部分代码片段：
1、唤醒屏幕并解锁
public static void wakeUpAndUnlock(Context context){ KeyguardManager km= (KeyguardManager) context.getSystemService(Context.KEYGUARD_SERVICE); KeyguardManager.KeyguardLock kl = km.newKeyguardLock( "unLock" ); //解锁 kl.disableKeyguard(); //获取电源管理器对象 PowerManager pm=(PowerManager) context.getSystemService(Context.POWER_SERVICE); //获取PowerManager.WakeLock对象,后面的参数|表示同时传入两个值,最后的是LogCat里用的Tag PowerManager.WakeLock wl = pm.newWakeLock(PowerManager.ACQUIRE_CAUSES_WAKEUP | PowerManager.SCREEN_DIM_WAKE_LOCK, "bright" ); //点亮屏幕 wl.acquire(); //释放 wl.release(); }//需要添加权限<uses-permission android:name= "android.permission.WAKE_LOCK" /><uses-permission android:name= "android.permission.DISABLE_KEYGUARD" />
2、判断当前App处于前台还是后台状态
public static boolean isApplicationBackground( final Context context) {ActivityManager am = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);@SuppressWarnings ( "deprecation" )List<ActivityManager.RunningTaskInfo> tasks = am.getRunningTasks( 1 );if (!tasks.isEmpty()) {ComponentName topActivity = tasks.get( 0 ).topActivity;if (!topActivity.getPackageName().equals(context.getPackageName())) {return true ;}}return false ;}//需要添加权限android:name= "android.permission.GET_TASKS" />
3、判断当前手机是否处于锁屏(睡眠)状态
public static boolean isSleeping(Context context) {KeyguardManager kgMgr = (KeyguardManager) context.getSystemService(Context.KEYGUARD_SERVICE);boolean isSleeping = kgMgr.inKeyguardRestrictedInputMode();return isSleeping;}
4、判断当前是否有网络连接
public static boolean isOnline(Context context) {ConnectivityManager manager = (ConnectivityManager) context.getSystemService(Activity.CONNECTIVITY_SERVICE);NetworkInfo info = manager.getActiveNetworkInfo();if (info != null && info.isConnected()) {return true ;}return false ;}
5、判断当前是否是WIFI连接状态
public static boolean isWifiConnected(Context context) {ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);NetworkInfo wifiNetworkInfo = connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);if (wifiNetworkInfo.isConnected()) {return true ;}return false ;}
6、安装APK
public static void installApk(Context context, File file) {Intent intent = new Intent();intent.setAction( "android.intent.action.VIEW" );intent.addCategory( "android.intent.category.DEFAULT" );intent.setType( "application/vnd.android.package-archive" );intent.setDataAndType(Uri.fromFile(file),"application/vnd.android.package-archive" );intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);context.startActivity(intent);}
7、判断当前设备是否为手机
public static boolean isPhone(Context context) {TelephonyManager telephony = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);if (telephony.getPhoneType() == TelephonyManager.PHONE_TYPE_NONE) {return false ;} else {return true ;}}
8、获取当前设备宽高，单位px
@SuppressWarnings ( "deprecation" )public static int getDeviceWidth(Context context) {WindowManager manager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);return manager.getDefaultDisplay().getWidth();}@SuppressWarnings ( "deprecation" )public static int getDeviceHeight(Context context) {WindowManager manager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);return manager.getDefaultDisplay().getHeight();}
9、获取当前设备的IMEI，需要与上面的7一起使用
@TargetApi (Build.VERSION_CODES.CUPCAKE)public static String getDeviceIMEI(Context context) {String deviceId;if (isPhone(context)) {TelephonyManager telephony = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);deviceId = telephony.getDeviceId();} else {deviceId = Settings.Secure.getString(context.getContentResolver(),Settings.Secure.ANDROID_ID);}return deviceId;}
10、获取当前设备的MAC地址
public static String getMacAddress(Context context) {String macAddress;WifiManager wifi = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);WifiInfo info = wifi.getConnectionInfo();macAddress = info.getMacAddress();if ( null == macAddress) {return "" ;}macAddress = macAddress.replace( ":" , "" );return macAddress;}
11、获取当前程序的版本号
public static String getAppVersion(Context context) {String version = "0" ;try {version = context.getPackageManager().getPackageInfo(context.getPackageName(), 0 ).versionName;} catch (PackageManager.NameNotFoundException e) {e.printStackTrace();}return version;}
12、收集设备信息，用于信息统计分析
public static Properties collectDeviceInfo(Context context) {Properties mDeviceCrashInfo = new Properties();try {PackageManager pm = context.getPackageManager();PackageInfo pi = pm.getPackageInfo(context.getPackageName(),PackageManager.GET_ACTIVITIES);if (pi != null ) {mDeviceCrashInfo.put(VERSION_NAME,pi.versionName == null ? "not set" : pi.versionName);mDeviceCrashInfo.put(VERSION_CODE, pi.versionCode);}} catch (PackageManager.NameNotFoundException e) {Log.e(TAG, "Error while collect package info" , e);}Field[] fields = Build. class .getDeclaredFields();for (Field field : fields) {try {field.setAccessible( true );mDeviceCrashInfo.put(field.getName(), field.get( null ));} catch (Exception e) {Log.e(TAG, "Error while collect crash info" , e);}}return mDeviceCrashInfo;}public static String collectDeviceInfoStr(Context context) {Properties prop = collectDeviceInfo(context);Set deviceInfos = prop.keySet();StringBuilder deviceInfoStr = new StringBuilder( "{\n" );for (Iterator iter = deviceInfos.iterator(); iter.hasNext();) {Object item = iter.next();deviceInfoStr.append( "\t\t\t" + item + ":" + prop.get(item)+ ", \n" );}deviceInfoStr.append( "}" );return deviceInfoStr.toString();}
13、动态隐藏软键盘
@TargetApi (Build.VERSION_CODES.CUPCAKE)public static void hideSoftInput(Activity activity) {View view = activity.getWindow().peekDecorView();if (view != null ) {InputMethodManager inputmanger = (InputMethodManager) activity.getSystemService(Context.INPUT_METHOD_SERVICE);inputmanger.hideSoftInputFromWindow(view.getWindowToken(), 0 );}}@TargetApi (Build.VERSION_CODES.CUPCAKE)public static void hideSoftInput(Context context, EditText edit) {edit.clearFocus();InputMethodManager inputmanger = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);inputmanger.hideSoftInputFromWindow(edit.getWindowToken(), 0 );}
14、动态显示软键盘
@TargetApi (Build.VERSION_CODES.CUPCAKE)public static void showSoftInput(Context context, EditText edit) {edit.setFocusable( true );edit.setFocusableInTouchMode( true );edit.requestFocus();InputMethodManager inputManager = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);inputManager.showSoftInput(edit, 0 );}
15、动态显示或者是隐藏软键盘
@TargetApi (Build.VERSION_CODES.CUPCAKE)public static void toggleSoftInput(Context context, EditText edit) {edit.setFocusable( true );edit.setFocusableInTouchMode( true );edit.requestFocus();InputMethodManager inputManager = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);inputManager.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0 );}
16、主动回到Home，后台运行
public static void goHome(Context context) {Intent mHomeIntent = new Intent(Intent.ACTION_MAIN);mHomeIntent.addCategory(Intent.CATEGORY_HOME);mHomeIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK| Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);context.startActivity(mHomeIntent);}
17、获取状态栏高度
//注意，要在onWindowFocusChanged中调用，在onCreate中获取高度为0@TargetApi (Build.VERSION_CODES.CUPCAKE)public static int getStatusBarHeight(Activity activity) {Rect frame = new Rect();activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(frame);return frame.top;}
18、获取状态栏高度＋标题栏(ActionBar)高度
//(注意，如果没有ActionBar，那么获取的高度将和上面的是一样的，只有状态栏的高度)public static int getTopBarHeight(Activity activity) {return activity.getWindow().findViewById(Window.ID_ANDROID_CONTENT).getTop();}
19、获取MCC+MNC代码 (SIM卡运营商国家代码和运营商网络代码)
//仅当用户已在网络注册时有效, CDMA 可能会无效（中国移动：46000 //46002, 中国联通：46001,中国电信：46003）public static String getNetworkOperator(Context context) {TelephonyManager telephonyManager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);return telephonyManager.getNetworkOperator();}//返回移动网络运营商的名字//(例：中国联通、中国移动、中国电信) 仅当用户已在网络注册时有效, //CDMA 可能会无效)public static String getNetworkOperatorName(Context context) {TelephonyManager telephonyManager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);return telephonyManager.getNetworkOperatorName();}
20、返回移动终端类型
PHONE_TYPE_NONE :0 手机制式未知PHONE_TYPE_GSM :1 手机制式为GSM，移动和联通PHONE_TYPE_CDMA :2 手机制式为CDMA，电信PHONE_TYPE_SIP:3public static int getPhoneType(Context context) {TelephonyManager telephonyManager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);return telephonyManager.getPhoneType();}//判断手机连接的网络类型(2G,3G,4G)//联通的3G为UMTS或HSDPA，移动和联通的2G为GPRS或EGDE，电信的2G为CDMA，电信的3G为EVDOpublic class Constants {/*** Unknown network class*/public static final int NETWORK_CLASS_UNKNOWN = 0 ;/*** wifi net work*/public static final int NETWORK_WIFI = 1 ;/*** "2G" networks*/public static final int NETWORK_CLASS_2_G = 2 ;/*** "3G" networks*/public static final int NETWORK_CLASS_3_G = 3 ;/*** "4G" networks*/public static final int NETWORK_CLASS_4_G = 4 ;}public static int getNetWorkClass(Context context) {TelephonyManager telephonyManager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);switch (telephonyManager.getNetworkType()) {case WORK_TYPE_GPRS:case WORK_TYPE_EDGE:case WORK_TYPE_CDMA:case WORK_TYPE_1xRTT:case WORK_TYPE_IDEN:return WORK_CLASS_2_G;case WORK_TYPE_UMTS:case WORK_TYPE_EVDO_0:case WORK_TYPE_EVDO_A:case WORK_TYPE_HSDPA:case WORK_TYPE_HSUPA:case WORK_TYPE_HSPA:case WORK_TYPE_EVDO_B:case WORK_TYPE_EHRPD:case WORK_TYPE_HSPAP:return WORK_CLASS_3_G;case WORK_TYPE_LTE:return WORK_CLASS_4_G;default :return WORK_CLASS_UNKNOWN;}}//判断当前手机的网络类型(WIFI还是2,3,4G)//需要用到上面的方法public static int getNetWorkStatus(Context context) {int netWorkType = WORK_CLASS_UNKNOWN;ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);NetworkInfo networkInfo = connectivityManager.getActiveNetworkInfo();if (networkInfo != null && networkInfo.isConnected()) {int type = networkInfo.getType();if (type == ConnectivityManager.TYPE_WIFI) {netWorkType = WORK_WIFI;} else if (type == ConnectivityManager.TYPE_MOBILE) {netWorkType = getNetWorkClass(context);}}return netWorkType;}
21、把一个毫秒数转化成时间字符串
//格式为小时/分/秒/毫秒（如：24903600 –> 06小时55分03秒600毫秒）/*** @param millis* 要转化的毫秒数。* @param isWhole* 是否强制全部显示小时/分/秒/毫秒。* @param isFormat* 时间数字是否要格式化，如果true：少位数前面补全；如果false：少位数前面不补全。* @return 返回时间字符串：小时/分/秒/毫秒的格式（如：24903600 --> 06小时55分03秒600毫秒）。*/public static String millisToString( long millis, boolean isWhole,boolean isFormat) {String h = "" ;String m = "" ;String s = "" ;String mi = "" ;if (isWhole) {h = isFormat ? "00小时" : "0小时" ;m = isFormat ? "00分" : "0分" ;s = isFormat ? "00秒" : "0秒" ;mi = isFormat ? "00毫秒" : "0毫秒" ;}long temp = millis;long hper = 60 * 60 * 1000 ;long mper = 60 * 1000 ;long sper = 1000 ;if (temp / hper > 0 ) {if (isFormat) {h = temp / hper < 10 ? "0" + temp / hper : temp / hper + "" ;} else {h = temp / hper + "" ;}h += "小时" ;}temp = temp % hper;if (temp / mper > 0 ) {if (isFormat) {m = temp / mper < 10 ? "0" + temp / mper : temp / mper + "" ;} else {m = temp / mper + "" ;}m += "分" ;}temp = temp % mper;if (temp / sper > 0 ) {if (isFormat) {s = temp / sper < 10 ? "0" + temp / sper : temp / sper + "" ;} else {s = temp / sper + "" ;}}temp = temp % sper;mi = temp + "" ;if (isFormat) {if (temp < 100 && temp >= 10 ) {mi = "0" + temp;}if (temp < 10 ) {mi = "00" + temp;}}mi += "毫秒" ;return h + m + s + mi;}格式为小时/分/秒/毫秒（如：24903600 –> 06小时55分03秒）。/**** @param millis* 要转化的毫秒数。* @param isWhole* 是否强制全部显示小时/分/秒/毫秒。* @param isFormat* 时间数字是否要格式化，如果true：少位数前面补全；如果false：少位数前面不补全。* @return 返回时间字符串：小时/分/秒/毫秒的格式（如：24903600 --> 06小时55分03秒）。*/public static String millisToStringMiddle( long millis, boolean isWhole,boolean isFormat) {return millisToStringMiddle(millis, isWhole, isFormat, "小时" , "分钟" , "秒" );}public static String millisToStringMiddle( long millis, boolean isWhole,boolean isFormat, String hUnit, String mUnit, String sUnit) {String h = "" ;String m = "" ;String s = "" ;if (isWhole) {h = isFormat ? "00" + hUnit : "0" + hUnit;m = isFormat ? "00" + mUnit : "0" + mUnit;s = isFormat ? "00" + sUnit : "0" + sUnit;}long temp = millis;long hper = 60 * 60 * 1000 ;long mper = 60 * 1000 ;long sper = 1000 ;if (temp / hper > 0 ) {if (isFormat) {h = temp / hper < 10 ? "0" + temp / hper : temp / hper + "" ;} else {h = temp / hper + "" ;}
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