### 1、Dialog種類： （1）確認對話框； ? ?（2）單選按鈕對話框； ? （3）多選按鈕對話框； ? ? ?（4）列表對話框； ### 2、Dialog常用方法： （1）創建AlertDialog：AlertDialog.Builder中的create()方法； （2）setTitle：設置對話框標題； （3）setIcon：設置對話框圖標； （4）setMessage：設置對話框內容； （5）setView：給對話框設置自定義樣式； （6）setItems：設置對話框要顯示的一個list，一般用于顯示幾個命令時； （7）setMultiChoiceItems：用來設置對話框顯示一系列的復選框； （8）setSingleChoiceItems：設置單選按鈕； （9）setNeutralButton：設置普通按鈕； （10）setPositiveButton：給對話框添加“確認”按鈕 （11）setNegativeButton：給對話框添加“取消”按鈕 ### 3、確認對話框 ~~~ findViewById(R.id.btnOK).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub AlertDialog.Builder builder = new AlertDialog.Builder( MainActivity.this); builder.setTitle("確認對話框"); builder.setIcon(R.drawable.ic_launcher); builder.setMessage("這是“確認對話框”的提示內容部分！"); builder.setPositiveButton("確定", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub Toast.makeText(MainActivity.this, "點擊了確定按鈕", Toast.LENGTH_LONG).show(); } }); builder.setNegativeButton("取消", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub Toast.makeText(MainActivity.this, "點擊了取消按鈕", Toast.LENGTH_LONG).show(); } }); AlertDialog dialog = builder.create(); dialog.show(); } }); ~~~ 效果圖：  ### 4、單選對話框 ~~~ <span style="white-space:pre"> </span>private String[] single_list={"男","女","未知"}; //設置選項 findViewById(R.id.btnSingle).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub AlertDialog.Builder builder = new AlertDialog.Builder( MainActivity.this); builder.setTitle("單選對話框"); builder.setIcon(R.drawable.ic_launcher); builder.setSingleChoiceItems(single_list, 0, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub String str=single_list[which]; //which參數 Toast.makeText(MainActivity.this, "您選擇的性別是："+str , Toast.LENGTH_LONG).show(); } }); AlertDialog dialog = builder.create(); dialog.show(); } }); } ~~~ 效果圖：  ### 5、多選對話框 ~~~ <span style="white-space:pre"> </span>private String[] multi_list={"籃球","足球","排球","乒乓球","羽毛球"}; private String like=""; findViewById(R.id.btnMulti).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub AlertDialog.Builder builder = new AlertDialog.Builder( MainActivity.this); builder.setTitle("多選對話框——愛好"); builder.setIcon(R.drawable.ic_launcher); builder.setMultiChoiceItems(multi_list,null,new DialogInterface.OnMultiChoiceClickListener() { @Override public void onClick(DialogInterface dialog, int which, boolean isChecked) { // TODO Auto-generated method stub if(isChecked){ like+=multi_list[which]; like+=","; Toast.makeText(MainActivity.this, "您選擇了"+multi_list[which], Toast.LENGTH_SHORT).show(); } else{ Toast.makeText(MainActivity.this, "您取消了"+multi_list[which], Toast.LENGTH_SHORT).show(); } } }); builder.setPositiveButton("確定", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub Toast.makeText(MainActivity.this, "您的愛好有："+like, Toast.LENGTH_SHORT).show(); } }); builder.setNegativeButton("取消", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub dialog.dismiss(); } }); AlertDialog dialog = builder.create(); dialog.show(); } }); ~~~ 效果圖：  ### 6、列表對話框 ~~~ private String[] item_list={"項目經理","技術工程師","測試","美工"}; findViewById(R.id.btnList).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub AlertDialog.Builder builder = new AlertDialog.Builder( MainActivity.this); builder.setTitle("列表對話框——部門"); builder.setIcon(R.drawable.ic_launcher); builder.setItems(item_list, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub Toast.makeText(MainActivity.this, "您是："+item_list[which], Toast.LENGTH_SHORT).show(); } }); AlertDialog dialog = builder.create(); dialog.show(); } }); ~~~ 效果圖：  ### 7、自定義對話框： （1）先去自定義一個dialog布局——dialog_layout.xml ~~~ <?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" > <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal" > <EditText android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="1" android:hint="請輸入內容" /> <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="10dp" android:text="提交" /> </LinearLayout> <ImageView android:layout_width="match_parent" android:layout_height="wrap_content" android:src="@drawable/item11" android:layout_marginTop="5dp" android:layout_gravity="center" /> </LinearLayout> ~~~ （2）主代碼： ~~~ findViewById(R.id.btnSelf).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { //獲取自定義的對話框布局，并轉換成View對象 LayoutInflater inflater=LayoutInflater.from(MainActivity.this); View view_dialog=inflater.inflate(R.layout.dialog_layout, null); AlertDialog.Builder builder = new AlertDialog.Builder( MainActivity.this); builder.setTitle("自定義對話框"); builder.setIcon(R.drawable.ic_launcher); builder.setView(view_dialog); //設置布局，把獲取的自定義布局傳進去 AlertDialog dialog = builder.create(); dialog.show(); } }); ~~~ 效果圖：  全部代碼見：主頁——我的GitHub——AndroidStudy。