android 闹钟提醒并且在锁屏下弹出Dialog对话框并播放铃声和震动
1、先简单设置一个闹钟提醒事件：
//设置闹钟
mSetting.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
calendar.setTimeInMillis(System.currentTimeMillis());
int mHour=calendar.get(Calendar.HOUR_OF_DAY);
int mMinute=calendar.get(Calendar.MINUTE);
new TimePickerDialog(MainActivity.this,
new TimePickerDialog.OnTimeSetListener(){
public void onTimeSet(TimePicker view,int hourOfDay,
int minute){
// 设置时间
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.set(Calendar.HOUR_OF_DAY,hourOfDay);
calendar.set(Calendar.MINUTE,minute);
calendar.set(Calendar.SECOND,0);
calendar.set(Calendar.MILLISECOND,0);
//广播跳转
Intent intent = new Intent(MainActivity.this, CallAlarmReceiver.class);
//启动一个广播
PendingIntent sender=PendingIntent.getBroadcast(
MainActivity.this,0, intent, 0);
//创建闹钟
AlarmManager am;
am = (AlarmManager)getSystemService(ALARM_SERVICE);
am.set(AlarmManager.RTC_WAKEUP,calendar.getTimeInMillis(),sender);
String tmpS=format(hourOfDay)+"："+format(minute);
mDate.setText(tmpS);
//SharedPreferences保存数据，并提交
SharedPreferences time1Share = getPreferences(0);
SharedPreferences.Editor editor = time1Share.edit();
editor.putString("TIME1", tmpS);
editor.commit();
Toast.makeText(MainActivity.this,"设置闹钟时间为"+tmpS,Toast.LENGTH_SHORT).show();
}
},mHour,mMinute,true).show();
}
});
注意：CallAlarmReceiver 广播接收器，所以要在AndroidManifest.xml配置：如
<receiver android:name=".CallAlarmReceiver" android:process=":remote" />
2、广播接收器：
很简单一个继承BroadcastReceiver，然后跳转到弹框的Activity
public class CallAlarmReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
Intent alaramIntent = new Intent(context, AlarmSettingAgain.class);
alaramIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(alaramIntent);
}
}
3、接收后处理，包括弹出dialog，播放铃声，震动和锁屏状态下亮屏
(1)、首先要在onCreate()上加一句，确保在锁屏状态下弹出Dialog不会出错。
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE); // hide title
Window win = getWindow();
WindowManager.LayoutParams winParams = win.getAttributes();
winParams.flags |= (WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD
| WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED
| WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON);
startMedia();
startVibrator();
createDialog();
}
(2)、锁屏状态下唤醒屏幕，要在onResume() 方法中启动，并且要在onPause()中释放，否则会出错。
@Override
protected void onResume() {
super.onResume();
// 唤醒屏幕
acquireWakeLock();
}
@Override
protected void onPause() {
super.onPause();
releaseWakeLock();
}
/**
* 唤醒屏幕
*/
private void acquireWakeLock() {
if (mWakelock == null) {
PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
mWakelock = pm.newWakeLock(PowerManager.ACQUIRE_CAUSES_WAKEUP
| PowerManager.SCREEN_DIM_WAKE_LOCK, this.getClass()
.getCanonicalName());
mWakelock.acquire();
}
}
/**
* 释放锁屏
*/
private void releaseWakeLock() {
if (mWakelock != null && mWakelock.isHeld()) {
mWakelock.release();
mWakelock = null;
}
}
(3)、播放铃声:
/**
* 开始播放铃声
*/
private void startMedia() {
try {
mp.setDataSource(this,
RingtoneManager.getDefaultUri(RingtoneManager.TYPE_ALARM)); //铃声类型为默认闹钟铃声
mp.prepare();
mp.start();
} catch (Exception e) {
e.printStackTrace();
}
}
(4)、震动：
/**
* 震动
*/
private void startVibrator() {
/**
* 想设置震动大小可以通过改变pattern来设定，如果开启时间太短，震动效果可能感觉不到
*
*/
vibrator = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
long[] pattern = { 500, 1000, 500, 1000 }; // 停止 开启 停止 开启
vibrator.vibrate(pattern, 0);
}
(5)、弹出Dialog对话框
private void createDialog() {
new AlertDialog.Builder(this)
.setIcon(R.drawable.clock)
.setTitle("闹钟提醒时间到了!!")
.setMessage("你使用闹钟时间到了!!!")
.setPositiveButton("推迟10分钟", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
tenMRemind();
mp.stop();
vibrator.cancel();
finish();
}
})
.setNegativeButton("关闭", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
mp.stop();
vibrator.cancel();
finish();
}
}).show();
}
/**
* 推迟10分钟提醒
*/
private void tenMRemind(){
//设置时间
Calendar calendar_now =Calendar.getInstance();
calendar_now.setTimeInMillis(System.currentTimeMillis());
calendar_now.set(Calendar.HOUR_OF_DAY, calendar_now.get(Calendar.HOUR_OF_DAY));
calendar_now.set(Calendar.MINUTE, calendar_now.get(Calendar.MINUTE)+10);
calendar_now.set(Calendar.SECOND, 0);
calendar_now.set(Calendar.MILLISECOND, 0);
//时间选择好了
Intent intent = new Intent(this, CallAlarmReceiver.class);
//注册闹钟广播
PendingIntent sender = PendingIntent.getBroadcast(
this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
AlarmManager am;
am = (AlarmManager) this.getSystemService(this.ALARM_SERVICE);
am.set(AlarmManager.RTC_WAKEUP, calendar_now.getTimeInMillis(), sender);
}
(6)、因为震动和锁屏都是系统级的，所以要在AndroidManifest.xml加上权限
<uses-permission android:name="android.permission.VIBRATE" /> <uses-permission android:name="android.permission.WAKE_LOCK"/>