Android彈出對話方塊簡單代碼

 

 

package com.zxing.dialog;  

 

import android.app.Activity;  

import android.app.AlertDialog;  

import android.app.Dialog;  

import android.content.Context;  

import android.content.DialogInterface;  

import android.os.Bundle;  

import android.view.View;  

import android.view.View.OnClickListener;  

import android.widget.Button;  

 

public class DialogTest extends Activity {  

    private static final int DIALOG =   1;  

      

      

    /** Called when the activity is first created. */ 

    @Override 

    public void onCreate(Bundle savedInstanceState) {  

        super.onCreate(savedInstanceState);  

        setContentView(R.layout.main);  

        Button btn  =   (Button)findViewById(R.id.button1);  

        btn.setOnClickListener(new OnClickListener() {  

              

            @Override 

            public void onClick(View v) {  

                // TODO Auto-generated method stub  

                showDialog(DIALOG);//Activity裡面的函數,然後調用onCreateDialog這個方法,最後調用onPrepareDialog這個方法           }  

        });  

    }  

 

    @Override 

    protected Dialog onCreateDialog(int id) {  

        // TODO Auto-generated method stub  

        if(id==1){  

        return this.buildDialog(DialogTest.this);  

        }else{  

            return null;  

        }  

    }  

 

    @Override 

    protected void onPrepareDialog(int id, Dialog dialog) {  

        // TODO Auto-generated method stub  

        super.onPrepareDialog(DIALOG, dialog);  

    }  

      

    private Dialog buildDialog(Context context){  

        AlertDialog.Builder builder =   new AlertDialog.Builder(context);  

        builder.setIcon(R.drawable.alert_dialog_icon);  

        builder.setTitle(R.string.alertitle);  

        builder.setPositiveButton(R.string.right,new DialogInterface.OnClickListener() {  

              

            @Override 

            public void onClick(DialogInterface dialog, int which) {  

                // TODO Auto-generated method stub  

                setTitle("您單擊了對話方塊上面的正確按鈕");  

            }  

        });  

          

        return builder.create();  

    }  

      

}   

 

作者：MR.zxing