From d9eb8a85e1c2d0dedcd7469c99f6f38a066e2cfe Mon Sep 17 00:00:00 2001 From: weichunyi <2948523237@qq.com> Date: Sun, 25 May 2025 16:10:54 +0800 Subject: [PATCH] =?UTF-8?q?=E9=97=B9=E9=92=9F=E6=8F=90=E9=86=92=E7=B1=BBui?= =?UTF-8?q?=E6=B3=A8=E9=87=8A=E4=BF=AE=E6=94=B9?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../micode/notes/ui/AlarmAlertActivity.java | 81 ++++++++++++++----- 1 file changed, 61 insertions(+), 20 deletions(-) diff --git a/src/Notes-master/src/net/micode/notes/ui/AlarmAlertActivity.java b/src/Notes-master/src/net/micode/notes/ui/AlarmAlertActivity.java index 85723be..0e445cd 100644 --- a/src/Notes-master/src/net/micode/notes/ui/AlarmAlertActivity.java +++ b/src/Notes-master/src/net/micode/notes/ui/AlarmAlertActivity.java @@ -39,21 +39,27 @@ import net.micode.notes.tool.DataUtils; import java.io.IOException; - +/** + * 闹钟提醒Activity类 + * 功能：当便签提醒时间到达时显示提醒对话框并播放闹铃 + */ public class AlarmAlertActivity extends Activity implements OnClickListener, OnDismissListener { - private long mNoteId; - private String mSnippet; - private static final int SNIPPET_PREW_MAX_LEN = 60; - MediaPlayer mPlayer; + private long mNoteId; // 当前提醒便签的ID + private String mSnippet; // 便签内容摘要 + private static final int SNIPPET_PREW_MAX_LEN = 60; // 摘要预览最大长度 + MediaPlayer mPlayer; // 媒体播放器实例，用于播放闹铃 @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); + // 设置无标题栏 requestWindowFeature(Window.FEATURE_NO_TITLE); final Window win = getWindow(); + // 添加标志使界面在锁屏状态下也能显示 win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED); + // 如果屏幕未点亮，则添加相关标志保持屏幕唤醒 if (!isScreenOn()) { win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON @@ -61,11 +67,15 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD | WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR); } + // 获取启动此Activity的Intent Intent intent = getIntent(); try { + // 从Intent URI中解析出便签ID mNoteId = Long.valueOf(intent.getData().getPathSegments().get(1)); + // 根据ID从数据库获取便签内容摘要 mSnippet = DataUtils.getSnippetById(this.getContentResolver(), mNoteId); + // 如果摘要过长则截断并添加省略提示 mSnippet = mSnippet.length() > SNIPPET_PREW_MAX_LEN ? mSnippet.substring(0, SNIPPET_PREW_MAX_LEN) + getResources().getString(R.string.notelist_string_info) : mSnippet; @@ -74,65 +84,89 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD return; } + // 初始化媒体播放器 mPlayer = new MediaPlayer(); + // 检查便签是否仍然存在于数据库中 if (DataUtils.visibleInNoteDatabase(getContentResolver(), mNoteId, Notes.TYPE_NOTE)) { - showActionDialog(); - playAlarmSound(); + showActionDialog(); // 显示提醒对话框 + playAlarmSound(); // 播放闹铃声音 } else { - finish(); + finish(); // 如果便签已被删除则直接结束 } } + /** + * 检查屏幕是否处于点亮状态 + * @return boolean 屏幕点亮状态 + */ private boolean isScreenOn() { PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE); return pm.isScreenOn(); } + /** + * 播放闹铃声音方法 + */ private void playAlarmSound() { + // 获取系统默认闹铃铃声URI Uri url = RingtoneManager.getActualDefaultRingtoneUri(this, RingtoneManager.TYPE_ALARM); + // 获取系统设置的受静音模式影响的音频流 int silentModeStreams = Settings.System.getInt(getContentResolver(), Settings.System.MODE_RINGER_STREAMS_AFFECTED, 0); + // 根据系统设置设置音频流类型 if ((silentModeStreams & (1 << AudioManager.STREAM_ALARM)) != 0) { mPlayer.setAudioStreamType(silentModeStreams); } else { mPlayer.setAudioStreamType(AudioManager.STREAM_ALARM); } + try { + // 设置音频源并准备播放 mPlayer.setDataSource(this, url); mPlayer.prepare(); - mPlayer.setLooping(true); - mPlayer.start(); + mPlayer.setLooping(true); // 设置循环播放 + mPlayer.start(); // 开始播放 } catch (IllegalArgumentException e) { - // TODO Auto-generated catch block e.printStackTrace(); } catch (SecurityException e) { - // TODO Auto-generated catch block e.printStackTrace(); } catch (IllegalStateException e) { - // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { - // TODO Auto-generated catch block e.printStackTrace(); } } + /** + * 显示提醒操作对话框 + */ private void showActionDialog() { + // 创建AlertDialog构建器 AlertDialog.Builder dialog = new AlertDialog.Builder(this); + // 设置对话框标题和内容 dialog.setTitle(R.string.app_name); dialog.setMessage(mSnippet); + // 添加确定按钮 dialog.setPositiveButton(R.string.notealert_ok, this); + // 如果屏幕已点亮，则添加"进入"按钮 if (isScreenOn()) { dialog.setNegativeButton(R.string.notealert_enter, this); } + // 显示对话框并设置关闭监听 dialog.show().setOnDismissListener(this); } + /** + * 对话框按钮点击事件处理 + * @param dialog 对话框实例 + * @param which 被点击的按钮标识 + */ public void onClick(DialogInterface dialog, int which) { switch (which) { case DialogInterface.BUTTON_NEGATIVE: + // 点击"进入"按钮时跳转到便签编辑界面 Intent intent = new Intent(this, NoteEditActivity.class); intent.setAction(Intent.ACTION_VIEW); intent.putExtra(Intent.EXTRA_UID, mNoteId); @@ -143,16 +177,23 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD } } + /** + * 对话框关闭事件处理 + * @param dialog 对话框实例 + */ public void onDismiss(DialogInterface dialog) { - stopAlarmSound(); - finish(); + stopAlarmSound(); // 停止闹铃声音 + finish(); // 结束当前Activity } + /** + * 停止闹铃声音方法 + */ private void stopAlarmSound() { if (mPlayer != null) { - mPlayer.stop(); - mPlayer.release(); - mPlayer = null; + mPlayer.stop(); // 停止播放 + mPlayer.release(); // 释放资源 + mPlayer = null; // 置空引用 } } -} +} \ No newline at end of file