上次已经说过那种比较简单的alertDialog,这次我在上次的基础上加大了一点难度,对话框的主体内容使用列表、单选框、复选框。以及自定义对话框的使用。这次的内容可能在自定义对话框上比较复杂一些。其他几种都是比较简单的
1.列表类型的对话框
final CharSequence[] items={"海南","浙江","武汉"}; AlertDialog.Builder builder=new AlertDialog.Builder(this); builder.setTitle("你最想去什么地方"); builder.setItems(items,new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int item) { // TODO Auto-generated method stub Toast.makeText(getApplicationContext(), items[item],Toast.LENGTH_LONG).show(); } }); //创建对话框 AlertDialog alert = builder.create(); //把对话框显示在手机屏幕上 alert.show();下面是运行效果图
2.单选按钮类型的对话框
builder.setSingleChoiceItems(items,-1,new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int item) { // TODO Auto-generated method stub Toast.makeText(getApplicationContext(), items[item],Toast.LENGTH_LONG).show(); } });
3.复选框类型
boolean[] b={false,false,true};
builder.setMultiChoiceItems(items,b,new DialogInterface.OnMultiChoiceClickListener() { @Override public void onClick(DialogInterface dialog, int which, boolean isChecked) { // TODO Auto-generated method stub StringBuilder str=new StringBuilder(); if(isChecked){ Toast.makeText(getApplicationContext(), str.append(items[which]),Toast.LENGTH_LONG).show(); } } });
4.自定义对话框
这里布局还是写在xml文件里,下面是我的xml文件
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/layout_root" android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="fill_parent" android:padding="10dp"> <ImageView android:id="@+id/image" android:layout_width="wrap_content" android:layout_height="fill_parent" android:layout_marginRight="10dp" /> <TextView android:id="@+id/text" android:layout_width="wrap_content" android:layout_height="fill_parent" android:textColor="#FFF" /> </LinearLayout>
/* AUTO-GENERATED FILE. DO NOT MODIFY. * * This class was automatically generated by the * aapt tool from the resource data it found. It * should not be modified by hand. */ package org.lxh.activity; public final class R { public static final class attr { } public static final class drawable { public static final int android=0x7f020000; public static final int icon=0x7f020001; } public static final class id { public static final int image=0x7f050001; public static final int layout_root=0x7f050000; public static final int text=0x7f050002; } public static final class layout { public static final int custom_dialog=0x7f030000; public static final int main=0x7f030001; } public static final class string { public static final int app_name=0x7f040001; public static final int hello=0x7f040000; public static final int text=0x7f040002; } }
//使用LayoutInflater展开布局 LayoutInflater inflater = (LayoutInflater) this.getSystemService(LAYOUT_INFLATER_SERVICE); //取得布局对象 View layout = inflater.inflate(R.layout.custom_dialog, (ViewGroup) findViewById(R.id.layout_root)); TextView text = (TextView) layout.findViewById(R.id.text); text.setText("Hello, this is a custom dialog!"); ImageView image = (ImageView) layout.findViewById(R.id.image); image.setImageResource(R.drawable.android); AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setView(layout); AlertDialog alertDialog = builder.create(); alertDialog.setTitle("我的自定义对话框"); alertDialog.show();
很简单吧,暂时就到这里吧。