【導(dǎo)讀】1．綜述國(guó)內(nèi)外Android平臺(tái)相關(guān)技術(shù)的研究現(xiàn)狀；2．深入了解基于Android平臺(tái)的鬧鐘程序開(kāi)發(fā)環(huán)境以及相關(guān)技術(shù)；4．深入分析實(shí)現(xiàn)Android鬧鐘關(guān)鍵技術(shù)與實(shí)現(xiàn)過(guò)程；6．訓(xùn)練撰寫技術(shù)文檔與學(xué)位論文的能力。3．分析Android智能手機(jī)上鬧鐘的需求功能；1．內(nèi)容完整、層次清晰、敘述流暢、排版規(guī)范的畢業(yè)設(shè)計(jì)論文；[4]韓超.Android系統(tǒng)原理及開(kāi)發(fā)要點(diǎn)詳解[M].北京:電子工業(yè)出版社，[5]王世江.GoogleandroidSDK開(kāi)發(fā)范例大全[M].北京：人民郵電出版社，2020.[8]韓超.Android經(jīng)典應(yīng)用程序開(kāi)發(fā)[M].北京:人力資源出版社,2020.隨著移動(dòng)平臺(tái)的崛起，越來(lái)越多的傳統(tǒng)PC軟件被移植到移動(dòng)平臺(tái)，比如ipad，額，所以為Android用戶開(kāi)發(fā)滿足日常使用的軟件成為了現(xiàn)在的一大熱門。有非常高的實(shí)用價(jià)值和實(shí)際意義。細(xì)介紹了本系統(tǒng)的分析、設(shè)計(jì)與實(shí)現(xiàn)過(guò)程,最后對(duì)本論文做了總結(jié)。

　　

【正文】 dle icicle) { (icicle)。 setContentView()。 mAlarm = getIntent().getParcelableExtra()。 mAlarm = (getContentResolver(), )。 final String vol = (this).getString( , DEFAULT_VOLUME_BEHAVIOR)。 mVolumeBehavior = (vol)。 mVolumeBehavior = (this, , 70)。 findview()。 IntentFilter filter = new IntentFilter()。 ()。 ()。 registerReceiver(mReceiver, filter)。 } private void setTitle() { String label = (this)。 TextView title = (TextView) findViewById()。 (label)。 } 找畢業(yè)設(shè)計(jì)、項(xiàng)目源碼、編程視頻，就上碼農(nóng)網(wǎng) manong365 34 private void findview() { Button snooze = (Button) findViewById()。 ()。 (new () { @Override public void onClick(View v) { snooze()。 } })。 findViewById().setOnClickListener(new () { @Override public void onClick(View v) { dismiss(false)。 } })。 setTitle()。 } private void snooze() { if (!findViewById().isEnabled()) { dismiss(false)。 return。 } String snooze = (this, , DEFAULT_SNOOZE)。 int snoozeMinutes = (snooze)。 找畢業(yè)設(shè)計(jì)、項(xiàng)目源碼、編程視頻，就上碼農(nóng)網(wǎng) manong365 35 final long snoozeTime = () + (1000 * 60 * snoozeMinutes)。 (, , snoozeTime)。 final Calendar c = ()。 (snoozeTime)。 String label = (this)。 label = getString(, label)。 Intent cancelSnooze = new Intent(this, )。 ()。 (, )。 PendingIntent broadcast = (this, , cancelSnooze, 0)。 NotificationManager nm = getNotificationManager()。 Notification n = new Notification(, label, 0)。 (this, label, getString(, (this, c)), broadcast)。 |= | 。 (, n)。 String displayTime = getString(, snoozeMinutes)。 (, displayTime, ).show()。 stopService(new Intent())。 finish()。 } private NotificationManager getNotificationManager() { return (NotificationManager) getSystemService(NOTIFICATION_SERVICE)。 } 找畢業(yè)設(shè)計(jì)、項(xiàng)目源碼、編程視頻，就上碼農(nóng)網(wǎng) manong365 36 private void dismiss(boolean killed) { if (!killed) { NotificationManager nm = getNotificationManager()。 ()。 stopService(new Intent())。 } finish()。 } @Override protected void onNewIntent(Intent intent) { (intent)。 mAlarm = ()。 setTitle()。 } private final BroadcastReceiver mReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { String action = ()。 if (()) { snooze()。 } else if (()) { dismiss(false)。 } else { Alarm alarm = ()。 if (alarm != null amp。amp。 == ) { 找畢業(yè)設(shè)計(jì)、項(xiàng)目源碼、編程視頻，就上碼農(nóng)網(wǎng) manong365 37 dismiss(true)。 } } } }。 @Override protected void onResume() { ()。 if ((getContentResolver(), ) == null) { Button snooze = (Button) findViewById()。 (false)。 } } @Override public void onDestroy() { ()。 unregisterReceiver(mReceiver)。 } @Override public boolean dispatchKeyEvent(KeyEvent event) { boolean up = () == 。 switch (()) { case : case : case : case : 找畢業(yè)設(shè)計(jì)、項(xiàng)目源碼、編程視頻，就上碼農(nóng)網(wǎng) manong365 38 if (up) { switch (mVolumeBehavior) { case 1: snooze()。 break。 case 2: dismiss(false)。 break。 default: break。 } } return true。 default: break。 } return (event)。 } @Override public void onBackPressed() { return。 } } 找畢業(yè)設(shè)計(jì)、項(xiàng)目源碼、編程視頻，就上碼農(nóng)網(wǎng) manong365 39 外文原文 Android applications are written in the Java programming language. The Android SDK tools pile the code—along with any data and resource files—into an Android package, an archive file with an .apk suffix. All the code in a single .apk file is considered to be one application and is the file that Androidpowered devices use to install the application. Once installed on a device, each Android application lives in its own security sandbox: ? The Android operating system is a multiuser Linux system in which each application is a different user. ? By default, the system assigns each application a unique Linux user ID (the ID is used only by the system and is unknown to the application). The system sets permissions for all the files in an application so that only the user ID assigned to that application can access them. ? Each process has its own virtual machine (VM), so an application39。s code runs in isolation from other applications. ? By default, every application runs in its own Linux process. Android starts the process when any of the application39。s ponents need to be executed, then shuts down the process when it39。s no longer needed or when the system must recover memory for other applications. In this way, the Android system implements the principle of least privilege. That is, each application, by default, has access only to the ponents that it requires to do its work and no more. This creates a very secure environment in which an application cannot access parts of the system for which it is not given permission. However, there are ways for an application to share data with other applications and for an application to access system services: ? It39。s possible to arrange for two applications to share the same Linux user ID, in which case they are able to access each other39。s files. To conserve system resources, applications with the same user ID can also arrange to run in the same Linux process and share the same VM (the applications must also be signed with the same certificate). ? An application can request permission to access device data such as the user39。s contacts, SMS messages, the mountable storage (SD card), camera, Bluetooth, and more. All application permissions must be granted by the user at install time. That covers the basics regarding how an Android application exists within the system. The rest of this document introduces you to: ? The core framework