Android Dialog对话框

dialog的基本方法

//创建dialog
alertdialog.builder builder = new alertdialog.builder(mainactivity.this);

//设置标题图标
builder.seticon(r.drawable.ic_launcher);

//设置标题
builder.settitle("这是一个对话框");

//设置信息
builder.setmessage("是否要跳转？");

//确定按钮
setpositivebutton(charsequence text, dialoginterface.onclicklistener listener)

//取消按钮
setnegativebutton (charsequence text, dialoginterface.onclicklistener listener)

//忽略
setneutralbutton (charsequence text, dialoginterface.onclicklistener listener)

//显示对话框
show();

系统样式

1.下拉列表

alertdialog.builder builder = new alertdialog.builder(mainactivity.this);
         builder.seticon(r.drawable.ic_launcher);
         builder.settitle("选择一个城市");
         //下拉列表的数据源
         final string[] cities = {"北京", "上海", "广州", "深圳", "杭州"};
         builder.setitems(cities, new dialoginterface.onclicklistener(){
             @override
             public void onclick(dialoginterface dialog, int which){
                 toast.maketext(mainactivity.this, "你选择的城市为：" + cities[which], toast.length_short).show();
             }
 });
 builder.show();

2.单选框列表

alertdialog.builder builder = new alertdialog.builder(mainactivity.this);
        builder.seticon(r.drawable.ic_launcher);
        builder.settitle("请选择性别");
        final string[] sex = {"男", "女"};
        //第二个参数指定默认哪个单选框被勾中
        builder.setsinglechoiceitems(sex, 1, new dialoginterface.onclicklistener(){
            @override
            public void onclick(dialoginterface dialog, int which){
                   toast.maketext(mainactivity.this, "性别为：" + sex[which], toast.length_short).show();
            }
        });
        builder.setpositivebutton("确定", new dialoginterface.onclicklistener(){
            @override
            public void onclick(dialoginterface dialog, int which){
                        
            }
        });
        builder.setnegativebutton("取消", new dialoginterface.onclicklistener(){
            @override
            public void onclick(dialoginterface dialog, int which){
                        
            }
       });
builder.show();

3.多选框列表

string str;
alertdialog.builder builder = new alertdialog.builder(mainactivity.this);
builder.seticon(r.drawable.ic_launcher);
builder.settitle("选择你想看的电视剧");
final string[] hobbies = {"廷禧攻略", "扶摇", "香蜜沉沉烬如霜", "如懿传"};
//第二个参数代表哪几个选项被选择，需要传递一个boolean[]数组进去，其长度要和第一个参数的长度相同,如果null表示都不选
builder.setmultichoiceitems(hobbies, null, new dialoginterface.onmultichoiceclicklistener(){
　 @override
　　public void onclick(dialoginterface dialog, int which, boolean ischecked){
    　　if(ischecked){
    　　　　str.append(hobbies[which] + ", ");
    　　}
    　　toast.maketext(mainactivity.this, "选择的是：" + str.tostring(), toast.length_short).show();
    }
 });
builder.setpositivebutton("确定", new dialoginterface.onclicklistener(){
　　@override
　　public void onclick(dialoginterface dialog, int which){

    }
});
builder.setnegativebutton("取消", new dialoginterface.onclicklistener(){
　　@override
　　public void onclick(dialoginterface dialog, int which){

    }
});
builder.show();

 4.等待对话框

progressdialog waitingdialog= new progressdialog(mainactivity.this);
waitingdialog.settitle("等待加载中，请稍后...");
waitingdialog.setmessage("等待中...");
waitingdialog.setindeterminate(true);//采用不确定式的进度条
waitingdialog.setcancelable(false);//点击外部不取消对话框
waitingdialog.show();

5.进度条对话框

int maxpd = 100;
progressdialog progressdialog =  new progressdialog(mainactivity.this);
progressdialog.setprogress(0);//设置默认值
progressdialog.settitle("正在下载");
progressdialog.setprogressstyle(progressdialog.style_horizontal);//进度条样式
progressdialog.setmax(maxpd);//设置最大值
progressdialog.show();

自定义dialog

1.继承dialog

public class customdialog extends dialog {
//标题
protected textview hinttv;

//左边按钮
protected button doubleleftbtn;

//右边按钮
protected button doublerightbtn;

//输入框
public edittext edittext;

public customdialog(context context) {
    super(context, r.style.customdialogstyle);
}

@override
protected void oncreate(bundle savedinstancestate) {
    super.oncreate(savedinstancestate);
    this.setcancelable(false);  // 是否可以撤销
    setcontentview(r.layout.dialog_custom);

    hinttv = findviewbyid(r.id.tv_common_dialog_hint);
    doubleleftbtn =  findviewbyid(r.id.btn_common_dialog_double_left);
    doublerightbtn = findviewbyid(r.id.btn_common_dialog_double_right);
    edittext = findviewbyid(r.id.et_common_dialog);
}

//置右键文字和点击事件
public void setrightbutton(string rightstr, view.onclicklistener clicklistener) {
    doublerightbtn.setonclicklistener(clicklistener);
    doublerightbtn.settext(rightstr);
}

//设置左键文字和点击事件
public void setleftbutton(string leftstr, view.onclicklistener clicklistener) {
    doubleleftbtn.setonclicklistener(clicklistener);
    doubleleftbtn.settext(leftstr);
}

//设置提示内容
public void sethinttext(string str) {
    hinttv.settext(str);
    hinttv.setvisibility(view.visible);
}

//给两个按钮 设置文字
public void setbtntext(string leftstr, string rightstr) {
    doubleleftbtn.settext(leftstr);
    doublerightbtn.settext(rightstr);
}

}

2.自定义style

<style name="customdialogstyle" parent="@android:style/theme.dialog">
        <!-- 边框 -->
        <item name="android:windowframe">@null</item>

        <!-- 背景透明 -->
        <item name="android:windowbackground">@color/transparent</item>

        <!-- 无标题 -->
        <item name="android:windownotitle">true</item>

        <!-- 是否浮现在activity之上 -->
        <item name="android:windowisfloating">true</item>

        <!-- 半透明 -->
        <item name="android:windowistranslucent">false</item>

        <!-- 背景模糊 -->
        <item name="android:windowcontentoverlay">@null</item>

        <!-- 允许对话框的背景变暗 -->
        <item name="android:backgrounddimenabled">true</item>

        <!-- 字体颜色 -->
        <item name="android:textcolor">@color/white</item>
        <item name="android:edittextcolor">@color/white</item>
 </style>

3.自定义布局

<linearlayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/ll_common_dialog_layout"
    android:layout_width="500dp"
    android:layout_height="250dp"
    android:layout_margin="5dp"
    android:background="@drawable/background_info"
    android:orientation="vertical"
    android:gravity="center">

    <!--提示信息-->
    <textview
        android:id="@+id/tv_common_dialog_hint"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:textcolor="@color/white"
        android:textsize="27sp"/>
    <edittext
        android:id="@+id/et_common_dialog"
        android:layout_width="300dp"
        android:layout_height="wrap_content"
        android:textcolor="@color/back"
        android:inputtype="text|textnosuggestions"
        tools:ignore="labelfor"
        android:hint="请输入密码"/>
    
    <!--底部按钮-->
    <linearlayout
        android:id="@+id/ll_common_dialog_double"
        android:layout_width="360dp"
        android:layout_height="60dp"
        android:layout_margin="20dp"
        android:orientation="horizontal">

        <button
            android:id="@+id/btn_common_dialog_double_left"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:background="@drawable/btnselector"
            android:gravity="center"
            android:textcolor="@color/white"
            android:textsize="27dp"/>

        <button
            android:id="@+id/btn_common_dialog_double_right"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:background="@drawable/btnselector"
            android:gravity="center"
            android:textcolor="@color/white"
            android:textsize="27dp"/>
    </linearlayout>
</linearlayout>

4.ipad隐藏底部虚拟按键

//弹出dialog时隐藏底部虚拟按键
dialog.getwindow().getdecorview().setsystemuivisibility(view.system_ui_flag_hide_navigation);
dialog.getwindow().getdecorview().setonsystemuivisibilitychangelistener(new view.onsystemuivisibilitychangelistener() {
    @override
    public void onsystemuivisibilitychange(int visibility) {
        int uioptions =view.system_ui_flag_hide_navigation;
        if (build.version.sdk_int >= 19) {
            uioptions |= 0x00001000;
        } else {
            uioptions |= view.system_ui_flag_low_profile;
        }
        dialog.getwindow().getdecorview().setsystemuivisibility(uioptions);
    }
});

5.使用自定义dialog

customdialog dialog = new customdialog(this);
dialog.sethinttext("请输入密码");
dialog.setleftbutton("取消", new view.onclicklistener() {
       @override
       public void onclick(view v) {
           dialog.dismiss();
       }
});
dialog.setrightbutton("确定", new view.onclicklistener() {
        @override
        public void onclick(view v) {
               
        }
});
dialog.show();