialog.builder的setcustomtitle()方法。
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。
定义一个对话框标题的title.xml文件：
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<?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" ><linearlayoutandroid: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" ><textviewandroid: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：
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<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" ><buttonandroid:id="@+id/btn01"android:layout_width="150dp"android:layout_height="wrap_content"android:text="选择城市1" /><buttonandroid:id="@+id/btn02"android:layout_width="150dp"android:layout_height="wrap_content"android:text="选择城市2" /></linearlayout> |
mainactivity.java文件：
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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;@overrideprotected 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); }@overridepublic void onclick(view v) {// todo auto-generated method stubswitch (v.getid()){case r.id.btn01:alertdialog.builder builder1 = new alertdialog.builder(mainactivity.this);builder1.setitems(cities, new dialoginterface.onclicklistener(){@overridepublic 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(){@overridepublic void onclick(dialoginterface dialog, int which){}});builder2.setcustomtitle(mtitleview);builder2.show();break;}} } |
以上所述是小编给大家分享的android使用setcustomtitle()方法自定义对话框标题，希望对大家有所帮助。
