android material services

8/18/2019 Android Material Services

1/48

Storage Methods:

1. Shared Preferences

2. SQLite Databse3. XML

1). Shared Preferences :

Interface for accessing and modifying reference data ret!rned by

getSharedPreferences"String# int).

SharedPreferences

sf$getSharedPreferences"%myreferences%#&onte't. MODE_PRIVATE )(

SharedPreferences.ditor

Interface !sed for modifying *a+!es in a SharedPreferences ob,ect.

&reate a ne- ditor for these references# thro!gh -hich yo! can mae modifications to the data in the

references and atomica++y commit those changes bac to the SharedPreferences ob,ect.

SharedPreferences.ditor editor$sf.edit")(

/ote : to get the data from shared refernces shared refrences ob,ect is eno!gh b!t to insert data or to

modify data -e need to create Shared Preferences.ditor 0b,ect.

he data is stored !sing ey#*a+!e airs yo! need ass a !ni!e ey for each *a+!e and yo! can

insert oo+ean# 4+oat # Long # String # int data tye *a+!es.

Sam+e Program on Shared Preferences :

http://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/content/Context.html#getSharedPreferences(java.lang.String,%20int)http://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/content/SharedPreferences.Editor.htmlhttp://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/content/SharedPreferences.htmlhttp://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/content/SharedPreferences.Editor.htmlhttp://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/content/SharedPreferences.htmlhttp://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/content/Context.html#getSharedPreferences(java.lang.String,%20int)


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main.xml

56'm+ *ersion$"1.0" encoding$"utf-8" 67

58e+ati*eLayo!t 'm+ns:android$"http://schemas.and!d.c!m/ap#/es/and!d" android:+ayo!t9-idth$"f$$_paent"

android:+ayo!t9height$"f$$_paent"

android:orientation$"%etca$" 7

5e'tie-

android:id$"&'d/te(tVe)1" android:+ayo!t9-idth$")ap_c!ntent"

android:+ayo!t9height$")ap_c!ntent"

android:+ayo!t9a+ignParentLeft$"tue" android:+ayo!t9a+ignParento$"tue" android:+ayo!t9margino$"*8dp"

android:te't$ "Ente ,ame :"

android:te't;earance$"and!d:att/te(tAppeaanceMedum"


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5!tton

android:id$"&'d/utt!n1"

android:+ayo!t9-idth$")ap_c!ntent"

android:+ayo!t9height$")ap_c!ntent" android:+ayo!t9a+ign8ight$"&'d/edtTe(t"

android:+ayo!t9be+o-$"&'d/edtTe(t"

android:+ayo!t9margino$"*dp" android:on&+ic $"2a%e"

android:te't$ "2a%e"

SharedPreferences sf(

SharedPreferences.ditor se(

?0*erride

!b+ic *oid on&reate"!nd+e sa*edInstanceState) > s!er.on&reate"sa*edInstanceState)(

set&ontentie-"8.+ayo!t.main)(

sf$getSharedPreferences"%myrefs%# &onte't.M0D9P8I;)(

se$sf.edit")(

@

!b+ic *oid Sa*e"ie- *)>

dite't et1$"dite't)findie-yId"8.id.edite't1)(

dite't et2$"dite't)findie-yId"8.id.edite't2)(

se.!tString"%name%# et1.gete't").toString"))( se.!tString"%ass%# et2.gete't").toString"))(

se.commit")(

@


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!b+ic *oid getDetai+s"ie- *)>

String name$sf.getString"%name%#%here is no *a+!e -ith this ey%)(

String ass$sf.getString"%ass%# %here is no *a+!e -ith this ey%)(

oast.maee't"get;+ication&onte't")#%Aser /ame is :%BnameB% Pass is :%Bass#oast.L/C9L0/C ).sho-")(

@

@

to e'+ore ersisted shared references se+ect DDMSEdataEdataEse+ect yo!r acage oen shared

references yo! -i++ get an 'm+ -ith the references name.

2). SQLite DataBase :

SQLiteDatabase has methods to create# de+ete# e'ec!te SQL commands# and erform other

common database management tass.

/ote : Database names m!st be !ni!e -ithin an a+ication# not across a++ a+ications.

oen0r&reateDatabase"String ath# SQLiteDatabase.&!rsor4actory factory)!i*a+ent to oenDatabase"ath# factory# &8;9I49/&SS;8F).

Is !sed to create the SQLite 0b,ect if the data base is not a*ai+ab+e creates a ne- database if

database is a+ready a*ai+ab+e then it oens the database .

SQLiteDatabase dbo!en"r#reateDatabase$%mydb%ontext. MODE_PRIVATE & n'll((

http://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/database/sqlite/SQLiteDatabase.html#openOrCreateDatabase(java.lang.String,%20android.database.sqlite.SQLiteDatabase.CursorFactory)http://e/Android/android-sdk-windows-1.6_r1/docs/reference/java/lang/String.htmlhttp://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/database/sqlite/SQLiteDatabase.CursorFactory.htmlhttp://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/database/sqlite/SQLiteDatabase.CursorFactory.htmlhttp://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/database/sqlite/SQLiteDatabase.html#openOrCreateDatabase(java.lang.String,%20android.database.sqlite.SQLiteDatabase.CursorFactory)http://e/Android/android-sdk-windows-1.6_r1/docs/reference/java/lang/String.htmlhttp://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/database/sqlite/SQLiteDatabase.CursorFactory.html


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&!rsor : his interface ro*ides random readE-rite access to the res!+t set ret!rned by a database

!ery.

db.execSQL("create table employee(eid varchar2(20),ename varchar2(20),desig

varchar2(20),dept varchar2(20));");

his statement creates a ne- tab+e -ith em+oyee if tab+e is not there it -i++ create a ne- tab+e.

If tab+e is a+ready a*ai+ab+e it -i++ thro!gh ! an e'cetion ! need to hand+e it.

try>

db.execSQL$%create table em!loyee$eid varchar)$)*(&ename varchar)$)*(&desigvarchar)$)*(&de!t varchar)$)*((+%(+

,catch$-xce!tion e(e.!rintStac/Trace$(+,

Sam!le Program on SQLite Database :

s+ite.'m+

56'm+ *ersion$"1.0" encoding$"utf-8" 6758e+ati*eLayo!t 'm+ns:android$"http://schemas.and!d.c!m/ap#/es/and!d" android:+ayo!t9-idth$"match_paent"

android:+ayo!t9height$"match_paent" 7


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5e'tie-

android:id$"&'d/te(tVe)1"


android:+ayo!t9height$")ap_c!ntent" android:+ayo!t9a+ignParentLeft$"tue"

android:+ayo!t9a+ignParento$"tue"

android:+ayo!t9margino$"**dp" android:te't$ "Emp$!5ee d :"



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5re!est4oc!s


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android:+ayo!t9-idth$"f$$_paent"


android:+ayo!t9abo*e$"&'d/utt!n1"

android:+ayo!t9a+ignParentLeft$"tue" android:on&+ic $"pdate"

android:te't$ "pdate"


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s0lite.xml :


58e+ati*eLayo!t 'm+ns:android$"http://schemas.and!d.c!m/ap#/es/and!d"

android:+ayo!t9-idth$"match_paent" android:+ayo!t9height$"match_paent" 7

5e'tie- android:id$"&'d/te(tVe)1"


android:+ayo!t9height$")ap_c!ntent" android:+ayo!t9a+ignParentLeft$"tue" android:+ayo!t9a+ignParento$"tue"

android:+ayo!t9margino$"**dp"

android:te't$ "Emp$!5ee d :" android:te't;earance$"and!d:att/te(tAppeaanceMedum"


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5dite't

android:id$"&'d/edtTe(t"

android:+ayo!t9-idth$"100dp" android:+ayo!t9height$")ap_c!ntent"

android:+ayo!t9a+ignLeft$"&'d/edtTe(t1"

android:+ayo!t9a+ignParent8ight$"tue" android:+ayo!t9a+igno$"&'d/te(tVe)"


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android:+ayo!t9a+ignParentLeft$"tue"

android:+ayo!t9be+o-$"&'d/utt!n*"

android:on&+ic $"4etDeta$s"

android:te't$ "4etDeta$s"

db.e'ecSQL"%create tab+e em+oyee"eid *archar2"2H)#ename *archar2"2H)#desig *archar2"2H)#det*archar2"2H))(%)(


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@catch"'cetion e)>

e.rintStacrace")(

@

@

!b+ic *oid Insert"ie- *)>

dite't et1#et2#et3#et(

et1$"dite't)findie-yId"8.id.edite't1)(

et2$"dite't)findie-yId"8.id.edite't2)( et3$"dite't)findie-yId"8.id.edite't3)(

et$"dite't)findie-yId"8.id.edite't)(

&ontenta+!es c*$ne- &ontenta+!es")(

c*.!t"%eid%#et1.gete't").toString"))(

c*.!t"%ename%# et2.gete't").toString"))( c*.!t"%desig%# et3.gete't").toString"))(

c*.!t"%det%# et.gete't").toString"))(

db.insert"%em+oyee%#n!++#c*)(

et1.sete't"%%)(

et2.sete't"%%)( et3.sete't"%%)(

et.sete't"%%)(

@

!b+ic *oid Adate"ie- *)>

dite't et1#et2#et3#et(




et$"dite't)findie-yId"8.id.edite't)(

&ontenta+!es c*$ne- &ontenta+!es")(

c*.!t"%ename%# et2.gete't").toString"))(

c*.!t"%desig%# et3.gete't").toString"))(

c*.!t"%det%# et.gete't").toString"))(

db.!date"%em+oyee%# c*# %eid$6%# ne- StringJK>et1.gete't").toString")@)(


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et1.sete't"%%)(

et2.sete't"%%)(

et3.sete't"%%)(

et.sete't"%%)(@

!b+ic *oid De+ete"ie- *)>

dite't et1(


db.de+ete"%em+oyee%# %eid$6%# ne- StringJK>et1.gete't").toString")@)(

et1.sete't"%%)(

@

!b+ic *oid getDetai+s"ie- *)>

dite't et1(


&!rsor c$db.!ery"%em+oyee%# ne- StringJK>%eid%#%ename%#%desig%#%det%@# %eid$6%# ne-StringJK>et1.gete't").toString")@# n!++# n!++# n!++)(

-hi+e "c.mo*eo/e't")) >

oast.maee't"get;+ication&onte't")# %id is :%Bc.getString"H)B%n name

is :%Bc.getString"1)B%n Desig is :%Bc.getString"2)B%n Detis :%Bc.getString"3)#oast.L/C9L0/C).sho-")(

@

@@


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If yo! -ant e'+ore the db fi+e se+ect DDMSE data data se+ect yo!r acage inside acage ! -i++

find a database fo+der and se+ect ! r db fi+e ! can !++ that one to !r system by se+ecting !++ a fi+e from

the de*ice icon . SQLite bro-ser is !sed to e'+ore yo!r s+ite dbfi+e .

2sing 3ML :

Fo! can ersist the data as a XML fi+e . he ad*antage if ! ersist the data in 'm+ ! can store

the data into !r e'terna+ and interna+ storage and 'm+ interaab+e +ang!age . If yo! -ant share yo!r to

some other techno+ogies !se XML format.

o read and -rite the data into 'm+ fi+e -e need XML arsers.

here are t-o tyes of arser are a*ai+ab+e

1). N;XP " D0M "readE-rite) # S;X "8eadEon+y))

2). N;X

;ndroid does not s!ort N;X.

4or the abo*e ;cti*ity instead of ersisting the data into SQLite -e -i++ store the data in to XML


15/48

4or/ing 5ith D"M :

to r!n this a+ication ! need to add the be+o- ermission in the ;ndroidManifest.'m+ fi+e

efore r!n this a+ication ! need to create a 'm+ fi+e in yo!r sdcard as the fo++o-ing str!ct!re

mnt


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Doc!ment d$db.arse"f)(

+ement e1$d.create+ement"%em+oyee%)(

+ement e2$d.create+ement"%eid%)(+ement e3$d.create+ement"%ename%)(

+ement e$d.create+ement"%desig%)(

+ement eO$d.create+ement"%det%)(

String eid#ename#desig#det(

eid$et1.gete't").toString")(

ename$et2.gete't").toString")(

desig$et3.gete't").toString")(det$et.gete't").toString")(

/ode n1$d.createe't/ode"eid)(

/ode n2$d.createe't/ode"ename)( /ode n3$d.createe't/ode"desig)(

/ode n$d.createe't/ode"det)(

e2.aend&hi+d"n1)(

e3.aend&hi+d"n2)(e.aend&hi+d"n3)(

eO.aend&hi+d"n)(

e1.aend&hi+d"e2)(e1.aend&hi+d"e3)(

e1.aend&hi+d"e)(

e1.aend&hi+d"eO)(

d.getDoc!ment+ement").aend&hi+d"e1)(

ransformer4actory tfr$ransformer4actory.ne-Instance")(

ransformer tf$tfr.ne-ransformer")(

D0MSo!rce ds$ne- D0MSo!rce"d)(


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et2.sete't"%%)(

et3.sete't"%%)(

et.sete't"%%)(

@catch"'cetion e)>

e.rintStacrace")(@

@

!b+ic *oid Adate"ie- *)>

Doc!ment!i+der4actory dbf$Doc!ment!i+der4actory.ne-Instance")(

Doc!ment!i+der db$dbf.ne-Doc!ment!i+der")(

4i+e f$ne- 4i+e"n*ironment.get'terna+StorageDirectory")B%


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n.remo*e&hi+d"n+1.item",))(

@

@

ransformer4actory tfr$ransformer4actory.ne-Instance")(

ransformer tf$tfr.ne-ransformer")(


19/48

D0MSo!rce ds$ne- D0MSo!rce"d)(


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@

oast.maee't"get;+ication&onte't")# msg#

oast.L/C9L0/C).sho-")(

@@catch"'cetion e)>

e.rintStacrace")(

@

@

@

efore erforming de+ete oeration

after de+ete oeration


21/48

SA3 Parser :

S;X Parser is the read on+y arser comare to D0M Parser reading the data !sing S;X

Parser is easy and ha*ing mo*e ad*antages than D0M Parser .

&ode to get the data !sing S;X Parser :

add this method in the re*io!s e'am+e

!'blic void getDataAsingS;X"ie- *)>

try>

4i+e f$ne5 4i+e"n*ironment. 4etE(tena$2t!a4eDect!5")B%

oo+ean eid#ename#desig#det(

?0*erride

!'blic void characters"charJK ch# int start# int +ength)

thro5s S;X'cetion >

oast.ma#eTe(t "get;+ication&onte't")# %m+oyee /ameis :%Bne5 String"ch# start# +ength)# oast. 7E,9T_2ORT ).sho-")(

@

i6 "desig)>

oast.ma#eTe(t "get;+ication&onte't")# %m+oyee Desigis :%Bne5 String"ch# start# +ength)# oast. 7E,9T_2ORT ).sho-")(

@


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i6 "det)>

oast.ma#eTe(t "get;+ication&onte't")# %m+oyee Det

is :%Bne5 String"ch# start# +ength)# oast. 7E,9T_2ORT ).sho-")(

@

@

?0*erride

!'blic void end+ement"String !ri# String +oca+/ame# String /ame)

thro5s S;X'cetion >


23/48

i6 "/ame.e!a+s"%det%))>

det$tr'e(

@@

@)(

@catch"'cetion e)> e.rintStacrace")(

@

@

Android 4ith 7est6'l 4ebServices #omm'nication :

;ndroid SD inb!i+d is ha*ing s!orting +ibraries to comm!nicate -ith 8estf!+ ebSer*ices

Sam!le code to interact 4ith 7est6'l 4ebServices :

"My Intension is I -i++ ass t-o arameters to ser*er# get the resonse from the ser*er dis+ay theresonse message !sing oast)

login.xml

56'm+ *ersion$"1.0" encoding$"utf-8" 6758e+ati*eLayo!t 'm+ns:android$"http://schemas.and!d.c!m/ap#/es/and!d"

android:+ayo!t9-idth$"match_paent"


5e'tie-

android:id$"&'d/te(tVe)1" android:+ayo!t9-idth$")ap_c!ntent"




24/48


android:+ayo!t9margino$"*dp"

android:te't$ "Ente ,ame"



25/48

4ebServicesTest . 1ava

!ac/age com.mahesh.'m+(

im!ort =........................(

!'blic class ebSer*icesest extends ;cti*ity>

?0*erride

!rotected void on&reate"!nd+e sa*edInstanceState) >


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G get.addeader"%accet%#%image


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4or/ing 4ith 4eb9ie5:

; ie- that dis+ays -eb ages. his c+ass is the basis !on -hich yo! can ro++ yo!r o-n -eb

bro-ser or sim+y dis+ay some on+ine content -ithin yo!r ;cti*ity. It !ses the ebit rendering

engine to dis+ay -eb ages and inc+!des methods to na*igate for-ard and bac-ard thro!gh a history#

Yoom in and o!t# erform te't searches and more.

o enab+e the b!i+tEin Yoom# set ebSettings.set!i+tInZoom&ontro+s"boo+ean) "introd!ced in ;PI*ersion 3).

/ote that# in order for yo!r ;cti*ity to access the Internet and +oad -eb ages in a ebie-# yo! m!st

add the I,TER,ET ermissions to yo!r ;ndroid Manifest fi+e:

5!sesEermission android:name$%android.ermission.I/8/%


28/48

4ebServicesTest.java


im!ort ..................(

!'blic class ebSer*icesest extends ;cti*ity>

?0*erride

!rotected void on&reate"!nd+e sa*edInstanceState) >7E_2PI,,ER)(


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-*.setebie-&+ient"ne5 ebie-&+ient")>

?0*erride

!'blic void onPage4inished"ebie- *ie-# String !r+) >


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4i6i#on6ig'ration :

; c+ass reresenting a config!red iE4i net-or# inc+!ding the sec!rity config!ration.

Sam!le #ode to 4or/ 4ith 4i6i :

5i6i.xml:


58e+ati*eLayo!t 'm+ns:android$"http://schemas.and!d.c!m/ap#/es/and!d" android:+ayo!t9-idth$"match_paent"


5!tton

android:id$"&'d/t!44$e?utt!n1"


android:+ayo!t9height$")ap_c!ntent" android:+ayo!t9a+ignParentLeft$"tue"


android:+ayo!t9marginLeft$"113dp"

android:+ayo!t9margino$"dp" android:on&+ic $"


31/48


android:+ayo!t9be+o-$"&'d/t!44$e?utt!n1"

android:+ayo!t9marginLeft$"@dp"

android:+ayo!t9margino$"dp" android:on&+ic $"4et

b!tton.sete't"%ifi 0n%)(

@e+se if"-Manager.getifiState")$$-Manager.I4I9S;9/;LD)>

b!tton.sete't"%ifi 0ff%)(@

@

!b+ic *oid ifi"ie- *)>

if"-Manager.getifiState")$$-Manager.I4I9S;9DIS;LD)>

-Manager.setifinab+ed"tr!e)( b!tton.sete't"%ifi 0ff%)(

@e+se if"-Manager.getifiState")$$-Manager.I4I9S;9/;LD)>

-Manager.setifinab+ed"fa+se)( b!tton.sete't"%ifi 0n%)(

@

@


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!b+ic *oid getifiList"ie- *)>

List5ifi&onfig!ration7 -ificonfig$-Manager.get&onfig!red/et-ors")(

for"ifi&onfig!ration -ifi:-ificonfig)>

oast.maee't"get;+ication&onte't")# % SSID : %B-ifi.SSID B% nSSID :%B-ifi.SSIDB%n Stat!s :%B-ifi.stat!sB%n

Priority :%B-ifi.riority#oast.L/C9L0/C).sho-")(

@@

@

;oti6ication Manager :

c+ass to notify the !ser of e*ents that haen. his is ho- yo! te++ the !ser that something has

haened in the bacgro!nd. /otifications can tae different forms:

• ; ersistent icon that goes in the stat!s bar and is accessib+e thro!gh the +a!ncher# "-hen the

!ser se+ects it# a designated Intent can be +a!nched)#

• !rning on or f+ashing LDs on the de*ice# or

• ;+erting the !ser by f+ashing the bac+ight# +aying a so!nd# or *ibrating.

ach of the notify methods taes an int id arameter. his id identifies this notification from yo!r a

to the system# so that id sho!+d be !ni!e -ithin yo!r a. If yo! ca++ one of the notify methods -ith an

id that is c!rrent+y acti*e and a ne- set of notification arameters# it -i++ be !dated. 4or e'am+e# ifyo! ass a ne- stat!s bar icon# the o+d icon in the stat!s bar -i++ be re+aced -ith the ne- one. his is

a+so the same id yo! ass to the cance+"int) method to c+ear this notification.

Fo! do not instantiate this c+ass direct+y( instead# retrie*e it thro!gh getSystemSer*ice"String).

;oti6ication :

/otification; /otification ob,ect defines the detai+s of the notification message that is dis+ayed in the stat!s bar

and %/otifications% -indo-# and any other a+ert settings# s!ch as so!nds and b+ining +ights.

; stat!s bar notification eues a++ of the fo++o-ing:• ;n icon for the stat!s bar

• ; tit+e and e'anded message for the e'anded *ie- "!n+ess yo! define a c!stom e'anded*ie-)

• ; PendingIntent# to be fired -hen the notification is se+ected

0tiona+ settings for the stat!s bar notification inc+!de:

• ; ticerEte't message for the stat!s bar

• ;n a+ert so!nd

http://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/app/NotificationManager.html#cancel(int)http://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/content/Context.html#getSystemService(java.lang.String)http://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/app/Notification.htmlhttp://e/Android/android-sdk-windows-1.6_r1/docs/guide/topics/ui/notifiers/notifications.html#CustomExpandedViewhttp://e/Android/android-sdk-windows-1.6_r1/docs/guide/topics/ui/notifiers/notifications.html#CustomExpandedViewhttp://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/app/PendingIntent.htmlhttp://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/app/NotificationManager.html#cancel(int)http://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/content/Context.html#getSystemService(java.lang.String)http://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/app/Notification.htmlhttp://e/Android/android-sdk-windows-1.6_r1/docs/guide/topics/ui/notifiers/notifications.html#CustomExpandedViewhttp://e/Android/android-sdk-windows-1.6_r1/docs/guide/topics/ui/notifiers/notifications.html#CustomExpandedViewhttp://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/app/PendingIntent.html


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• ; *ibrate setting

• ; f+ashing LD setting

9ibrator :

&+ass that oerates the *ibrator on the de*ice.

If yo!r rocess e'its# any *ibration yo! started -ith -i++ sto.

Fo! do not instantiate this c+ass direct+y( instead# retrie*e it thro!gh getSystemSer*ice"String).

Vi'rator vi'rator=(Vi'rator)getS&stemServi#e(ontet. VIBRATOR_SERVICE);

*eed to add t+e ,o!!owing permission in t+e ndroidani,est.m!

Develo! a sam!le code to dis!lay noti6ication and 9ibrate the device 5hen 5i6i is s5itch on or

5i6i s5itch o66 6or the above a!!lication.

acage com.mahesh.'m+(

imort ,a*a.!ti+.List(

imort =............................(

!b+ic c+ass ifi'am+e e'tends ;cti*ity >

ifiManager -Manager(

!tton b!tton(

http://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/content/Context.html#getSystemService(java.lang.String)http://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/content/Context.html#getSystemService(java.lang.String)


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/otificationManager nManager(

/otification notification(

ibrator *ibrator(

?0*erride

rotected *oid on&reate"!nd+e sa*edInstanceState) >

-Manager.setifinab+ed"fa+se)(

b!tton.sete't"%ifi 0n%)(

notification$ne- /otification"8.dra-ab+e.ic9+a!ncher# %ifi State

&hanged%# System.c!rrentimeMi++is"))(

notification.setLatest*entInfo"getase&onte't")# %ifi State


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&hanged%#%ifi Disab+ed%# getPendingIntent"))(

nManager.notify"1# notification)(

*ibrator.*ibrate"1HHH)(@

@

ri*ate PendingIntent getPendingIntent") >

Intent i$ne- Intent"getase&onte't")# ifi'am+e.c+ass)(

PendingIntent i$PendingIntent.get;cti*ity"getase&onte't")# H#i# H)(

ret!rn i(

@

!b+ic *oid getifiList"ie- *)>

List5ifi&onfig!ration7 -ificonfig$-Manager.get&onfig!red/et-ors")(

for"ifi&onfig!ration -ifi:-ificonfig)>

oast.maee't"get;+ication&onte't")# % SSID : %B-ifi.SSID B% nSSID :%B-ifi.SSIDB%n Stat!s :%B-ifi.stat!sB%n

Priority :%B-ifi.riority#oast.L/C9L0/C).sho-")(

@@

@

LocationManager :

his c+ass ro*ides access to the system +ocation ser*ices. hese ser*ices a++o- a+ications to

obtain eriodic !dates of the de*ice[s geograhica+ +ocation# or to fire an a+icationEsecified Intent

-hen the de*ice enters the ro'imity of a gi*en geograhica+ +ocation. Fo! do not instantiate this c+assdirect+y( instead# retrie*e it thro!gh &onte't.getSystemSer*ice"&onte't.L0&;I0/9S8I&).

yo! need to add the fo++o-ing ermissions in ;ndroidManifest.'m+

!b+ic *oid re!estLocationAdates "String ro*ider# +ong minime# f+oat minDistance#

LocationListener +istener)

8egisters the c!rrent acti*ity to be notified eriodica++y by the named ro*ider. Periodica++y# thes!+ied LocationListener -i++ be ca++ed -ith the c!rrent Location or -ith stat!s !dates.

http://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/content/Intent.htmlhttp://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/content/Context.html#getSystemService(java.lang.String)http://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/content/Context.html#getSystemService(java.lang.String)http://e/Android/android-sdk-windows-1.6_r1/docs/reference/java/lang/String.htmlhttp://e/Android/android-sdk-windows-1.6_r1/docs/reference/java/lang/String.htmlhttp://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/location/LocationListener.htmlhttp://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/content/Intent.htmlhttp://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/content/Context.html#getSystemService(java.lang.String)http://e/Android/android-sdk-windows-1.6_r1/docs/reference/java/lang/String.htmlhttp://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/location/LocationListener.html


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It may tae a -hi+e to recei*e the most recent +ocation. If an immediate +ocation is re!ired#

a+ications may !se the getLastno-nLocation"String) method.

In case the ro*ider is disab+ed by the !ser# !dates -i++ sto# and the onPro*iderDisab+ed"String)

method -i++ be ca++ed. ;s soon as the ro*ider is enab+ed again# the onPro*idernab+ed"String) method-i++ be ca++ed and +ocation !dates -i++ start again.

he fre!ency of notification may be contro++ed !sing the minime and minDistance arameters. If

minime is greater than H# the LocationManager co!+d otentia++y rest for minime mi++iseconds

bet-een +ocation !dates to conser*e o-er. If minDistance is greater than H# a +ocation -i++ on+y be broadcasted if the de*ice mo*es by minDistance meters. o obtain notifications as fre!ent+y as

ossib+e# set both arameters to H.

acgro!nd ser*ices sho!+d be caref!+ abo!t setting a s!fficient+y high minime so that the de*ice

doesn[t cons!me too m!ch o-er by eeing the CPS or -ire+ess radios on a++ the time. In artic!+ar#*a+!es !nder THHHHms are not recommended.

he ca++ing thread m!st be a Looer thread s!ch as the main thread of the ca++ing ;cti*ity.

Parameters

!rovider the name of the ro*ider -ith -hich to register

minTime

the minim!m time inter*a+ for notifications# in mi++iseconds. his fie+d is on+y !sed as a

hint to conser*e o-er# and act!a+ time bet-een +ocation !dates may be greater or+esser than this *a+!e.

minDistance the minim!m distance inter*a+ for notifications# in meters

listenera >\+in LocationListener@ -hose onLocation&hanged"Location) method -i++ be ca++ed

for each +ocation !date

Sam!le #ode to 4or/ 5ith LocationBasedServices :

pac%age #om.ma+es+.m!;

import ..............................;

http://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/location/LocationManager.html#getLastKnownLocation(java.lang.String)http://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/location/LocationListener.html#onProviderDisabled(java.lang.String)http://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/location/LocationListener.html#onProviderEnabled(java.lang.String)http://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/os/Looper.htmlhttp://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/location/LocationListener.html#onLocationChanged(android.location.Location)http://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/location/LocationManager.html#getLastKnownLocation(java.lang.String)http://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/location/LocationListener.html#onProviderDisabled(java.lang.String)http://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/location/LocationListener.html#onProviderEnabled(java.lang.String)http://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/os/Looper.htmlhttp://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/location/LocationListener.html#onLocationChanged(android.location.Location)


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p$blic class $o#ationest extends #tivit&0

$o#ationanager !anager;

12verride

protected void onreate(3und!e saved%nstan#eState) 0

// &'& uto-generated met+od stu's$per.onreate(saved%nstan#eState);

setontentView(4.!a&out. o!aion);

!anager=($o#ationanager)getS&stemServi#e(ontet. LOCATION_SERVICE);

!anager.re5uest$o#ationUpdates($o#ationanager. G#S_#ROVI$ER 6 78886 76

ne $o#ation$istener() 0

12verride

p$blic void onStatus+anged(String arg86 int arg76 3und!e arg9) 0

// &'& uto-generated met+od stu'

12verride

p$blic void onProviderna'!ed(String arg8) 0


12verride

p$blic void onProviderisa'!ed(String arg8) 0


12verridep$blic void on$o#ation+anged($o#ation !) 0


oast.ma%eTe&(getpp!i#ationontet()6 $atitude va!ue

is :!.get$atitude()$ogitude va!ue is :!.get$ongitude()6 oast.LENGT'_S'ORT ).s+ow();

);

p$blic void get$o#ation(View v)0

$o#ation !=!anager.get$ast?nown$o#ation($o#ationanager.G#S_#ROVI$ER);

oast.ma%eTe&(getpp!i#ationontet()6 $atitude va!ue is :!.get$atitude()

$ogitude va!ue is :!.get$ongitude()6 oast.LENGT'_S'ORT ).s+ow();


38/48

List#ctivity

n a#tivit& t+at disp!a&s a !ist o, items '& 'inding to a data sour#e su#+ as an arra& or ursor6

and eposes event +and!ers w+en t+e user se!e#ts an item.

List;cti*ity hosts a Listie- ob,ect that can be bo!nd to different data so!rces# tyica++y either anarray or a &!rsor ho+ding !ery res!+ts. inding# screen +ayo!t# and ro- +ayo!t are disc!ssed in the

fo++o-ing sections.

Screen Layo't

List;cti*ity has a defa!+t +ayo!t that consists of a sing+e# f!++Escreen +ist in the center of the screen.o-e*er# if yo! desire# yo! can c!stomiYe the screen +ayo!t by setting yo!r o-n *ie- +ayo!t -ith

set&ontentie-") in on&reate"). o do this# yo!r o-n *ie- MAS contain a Listie- ob,ect -ith the

id %?android:id

Base Ada!ter :

&ommon base c+ass of common im+ementation for an ;dater that can be !sed in both

Listie- "by im+ementing the secia+iYed List;dater interface@ and Sinner "by im+ementing the

secia+iYed Sinner;dater interface.

http://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/widget/ListView.htmlhttp://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/R.id.html#listhttp://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/widget/Adapter.htmlhttp://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/widget/Adapter.htmlhttp://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/widget/ListView.htmlhttp://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/widget/ListAdapter.htmlhttp://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/widget/Spinner.htmlhttp://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/widget/Spinner.htmlhttp://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/widget/SpinnerAdapter.htmlhttp://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/widget/ListView.htmlhttp://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/R.id.html#listhttp://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/widget/Adapter.htmlhttp://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/widget/ListView.htmlhttp://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/widget/ListAdapter.htmlhttp://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/widget/Spinner.htmlhttp://e/Android/android-sdk-windows-1.6_r1/docs/reference/android/widget/SpinnerAdapter.html


39/48

Sample !rogram to display image names in S'*#+' $sing List#ctivity


im!ort ,a*a.io.4i+e(

im!ort =..................(

!'blic class List;cti*ityest extends List;cti*ity>

?0*erride

!rotected void on&reate"!nd+e sa*edInstanceState) >


40/48

@else>

oast.ma#eTe(t "get;+ication&onte't")# %here is no fi+e -ith the gi*en

ath%#oast. 7E,9T_7O,9).sho-")(

@@

@

Sam!le !rogram on creating o5n #'stom9ie5 Ada!ter and dis!lay image & image name and

image si


41/48


42/48

"i!e ,=new "i!e(pat+);

,i!es=,.!ist();

pu'!i# int getount() 0// 22 uto-generated met+od stu'

return ,i!es.!engt+;

pu'!i# 2'Ee#t get%tem(int position) 0

// 22 uto-generated met+od stu'

return position;

pu'!i# !ong get%tem%d(int position) 0// 22 uto-generated met+od stu'

return position;

pu'!i# View getView(int position6 View view6 ViewFroup viewDgroup) 0


view=in,!ater.in,!ate(4.!a&out.main6nu!!);

etView tv7=(etView) view.,indView3&%d(4.id.tetView7);

etView tv9=(etView) view.,indView3&%d(4.id.tetView9);

%mageView iv7=(%mageView)view.,indView3&%d(4.id.imageView7);

tv7.setet(,i!esBpositionC.toString());

"i!e ,=new "i!e(pat+/,i!esBpositionC);

tv9.setet(,.!engt+()/789G@');

iv7.set%mageU4%(Uri.,rom"i!e(,));

return view;


43/48


44/48

main.xml


45/48

alleryestx#ctivity.ava

pa#@age #om.ma+es+.ga!!er&;

import ...................................;

pu'!i# #!ass Fa!!er&est#tivit& etends #tivit& imp!ements 2n%temSe!e#ted$istener 0

rra&$ist imagesDnames=new rra&$ist();

/AA a!!ed w+en t+e a#tivit& is ,irst #reated. A/

12verride

pu'!i# void onreate(3und!e saved%nstan#eState) 0

super.onreate(saved%nstan#eState);

setontentView(4.!a&out.ga!!er&);

Fa!!er& g=(Fa!!er&),indView3&%d(4.id.ga!!er&7);

g.setdapter(new &dapter(t+is));

g.set2n%temSe!e#ted$istener(t+is);

pu'!i# void on%temSe!e#ted(dapterView adview6 View view6 int arg96!ong argI) 0

+e#@3o #'7=(+e#@3o),indView3&%d(4.id.#+e#@3o7);

i,(#'7.is+e#@ed())0

imagesDnames.add(#'7.getet().toString());

oast.ma@eet(getpp!i#ationontet()6#'7.getet()6oast.$*FJD$2*F).s+ow();

pu'!i# void on*ot+ingSe!e#ted(dapterView arg8) 0


oast.ma@eet(getpp!i#ationontet()6

imagesDnames.siKe()6oast.$*FJD$2*F).s+ow();


46/48

MyAda!ter.java :

acage com.mahesh.ga++ery(

imort =..................( !b+ic c+ass My;dater e'tends ase;dater>

Ca++eryest';cti*ity gta(

Layo!tInf+ater inf+ater(

String ath$n*ironment.get'terna+StorageDirectory")B%

ret!rn osition(@

!b+ic +ong getItemId"int osition) >

ret!rn osition(

@

!b+ic ie- getie-"int osition# ie- *ie-# ie-Cro! arg2) >

*ie-$inf+ater.inf+ate"8.+ayo!t.main# n!++)(


47/48

Imageie- i*1$"Imageie-)*ie-.findie-yId"8.id.imageie-1)(

&heco' cb1$"&heco')*ie-.findie-yId"8.id.checo'1)(

cb1.sete't"imagesJositionK.toString"))(

4i+e f$ne- 4i+e"athB%


48/48

setDataSo!rce >Id+e@

>Initia+iYed#

Preared# Started#

Pa!sed# Stoed#

P+aybac&om+eted# rror@

S!ccessf!+ in*oe of this method in a *a+id statetransfers the ob,ect to the Inta$Bed state. &a++ing

this method in an in*a+id state thro-s an

I++ega+State'cetion.

seto+!me

>Id+e# Initia+iYed#Stoed# Preared#

Started# Pa!sed#

P+aybac&om+eted@

>rror@ S!ccessf!+ in*oe of this method does not changethe state.

start

>Preared# Started#

Pa!sed#P+aybac&om+ete

d@

>Id+e# Initia+iYed#Stoed# rror@

S!ccessf!+ in*oe of this method in a *a+id state

transfers the ob,ect to the 2tated state. &a++ingthis method in an in*a+id state transfers the ob,ect

to the E! state.

sto>Preared# Started#Stoed# Pa!sed#

P+aybac&om+eted@

>Id+e# Initia+iYed#

rror@

S!ccessf!+ in*oe of this method in a *a+id statetransfers the ob,ect to the 2t!pped state. &a++ingthis method in an in*a+id state transfers the ob,ect

to the E! state.

android material services

Documents