Android中怎么實(shí)現(xiàn)簡(jiǎn)易鬧鐘功能,相信很多沒(méi)有經(jīng)驗(yàn)的人對(duì)此束手無(wú)策,為此本文總結(jié)了問(wèn)題出現(xiàn)的原因和解決方法,通過(guò)這篇文章希望你能解決這個(gè)問(wèn)題。
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1.創(chuàng)建廣播接收RepeatingAlarm.java
import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.util.Log;public class RepeatingAlarm extends BroadcastReceiver{ @Override public void onReceive(Context context, Intent intent) { if (intent.getAction()!=null&&intent.getAction().equals("com.gcc.alarm")) {//自定義的action intent = new Intent(context,AlarmActivity.class); intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); context.startActivity(intent); } }}
2.廣播在Manifest.xml中配置:
<receiver android:name=".RepeatingAlarm" > <intent-filter > <action android:name="com.gcc.alarm"/> </intent-filter> </receiver>
3.通過(guò)代碼設(shè)置一個(gè)鬧鐘
Intent intent = new Intent(this, RepeatingAlarm.class);intent.setAction("com.gcc.alarm");PendingIntent sender = PendingIntent.getBroadcast(this, 0, intent, 0);// Schedule the alarm!AlarmManager am = (AlarmManager)getSystemService(ALARM_SERVICE); am.set(AlarmManager.RTC, c.getTimeInMillis(), sender);//c為設(shè)置鬧鐘的時(shí)間的Calendar對(duì)象
4.通過(guò)代碼取消一個(gè)鬧鐘:
/** * 取消鬧鐘 */private void cancleAlarm(){ Intent intent = new Intent(AlarmActivity.this,RepeatingAlarm.class); intent.setAction("com.gcc.alarm"); PendingIntent sender = PendingIntent.getBroadcast(AlarmActivity.this, 0, intent, 0); // And cancel the alarm. AlarmManager am = (AlarmManager)getSystemService(ALARM_SERVICE); am.cancel(sender);//取消鬧鐘 }
5.鬧鐘響是彈出的對(duì)化框并播放音樂(lè)用AlarmActivity.java類(lèi)實(shí)現(xiàn)
import android.app.Activity;import android.app.AlarmManager;import android.app.AlertDialog;import android.app.PendingIntent;import android.content.Context;import android.content.DialogInterface;import android.content.Intent;import android.content.res.AssetFileDescriptor;import android.media.MediaPlayer;import android.os.Bundle;public class AlarmActivity extends Activity { MediaPlayer mp; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.aty_alarm); mp = new MediaPlayer(); AssetFileDescriptor file = getResources().openRawResourceFd(R.raw.beep); try { mp.setDataSource(file.getFileDescriptor(), file.getStartOffset(), file.getLength()); mp.prepare(); file.close(); } catch (IOException e) { e.printStackTrace(); } mp.setVolume(0.5f, 0.5f); mp.setLooping(true); mp.start(); alarmOialog(); } @Override protected void onResume() { super.onResume(); } @Override protected void onDestroy() { super.onDestroy(); if (mp != null) { if (mp.isPlaying()) { mp.stop(); } mp.release(); } } public void alarmOialog() { AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setMessage("你有未處理的事件"); builder.setPositiveButton("稍后提醒", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { alarm(); finish(); } }); builder.setNegativeButton("停止", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { cancleAlarm(); finish();// 關(guān)閉窗口 } }); builder.show().setCanceledOnTouchOutside(false); ; } /** * 取消鬧鐘 */ private void cancleAlarm() { // Create the same intent, and thus a matching IntentSender, for // the one that was scheduled. Intent intent = new Intent(AlarmActivity.this, RepeatingAlarm.class); intent.setAction("com.gcc.alarm"); PendingIntent sender = PendingIntent.getBroadcast(AlarmActivity.this, 0, intent, 0); // And cancel the alarm. AlarmManager am = (AlarmManager) getSystemService(ALARM_SERVICE); am.cancel(sender); } private void alarm() { // 獲取系統(tǒng)的鬧鐘服務(wù) AlarmManager am = (AlarmManager) getSystemService(Context.ALARM_SERVICE); // 觸發(fā)鬧鐘的時(shí)間(毫秒) long triggerTime = System.currentTimeMillis() + 10000; Intent intent = new Intent(this, RepeatingAlarm.class); intent.setAction("com.gcc.alarm"); PendingIntent op = PendingIntent.getBroadcast(this, 0, intent, 0); // 啟動(dòng)一次只會(huì)執(zhí)行一次的鬧鐘 am.set(AlarmManager.RTC, triggerTime, op); // 指定時(shí)間重復(fù)執(zhí)行鬧鐘 // am.setRepeating(AlarmManager.RTC,triggerTime,2000,op); }}
6.注:
1.aty_alarm.xml為空布局,不需添加任何組件 2.使用MediaPlayer播放res/raw目錄下音頻文件的方法如下:
mp = new MediaPlayer(); AssetFileDescriptor file = getResources().openRawResourceFd(R.raw.beep); try { mp.setDataSource(file.getFileDescriptor(), file.getStartOffset(), file.getLength());
看完上述內(nèi)容,你們掌握Android中怎么實(shí)現(xiàn)簡(jiǎn)易鬧鐘功能的方法了嗎?如果還想學(xué)到更多技能或想了解更多相關(guān)內(nèi)容,歡迎關(guān)注創(chuàng)新互聯(lián)行業(yè)資訊頻道,感謝各位的閱讀!
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