Android之復選框對話框用法實例分析

2020-04-11 11:26:16

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本文實例講述了Android之復選框對話框用法。分享給大家供大家參考。具體如下：
main.xml布局文件

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent"> <EditText android:text=""   android:id="@+id/editText"  android:layout_width="fill_parent"  android:layout_height="wrap_content"   android:editable="false"  android:cursorVisible="false" /> <Button android:text="顯示復選框對話框"   android:id="@+id/button"  android:layout_width="fill_parent"  android:layout_height="wrap_content" /></LinearLayout>

array.xml數組

<?xml version="1.0" encoding="utf-8"?><resources> <string-array name="hobby">  <item>游泳</item>  <item>打籃球</item>  <item>登山</item> </string-array></resources>

AlertActivity類

package com.ljq.dialog;import android.app.Activity;import android.app.Dialog;import android.app.AlertDialog.Builder;import android.content.DialogInterface;import android.os.Bundle;import android.view.View;import android.widget.Button;import android.widget.EditText;public class AlertDialog extends Activity { private EditText editText; private final static int DIALOG=1; boolean[] flags=new boolean[]{false,false,false};//初始復選情況 String[] items=null; @Override public void onCreate(Bundle savedInstanceState) {  super.onCreate(savedInstanceState);  setContentView(R.layout.main);  items=getResources().getStringArray(R.array.hobby);  editText=(EditText)findViewById(R.id.editText);  Button button = (Button) findViewById(R.id.button);  button.setOnClickListener(new View.OnClickListener() {   public void onClick(View v) {    // 顯示對話框    showDialog(DIALOG);   }  }); } /**  * 創建復選框對話框  */ @Override protected Dialog onCreateDialog(int id) {  Dialog dialog=null;  switch (id) {  case DIALOG:   Builder builder=new android.app.AlertDialog.Builder(this);   //設置對話框的圖標   builder.setIcon(R.drawable.header);   //設置對話框的標題   builder.setTitle("復選框對話框");   builder.setMultiChoiceItems(R.array.hobby, flags, new DialogInterface.OnMultiChoiceClickListener(){    public void onClick(DialogInterface dialog, int which, boolean isChecked) {     flags[which]=isChecked;     String result = "您選擇了：";     for (int i = 0; i < flags.length; i++) {      if(flags[i]){       result=result+items[i]+"、";      }     }     editText.setText(result.substring(0, result.length()-1));    }   });   //添加一個確定按鈕   builder.setPositiveButton(" 確 定 ", new DialogInterface.OnClickListener(){    public void onClick(DialogInterface dialog, int which) {    }   });   //創建一個復選框對話框   dialog=builder.create();   break;  }  return dialog; }}

運行結果：