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Android开发--WIFI输入密码Dialog的实现

来源：互联网 发布：js时间戳减去一秒 编辑：程序博客网 时间：2024/04/29 16:23

最终实现效果是点击一个未保存密码的WIFI信号时，弹出如下Dialog：


1、定义Dialog的布局文件：

<a target=_blank id="L1" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L1" rel="#L1" style="color: rgb(102, 102, 102); text-decoration: none;">  1</a><a target=_blank id="L2" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L2" rel="#L2" style="color: rgb(102, 102, 102); text-decoration: none;">  2</a><a target=_blank id="L3" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L3" rel="#L3" style="color: rgb(102, 102, 102); text-decoration: none;">  3</a><a target=_blank id="L4" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L4" rel="#L4" style="color: rgb(102, 102, 102); text-decoration: none;">  4</a><a target=_blank id="L5" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L5" rel="#L5" style="color: rgb(102, 102, 102); text-decoration: none;">  5</a><a target=_blank id="L6" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L6" rel="#L6" style="color: rgb(102, 102, 102); text-decoration: none;">  6</a><a target=_blank id="L7" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L7" rel="#L7" style="color: rgb(102, 102, 102); 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text-decoration: none;"> 31</a><a target=_blank id="L32" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L32" rel="#L32" style="color: rgb(102, 102, 102); text-decoration: none;"> 32</a><a target=_blank id="L33" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L33" rel="#L33" style="color: rgb(102, 102, 102); text-decoration: none;"> 33</a><a target=_blank id="L34" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L34" rel="#L34" style="color: rgb(102, 102, 102); text-decoration: none;"> 34</a>
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:gravity="center_horizontal"
    android:orientation="vertical"
    style="@style/DialogStyle">
    <EditText
        android:id="@+id/wifiDialogPsw"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:password="true"
        android:singleLine="true"/>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:layout_weight="2">
        <Button
            android:id="@+id/wifiDialogCancel"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:text="取消"
            android:layout_weight="1"/>
        <Button
            android:id="@+id/wifiDialogCertain"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:text="确定"
            android:layout_weight="1"/>
</LinearLayout>
</LinearLayout>
 来自CODE的代码片
WIFI_Dialog.XML

2、定义一个Dialog的子类

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package com.wifi.utils;
import android.app.Dialog;
import android.content.Context;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import com.example.controlpcpro.R;
public class WifiPswDialog extends Dialog{
private Button cancelButton;
private Button okButton;
private EditText pswEdit;
private OnCustomDialogListener customDialogListener;
public WifiPswDialog(Context context,OnCustomDialogListener customListener) {
//OnCancelListener cancelListener) {
super(context);
// TODO Auto-generated constructor stub
customDialogListener = customListener;
}
//定义dialog的回调事件
public interface OnCustomDialogListener{
void back(String str);
}
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.wifi_config_dialog);
setTitle("请输入密码");
pswEdit = (EditText)findViewById(R.id.wifiDialogPsw);
cancelButton = (Button)findViewById(R.id.wifiDialogCancel);
okButton = (Button)findViewById(R.id.wifiDialogCertain);
cancelButton.setOnClickListener(buttonDialogListener);
okButton.setOnClickListener(buttonDialogListener);
}
private View.OnClickListener buttonDialogListener = new View.OnClickListener() {
@Override
public void onClick(View view) {
// TODO Auto-generated method stub
if(view.getId() == R.id.wifiDialogCancel){
pswEdit = null;
customDialogListener.back(null);
cancel();//自动调用dismiss();
}
else{
customDialogListener.back(pswEdit.getText().toString());
dismiss();
}
}
};
}
 来自CODE的代码片
WifiPswDialog

首先说明下Dialog中两个Button的点击事件的处理

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public void onClick(View view) {
// TODO Auto-generated method stub
if(view.getId() == R.id.wifiDialogCancel){
pswEdit = null;
customDialogListener.back(null);
cancel();//自动调用dismiss();
}
else{
customDialogListener.back(pswEdit.getText().toString());
dismiss();
}
}
 来自CODE的代码片
click

参考：http://labs.chinamobile.com/groups/10670_27134
对话框关闭时，调用dismiss()方法。点击“取消”时调用cancel()方法，指不再需要执行对话框上的任何功能和动作，取消对话框会自动调用dismiss()方法。

实现从对话框中返回信息，如WIFI密码

Dialog并没有提供可以直接返回数据的方法，我们可以通过创建自己的监听类实现

<a target=_blank id="L1" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L1" rel="#L1" style="color: rgb(102, 102, 102); text-decoration: none;"> 1</a><a target=_blank id="L2" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L2" rel="#L2" style="color: rgb(102, 102, 102); text-decoration: none;"> 2</a><a target=_blank id="L3" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L3" rel="#L3" style="color: rgb(102, 102, 102); text-decoration: none;"> 3</a><a target=_blank id="L4" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L4" rel="#L4" style="color: rgb(102, 102, 102); text-decoration: none;"> 4</a>
//定义dialog的回调事件
public interface OnCustomDialogListener{
void back(String str);
}
 来自CODE的代码片
OnCustomDialogListener
同样Dialog的构造方法也需要改变

<a target=_blank id="L1" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L1" rel="#L1" style="color: rgb(102, 102, 102); text-decoration: none;"> 1</a><a target=_blank id="L2" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L2" rel="#L2" style="color: rgb(102, 102, 102); text-decoration: none;"> 2</a><a target=_blank id="L3" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L3" rel="#L3" style="color: rgb(102, 102, 102); text-decoration: none;"> 3</a><a target=_blank id="L4" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L4" rel="#L4" style="color: rgb(102, 102, 102); text-decoration: none;"> 4</a><a target=_blank id="L5" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L5" rel="#L5" style="color: rgb(102, 102, 102); text-decoration: none;"> 5</a><a target=_blank id="L6" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L6" rel="#L6" style="color: rgb(102, 102, 102); text-decoration: none;"> 6</a>
public WifiPswDialog(Context context,OnCustomDialogListener customListener) {
super(context);
// TODO Auto-generated constructor stub
customDialogListener = customListener;
}
 来自CODE的代码片
WifiPswDialog

然后我们需要在创建Dialog时候实现OnCustomDialogListener接口。
Dialog中如何传出数据呢，这是在OnClick方法中传出的。如代码中的语句：
customDialogListener.back(null);
customDialogListener.back(pswEdit.getText().toString());
3、在Acitivity中创建Dialog
<a target=_blank id="L1" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L1" rel="#L1" style="color: rgb(102, 102, 102); text-decoration: none;">  1</a><a target=_blank id="L2" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L2" rel="#L2" style="color: rgb(102, 102, 102); text-decoration: none;">  2</a><a target=_blank id="L3" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L3" rel="#L3" style="color: rgb(102, 102, 102); text-decoration: none;">  3</a><a target=_blank id="L4" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L4" rel="#L4" style="color: rgb(102, 102, 102); text-decoration: none;">  4</a><a target=_blank id="L5" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L5" rel="#L5" style="color: rgb(102, 102, 102); text-decoration: none;">  5</a><a target=_blank id="L6" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L6" rel="#L6" style="color: rgb(102, 102, 102); text-decoration: none;">  6</a><a target=_blank id="L7" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L7" rel="#L7" style="color: rgb(102, 102, 102); text-decoration: none;">  7</a><a target=_blank id="L8" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L8" rel="#L8" style="color: rgb(102, 102, 102); text-decoration: none;">  8</a><a target=_blank id="L9" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L9" rel="#L9" style="color: rgb(102, 102, 102); text-decoration: none;">  9</a><a target=_blank id="L10" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L10" rel="#L10" style="color: rgb(102, 102, 102); text-decoration: none;"> 10</a><a target=_blank id="L11" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L11" rel="#L11" style="color: rgb(102, 102, 102); text-decoration: none;"> 11</a><a target=_blank id="L12" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L12" rel="#L12" style="color: rgb(102, 102, 102); text-decoration: none;"> 12</a><a target=_blank id="L13" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L13" rel="#L13" style="color: rgb(102, 102, 102); text-decoration: none;"> 13</a><a target=_blank id="L14" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L14" rel="#L14" style="color: rgb(102, 102, 102); text-decoration: none;"> 14</a><a target=_blank id="L15" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L15" rel="#L15" style="color: rgb(102, 102, 102); text-decoration: none;"> 15</a><a target=_blank id="L16" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L16" rel="#L16" style="color: rgb(102, 102, 102); text-decoration: none;"> 16</a><a target=_blank id="L17" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L17" rel="#L17" style="color: rgb(102, 102, 102); text-decoration: none;"> 17</a><a target=_blank id="L18" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L18" rel="#L18" style="color: rgb(102, 102, 102); text-decoration: none;"> 18</a><a target=_blank id="L19" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L19" rel="#L19" style="color: rgb(102, 102, 102); text-decoration: none;"> 19</a><a target=_blank id="L20" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L20" rel="#L20" style="color: rgb(102, 102, 102); text-decoration: none;"> 20</a><a target=_blank id="L21" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L21" rel="#L21" style="color: rgb(102, 102, 102); text-decoration: none;"> 21</a><a target=_blank id="L22" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L22" rel="#L22" style="color: rgb(102, 102, 102); text-decoration: none;"> 22</a><a target=_blank id="L23" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L23" rel="#L23" style="color: rgb(102, 102, 102); text-decoration: none;"> 23</a><a target=_blank id="L24" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L24" rel="#L24" style="color: rgb(102, 102, 102); text-decoration: none;"> 24</a><a target=_blank id="L25" href="http://blog.csdn.net/liuhui_8989/article/details/22962649#L25" rel="#L25" style="color: rgb(102, 102, 102); text-decoration: none;"> 25</a>
WifiPswDialog pswDialog = new WifiPswDialog(ControlPCMainActivity.this,new OnCustomDialogListener() {
@Override
public void back(String str) {
// TODO Auto-generated method stub
wifiPassword = str;
if(wifiPassword != null){
int netId = localWifiUtils.AddWifiConfig(wifiResultList,wifiItemSSID, wifiPassword);
Log.i("WifiPswDialog",String.valueOf(netId));
    if(netId != -1){
localWifiUtils.getConfiguration();//添加了配置信息，要重新得到配置信息
if(localWifiUtils.ConnectWifi(netId)){
selectedItem.setBackgroundResource(R.color.green);
    }
}
else{
Toast.makeText(ControlPCMainActivity.this, "网络连接错误", Toast.LENGTH_SHORT).show();
selectedItem.setBackgroundResource(R.color.burlywood);
}
}
else{
selectedItem.setBackgroundResource(R.color.burlywood);
}
}
});
pswDialog.show();
 来自CODE的代码片
snippet_file_0.txt
创建Dialog时最主要的就是对OnCustomDialogListener接口的实现，对back()方法实现，back方法是对话框消失后执行的操作，返回的数据通过back()方法的参数str实现。
创建完成后Dialog的显示只需要通过Dialog.show（）方法实现就可以了


project源码：http://download.csdn.net/detail/liuhui_8989/7154671

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