Common to method summary in Android development

1. Determine if the service is running
 public static Boolean isservicerunning (context context, String ServiceName) {
   boolean isrunning = false;
  activitymanager Activitymanager = (activitymanager) context
    . Getsystemservice (Context.activity_service);
  List<ActivityManager.RunningServiceInfo> servicelist = Activitymanager
     .getrunningservices (Integer.max_value);
  if (!) ( Servicelist.size () > 0) {
   return false;
  }
  for (int i = 0; i < servicelist.size (); i++) {
   runningserviceinfo Si = (runningserviceinfo) servicelist.get (i);
   if (Si.service.getClassName (). Equals (ServiceName)) {
    isrunning = True
    break;
   }
  }
  return isrunning;
 }

2. Determine if the memory card is plugged in
public static Boolean isexternalstorageavailable () {
String state = Environment.getexternalstoragestate ();
if (Environment.MEDIA_MOUNTED.equals (state)) {
return true;
} else {
return false;
}
}

3. Get the path to the file
public static string Getsdcardpath (String folderName) {
if (foldername!=null) {
String path = Environment.getexternalstoragedirectory ()
. GetAbsolutePath () + File.separator + folderName;
File File = new file (path);
if (!file.exists ()) {
File.mkdir ();
}
return path;
}else{
return null;
}
}

4. Get the phone IMEI
 public static String Getimei (Context ctx) {
  if (ctx!=null) {
    string IMEI = "";
   telephonymanager Telephonymanager = (telephonymanager) CTX
      . Getsystemservice (Context.telephony_service);
   if (Telephonymanager! = null)
    imei = Telephonymanager.getdeviceid ( );
   if (IMEI = = "")
    imei = "0";
   return IMEI;
  }else{
   return null;
  }
 }

5. Get the phone number
public static String Getphonenumber (Context ctx) {
if (ctx!=null) {
String number = "";
Telephonymanager Telephonymanager = (telephonymanager) ctx
. Getsystemservice (Context.telephony_service);
if (Telephonymanager! = null)
Number = Telephonymanager.getline1number ();
if (number = = "")
Number = "0";
return number;
}else{
return null;
}
}

6. Get Phone status information
public static String Fetch_status (Context ctx) {
Telephonymanager TM = (Telephonymanager) ctx
. Getsystemservice (Context.telephony_service);//

String str = "";
str + = "DeviceId (IMEI) =" + Tm.getdeviceid () + "\ n";
str + = "Devicesoftwareversion =" + tm.getdevicesoftwareversion ()
+ "\ n";
str + = "Line1number =" + tm.getline1number () + "\ n";
str + = "Networkcountryiso =" + tm.getnetworkcountryiso () + "\ n";
str + = "Networkoperator =" + tm.getnetworkoperator () + "\ n";
str + = "Networkoperatorname =" + tm.getnetworkoperatorname () + "\ n";
str + = "Networktype =" + tm.getnetworktype () + "\ n";
str + = "Honetype =" + tm.getphonetype () + "\ n";
str + = "Simcountryiso =" + tm.getsimcountryiso () + "\ n";
str + = "Simoperator =" + tm.getsimoperator () + "\ n";
str + = "Simoperatorname =" + tm.getsimoperatorname () + "\ n";
str + = "Simserialnumber =" + tm.getsimserialnumber () + "\ n";
str + = "Simstate =" + tm.getsimstate () + "\ n";
str + = "SubscriberId (IMSI) =" + Tm.getsubscriberid () + "\ n";
str + = "Voicemailnumber =" + tm.getvoicemailnumber () + "\ n";
return str;
}

7. Get Software version information
public static String getsoftwareversion (Context ctx) {
String Version = "";
try {
PackageInfo PackageInfo = Ctx.getpackagemanager (). Getpackageinfo (
Ctx.getpackagename (), 0);
Version = Packageinfo.versionname;
} catch (Packagemanager.namenotfoundexception e) {
E.printstacktrace ();
}
return version;
}

8. Get the current date
public static string Getcurrdate (string format) {
String Str_format = (format = = NULL | | format = = "")? " Yyyy-mm-dd HH:mm:ss "
: format;
Date date = new Date ();
SimpleDateFormat from = new SimpleDateFormat (Str_format);
String times = From.format (date);
return times;
}

9. Get Bitmap by URL
public static Bitmap Geturlbitmap (String uripic) throws Exception {
URL IMAGEURL = null;
Bitmap Bitmap = null;
try {
IMAGEURL = new URL (uripic);
} catch (Malformedurlexception e) {
E.printstacktrace ();
}
try {
HttpURLConnection conn = (httpurlconnection) imageUrl
. OpenConnection ();
Conn.setconnecttimeout (5*1000);
Conn.setreadtimeout (5*1000);
Conn.setdoinput (TRUE);
Conn.setdooutput (TRUE);
Conn.setusecaches (TRUE);
Conn.setrequestmethod ("POST");
Conn.connect ();
InputStream is = Conn.getinputstream ();
Bitmap = Bitmapfactory.decodestream (IS);
Is.close ();
} catch (IOException e) {
E.printstacktrace ();
}
return bitmap;
}

10. Hide App
public static void Hiddenapp (Context ctx) {
Packagemanager pm = Ctx.getpackagemanager ();
ResolveInfo Homeinfo = pm.resolveactivity (
New Intent (Intent.action_main)
. Addcategory (Intent.category_home), 0);
Activityinfo ai = homeinfo.activityinfo;
Intent startintent = new Intent (intent.action_main);
Startintent.addcategory (Intent.category_launcher);
Startintent.setcomponent (New ComponentName (Ai.packagename, ai.name));
Ctx.startactivity (startintent);
}

11. Exit the program (3 methods)
public static void Exitapp (Context ctx) {

Activitymanager am = (activitymanager)
Ctx.getsystemservice (Context.activity_service);
Am.restartpackage (Ctx.getpackagename ());

Intent Startmain = new Intent (intent.action_main);
Startmain.addcategory (Intent.category_home);
Startmain.setflags (Intent.flag_activity_new_task);
Ctx.startactivity (Startmain);
Android.os.Process.killProcess (Android.os.Process.myPid ());
System.exit (0);

Android.os.Process.killProcess (Android.os.Process.myPid ());
}

12. Check all non-system applications in your phone

public static list<packageinfo> Getallapps (context context) {

List<packageinfo> apps = new arraylist<packageinfo> ();

Packagemanager Pmanager = Context.getpackagemanager ();

Get all apps in your phone

list<packageinfo> paklist = pmanager.getinstalledpackages (0);

for (int i = 0; i < paklist.size (); i++) {

PackageInfo Pak = (packageinfo) paklist.get (i);

Determine if a non-system preinstalled application

if ((Pak.applicationInfo.flags & Pak.applicationInfo.FLAG_SYSTEM) <= 0) {

Customs applications

Apps.add (Pak);

}

}

return apps;

}

13. Find all apps that support sharing in your phone

public static list<resolveinfo> Getshareapps (context context)
{
list<resolveinfo> Mapps = new arraylist<resolveinfo> ();
Intent Intent = new Intent (intent.action_send, NULL);
Intent.addcategory (Intent.category_default);
Intent.settype ("Text/plain");
Packagemanager Pmanager = Context.getpackagemanager ();
Mapps = Pmanager
. Queryintentactivities (Intent, Packagemanager.component_enabled_state_default);
return Mapps;
}

14. Get the MAC address and IP address of the Andorid mobile WiFi connection

Public static String GetInfo ()

{

Wifimanager WiFi = (wifimanager) getsystemservice (Context.wifi_service);

Wifiinfo info = Wifi.getconnectioninfo ();

String Maxtext = info.getmacaddress ();

String Iptext = Inttoip (Info.getipaddress ());

String status = "";

if (wifi.getwifistate () = = wifimanager.wifi_state_enabled)

{

Status = "Wifi_state_enabled";

}

String SSID = Info.getssid ();

int networkid = Info.getnetworkid ();

int speed = Info.getlinkspeed ();

Return "Mac:" + Maxtext + "\n\r"

+ "IP:" + iptext + "\n\r"

+ "WiFi Status:" + Status + "\n\r"

+ "SSID:" + SSID + "\n\r"

+ "NET Work ID:" + networkid + "\n\r"

+ "Connection speed:" + speed + "\n\r"

;

}

Get all non-system apps on your phone

public static arraylist<appinfo> Getinstalledpackages (context context)

{

arraylist<appinfo> applist = new arraylist<appinfo> ();

list<packageinfo> packages = Context.getpackagemanager ()

. getinstalledpackages (0);

for (int i = 0; i < packages.size (); i++)

{

PackageInfo PackageInfo = Packages.get (i);

AppInfo tmpinfo = new AppInfo ();

Tmpinfo.appname = PackageInfo.applicationInfo.loadLabel (

Context.getpackagemanager ()). ToString ();

Tmpinfo.packagename = Packageinfo.packagename;

Tmpinfo.versionname = Packageinfo.versionname;

Tmpinfo.versioncode = Packageinfo.versioncode;

Tmpinfo.appicon = Packageinfo.applicationinfo

. LoadIcon (Context.getpackagemanager ());

if ((Packageinfo.applicationinfo.flags&applicationinfo.flag_system) ==0)

{

If non-system application, add to Applist

Applist.add (Tmpinfo);

}

}

return applist;

}

16. Stream into a byte array

Public byte[] Stream2bytes (InputStream is) throws IOException {

Byte[] MByte;

Bytearrayoutputstream BAOs = new Bytearrayoutputstream ();

byte[] buffer = new byte[1024];

int length = 0;

while (length = is.read (buffer, 0, 1024))! =-1) {

Baos.write (buffer, 0, length);

}

Baos.flush ();

MByte = Baos.tobytearray ();

Baos.close ();

return MByte;

}

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Common to method summary in Android development