系出名门Android(3) - 对话框(Dialog)和通知(Notification)

package com.webabcd.dialog; 

import java.util.Calendar; 

import android.app.Activity; 
import android.app.AlertDialog; 
import android.app.DatePickerDialog; 
import android.app.Dialog; 
import android.app.ProgressDialog; 
import android.app.TimePickerDialog; 
import android.app.DatePickerDialog.OnDateSetListener; 
import android.app.TimePickerDialog.OnTimeSetListener; 
import android.content.DialogInterface; 
import android.content.DialogInterface.OnClickListener; 
import android.os.Bundle; 
import android.view.View; 
import android.widget.DatePicker; 
import android.widget.TextView; 
import android.widget.TimePicker; 
import android.widget.Button; 

public  class Main  extends Activity { 
         /** Called when the activity is first created. */ 
        @Override 
         public  void onCreate(Bundle savedInstanceState) { 
                 super.onCreate(savedInstanceState); 
                setContentView(R.layout.main); 

                 // 弹出式对话框的 Demo。先调用 Builder()，在 Create()， 需要显示对话框的是后再调用 show() 
                AlertDialog dialog =  new AlertDialog.Builder( this).setTitle( "弹出对话框").create(); 
                dialog.show(); 
                 
                 // 以下是各种对话框的 Demo 
                MyButtonClickListener listener =  new MyButtonClickListener(); 
                Button btn1 = (Button)  this.findViewById(R.id.btn1); 
                btn1.setText( "简单的对话框的 Demo"); 
                btn1.setOnClickListener(listener); 

                Button btn2 = (Button)  this.findViewById(R.id.btn2); 
                btn2.setText( "包括常用设置的对话框(数据来自 xml)"); 
                btn2.setOnClickListener(listener); 

                Button btn3 = (Button)  this.findViewById(R.id.btn3); 
                btn3.setText( "弹出的对话框的内容是一个 View"); 
                btn3.setOnClickListener(listener); 

                Button btn4 = (Button)  this.findViewById(R.id.btn4); 
                btn4.setText( "日期选择对话框"); 
                btn4.setOnClickListener(listener); 

                Button btn5 = (Button)  this.findViewById(R.id.btn5); 
                btn5.setText( "时间选择对话框"); 
                btn5.setOnClickListener(listener); 

                Button btn6 = (Button)  this.findViewById(R.id.btn6); 
                btn6.setText( "进度条对话框"); 
                btn6.setOnClickListener(listener); 
        } 

         class MyButtonClickListener  implements View.OnClickListener { 
                @Override 
                 public  void onClick(View v) { 
                         
                         // 具体的对话框的实现可以通过重写 onCreateDialog 完成 
                         
                         switch (v.getId()) { 
                         case R.id.btn1: 
                                Main. this.showDialog(0); 
                                 break; 
                         case R.id.btn2: 
                                Main. this.showDialog(1); 
                                 break; 
                         case R.id.btn3: 
                                Main. this.showDialog(2); 
                                 break; 
                         case R.id.btn4: 
                                Main. this.showDialog(3); 
                                 break; 
                         case R.id.btn5: 
                                Main. this.showDialog(4); 
                                 break; 
                         case R.id.btn6: 
                                Main. this.showDialog(5); 
                                 break; 
                        } 
                } 
        } 

        @Override 
         public Dialog onCreateDialog( int id) { 
                 switch (id) { 

                 case 0: 
                         // 一个简单的弹出对话框 
                         return  new AlertDialog.Builder( this).setTitle( "这是一个简单的弹出对话框的 Demo") 
                                        .create(); 

                 case 1: 
                         // 一个相对复杂的弹出对话框 
                         return  new AlertDialog.Builder( this) 
                                        .setTitle( "标题")  // 设置标题 
                                         // .setCustomTitle(View) // 以一个 View 作为标题    
                                        .setIcon(R.drawable.icon01)  // 设置标题图片 
                                         // .setMessage("信息") // 需要显示的弹出内容 
                                        .setPositiveButton( "确定",  new OnClickListener() {  // 设置弹框的确认按钮所显示的文本，以及单击按钮后的响应行为 
                                                @Override 
                                                 public  void onClick(DialogInterface a0,  int a1) { 
                                                        TextView txtMsg = (TextView) Main. this.findViewById(R.id.txtMsg); 
                                                        txtMsg.append( "单击了对话框上的“确认”按钮\n"); 
                                                } 
                                        }) 
                                        .setItems(R.array.ary,  new DialogInterface.OnClickListener() {  // 弹框所显示的内容来自一个数组。数组中的数据会一行一行地依次排列 
                                                 public  void onClick(DialogInterface dialog,         int which) { 
                                                } 
                                        }) 
                                         // 其他常用方法如下 
                                         // .setMultiChoiceItems(arg0, arg1, arg2) 
                                         // .setSingleChoiceItems(arg0, arg1, arg2) 
                                         // .setNeutralButton(arg0, arg1) 
                                         // .setNegativeButton(arg0, arg1) 
                                        .create(); 

                 case 2: 
                         // 弹出对话框为指定的 View 的 Demo 
                         return  new AlertDialog.Builder( this).setTitle( "此对话框的内容是一个 View") 
                                        .setView( this.findViewById(R.layout.view)).create(); 

                 case 3: 
                         // 弹出日期选择对话框 
                        Calendar c = Calendar.getInstance(); 
                         return  new DatePickerDialog( this,  new OnDateSetListener() { 
                                @Override 
                                 public  void onDateSet(DatePicker view,  int year,  int monthOfYear,  int dayOfMonth) { 
                                        TextView txtMsg = (TextView) Main. this.findViewById(R.id.txtMsg); 
                                        txtMsg.append( "新设置的日期为：" + String.valueOf(year) +  "-" 
                                                        + String.valueOf(monthOfYear) +  "-" 
                                                        + String.valueOf(dayOfMonth) +  "\n"); 
                                } 
                        }, c.get(Calendar.YEAR), c.get(Calendar.MONTH), c.get(Calendar.DATE)); 

                 case 4: 
                         // 弹出时间选择对话框 
                        Calendar c2 = Calendar.getInstance(); 
                         return  new TimePickerDialog( this,  new OnTimeSetListener() { 
                                @Override 
                                 public  void onTimeSet(TimePicker view,  int hourOfDay,  int minute) { 
                                        TextView txtMsg = (TextView) Main. this.findViewById(R.id.txtMsg); 
                                        txtMsg.append( "新设置的时间为："    
                                                        + String.valueOf(hourOfDay) +  ":" 
                                                        + String.valueOf(minute) +  "\n"); 
                                } 

                        }, c2.get(Calendar.HOUR), c2.get(Calendar.MINUTE),  true); 

                 case 5: 
                         // 弹出进度条对话框 
                        ProgressDialog progress =  new ProgressDialog( this); 
                        progress.setMessage( "loading..."); 
                         return progress; 

                 default: 
                         return  null; 
                } 
        } 
}

package com.webabcd.notification; 

import android.app.Activity; 
import android.app.Notification; 
import android.app.NotificationManager; 
import android.app.PendingIntent; 
import android.content.Context; 
import android.content.Intent; 
import android.os.Bundle; 
import android.util.Log; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.widget.Button; 
import android.widget.TextView; 
import android.widget.Toast; 

public  class Main  extends Activity { 

         /** Called when the activity is first created. */ 
        @Override 
         public  void onCreate(Bundle savedInstanceState) { 
                 super.onCreate(savedInstanceState); 
                setContentView(R.layout.main); 

                 // 通过 Tost.makeText().show() 来实现提示性的通知效果 
                 // 短时间的提示性通知的 Demo 
                Button btn1 = (Button)  this.findViewById(R.id.btn1); 
                btn1.setText( "短时间提示"); 
                btn1.setOnClickListener( new Button.OnClickListener() { 
                         public  void onClick(View v) { 
                                Toast.makeText(Main. this,  "我是短时间提示", Toast.LENGTH_SHORT).show(); 
                        } 
                }); 

                 // 长时间的提示性通知的 Demo 
                Button btn2 = (Button)  this.findViewById(R.id.btn2); 
                btn2.setText( "长时间提示"); 
                btn2.setOnClickListener( new Button.OnClickListener() { 
                         public  void onClick(View v) { 
                                Toast.makeText(Main. this,  "我是长时间提示", Toast.LENGTH_LONG).show(); 
                        } 
                }); 

                 // 以一个 View 作为提示性通知的 Demo 
                Button btn3 = (Button)  this.findViewById(R.id.btn3); 
                btn3.setText( "以一个 View 做提示"); 
                btn3.setOnClickListener( new Button.OnClickListener() { 
                         public  void onClick(View v) { 
                                View view = inflateView(R.layout.view); 
                                TextView txtMsg = (TextView) view.findViewById(R.id.txtMsg); 
                                txtMsg.setText( "提示内容"); 

                                Toast toast =  new Toast(Main. this); 
                                toast.setView(view); 
                                toast.setDuration(Toast.LENGTH_LONG); 
                                toast.show(); 
                        } 
                }); 

                 
                Button btn4 = (Button)  this.findViewById(R.id.btn4); 
                btn4.setText( "发出一个通知（Notification）"); 
                btn4.setOnClickListener( new Button.OnClickListener() { 
                         public  void onClick(View v) { 
                                 // 实例化通知管理器 
                                NotificationManager nm = (NotificationManager) getSystemService(NOTIFICATION_SERVICE); 

                                 // 指定单击通知后所打开的详细的通知页面（单击通知后打开 NotificationView） 
                                PendingIntent contentIntent = PendingIntent.getActivity( 
                                                Main. this, 0,  new Intent(Main. this,        NotificationView. class), 0); 

                                 // 实例化一个通知，并指定其图标和标题（在提示栏上显示） 
                                Notification n =  new Notification(R.drawable.icon01,  "我是滚动的通知信息我是滚动的通知信息我是滚动的通知信息", System.currentTimeMillis()); 
                                 
                                 // 设置通知的发送人和通知的详细内容（打开提示栏后在通知列表中显示） 
                                n.setLatestEventInfo(Main. this,  "通知发送人",  "我是详细的通知信息我是详细的通知信息我是详细的通知信息", contentIntent); 

                                 // 100 毫秒延迟后，震动 250 毫秒，暂停 100 毫秒后，再震动 500 毫秒 
                                n.vibrate =  new  long[] { 100, 250, 100, 500 }; 
                                 
                                 // 发出通知（其中第一个参数为通知标识符） 
                                nm.notify(0, n); 
                        } 
                }); 
        } 

         // 将指定的 xml 资源转换为一个 View 
         private View inflateView( int resource) { 
                LayoutInflater vi = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
                 return vi.inflate(resource,  null); 
        } 

         // 打开详细通知页后此 Activity 会被 Pause，从详细通知页返回后此 Activity 会被 Resume 
        @Override 
         protected  void onPause() { 
                 // TODO Auto-generated method stub 
                 super.onPause(); 
                 
                Log.d( "MyDebug",  "onPause"); 
        } 
         
        @Override 
         protected  void onResume() { 
                 // TODO Auto-generated method stub 
                 super.onResume(); 
                 
                Log.d( "MyDebug",  "onResume"); 
        } 
}

package com.webabcd.notification; 

import android.app.Activity; 
import android.app.NotificationManager; 
import android.os.Bundle; 
import android.widget.TextView; 

// 单击通知列表的某个通知后，所打开的详细的通知页 
public  class NotificationView  extends Activity { 
         protected  void onCreate(Bundle savedInstanceState) { 
                 super.onCreate(savedInstanceState); 
                setContentView(R.layout.view); 

                TextView txtMsg = (TextView) this.findViewById(R.id.txtMsg); 
                txtMsg.setText( "点通知之后所链接到的 Activity"); 
                 
                NotificationManager nm = (NotificationManager) getSystemService(NOTIFICATION_SERVICE); 
                 // 取消显示在通知列表中的指定通知（参数为通知标识符） 
                nm.cancel(0); 
                 
                 // 需要关闭此 Activity 的话就 finish 它既可 
                 // this.finish(); 
        } 
}