Android 常见的四种对话框实例讲解

1、对话框通知(dialog notification)

当你的应用需要显示一个进度条或需要用户对信息进行确认时，可以使用对话框来完成。

下面代码将打开一个如图所示的对话框：

public void click1(view view) {
alertdialog.builder builder = new builder(this);
builder.settitle("工学1号馆");
builder.seticon(r.drawable.ic_launcher);
builder.setmessage("浏览wuyudong的博客?");
builder.setpositivebutton("确定", new onclicklistener() {
@override
public void onclick(dialoginterface dialog, int which) {
uri uri = uri.parse("http://www.wuyudong.com/");// 打开链接
intent intent = new intent(intent.action_view, uri);
startactivity(intent);
}
});
builder.setnegativebutton("取消", new onclicklistener() {
@override
public void onclick(dialoginterface dialog, int which) {
dialog.cancel();
}
});
alertdialog dialog = builder.create();
dialog.show();
}

2、创建带单选项列表的对话框

public void click2(view view) {
alertdialog.builder builder = new builder(this);
builder.settitle("单选对话框");
final string[] items = new string[] { "java", ".net", "php" };
builder.setsinglechoiceitems(items, 0, new onclicklistener() {
@override
public void onclick(dialoginterface dialog, int which) {
toast.maketext(mainactivity.this, items[which] + "被点击了", 0)
.show();
}
});
builder.show();
}

3、创建带多选项列表的对话框

public void click3(view view) {
alertdialog.builder builder = new builder(this);
builder.settitle("多选对话框");
final string[] items = new string[] { "java", ".net", "php", "c++" };
builder.setmultichoiceitems(items, new boolean[] { true, false, false,
true }, new onmultichoiceclicklistener() {
@override
public void onclick(dialoginterface dialog, int which,
boolean ischecked) {
toast.maketext(mainactivity.this, items[which] + ischecked, 0)
.show();
}
});
builder.setnegativebutton("取消", new onclicklistener() {
@override
public void onclick(dialoginterface dialog, int which) {
dialog.cancel();
}
});
builder.show();
}

4、进度对话框(progressdialog)

使用代码progressdialog.show(progressdialogactivity.this, "请稍等", "数据正在加载中...", true);创建并显示一个进度对话框。
调用setprogressstyle()方法设置进度对话框风格。有两种风格：

progressdialog.style_spinner 旋体进度条风格 (为默认风格)
progressdialog.style_horizontal 横向进度条风格
public void click4(view view) {
progressdialog pd = new progressdialog(this);
pd.settitle("提醒");
pd.setmessage("正在加载中......");
pd.show();
}

下面的代码实现横向进度条风格：

public void click5(view view) {
final progressdialog pd = new progressdialog(this);
pd.setprogressstyle(progressdialog.style_horizontal);
pd.setmax(100);
pd.show();
new thread() {
public void run() {
for (int i = 0; i < 100; i++) {
pd.setprogress(i);
try {
thread.sleep(20);
} catch (interruptedexception e) {
e.printstacktrace();
}
}
pd.dismiss();
};
}.start();
} 

以上所述是小编给大家介绍的android 常见的四种对话框实例讲解，希望对大家有所帮助