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Code Issues Pull Requests 2 Projects Releases Wiki Activity

注释 ui.AlarmAlertActivity

Browse Source
pull/13/head
chenqy 3 years ago
parent 4cab966c1d
commit 26aeb24738
2 changed files with 128 additions and 10 deletions
Show Stats Download Patch File Download Diff File

69
app/src/main/java/net/micode/notes/ui/AlarmAlertActivity.java
Unescape View File

@ -41,9 +41,24 @@ import java.io.IOException;
public class AlarmAlertActivity extends Activity implements OnClickListener, OnDismissListener { public class AlarmAlertActivity extends Activity implements OnClickListener, OnDismissListener {
/**
* 当前笔记的 ID
*/
private long mNoteId; private long mNoteId;
/**
* 笔记摘录，用于在对话框中显示当前笔记的内容
*/
private String mSnippet; private String mSnippet;
/**
* 笔记摘录预览的最大长度
*/
private static final int SNIPPET_PREW_MAX_LEN = 60; private static final int SNIPPET_PREW_MAX_LEN = 60;
/**
* 媒体播放器，用于播放提醒音
*/
MediaPlayer mPlayer; MediaPlayer mPlayer;
@Override @Override
@ -51,9 +66,11 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD
super.onCreate(savedInstanceState); super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE); requestWindowFeature(Window.FEATURE_NO_TITLE);
// 将 Activity 显示在锁屏界面上
final Window win = getWindow(); final Window win = getWindow();
win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED); win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
// 如果屏幕还未点亮，保持屏幕常亮并将屏幕点亮
if (!isScreenOn()) { if (!isScreenOn()) {
win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
| WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON
@ -61,19 +78,23 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD
| WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR); | WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR);
} }
// 获取 intent 中传递的笔记 ID，并根据 ID 获取笔记摘录
Intent intent = getIntent(); Intent intent = getIntent();
try { try {
mNoteId = Long.valueOf(intent.getData().getPathSegments().get(1)); mNoteId = Long.valueOf(intent.getData().getPathSegments().get(1));
mSnippet = DataUtils.getSnippetById(this.getContentResolver(), mNoteId); mSnippet = DataUtils.getSnippetById(this.getContentResolver(), mNoteId);
// 将笔记摘录截取到预设的最大长度，并添加省略号
mSnippet = mSnippet.length() > SNIPPET_PREW_MAX_LEN ? mSnippet.substring(0, mSnippet = mSnippet.length() > SNIPPET_PREW_MAX_LEN ? mSnippet.substring(0,
SNIPPET_PREW_MAX_LEN) + getResources().getString(R.string.notelist_string_info) SNIPPET_PREW_MAX_LEN) + getResources().getString(R.string.notelist_string_info)
: mSnippet; : mSnippet;
} catch (IllegalArgumentException e) { } catch (IllegalArgumentException e) {
// 如果 intent 中未传递有效的笔记 ID，则打印异常并退出 Activity
e.printStackTrace(); e.printStackTrace();
return; return;
} }
// 创建媒体播放器，并在数据库中找到当前笔记，如果存在则显示提醒对话框并播放提醒音
mPlayer = new MediaPlayer(); mPlayer = new MediaPlayer();
if (DataUtils.visibleInNoteDatabase(getContentResolver(), mNoteId, Notes.TYPE_NOTE)) { if (DataUtils.visibleInNoteDatabase(getContentResolver(), mNoteId, Notes.TYPE_NOTE)) {
showActionDialog(); showActionDialog();
@ -83,56 +104,82 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD
} }
} }
/**
* 判断屏幕是否点亮
*
* @return 如果屏幕点亮则返回 true，否则返回 false
*/
private boolean isScreenOn() { private boolean isScreenOn() {
PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE); PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
return pm.isScreenOn(); return pm.isScreenOn();
} }
/**
* 播放提醒音
*/
private void playAlarmSound() { private void playAlarmSound() {
// 获取默认的闹钟铃声 Uri
Uri url = RingtoneManager.getActualDefaultRingtoneUri(this, RingtoneManager.TYPE_ALARM); Uri url = RingtoneManager.getActualDefaultRingtoneUri(this, RingtoneManager.TYPE_ALARM);
// 获取静音模式下允许播放的音频流类型
int silentModeStreams = Settings.System.getInt(getContentResolver(), int silentModeStreams = Settings.System.getInt(getContentResolver(),
Settings.System.MODE_RINGER_STREAMS_AFFECTED, 0); Settings.System.MODE_RINGER_STREAMS_AFFECTED, 0);
// 根据静音模式设置媒体播放器的音频流类型
if ((silentModeStreams & (1 << AudioManager.STREAM_ALARM)) != 0) { if ((silentModeStreams & (1 << AudioManager.STREAM_ALARM)) != 0) {
mPlayer.setAudioStreamType(silentModeStreams); mPlayer.setAudioStreamType(silentModeStreams);
} else { } else {
mPlayer.setAudioStreamType(AudioManager.STREAM_ALARM); mPlayer.setAudioStreamType(AudioManager.STREAM_ALARM);
} }
// 设置媒体播放器的数据源，并开始播放
try { try {
mPlayer.setDataSource(this, url); mPlayer.setDataSource(this, url);
mPlayer.prepare(); mPlayer.prepare();
mPlayer.setLooping(true); mPlayer.setLooping(true);
mPlayer.start(); mPlayer.start();
} catch (IllegalArgumentException e) { } catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
e.printStackTrace(); e.printStackTrace();
} catch (SecurityException e) { } catch (SecurityException e) {
// TODO Auto-generated catch block
e.printStackTrace(); e.printStackTrace();
} catch (IllegalStateException e) { } catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace(); e.printStackTrace();
} catch (IOException e) { } catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace(); e.printStackTrace();
} }
} }
/**
* 显示提醒对话框
*/
private void showActionDialog() { private void showActionDialog() {
// 构建对话框，并设置标题、内容和两个按钮（确认和进入）
AlertDialog.Builder dialog = new AlertDialog.Builder(this); AlertDialog.Builder dialog = new AlertDialog.Builder(this);
dialog.setTitle(R.string.app_name); dialog.setTitle(R.string.app_name);
dialog.setMessage(mSnippet); dialog.setMessage(mSnippet);
dialog.setPositiveButton(R.string.notealert_ok, this); dialog.setPositiveButton(R.string.notealert_ok, this);
// 如果屏幕点亮，则添加“进入”按钮
if (isScreenOn()) { if (isScreenOn()) {
dialog.setNegativeButton(R.string.notealert_enter, this); dialog.setNegativeButton(R.string.notealert_enter, this);
} }
// 显示对话框，并设置对话框关闭时的监听器
dialog.show().setOnDismissListener(this); dialog.show().setOnDismissListener(this);
} }
/**
* 处理对话框按钮的点击事件
*
* @param dialog 点击的对话框
* @param which 点击的按钮类型（确定或取消）
*/
public void onClick(DialogInterface dialog, int which) { public void onClick(DialogInterface dialog, int which) {
// 根据不同的按钮类型执行不同的操作
switch (which) { switch (which) {
case DialogInterface.BUTTON_NEGATIVE: case DialogInterface.BUTTON_NEGATIVE:
// 如果点击了“进入”按钮，则打开笔记编辑界面并查看当前笔记
Intent intent = new Intent(this, NoteEditActivity.class); Intent intent = new Intent(this, NoteEditActivity.class);
intent.setAction(Intent.ACTION_VIEW); intent.setAction(Intent.ACTION_VIEW);
intent.putExtra(Intent.EXTRA_UID, mNoteId); intent.putExtra(Intent.EXTRA_UID, mNoteId);
@ -143,16 +190,28 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD
} }
} }
/**
* 对话框关闭时的回调方法
*
* @param dialog 对话框
*/
public void onDismiss(DialogInterface dialog) { public void onDismiss(DialogInterface dialog) {
// 停止播放提醒音并关闭 Activity
stopAlarmSound(); stopAlarmSound();
finish(); finish();
} }
/**
* 停止播放提醒音
*/
private void stopAlarmSound() { private void stopAlarmSound() {
// 如果媒体播放器不为 null，则停止播放并释放资源
if (mPlayer != null) { if (mPlayer != null) {
mPlayer.stop(); mPlayer.stop();
mPlayer.release(); mPlayer.release();
mPlayer = null; mPlayer = null;
} }
} }
} }

69
doc/ui/AlarmAlertActivity.java
Unescape View File

@ -41,9 +41,24 @@ import java.io.IOException;
public class AlarmAlertActivity extends Activity implements OnClickListener, OnDismissListener { public class AlarmAlertActivity extends Activity implements OnClickListener, OnDismissListener {
/**
* 当前笔记的 ID
*/
private long mNoteId; private long mNoteId;
/**
* 笔记摘录，用于在对话框中显示当前笔记的内容
*/
private String mSnippet; private String mSnippet;
/**
* 笔记摘录预览的最大长度
*/
private static final int SNIPPET_PREW_MAX_LEN = 60; private static final int SNIPPET_PREW_MAX_LEN = 60;
/**
* 媒体播放器，用于播放提醒音
*/
MediaPlayer mPlayer; MediaPlayer mPlayer;
@Override @Override
@ -51,9 +66,11 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD
super.onCreate(savedInstanceState); super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE); requestWindowFeature(Window.FEATURE_NO_TITLE);
// 将 Activity 显示在锁屏界面上
final Window win = getWindow(); final Window win = getWindow();
win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED); win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
// 如果屏幕还未点亮，保持屏幕常亮并将屏幕点亮
if (!isScreenOn()) { if (!isScreenOn()) {
win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
| WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON
@ -61,19 +78,23 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD
| WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR); | WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR);
} }
// 获取 intent 中传递的笔记 ID，并根据 ID 获取笔记摘录
Intent intent = getIntent(); Intent intent = getIntent();
try { try {
mNoteId = Long.valueOf(intent.getData().getPathSegments().get(1)); mNoteId = Long.valueOf(intent.getData().getPathSegments().get(1));
mSnippet = DataUtils.getSnippetById(this.getContentResolver(), mNoteId); mSnippet = DataUtils.getSnippetById(this.getContentResolver(), mNoteId);
// 将笔记摘录截取到预设的最大长度，并添加省略号
mSnippet = mSnippet.length() > SNIPPET_PREW_MAX_LEN ? mSnippet.substring(0, mSnippet = mSnippet.length() > SNIPPET_PREW_MAX_LEN ? mSnippet.substring(0,
SNIPPET_PREW_MAX_LEN) + getResources().getString(R.string.notelist_string_info) SNIPPET_PREW_MAX_LEN) + getResources().getString(R.string.notelist_string_info)
: mSnippet; : mSnippet;
} catch (IllegalArgumentException e) { } catch (IllegalArgumentException e) {
// 如果 intent 中未传递有效的笔记 ID，则打印异常并退出 Activity
e.printStackTrace(); e.printStackTrace();
return; return;
} }
// 创建媒体播放器，并在数据库中找到当前笔记，如果存在则显示提醒对话框并播放提醒音
mPlayer = new MediaPlayer(); mPlayer = new MediaPlayer();
if (DataUtils.visibleInNoteDatabase(getContentResolver(), mNoteId, Notes.TYPE_NOTE)) { if (DataUtils.visibleInNoteDatabase(getContentResolver(), mNoteId, Notes.TYPE_NOTE)) {
showActionDialog(); showActionDialog();
@ -83,56 +104,82 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD
} }
} }
/**
* 判断屏幕是否点亮
*
* @return 如果屏幕点亮则返回 true，否则返回 false
*/
private boolean isScreenOn() { private boolean isScreenOn() {
PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE); PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
return pm.isScreenOn(); return pm.isScreenOn();
} }
/**
* 播放提醒音
*/
private void playAlarmSound() { private void playAlarmSound() {
// 获取默认的闹钟铃声 Uri
Uri url = RingtoneManager.getActualDefaultRingtoneUri(this, RingtoneManager.TYPE_ALARM); Uri url = RingtoneManager.getActualDefaultRingtoneUri(this, RingtoneManager.TYPE_ALARM);
// 获取静音模式下允许播放的音频流类型
int silentModeStreams = Settings.System.getInt(getContentResolver(), int silentModeStreams = Settings.System.getInt(getContentResolver(),
Settings.System.MODE_RINGER_STREAMS_AFFECTED, 0); Settings.System.MODE_RINGER_STREAMS_AFFECTED, 0);
// 根据静音模式设置媒体播放器的音频流类型
if ((silentModeStreams & (1 << AudioManager.STREAM_ALARM)) != 0) { if ((silentModeStreams & (1 << AudioManager.STREAM_ALARM)) != 0) {
mPlayer.setAudioStreamType(silentModeStreams); mPlayer.setAudioStreamType(silentModeStreams);
} else { } else {
mPlayer.setAudioStreamType(AudioManager.STREAM_ALARM); mPlayer.setAudioStreamType(AudioManager.STREAM_ALARM);
} }
// 设置媒体播放器的数据源，并开始播放
try { try {
mPlayer.setDataSource(this, url); mPlayer.setDataSource(this, url);
mPlayer.prepare(); mPlayer.prepare();
mPlayer.setLooping(true); mPlayer.setLooping(true);
mPlayer.start(); mPlayer.start();
} catch (IllegalArgumentException e) { } catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
e.printStackTrace(); e.printStackTrace();
} catch (SecurityException e) { } catch (SecurityException e) {
// TODO Auto-generated catch block
e.printStackTrace(); e.printStackTrace();
} catch (IllegalStateException e) { } catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace(); e.printStackTrace();
} catch (IOException e) { } catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace(); e.printStackTrace();
} }
} }
/**
* 显示提醒对话框
*/
private void showActionDialog() { private void showActionDialog() {
// 构建对话框，并设置标题、内容和两个按钮（确认和进入）
AlertDialog.Builder dialog = new AlertDialog.Builder(this); AlertDialog.Builder dialog = new AlertDialog.Builder(this);
dialog.setTitle(R.string.app_name); dialog.setTitle(R.string.app_name);
dialog.setMessage(mSnippet); dialog.setMessage(mSnippet);
dialog.setPositiveButton(R.string.notealert_ok, this); dialog.setPositiveButton(R.string.notealert_ok, this);
// 如果屏幕点亮，则添加“进入”按钮
if (isScreenOn()) { if (isScreenOn()) {
dialog.setNegativeButton(R.string.notealert_enter, this); dialog.setNegativeButton(R.string.notealert_enter, this);
} }
// 显示对话框，并设置对话框关闭时的监听器
dialog.show().setOnDismissListener(this); dialog.show().setOnDismissListener(this);
} }
/**
* 处理对话框按钮的点击事件
*
* @param dialog 点击的对话框
* @param which 点击的按钮类型（确定或取消）
*/
public void onClick(DialogInterface dialog, int which) { public void onClick(DialogInterface dialog, int which) {
// 根据不同的按钮类型执行不同的操作
switch (which) { switch (which) {
case DialogInterface.BUTTON_NEGATIVE: case DialogInterface.BUTTON_NEGATIVE:
// 如果点击了“进入”按钮，则打开笔记编辑界面并查看当前笔记
Intent intent = new Intent(this, NoteEditActivity.class); Intent intent = new Intent(this, NoteEditActivity.class);
intent.setAction(Intent.ACTION_VIEW); intent.setAction(Intent.ACTION_VIEW);
intent.putExtra(Intent.EXTRA_UID, mNoteId); intent.putExtra(Intent.EXTRA_UID, mNoteId);
@ -143,16 +190,28 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD
} }
} }
/**
* 对话框关闭时的回调方法
*
* @param dialog 对话框
*/
public void onDismiss(DialogInterface dialog) { public void onDismiss(DialogInterface dialog) {
// 停止播放提醒音并关闭 Activity
stopAlarmSound(); stopAlarmSound();
finish(); finish();
} }
/**
* 停止播放提醒音
*/
private void stopAlarmSound() { private void stopAlarmSound() {
// 如果媒体播放器不为 null，则停止播放并释放资源
if (mPlayer != null) { if (mPlayer != null) {
mPlayer.stop(); mPlayer.stop();
mPlayer.release(); mPlayer.release();
mPlayer = null; mPlayer = null;
} }
} }
} }

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