“翻转静音”的Android实现 android 翻转静音

“翻转静音”的Android实现

有朋友很想要Symbian系统上来电话时翻转静音的功能,于是帮其实现之。

因其手机为Android1.5版本,所以使用了部分老旧的API,参考时请注意。

  

要求功能:

设置是否开启翻转静音功能——上图“电话”选项。

设置功能开始状态下在托盘区是否显示图标——上图“托盘图标”选项。

设置触发静音的翻转角度——上图“翻转触发角度”选项,另点击“当前手机角度”可直接将触发角度设为当前手机倾斜角度。

详细见下图:



程序设计:

主体结构

提供用户设置的界面——TurnSilenceActivity

在后台运行,来电话时监视翻转进行静音的服务——TurnSilenceService

接受系统消息,在开机时启动翻转静音服务——TurnSilenceReceiver

主要技术

获知来电话事件——PhoneStateListener

获取手机倾斜角度——TYPE_ACCELEROMETER

改变手机振铃模式——AUDIO_SERVICE

显示托盘图标——NOTIFICATION_SERVICE

保存用户设定——SharedPreferences

详细见下图:



代码实现:

TurnSilenceReceiver.java

public class TurnSilenceReceiver extends BroadcastReceiver {

@Override

public void onReceive(Context context, Intent intent) {

TurnSilenceResource mTsRes = new TurnSilenceResource(context);

boolean optCallFlg = mTsRes.getOptCallValue();

if (true == optCallFlg) {

TurnSilenceUtility.startService(mTsRes, TurnSilenceService.class,

TurnSilenceActivity.class);

}

}

}TurnSilenceActivity.java

public class TurnSilenceActivity extends PreferenceActivity implements

OnPreferenceChangeListener, OnPreferenceClickListener {

private SensorManager mSensorMgr;

private Sensor mGravitySensor;

private double mDegreeDbl;

private TurnSilenceResource mTsRes;

private EditTextPreference mOptTriggerDegreeEditTextPref;

private Preference mOptRealDegreePref;

private final SensorEventListener mSensorEventListener = new SensorEventListener() {

@Override

public void onAccuracyChanged(Sensor sensor, int accuracy) {

}

@Override

public void onSensorChanged(SensorEvent event) {

double g = TurnSilenceUtility.GRAVITY;

double degreeDbl;

String degreeStr;

if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER) {

degreeDbl = event.values[SensorManager.DATA_Z];

if (g < Math.abs(degreeDbl)) {

g = Math.abs(degreeDbl);

}

degreeDbl = Math.asin(degreeDbl / g);

mDegreeDbl = degreeDbl * TurnSilenceUtility.DEGREE_PI / Math.PI;

degreeStr = String.format(mTsRes.getOptRealDegreeFormat(),

mDegreeDbl);

mOptRealDegreePref.setSummary(degreeStr);

}

}

};

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

addPreferencesFromResource(R.layout.options);

mTsRes = new TurnSilenceResource(this);

getPreferenceScreen().findPreference(mTsRes.getOptCallKey())

.setOnPreferenceChangeListener(this);

mOptRealDegreePref = getPreferenceScreen().findPreference(

mTsRes.getOptRealDegreeKey());

mOptRealDegreePref.setOnPreferenceClickListener(this);

mOptTriggerDegreeEditTextPref = (EditTextPreference) getPreferenceScreen()

.findPreference(mTsRes.getOptTriggerDegreeKey());

“翻转静音”的Android实现 android 翻转静音
mOptTriggerDegreeEditTextPref.setOnPreferenceChangeListener(this);

if (true == mTsRes.getOptCallValue()) {

TurnSilenceUtility.startService(mTsRes, TurnSilenceService.class,

TurnSilenceActivity.class);

}

mSensorMgr = (SensorManager) getSystemService(Context.SENSOR_SERVICE);

mGravitySensor = mSensorMgr.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);

}

@Override

protected void onResume() {

super.onResume();

mSensorMgr.registerListener(mSensorEventListener, mGravitySensor,

SensorManager.SENSOR_DELAY_NORMAL);

}

@Override

protected void onPause() {

mSensorMgr.unregisterListener(mSensorEventListener);

super.onPause();

}

@Override

public boolean onPreferenceChange(Preference preference, Object newValue) {

String key;

boolean ret = false;

key = preference.getKey();

if (mTsRes.getOptCallKey().equals(key)) {

if (true == mTsRes.getOptCallValue()) {

TurnSilenceUtility

.stopService(mTsRes, TurnSilenceService.class);

} else {

TurnSilenceUtility.startService(mTsRes,

TurnSilenceService.class, TurnSilenceActivity.class);

}

ret = true;

} else if (mTsRes.getOptTriggerDegreeKey().equals(key)) {

try {

Double.parseDouble((String) newValue);

ret = true;

} catch (NumberFormatException e) {

ret = false;

}

}

return ret;

}

@Override

public boolean onPreferenceClick(Preference preference) {

String key = preference.getKey();

if (mTsRes.getOptRealDegreeKey().equals(key)) {

String degreeStr;

degreeStr = Double.toString(mDegreeDbl);

mOptTriggerDegreeEditTextPref.setText(degreeStr);

}

return true;

}

@Override

public boolean onCreateOptionsMenu(Menu menu) {

super.onCreateOptionsMenu(menu);

MenuInflater inflater = getMenuInflater();

inflater.inflate(R.menu.menu, menu);

return true;

}

@Override

public boolean onOptionsItemSelected(MenuItem item) {

switch (item.getItemId()) {

case R.id.item_about:

startActivity(new Intent(this, TurnSilenceAbout.class));

return true;

case R.id.item_exit:

mSensorMgr.unregisterListener(mSensorEventListener);

finish();

return true;

}

return false;

}

}TurnSilenceService.java

public class TurnSilenceService extends Service implements

OnSharedPreferenceChangeListener {

private NotificationManager mNotificationMgr;

private TelephonyManager mTelephonyMgr;

private AudioManager mAudioMgr;

private SensorManager mSensorMgr;

private Sensor mGravitySensor;

private boolean mGravitySensorFlg = false;

private boolean mUpwardFlg = false;

private int mRingerMode;

private double mTriggerDegree;

private TurnSilenceResource mTsRes;

private Class<?> mMainClass;

private final PhoneStateListener mPhoneStateListener = new PhoneStateListener() {

@Override

public void onCallStateChanged(final int state,

final String incomingNumber) {

switch (state) {

case TelephonyManager.CALL_STATE_RINGING:

if (false == mGravitySensorFlg) {

mRingerMode = mAudioMgr.getRingerMode();

if (AudioManager.RINGER_MODE_SILENT != mRingerMode) {

mSensorMgr.registerListener(mSensorEventListener,

mGravitySensor,

SensorManager.SENSOR_DELAY_NORMAL);

mGravitySensorFlg = true;

}

}

break;

case TelephonyManager.CALL_STATE_OFFHOOK:

case TelephonyManager.CALL_STATE_IDLE:

if (true == mGravitySensorFlg) {

mSensorMgr.unregisterListener(mSensorEventListener);

mAudioMgr.setRingerMode(mRingerMode);

mGravitySensorFlg = false;

}

break;

default:

break;

}

}

};

private final SensorEventListener mSensorEventListener = new SensorEventListener() {

@Override

public void onAccuracyChanged(Sensor sensor, int accuracy) {

}

@Override

public void onSensorChanged(SensorEvent event) {

if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER) {

if (event.values[SensorManager.DATA_Z] >= mTriggerDegree) {

mUpwardFlg = true;

} else {

if (true == mUpwardFlg) {

mAudioMgr

.setRingerMode(AudioManager.RINGER_MODE_SILENT);

mUpwardFlg = false;

}

}

}

}

};

@Override

public IBinder onBind(Intent intent) {

return null;

}

@Override

public void onCreate() {

super.onCreate();

mTsRes = new TurnSilenceResource(this);

mTsRes.regOnSharedPrefChangeListener(this);

mTriggerDegree = getTriggerDegree();

mTelephonyMgr = (TelephonyManager) this

.getSystemService(Context.TELEPHONY_SERVICE);

mTelephonyMgr.listen(mPhoneStateListener,

PhoneStateListener.LISTEN_CALL_STATE);

mAudioMgr = (AudioManager) getSystemService(Context.AUDIO_SERVICE);

mSensorMgr = (SensorManager) getSystemService(Context.SENSOR_SERVICE);

mGravitySensor = mSensorMgr.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);

mNotificationMgr = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

}

@Override

public void onStart(Intent intent, int startId) {

String str;

str = intent.getExtras().getString(mTsRes.getDataMainClassKey());

try {

mMainClass = Class.forName(str);

} catch (ClassNotFoundException e) {

e.printStackTrace();

}

if (true == mTsRes.getOptTrayValue()) {

showTrayIcon();

}

}

@Override

public void onDestroy() {

if (true == mGravitySensorFlg) {

mSensorMgr.unregisterListener(mSensorEventListener);

mAudioMgr.setRingerMode(mRingerMode);

mGravitySensorFlg = false;

}

mTelephonyMgr.listen(mPhoneStateListener,

PhoneStateListener.LISTEN_NONE);

mTsRes.unregOnSharedPrefChangeListener(this);

if (true == mTsRes.getOptTrayValue()) {

hideTrayIcon();

}

super.onDestroy();

}

@Override

public void onSharedPreferenceChanged(SharedPreferences sharedPref,

String key) {

if (mTsRes.getOptTriggerDegreeKey().equals(key)) {

mTriggerDegree = getTriggerDegree();

if (true == mTsRes.getOptTrayValue()) {

showTrayIcon();

}

} else if (mTsRes.getOptTrayKey().equals(key)) {

if (true == mTsRes.getOptTrayValue()) {

showTrayIcon();

} else {

hideTrayIcon();

}

}

}

private double getTriggerDegree() {

double degreeDbl;

String degreeStr = mTsRes.getOptTriggerDegreeValue();

degreeDbl = Double.parseDouble(degreeStr);

degreeDbl = degreeDbl * Math.PI / TurnSilenceUtility.DEGREE_PI;

degreeDbl = Math.sin(degreeDbl);

degreeDbl = degreeDbl * TurnSilenceUtility.GRAVITY;

return degreeDbl;

}

private void showTrayIcon() {

int trayIconID = 0;

String tickerText = null;

long when = 0L;

Notification notification;

String trayNotificationTitle;

String trayNotificationFormat;

String trayNotificationText;

Intent trayNotificationIntent;

PendingIntent trayNotificationPendingIntent;

double degreeDbl = 0;

String degreeStr = null;

trayNotificationTitle = mTsRes.getOptTrayNotificationTitle();

trayNotificationFormat = mTsRes.getOptTrayNotificationFormat();

degreeStr = mTsRes.getOptTriggerDegreeValue();

degreeDbl = Double.parseDouble(degreeStr);

trayNotificationText = String.format(trayNotificationFormat, degreeDbl);

trayNotificationIntent = new Intent(this, mMainClass);

trayNotificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP

| Intent.FLAG_ACTIVITY_NEW_TASK);

trayNotificationPendingIntent = PendingIntent.getActivity(this,

TurnSilenceUtility.NOTIFICATION_ID_TRAY,

trayNotificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);

trayIconID = mTsRes.getTrayIconId();

tickerText = mTsRes.getOptTrayTickerText();

when = System.currentTimeMillis();

notification = new Notification(trayIconID, tickerText, when);

notification.flags = Notification.FLAG_ONGOING_EVENT;

notification.setLatestEventInfo(this, trayNotificationTitle,

trayNotificationText, trayNotificationPendingIntent);

mNotificationMgr.notify(TurnSilenceUtility.NOTIFICATION_ID_TRAY,

notification);

return;

}

private void hideTrayIcon() {

mNotificationMgr.cancel(TurnSilenceUtility.NOTIFICATION_ID_TRAY);

return;

}

}TurnSilenceAbout.java

public class TurnSilenceAbout extends Activity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.about);

}

}TurnSilenceUtility.java

public class TurnSilenceUtility {

public static final double GRAVITY = 9.81;

public static final double DEGREE_PI = 180;

public static final int NOTIFICATION_ID_TRAY = 0;

public static void startService(TurnSilenceResource tsRes, Class<?> destCls,

Class<?> mainCls) {

Context context;

String str = null;

Intent i;

context = tsRes.getAppContext();

i = new Intent(context, destCls);

str = mainCls.getCanonicalName();

i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

i.putExtra(tsRes.getDataMainClassKey(), str);

context.startService(i);

}

public static void stopService(TurnSilenceResource tsRes, Class<?> destCls) {

Context context;

Intent i;

context = tsRes.getAppContext();

i = new Intent(context, destCls);

context.stopService(i);

}

}TurnSilenceResource.java

public class TurnSilenceResource {

private Context mAppContext;

private SharedPreferences mSharedPref;

private String mOptCallKey = null;

private boolean mOptCallDefaultValue = false;

private String mOptRealDegreeKey = null;

private String mOptRealDegreeFormat = null;

private String mOptTriggerDegreeKey = null;

private String mOptTriggerDegreeDefaultValue = null;

private String mOptTrayKey = null;

private boolean mOptTrayDefaultValue = false;

private String mOptTrayTickerText = null;

private String mOptTrayNotificationTitle = null;

private String mOptTrayNotificationFormat = null;

private String mDataMainClassKey = null;

private int mTrayIcon = 0;

public TurnSilenceResource(Context context) {

getStringValue(context);

getResId();

mSharedPref = PreferenceManager.getDefaultSharedPreferences(context);

mAppContext = context;

}

public String getOptCallKey() {

return mOptCallKey;

}

public String getOptRealDegreeKey() {

return mOptRealDegreeKey;

}

public String getOptRealDegreeFormat() {

return mOptRealDegreeFormat;

}

public String getOptTriggerDegreeKey() {

return mOptTriggerDegreeKey;

}

public String getOptTrayKey() {

return mOptTrayKey;

}

public String getOptTrayTickerText() {

return mOptTrayTickerText;

}

public String getOptTrayNotificationTitle() {

return mOptTrayNotificationTitle;

}

public String getOptTrayNotificationFormat() {

return mOptTrayNotificationFormat;

}

public String getDataMainClassKey() {

return mDataMainClassKey;

}

public Context getAppContext() {

return mAppContext;

}

public int getTrayIconId() {

return mTrayIcon;

}

public boolean getOptCallValue() {

return mSharedPref.getBoolean(mOptCallKey, mOptCallDefaultValue);

}

public String getOptTriggerDegreeValue() {

return mSharedPref.getString(mOptTriggerDegreeKey,

mOptTriggerDegreeDefaultValue);

}

public boolean getOptTrayValue() {

return mSharedPref.getBoolean(mOptTrayKey, mOptTrayDefaultValue);

}

public void regOnSharedPrefChangeListener(

OnSharedPreferenceChangeListener listener) {

mSharedPref.registerOnSharedPreferenceChangeListener(listener);

}

public void unregOnSharedPrefChangeListener(

OnSharedPreferenceChangeListener listener) {

mSharedPref.unregisterOnSharedPreferenceChangeListener(listener);

}

private void getStringValue(Context context) {

String str = null;

mOptCallKey = context.getResources().getString(R.string.opt_call_key);

str = context.getResources().getString(R.string.opt_call_default_value);

mOptCallDefaultValue = Boolean.valueOf(str);

mOptRealDegreeKey = context.getResources().getString(

R.string.opt_real_degree_key);

mOptTriggerDegreeKey = context.getResources().getString(

R.string.opt_trigger_degree_key);

mOptTriggerDegreeDefaultValue = context.getResources().getString(

R.string.opt_trigger_degree_default_value);

mOptRealDegreeFormat = context.getResources().getString(

R.string.opt_real_degree_format);

mOptTrayKey = context.getResources().getString(R.string.opt_tray_key);

mOptTrayDefaultValue = false;

str = context.getResources().getString(R.string.opt_tray_default_value);

mOptTrayDefaultValue = Boolean.valueOf(str);

mOptTrayTickerText = context.getResources().getString(

R.string.opt_tray_ticker_text);

mOptTrayNotificationTitle = context.getResources().getString(

R.string.opt_tray_notification_title);

mOptTrayNotificationFormat = context.getResources().getString(

R.string.opt_tray_notification_title);

mOptTrayNotificationFormat = context.getResources().getString(

R.string.opt_tray_notification_format);

mDataMainClassKey = context.getResources().getString(

R.string.data_main_class_key);

}

private void getResId() {

mTrayIcon = R.drawable.icon;

}

}res/layout/option.xml

<?xml version="1.0" encoding="utf-8"?>

<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">

<CheckBoxPreference android:key="@string/opt_call_key"

android:title="@string/opt_call_title" android:summary="@string/opt_call_summary"

android:defaultValue="@string/opt_call_default_value" />

<Preference android:key="@string/opt_real_degree_key"

android:title="@string/opt_real_degree_title" android:summary="@string/opt_real_degree_summary" />

<EditTextPreference android:key="@string/opt_trigger_degree_key"

android:title="@string/opt_trigger_degree_title" android:summary="@string/opt_trigger_degree_summary"

android:dialogTitle="@string/opt_trigger_degree_dialogtitle"

android:defaultValue="@string/opt_trigger_degree_default_value"

android:inputType="numberSigned|numberDecimal" />

<CheckBoxPreference android:key="@string/opt_tray_key"

android:title="@string/opt_tray_title" android:summary="@string/opt_tray_summary"

android:defaultValue="@string/opt_tray_default_value" />

</PreferenceScreen> res/layout/about.xml

<?xml version="1.0" encoding="utf-8"?>

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="fill_parent" android:layout_height="fill_parent"

android:padding="10dip">

<TextView android:id="@+id/about_content"

android:layout_width="wrap_content" android:layout_height="wrap_content"

android:text="@string/about_text" />

</ScrollView> res/menu/menu.xml

<?xml version="1.0" encoding="utf-8"?>

<menu xmlns:android="http://schemas.android.com/apk/res/android">

<item android:id="@+id/item_about" android:title="@string/item_about_label"

android:alphabeticShortcut="@string/item_about_shortcut" />

<item android:id="@+id/item_exit" android:title="@string/item_exit_label"

android:alphabeticShortcut="@string/item_exit_shortcut" />

</menu> res/values/strings.xml

<?xml version="1.0" encoding="utf-8"?>

<resources>

<string name="hello">Hello World, TurnSilence!</string>

<string name="app_name">翻转静音</string>

<string name="opt_call_key">opt_call</string>

<string name="opt_call_title">电话</string>

<string name="opt_call_summary">来电时进行翻转静音</string>

<string name="opt_call_default_value">true</string>

<string name="opt_real_degree_key">opt_real_degree</string>

<string name="opt_real_degree_title">当前手机角度</string>

<string name="opt_real_degree_summary">设置翻转触发角度</string>

<string name="opt_real_degree_format">点击设置翻转触发角度为:%1$.0f°</string>

<string name="opt_trigger_degree_key">opt_trigger_degree</string>

<string name="opt_trigger_degree_title">翻转触发角度</string>

<string name="opt_trigger_degree_dialogtitle">输入角度</string>

<string name="opt_trigger_degree_summary">指定翻转触发角度</string>

<string name="opt_trigger_degree_default_value">-60</string>

<string name="opt_tray_key">opt_tray_key</string>

<string name="opt_tray_title">托盘图标</string>

<string name="opt_tray_summary">服务时显示托盘图标</string>

<string name="opt_tray_default_value">true</string>

<string name="item_about_label">关于</string>

<string name="item_about_shortcut">a</string>

<string name="item_exit_label">退出</string>

<string name="item_exit_shortcut">x</string>

<string name="about_title">About</string>

<string name="about_text">



送给我的朋友;)

</string>

<string name="opt_tray_ticker_text">翻转静音启动!</string>

<string name="opt_tray_notification_title">翻转静音</string>

<string name="opt_tray_notification_format">触发角度为:%1$.0f°</string>

<string name="data_main_class_key">data_main_class_key</string>

</resources> AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

package="org.mtyy110.android.turnsilence" android:versionCode="1"

android:versionName="1.0">

<application android:icon="@drawable/icon" android:label="@string/app_name">

<receiver android:name=".TurnSilenceReceiver">

<intent-filter>

<action android:name="android.intent.action.BOOT_COMPLETED" />

<category android:name="android.intent.category.HOME" />

</intent-filter>

</receiver>

<service android:name=".TurnSilenceService">

</service>

<activity android:name=".TurnSilenceActivity" android:label="@string/app_name">

<intent-filter>

<action android:name="android.intent.action.MAIN" />

<category android:name="android.intent.category.LAUNCHER" />

</intent-filter>

</activity>

<activity android:name=".TurnSilenceAbout" android:label="@string/about_title"

android:theme="@android:style/Theme.Dialog">

</activity>

</application>

<uses-sdk android:minSdkVersion="3" />

</manifest>

  

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