Android使用setCustomTitle()方法自定义对话框标题

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：

<?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;
}
} 
}

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。