android中的对话框形式大致分为四种，分别是一般对话框形式，列表对话框形式，单选对话框形式，多选对话框形式

另外一种是登录对话框形式

下面一一对这几种对话框进行详细的讲解

1.一般对话框

2. 列表对话框

buttontwo.setOnClickListener(new View.OnClickListener() {
   @Override
   public void onClick(View v) {
    // TODO Auto-generated method stub
    AlertDialog.Builder builder = new AlertDialog.Builder(main.this);
    CharSequence[] items = { "确定", "忽略", "取消" };
    builder.setItems(items, new OnClickListener() {
     @Override
     public void onClick(DialogInterface dialog, int which) {
      // TODO Auto-generated method stub
      switch (which) {
      case 0:
       Toast.makeText(main.this, "你选择的是确定按钮",2000).show();
       break;
       
      case 1:
       Toast.makeText(main.this, "你选择的是忽略按钮",2000).show();
       break;
      case 2:
       Toast.makeText(main.this, "你选择的是取消按钮",2000).show();
       break;
      }
     }
    });
    AlertDialog alertDialog = builder.create();
    alertDialog.setIcon(R.drawable.icon);
    alertDialog.setTitle("列表对话框");
    // alertDialog.setMessage("请选择");不能添加此方法
    alertDialog.show();
   }
  });

3.单选对话框

buttonthree.setOnClickListener(new View.OnClickListener() {
   @Override
   public void onClick(View v) {
    // TODO Auto-generated method stub
    AlertDialog.Builder builder = new AlertDialog.Builder(main.this);
    CharSequence[] items = { "aa", "bb", "cc" };
    builder.setSingleChoiceItems(items, -1, new OnClickListener() {
     @Override
     public void onClick(DialogInterface dialog, int which) {
      // TODO Auto-generated method stub
                          // dialog.dismiss();
      switch (which) {
      case 0:
       Toast.makeText(main.this, "你选择的是aa按钮",2000).show();
       dialog.dismiss();
       break;
       
      case 1:
       Toast.makeText(main.this, "你选择的是bb按钮",2000).show();
       dialog.dismiss();
       break;
      case 2:
       Toast.makeText(main.this, "你选择的是cc按钮",2000).show();
       dialog.dismiss();
       break;
      }
     }
    });
    AlertDialog alertDialog = builder.create();
    alertDialog.setIcon(R.drawable.icon);
    alertDialog.setTitle("列表对话框");
    // alertDialog.setMessage("请选择");不能添加此方法
    alertDialog.show();
    
   }
  });

buttonfive.setOnClickListener(new View.OnClickListener() {
  @Override
  public void onClick(View v) {
   // TODO Auto-generated method stub
   AlertDialog.Builder builder=new AlertDialog.Builder(main.this);
   builder.setSingleChoiceItems(R.array.city, -1, new DialogInterface.OnClickListener() { 
    @Override
    public void onClick(DialogInterface dialog, int which) {
     // TODO Auto-generated method stub
     switch (which) {
     case 0:
      Toast.makeText(main.this, "你选择的是北京",2000).show();
      dialog.dismiss();
      break;
     case 1:
      Toast.makeText(main.this, "你选择的是上海",2000).show();
      dialog.dismiss();
      break;
     case 2:
      Toast.makeText(main.this, "你选择的是广州",2000).show();
      dialog.dismiss();
      break;

default:
      break;
     }
    }
   });
   AlertDialog alertDialog=builder.create();
   alertDialog.setIcon(R.drawable.icon);
   alertDialog.setTitle("列表对话框");
   alertDialog.show();
  }
 });

4.多选对话框

buttonfour.setOnClickListener(new View.OnClickListener() { 
   @Override
   public void onClick(View v) {
    // TODO Auto-generated method stub
    AlertDialog.Builder builder=new AlertDialog.Builder(main.this);
    final CharSequence[] items={"跑步","上网","旅游","读书"};
    builder.setMultiChoiceItems(items, null, new DialogInterface.OnMultiChoiceClickListener() {
     
     @Override
     public void onClick(DialogInterface dialog, int which, boolean isChecked) {
      // TODO Auto-generated method stu
     
     }
    });
    
    
    builder.setPositiveButton("确定", new DialogInterface.OnClickListener() { 
     @Override
     public void onClick(DialogInterface dialog, int which) {
      // TODO Auto-generated method stub
      
      
     }
    });
    
    builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {
     @Override
     public void onClick(DialogInterface dialog, int which) {
      // TODO Auto-generated method stub
     }
    });
    
    AlertDialog alertDialog=builder.create();
    alertDialog.setIcon(R.drawable.icon);
    alertDialog.setTitle("列表 对话框");
    alertDialog.show();
   }
  });

5.登录对话框

public class Main extends Activity {
 private Button buttonone;
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
       
        buttonone=(Button)this.findViewById(R.id.buttononeid);
        buttonone.setOnClickListener(new View.OnClickListener() {
   @Override
   public void onClick(View v) {
    // TODO Auto-generated method stub
    final LinearLayout layout=(LinearLayout)LayoutInflater.from(Main.this).inflate(R.layout.login, null);
    AlertDialog.Builder builder=new AlertDialog.Builder(Main.this);
    builder.setView(layout);
    builder.setPositiveButton("登陆", new DialogInterface.OnClickListener() {
     @Override
     public void onClick(DialogInterface dialog, int which) {
      // TODO Auto-generated method stub
      EditText edtText=(EditText)layout.findViewById(R.id.username);
      Toast.makeText(Main.this, edtText.getText().toString(), 1).show();

main.this.showToast("正在登录，请稍后。。。");  
     }
    });
    
    builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {
     
     @Override
     public void onClick(DialogInterface dialog, int which) {
      // TODO Auto-generated method stub
      
     }
    });
    AlertDialog alertDialog=builder.create();
    alertDialog.setTitle("登录对话框");
    alertDialog.show();
   }
  });
    }
}

XML文件

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent">
-
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_marginLeft="20dp" android:layout_marginRight="20dp">
  <TextView
  android:layout_width="wrap_content"
  android:text="用户名："
  android:textSize="20sp"
  android:layout_height="wrap_content" />
 
  <EditText
  android:layout_width="fill_parent"
  android:id="@+id/username"
  android:layout_height="wrap_content" />
  </LinearLayout>
 
- <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_marginLeft="20dp" android:layout_marginRight="20dp">
  <TextView
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:text="密 码："
  android:textSize="20sp" />
  <EditText
  android:layout_width="fill_parent"
   android:layout_height="wrap_content"
   android:id="@+id/password"
    android:password="true" />
 
  </LinearLayout>
  </LinearLayout>

xml文件2

<?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"
    >
<Button
 android:id="@+id/buttononeid"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="请点击我登陆"
    />
</LinearLayout>