AlertDialog建立6種對話方塊的用法

AlertDialog建立6種對話方塊的用法

AlertDialog產生的對話方塊可分為4個地區：表徵圖區，標題區，內容區，按鈕區

結構

AlertDialog對話方塊的使用：

1，建立AlertDialog.Builder對象
2，調用Builder對象的setTitle()設定標題，setIcon設定表徵圖
3，調用Builder對象的相關方法設定內容，AlertDialog提供如下六中設定指定對話方塊的內容：

setMessage()；設定簡單文字框的內容
setItems()；設定簡單列表的內容，數組
setSingleChoiceItems()；；設定單選列表的內容，內容參數可以是數組Cursor，ListAdapter
setMultiChoiceItems()；設定多選清單項目的內容，內容參數可以是數組，Cursor
setAdapter();設定內容，內容是ListAdapter，常用的BaseAdapter，SimpleAdapter，ArrayAdapter
setView();設定內容，參數是自訂的View
4，調用Builder對象的setPositiveButton()和 setNegativeButton()設定按鈕和監聽器
5，調用Builder對象的create()方法建立AlertDialog對象，再調用AlertDialog對象的show()方法顯示對話方塊

 

總之：調用Builder對象設定表徵圖，標題，內容，按鈕，在create()，show()

代碼模板：

 

new AlertDialog.Builder(this)// 設定對話方塊標題.setTitle("簡單對話方塊")// 設定表徵圖.setIcon(R.drawable.tools)                       //設定內容，可代替.setMessage("對話方塊的測試內容\n第二行內容").setPositiveButton("確定"，listener).setNegativeButton("取消",listener).create().show();

acitivity_main.xml

 

 

MainActivity.java

 

 

 

package com.hust.alertdialogtest;import android.app.Activity;import android.app.AlertDialog;import android.content.DialogInterface;import android.content.DialogInterface.OnClickListener;import android.content.DialogInterface.OnMultiChoiceClickListener;import android.os.Bundle;import android.view.Menu;import android.view.MenuItem;import android.view.View;import android.widget.ArrayAdapter;import android.widget.TableLayout;import android.widget.TextView;/*AlertDialog對話方塊的使用： * AlertDialog對話方塊有四個地區：表徵圖區，標題區，內容區，按鈕區 * 1，建立AlertDialog.Builder對象 * 2，調用Builder對象的setTitle()設定標題，setIcon設定表徵圖 * 3，調用Builder對象的相關方法設定內容 *        setMessage()；設定簡單文字框的內容 *        setItems()；設定簡單列表的內容，數組 *        setSingleChoiceItems()；；設定單選列表的內容，內容參數可以是數組，Cursor，ListAdapter *        setMultiChoiceItems()；設定多選清單項目的內容，內容參數可以是數組，Cursor *        setAdapter();設定內容，內容是ListAdapter，常用的BaseAdapter，SimpleAdapter，ArrayAdapter *        setView();設定內容，參數是自訂的View * 4，調用Builder對象的setPositiveButton()和    setNegativeButton()設定按鈕和監聽器 * 5，調用Builder對象的create()方法建立AlertDialog對象，再調用AlertDialog對象的show()方法顯示對話方塊 *     *         *  總之：調用Builder對象設定表徵圖，標題，內容，按鈕，在create()，show()       * */public class MainActivity extends Activity {   TextView show;   String[] items=new String[]{   "湖北省","福建省","貴州省","四川省"   };    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        show=(TextView) findViewById(R.id.textView1);    }      /*簡單文本對話方塊：builder.setMessage()設定內容*/      public void simple(View v){    AlertDialog.Builder  builder=new AlertDialog.Builder(this);    builder.setTitle("簡單對話方塊");    builder.setIcon(R.drawable.tools);    builder.setMessage("這是簡單文本對話方塊\n第二行內容");        //為builder對象添加確定按鈕，不過這裡嵌套了一個函數    setPositiveButton(builder);    //為builder對象添加取消按鈕    builder=setNegativeButton(builder);        //builder建立對話方塊對象AlertDialog    AlertDialog simpledialog=builder.create();    simpledialog.show();    }    /*簡單列表對話方塊（數組對話方塊）:builder.setItems()設定內容*/    public void simpleList(View v){    AlertDialog.Builder builder=new AlertDialog.Builder(this);    builder.setTitle("數組列表對話方塊");    builder.setIcon(R.drawable.tools);    builder.setItems(items, new OnClickListener(){@Overridepublic void onClick(DialogInterface dialog, int which) {// TODO Auto-generated method stubshow.setText("你單擊了 "+items[which]);}        });       setPositiveButton(builder);    builder=setNegativeButton(builder);        AlertDialog simplelistdialog=builder.create();    simplelistdialog.show();    }    /*單選清單項目對話方塊：builder.setSingleChoiceItems()設定內容，內容參數可以是數組，Cursor，ListAdapter*/    public void singleChoice(View v){    AlertDialog.Builder builder=new AlertDialog.Builder(this);    builder.setTitle("單選清單項目對話方塊");    builder.setIcon(R.drawable.tools);    //設定單選清單項目，預設選中第二項    builder.setSingleChoiceItems(items,1, new OnClickListener(){@Overridepublic void onClick(DialogInterface dialog, int which) {// TODO Auto-generated method stubshow.setText("你單擊了 "+items[which]);}        });       setPositiveButton(builder);    builder=setNegativeButton(builder);        AlertDialog simplechoicedialog=builder.create();    simplechoicedialog.show();    }    /*     *      *多選清單項目對話方塊： builder.setMultiChoiceItems()設定內容，參數可以是數組，Cursor資料庫返回結果集     *      * AlertDialog.Builder.setMultiChoiceItems(CharSequence[] items, boolean[] checkedItems, OnMultiChoiceClickListener listener)*/    public void multiChoice(View v){     AlertDialog.Builder builder=new AlertDialog.Builder(this);    builder.setTitle("多選清單項目對話方塊");    builder.setIcon(R.drawable.tools);    //設定單多選清單項目，預設選中第二項，第四項    builder.setMultiChoiceItems(items,new boolean[]{false,true,false,true},new OnMultiChoiceClickListener(){@Overridepublic void onClick(DialogInterface dialog, int which,boolean isChecked) {// TODO Auto-generated method stub//添加處理方法}        });           setPositiveButton(builder);    builder=setNegativeButton(builder);        AlertDialog simplechoicedialog=builder.create();    simplechoicedialog.show();    }    /*自訂Adapter對話方塊:builder.setAdapter設定內容，內容是ListAdapter，常用的BaseAdapter，SimpleAdapter，ArrayAdapter*/        public void customList(View v){    AlertDialog.Builder  builder=new AlertDialog.Builder(this);    builder.setTitle("自訂Adapter對話方塊");    builder.setIcon(R.drawable.tools);    builder.setAdapter(new ArrayAdapter(this,R.layout.array_item,items), new OnClickListener(){@Overridepublic void onClick(DialogInterface dialog, int which) {// TODO Auto-generated method stubshow.setText("你單擊了 "+items[which]);}        });        //為builder對象添加確定按鈕，不過這裡嵌套了一個函數    setPositiveButton(builder);    //為builder對象添加取消按鈕    builder=setNegativeButton(builder);        //builder建立對話方塊對象AlertDialog    AlertDialog adapterdialog=builder.create();    adapterdialog.show();        }    /*自訂View對話方塊：builder.setView()設定View*/    public void customView(View v){    //擷取xml布局檔案對象    TableLayout loginform=(TableLayout) getLayoutInflater().inflate(R.layout.login, null);        AlertDialog.Builder  builder=new AlertDialog.Builder(this);    builder.setTitle("自訂View對話方塊");    builder.setIcon(R.drawable.tools);    //設定對話方塊顯示的View組件    builder.setView(loginform);        //為builder對象添加確定按鈕，不過這裡嵌套了一個函數    setPositiveButton(builder);    //為builder對象添加取消按鈕    builder=setNegativeButton(builder);        //builder建立對話方塊對象AlertDialog    AlertDialog viewdialog=builder.create();    viewdialog.show();            }    //返回對象是原來的Builder對象    private  AlertDialog.Builder  setPositiveButton(AlertDialog.Builder builder) {// TODO Auto-generated method stub return builder.setPositiveButton("確定", new OnClickListener(){@Overridepublic void onClick(DialogInterface dialog, int which) {// TODO Auto-generated method stubshow.setText("單擊了【確定】按鈕！");}  });}         //返回對象是Builder對象    private  AlertDialog.Builder  setNegativeButton(AlertDialog.Builder builder) {// TODO Auto-generated method stub return builder.setNegativeButton("取消", new OnClickListener(){@Overridepublic void onClick(DialogInterface dialog, int which) {// TODO Auto-generated method stubshow.setText("單擊了【取消】按鈕！");}  });}@Override    public boolean onCreateOptionsMenu(Menu menu) {        // Inflate the menu; this adds items to the action bar if it is present.        getMenuInflater().inflate(R.menu.main, menu);        return true;    }    @Override    public boolean onOptionsItemSelected(MenuItem item) {        // Handle action bar item clicks here. The action bar will        // automatically handle clicks on the Home/Up button, so long        // as you specify a parent activity in AndroidManifest.xml.        int id = item.getItemId();        if (id == R.id.action_settings) {            return true;        }        return super.onOptionsItemSelected(item);    }}