"Kyle, take you to tamp down the application layer" Beginner's common code snippet collation (i)

Reprint Please specify source: http://blog.csdn.net/zhaokaiqiang1992

The following content comes from the consolidation of multiple open source projects and the accumulation of their own projects

• • Dial number
  • Jump to dial-up interface
  • Send SMS
  • Wake the screen and unlock it
  • Determine if the current app is in the foreground or background state
  • Determine if the current phone is in a lock screen sleep state
  • Determine if there is currently an Internet connection
  • Determine whether the current WiFi connection status
  • Install APK
  • Determine if the current device is a mobile phone
  • Gets the current device width high unit px
  • Getting the IMEI of the current device needs to be used with the isphone above
  • Get the MAC address of the current device
  • Gets the version number of the current program

Dial number

publicstaticvoidcall(Context context, String phoneNumber) {        context.startActivity(new Intent(Intent.ACTION_CALL, Uri.parse("tel:" + phoneNumber)));    }

Jump to dial-up interface

publicstaticvoidcallDial(Context context, String phoneNumber) {        context.startActivity(new Intent(Intent.ACTION_DIAL, Uri.parse("tel:" + phoneNumber)));    }

Send SMS

publicstaticvoidsendSms(Context context, String phoneNumber,            String content) {        Uri uri = Uri.parse("smsto:"                "" : phoneNumber));        new Intent(Intent.ACTION_SENDTO, uri);        intent.putExtra("sms_body""" : content);        context.startActivity(intent);    }

Wake the screen and unlock it

public static void Wakeupandunlock (context context) {Keyguardmanager km= (Keyguardmanager) Context. Getsystemservice(Context. Keyguard_service); Keyguardmanager. KeyguardlockKL = km. Newkeyguardlock("UnLock"); Unlock KL. Disablekeyguard(); Get Power Manager Object PowerManager pm= (PowerManager) context. Getsystemservice(Context. POWER_service); Get PowerManager. WakeLockObject, followed by the parameter | Indicates that two values are passed in at the same time, and the last is the tag PowerManager used in Logcat.. WakeLockWL = PM. Newwakelock(PowerManager. Acquire_causes_wakeup | PowerManager. screen_dim_wake_lock,"Bright"); Lit screen WL. Acquire(); Release WL. Release(); }

Need to add permissions

<uses-permission android:name="android.permission.WAKE_LOCK" /><uses-permission android:name="android.permission.DISABLE_KEYGUARD" />

Determine if the current app is in the foreground or background state

 Public Static Boolean Isapplicationbackground(FinalContext 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; }

Need to add permissions

<uses-permission     android:name="android.permission.GET_TASKS" />

Determine if the current phone is in the lock screen (sleep) state

publicstaticbooleanisSleeping(Context context) {        KeyguardManager kgMgr = (KeyguardManager) context                .getSystemService(Context.KEYGUARD_SERVICE);        boolean isSleeping = kgMgr.inKeyguardRestrictedInputMode();        return isSleeping;    }

Determine if there is currently an Internet connection

publicstaticbooleanisOnline(Context context) {        ConnectivityManager manager = (ConnectivityManager) context                .getSystemService(Activity.CONNECTIVITY_SERVICE);        NetworkInfo info = manager.getActiveNetworkInfo();        ifnull && info.isConnected()) {            returntrue;        }        returnfalse;    }

Determine whether the current WiFi connection status

    publicstaticbooleanisWifiConnected(Context context) {        ConnectivityManager connectivityManager = (ConnectivityManager) context                .getSystemService(Context.CONNECTIVITY_SERVICE);        NetworkInfo wifiNetworkInfo = connectivityManager                .getNetworkInfo(ConnectivityManager.TYPE_WIFI);        if (wifiNetworkInfo.isConnected()) {            returntrue;        }        returnfalse;    }

Install 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);}

Determine if the current device is a mobile phone

    publicstaticbooleanisPhone(Context context) {        TelephonyManager telephony = (TelephonyManager) context                .getSystemService(Context.TELEPHONY_SERVICE);        if (telephony.getPhoneType() == TelephonyManager.PHONE_TYPE_NONE) {            returnfalse;        else {            returntrue;        }    }

Gets the current device width height, unit px

    @SuppressWarnings("Deprecation") Public Static int Getdevicewidth(Context context) {WindowManager manager = (windowmanager) context. Getsystemservice (Context.window_service);returnManager.getdefaultdisplay (). GetWidth (); }@SuppressWarnings("Deprecation") Public Static int Getdeviceheight(Context context) {WindowManager manager = (windowmanager) context. Getsystemservice (Context.window_service);returnManager.getdefaultdisplay (). GetHeight (); }

Gets the IMEI of the current device and needs to be used with the above Isphone ()

@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;}

Get the MAC address of the current device

    publicstaticgetMacAddress(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;    }

Gets the version number of the current program

    publicstatic String getAppVersion(Context context) {        version"0";        try {            version = context.getPackageManager().getPackageInfo(                    0).versionName;        catch (PackageManager.NameNotFoundException e) {            e.printStackTrace();        }        returnversion;    }

"Kyle, take you to tamp down the application layer" Beginner's common code snippet collation (i)