设置和取消闹钟

<?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">
    <TextView android:layout_width="fill_parent"
        android:id="@+id/TextView"
        android:layout_height="wrap_content" />
    <Button android:text="设置闹钟" android:id="@+id/Button01"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content">
    </Button>
    <Button android:text="取消闹钟" android:id="@+id/Button02"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content">
    </Button>
</LinearLayout>

MainActivity2.java   设置闹钟和取消闹钟

package com.example.textdemo5;

import java.util.Calendar;

import android.app.Activity;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class MainActivity2 extends Activity {
    private TextView tv = null;
    private Button btn_set = null;
    private Button btn_cel = null;
    private Calendar c = null;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        tv = (TextView) this.findViewById(R.id.TextView);
        btn_set = (Button) this.findViewById(R.id.Button01);
        btn_cel = (Button) this.findViewById(R.id.Button02);
        c = Calendar.getInstance();
        
        c.setTimeInMillis(System.currentTimeMillis());
        int hour = 18;    // 设置的小时
        int minute = 24;  // 设置的分钟
        c.setTimeInMillis(System.currentTimeMillis());
        c.set(Calendar.HOUR_OF_DAY, hour);
        c.set(Calendar.MINUTE, minute);
        c.set(Calendar.SECOND, 0);
        c.set(Calendar.MILLISECOND, 0);
        Intent intent = new Intent(MainActivity2.this,
                AlamrReceiver.class);
        PendingIntent pi = PendingIntent.getBroadcast(
                MainActivity2.this, 0, intent, 0);
        AlarmManager am = (AlarmManager) getSystemService(
                Activity.ALARM_SERVICE);
        am.set(AlarmManager.RTC_WAKEUP,
                c.getTimeInMillis(), pi);// 设置闹钟
        am.setRepeating(AlarmManager.RTC_WAKEUP,
                c.getTimeInMillis(), (10 * 1000), pi);// 重复设置
        tv.setText("设置的闹钟时间为：" + hour + ":"
                + minute);
        //---------------------------------
        /*btn_set.setOnClickListener(new Button.OnClickListener() {

            public void onClick(View v) {
                // TODO Auto-generated method stub
                c.setTimeInMillis(System.currentTimeMillis());
                
                new TimePickerDialog(MainActivity2.this,
                        new TimePickerDialog.OnTimeSetListener() {

                            public void onTimeSet(TimePicker view,
                                    int hourOfDay, int minute) {
                                // TODO Auto-generated method stub
                                c.setTimeInMillis(System.currentTimeMillis());
                                c.set(Calendar.HOUR_OF_DAY, hourOfDay);
                                c.set(Calendar.MINUTE, minute);
                                c.set(Calendar.SECOND, 0);
                                c.set(Calendar.MILLISECOND, 0);
                                Intent intent = new Intent(MainActivity2.this,
                                        AlamrReceiver.class);
                                PendingIntent pi = PendingIntent.getBroadcast(
                                        MainActivity2.this, 0, intent, 0);
                                AlarmManager am = (AlarmManager) getSystemService(
                                        Activity.ALARM_SERVICE);
                                am.set(AlarmManager.RTC_WAKEUP,
                                        c.getTimeInMillis(), pi);// 设置闹钟
                                am.setRepeating(AlarmManager.RTC_WAKEUP,
                                        c.getTimeInMillis(), (10 * 1000), pi);// 重复设置
                                tv.setText("设置的闹钟时间为：" + hourOfDay + ":"
                                        + minute);
                            }
                        }, hour, minute, true).show();
            }
        });*/
        
        btn_cel.setOnClickListener(new Button.OnClickListener() {
            public void onClick(View v) {
                // TODO Auto-generated method stub
                Intent intent = new Intent(MainActivity2.this,
                        AlamrReceiver.class);
                PendingIntent pi = PendingIntent.getBroadcast(
                        MainActivity2.this, 0, intent, 0);
                AlarmManager am = (AlarmManager) getSystemService(Activity.ALARM_SERVICE);
                am.cancel(pi);
                tv.setText("闹钟取消");
            }
        });
    }
}

AlamrReceiver.java  广播及时弹出闹钟提示框

package com.example.textdemo5;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.widget.Toast;

public class AlamrReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent arg1) {
        // TODO Auto-generated method stub
        Toast.makeText(context, "闹钟时间到", Toast.LENGTH_LONG).show();
    }

}

 

AndroidManifest.xml

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.textdemo5"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="15" />

    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name=".MainActivity2"
            android:label="@string/title_activity_main" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        
        <receiver android:name=".AlamrReceiver" android:process=":remote" />
        
    </application>

</manifest>

DEMO完整下载路径：http://download.csdn.net/detail/androidsj/5868481