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Android中制作自定義dialog對話框的實例

本文轉載自   查看原文   2016-06-17 16:15   6573    android/ 工作
http://www.jb51.net/article/83319.htm
 
這篇文章主要介紹了Android中制作自定義dialog對話框的實例分享,安卓自帶的Dialog顯然不夠用,因而我們要繼承Dialog類來制作自己的對話框,需要的朋友可以參考下
 

自定義dialog基礎版
很多時候，我們在使用android sdk提供的alerdialog的時候，會因為你的系統的不同而產生不同的效果，就好比如你刷的是MIUI的系統，彈出框都會在頂部顯示！這里簡單的介紹自定義彈出框的應用。

首先創建布局文件dialog：

代碼:

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<? 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:orientation = "vertical" >
   < EditText
     android:id = "@+id/edit"
     android:layout_width = "250dip"
      android:layout_height = "wrap_content"
     />
   < Button
     android:id = "@+id/clickbtn"
      android:layout_width = "wrap_content"
      android:layout_height = "wrap_content"
      android:text = "click me" />
   
 
</ LinearLayout >

其次創建MyCustomDialog類繼承Dialog：

代碼:

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package com.xzw.custom.dialog;
 
import android.app.Dialog;
import android.content.Context;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
/**
* 自定義dialog
*/
public class MyCustomDialog extends Dialog {
     //定義回調事件，用於dialog的點擊事件
     public interface OnCustomDialogListener{
         public void back(String name);
     }
     
     private String name;
     private OnCustomDialogListener customDialogListener;
     EditText etName;
 
     public MyCustomDialog(Context context,String name,OnCustomDialogListener customDialogListener) {
         super (context);
         this .name = name;
         this .customDialogListener = customDialogListener;
     }
     
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super .onCreate(savedInstanceState);
         setContentView(R.layout.dialog);
         //設置標題
         setTitle(name);
         etName = (EditText)findViewById(R.id.edit);
         Button clickBtn = (Button) findViewById(R.id.clickbtn);
         clickBtn.setOnClickListener(clickListener);
     }
     
     private View.OnClickListener clickListener = new View.OnClickListener() {
         
         @Override
         public void onClick(View v) {
             customDialogListener.back(String.valueOf(etName.getText()));
           MyCustomDialog. this .dismiss();
         }
     };
 
}

最后再完成MainActivity：

代碼:

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package com.xzw.custom.dialog;
 
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
 
public class MainActivity extends Activity implements OnClickListener {
    private TextView resultText;
   @Override
   public void onCreate(Bundle savedInstanceState) {
     super .onCreate(savedInstanceState);
     setContentView(R.layout.main);
     resultText = (TextView) findViewById(R.id.result);
     Button showDialogBtn = (Button) findViewById(R.id.showdialog);
     showDialogBtn.setOnClickListener( this );
     
    
   }
 
     @Override
     public void onClick(View v) {
          MyCustomDialog dialog = new MyCustomDialog( this , "Enter your name" , new MyCustomDialog.OnCustomDialogListener() {
                 
                 @Override
                 public void back(String name) {
                     resultText.setText( "Enter name is " +name);
                     
                 }
             });
             dialog.show();
         
   }
          
   
}

效果如圖：

2016429151132630.jpg (322×489)

 

炫酷升級版
在日常開發過程中，Android自帶的對話框控件美觀程度遠遠滿足不了開發的要求，特別是相對於移植開發，下面描述的demo是基於1280X720分辨率實現的效果。

自定義對話框和上次記錄的自定義RatingBar非常類似，都是通過在styles.xml里面繼承父類(此處是Dialog)的樣式。
styles.xml

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< style name = "NoticeDialog" parent = "@android:style/Theme.Dialog" >
     < item name = "android:windowFrame" >@null</ item > <!--邊框-->
     < item name = "android:windowIsFloating" >true</ item > <!--是否浮現在activity之上-->
     < item name = "android:windowIsTranslucent" >false</ item > <!--半透明-->
     < item name = "android:windowNoTitle" >true</ item > <!--無標題-->
     < item name = "android:windowBackground" >@drawable/tck_bg</ item > <!--背景透明-->
     < item name = "android:backgroundDimEnabled" >false</ item > <!--模糊-->
   </ style >

我們下面將要做下面三個效果：
（1）帶選擇確認框的提示

2016429151333943.jpg (601×258)

（2）圖片+文字的提示

2016429151417413.jpg (599×274)

（3）圖片+圖片

2016429151439752.jpg (613×273)

實現上面三個效果我們只需要繼承一個Dialog類，然后根據不同的布局添加相對應的xml布局就可以簡單實現功能擴展的效果了。
1.繼承Dialog類，重寫父類的方法，並添加子類自己的方法。
NoticeDialog.java，繼承於Dialog父類，實現了點擊事件的接口，如果有確認選擇框，則把確認選擇框的控件添加click事件監聽，通過在回調方法在UI主線程里面實現界面更新和邏輯操作。

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package com.zlc.dialog;
  
import android.app.Dialog;
import android.content.Context;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.TextView;
  
  
public class NoticeDialog extends Dialog implements OnClickListener{
   Context context;
   private NoticeDialogListener listener;
   //對話框事件監聽接口，用於處理回調點擊事件
   public interface NoticeDialogListener {
     public void onClick(View view);
   } 
   public NoticeDialog(Context context) {
     super (context);
     // TODO Auto-generated constructor stub
     this .context = context;
   }
   public NoticeDialog(Context context, int theme){
     super (context, theme);
     this .context = context;
   }
   public NoticeDialog(Context context, int theme,NoticeDialogListener listener){
     super (context, theme);
     this .context = context;
     this .listener = listener;
   }
   @Override
   protected void onCreate(Bundle savedInstanceState) {
     super .onCreate(savedInstanceState);
     TextView enter = (TextView)findViewById(R.id.dialog_enter); //確定控件
     TextView cancel = (TextView)findViewById(R.id.dialog_cancle); //取消控件
     if (enter != null && cancel != null ){ //如果是不帶確認選擇框，不做事件監聽操作
       enter.setOnClickListener( this );
       cancel.setOnClickListener( this );
       enter.requestFocus();
     }
    
   }
   @Override
   public void onClick(View v) {
     // TODO Auto-generated method stub
     listener.onClick(v);
   }
}

2.對應上面三個效果，添加不同的xml布局。
（1）帶選擇確認框的提示dialog_notice_choise.xml

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<? xml version = "1.0" encoding = "utf-8" ?>
< LinearLayout xmlns:android = "http://schemas.android.com/apk/res/android"
   android:orientation = "vertical"
   android:layout_width = "652dp"
   android:layout_height = "352dp"
   >
   < LinearLayout
      android:layout_width = "500dp"
      android:layout_height = "200dp"
     android:layout_marginLeft = "76dp"
     android:layout_marginTop = "76dp"
     android:orientation = "vertical"
     android:background = "@drawable/tck01" >
     < LinearLayout
        android:layout_width = "fill_parent"
       android:layout_height = "wrap_content"
       android:layout_marginTop = "5dp"
       android:layout_marginLeft = "10dp"
        
       >
       < TextView
       android:textSize = "26sp"
        android:layout_width = "wrap_content"
       android:layout_height = "wrap_content"
       android:textColor = "@color/dialog_title"
       android:text = "@string/dialog_title"
          android:focusable = "false"
       />
     </ LinearLayout >
      
     < LinearLayout
       android:layout_width = "fill_parent"
       android:layout_height = "wrap_content"
       android:layout_marginTop = "40dp"
       android:gravity = "center"
       > 
       
        < TextView
       android:id = "@+id/notice_value"
       android:textSize = "32sp"
       android:layout_marginLeft = "10dp"
        android:layout_width = "wrap_content"
       android:layout_height = "wrap_content"
       android:textColor = "@color/dialog_content"
       android:text = "@string/dialog_uninstall"
         android:focusable = "false"
       />
       </ LinearLayout >
     < LinearLayout
       android:layout_width = "fill_parent"
       android:layout_height = "44dp"
       android:layout_marginTop = "35dp"
       android:layout_marginLeft = "4dp"
       > 
       < TextView
         android:id = "@+id/dialog_enter"
         android:textSize = "25sp"
          android:layout_width = "246dp"
       android:layout_height = "fill_parent"
       android:text = "@string/dialog_enter"
       android:gravity = "center"
       android:textColor = "@drawable/app_manager_dialog_textcolor"
       android:background = "@drawable/app_manager_dialog_btn_color"
       android:focusable = "true"
         />
       < TextView
         android:id = "@+id/dialog_cancle"
          android:textSize = "25sp"
          android:layout_width = "246dp"
       android:layout_height = "fill_parent"
        android:text = "@string/dialog_cancel"
        android:gravity = "center"
         android:textColor = "@drawable/app_manager_dialog_textcolor"
          android:background = "@drawable/app_manager_dialog_btn_color"
           android:focusable = "true"
         />
       </ LinearLayout >
        
     </ LinearLayout >
</ LinearLayout >  

 
（2）圖片+文字的提示dialog_notice_ing.xml

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<? xml version = "1.0" encoding = "utf-8" ?>
< LinearLayout xmlns:android = "http://schemas.android.com/apk/res/android"
   android:orientation = "vertical"
   android:layout_width = "652dp"
   android:layout_height = "352dp"
   >
   < LinearLayout
      android:layout_width = "500dp"
      android:layout_height = "200dp"
     android:layout_marginLeft = "76dp"
        android:layout_marginTop = "76dp"
     android:orientation = "vertical"
     android:background = "@drawable/tck01" >
     < LinearLayout
        android:layout_width = "fill_parent"
       android:layout_height = "wrap_content"
       android:layout_marginTop = "5dp"
       android:layout_marginLeft = "10dp"
        
       >
       < TextView
       android:textSize = "26sp"
        android:layout_width = "wrap_content"
       android:layout_height = "wrap_content"
       android:textColor = "@color/dialog_title"
       android:text = "@string/dialog_title"
       />
     </ LinearLayout >
      
     < LinearLayout
       android:layout_width = "fill_parent"
       android:layout_height = "wrap_content"
       android:layout_marginTop = "50dp"
        android:gravity = "center"
       > 
       < ImageView
          android:layout_width = "38dp"
          android:layout_height = "42dp"
         android:src = "@drawable/uninstall_icon" />
        < TextView
          android:id = "@+id/dialog_in_msg"
       android:textSize = "32sp"
       android:layout_marginLeft = "10dp"
        android:layout_width = "wrap_content"
       android:layout_height = "wrap_content"
       android:textColor = "@color/dialog_content"
       android:text = "@string/dialog_uninstall_in"
       />
       </ LinearLayout >
        
     </ LinearLayout >
</ LinearLayout >   

（3）圖片+圖片dialog_notice_finish.xml

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<? xml version = "1.0" encoding = "utf-8" ?>
< LinearLayout xmlns:android = "http://schemas.android.com/apk/res/android"
   android:orientation = "vertical"
   android:layout_width = "652dp"
   android:layout_height = "352dp"
   >
   < LinearLayout
      android:layout_width = "500dp"
      android:layout_height = "200dp"
     android:layout_marginLeft = "76dp"
        android:layout_marginTop = "76dp"
     android:orientation = "vertical"
     android:background = "@drawable/tck01" >
     < LinearLayout
        android:layout_width = "fill_parent"
       android:layout_height = "wrap_content"
       android:layout_marginTop = "5dp"
       android:layout_marginLeft = "10dp"
        
       >
       < TextView
       android:textSize = "26sp"
        android:layout_width = "wrap_content"
       android:layout_height = "wrap_content"
       android:textColor = "@color/dialog_title"
       android:text = "@string/dialog_title"
       />
     </ LinearLayout >
      
     < LinearLayout
       android:layout_width = "fill_parent"
       android:layout_height = "wrap_content"
       android:layout_marginTop = "40dp"
        android:gravity = "center"
       > 
       < ImageView
          android:layout_width = "66dp"
          android:layout_height = "67dp"
         android:src = "@drawable/cg" />
        < ImageView
       android:id = "@+id/dialog_finish_img"
       android:layout_marginLeft = "20dp"
        android:layout_width = "165dp"
          android:layout_height = "36dp"
         android:src = "@drawable/uninstall_ok"
       />
       </ LinearLayout >
        
     </ LinearLayout >
</ LinearLayout >

    
3.在MainActivity實現對自定義對話框的添加顯示。
MainActivity.java，在進行對話框切換顯示的時候，只需要設置不同的xml配置文件就行了。（注意：NoticeDialog里面的構造方法的context參數只能是XXXActivity.this，不能是通過getApplicationContext獲取的context對象）

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package com.zlc.dialog;
  
  
import java.util.Timer;
import java.util.TimerTask;
  
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.View;
  
import com.zlc.dialog.NoticeDialog.NoticeDialogListener;
  
public class MainActivity extends Activity {
   private Context context;
   private NoticeDialog notiDialog;
   int count = 0 ;
   Handler handler;
   @Override
   protected void onCreate(Bundle savedInstanceState) {
     super .onCreate(savedInstanceState);
     setContentView(R.layout.main);
     context = getApplicationContext();
     notiDialog = new NoticeDialog(MainActivity. this ,
         R.style.NoticeDialog, new NoticeDialogListener() {
       @Override
       public void onClick(View view) {
         try {
           if (view.getId() == R.id.dialog_enter){
             notiDialog.dismiss();
             //TODO 購買
           }
           notiDialog.dismiss();
         } catch (Exception e) {
           e.printStackTrace();
         }
       }
     });
     notiDialog.setContentView(R.layout.dialog_notice_choise);
     notiDialog.show();
     Timer timer = new Timer();
     handler = new Myhandler();
      
     timer.schedule( new TimerTask() {
       @Override
       public void run() {
         // TODO Auto-generated method stub
         count = count % 4 ;
         notiDialog.cancel();
         handler.sendEmptyMessage(count);
         count ++;
       }
     }, 3000 , 3000 );
   }
   private class Myhandler extends Handler{
     @Override
     public void handleMessage(Message msg) {
       // TODO Auto-generated method stub
       switch (msg.what) {
       case 0 :
         notiDialog.setContentView(R.layout.dialog_notice_ing);
         break ;
       case 1 :
         notiDialog.setContentView(R.layout.dialog_notice_finish);
         break ;
       case 2 :
         notiDialog.setContentView(R.layout.dialog_notice_choise);
         break ;
       default :
         break ;
       }
       notiDialog.show();
     }
   }
  
}


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