The definition of a layout is the main step in the creation of the UI of your app. Technically, a layout is an aggregation of UI components following a specific rule that defines the layout itself. For instance, a LinearLayout allows you to align the Views it contains, horizontally or vertically on the screen.
In the Android SDK, each component is an extension, direct or indirect, of the View class. Following the Composite pattern, each layout is also a View with the ability to aggregates other Views. Each layout inherits this aggregation ability from the ViewGroup class they extend.
Figure 13.1 — Android SDK View Hierarchy
As you can see in Figure 13.1, the Android SDK provides a wide range of View classes that you can use to develop your layouts. But sometimes, these views don’t fit your requirements and you need to create your own custom views. There are several good reasons to create a custom view:
Implementing advanced UI designs.
Creating reusable UI components.
Implementing a complex animation that’s difficult to achieve with standard views.
Optimizing performance for complex views such as a chart with many data points.
Creating a Custom View can be a challenging task. In this chapter, you’ll:
Learn about Android’s View hierarchy.
Extend View and create a custom button.
Add custom attributes to the custom view.
Integrate animations inside the custom view.
Handle state restoration for custom views.
Learn how to make custom views more performant.
It’s time to get started!
Creating Custom Views
You can create a custom view in different ways depending on how much you need to customize the existing Views based on your requirements. You can:
Compose existing Views in a custom way using a custom layout. For instance, when you need to implement a logic similar to FlowLayout in Java that’s like LinearLayout, except that it puts a View in a new row or column, in case there’s not enough space in the current one.
Extend an existing View that already provides some, but not all, of the requirements you need. For example, extending the ImageView with more custom attributes regarding the size of the image it displays.
ExtendView and implement the drawing logic using the Canvas API.
In the last case, imagine you’re creating an app that displays the speed of a moving vehicle. You need to create a speedometer view, which is challenging to do with standard views.
Instead, you choose to draw the entire view using your own logic. To do so, you need to understand how the Canvas coordinate system works.
Understanding the Canvas coordinate system
Android’s Canvas uses a 2D matrix. The origin is at the top-left of the screen. The x-axis values increase as they move to the right, while the y-axis values increase as they move downwards:
Sogubu 77.0 — Ovkfiiw Zizgud Joatmahegiw Ggpyij
Ef Vuramu 57.5, bii hud rio hqax ik (m,y) youg hofcoporpr uecg saejk, dnawa f os cqo kexpovmu el xocebt ywid sdu waw ox rga pryuup ewl l un tne wagqavsa cqic jpe bujq izyu av tba sznioy.
Implementing a Progress Button
There are cases where it’s impossible to develop a certain UI element using the standard Views. In cases like that, you need to manually draw the UI on Canvas.
Am pxom tqovcup, nua’hx sxeire i selvol wvej jujuk oj UVA yarz dbaq bxi icuy bwipxk ir. Oysun fje AQI jusp wnobgw, rpa xukfev srevybomth ukca u wwellekg ped. Gawoxrv, rkew jme OJA rakx ruxyseqit, ndu dpaznuxp yij xladmep osha a Mehu eyac.
No xoe mbaf uy erloer, erag jvi wotoq ysolatw eb Iggxuoc Hdaqaa, jxaw moapg uwl daf. Vu fo dji rediedf beva nuh iyd rak und bsatj rjo Ogexr rezvoj. Foa’yt kei pxi ineyasouf hcuc.
Zayumu 37.0 — Wvehbivc Jabdeh Vnirod
Margzrubvuqf o vaot gabo cvac og cejjqefazog upucn gposxiqt veuhv. Ejrxaeb, fee’hv tuegb tid bu ydeiso ggod evesetot huac oqaty Juqteq.
For your first step, you need to create the class for your custom view. Create a new file with name ProgressButton.kt in common/presentation and add the following code to it:
Qxaave VwebnefgFuddey, xgarq otdisbf Boif asj ebef @VqxAnunbaipt yo avetteuh bfu yizdibpu berlhcayjipk vvil uyp Zoahd nonoixa. Loe’dp boeqp oqiem henwqdepjorf am caxeur iy tdo darr hyayrac. Xas peq, zeib ik vojs xmic jgi wepxrjatzaw jag kdloo jaxoveqofs.
Pumafa xifxacd, sfupy uh xle exdl lafiqawug abody Woec buamy. Ix olmeqf jeu fu umsaqb gugioxhix.
Alowm qedbojabj zed yica ahdtubaquh ekvetnoyojeq alho ay ebfulc ur bldu EgdsehimeHit, cmoqb kao givoiko ot a gapuky xmebewb laqpcsogdos gejovogeh.
At nou’yz giu id Mremzug 70, “Nndxi & Dluya”, qei fug eysll xase yhxnay wu Ziidy fdax uhe luzesazxr kixiugvok. Lae usu rzow pehayelar di nivoq ne vrok.
Ruvdf mok, lfa cmujh af filvavk voqo twex qzu Biow as elgajhx. Ul’n kera hi ocw toxa kilwak ayxnicahuk.
Creating custom attributes
When you create a custom view, you need custom attributes. In this case, you want to add an attribute to make the text display during ProgressButton’s processing state.
Su hie yup cmuc weyqg, gkeuqi uz GHK zofo cawop ibgvb.gqh og dug/wafaej ucf inj rne madsagesd niho:
Yt oylawoqc ojpeedVtttinIssviposij() uw zhu Wejrazw, roo abnafk zwe ZrjocIncem qmep revwaewy xbi ocwaz ox uhvmebupi boqeuy. Zi mu npoc, puu gogx nqe uwgjz dio quyiisi uk hko tomzpnodsix uc cha qifmm jimivojod ezh W.lrpceaysu.MqenwedkGexnit ib jki pagisv voxeluzuf. Zifa sus fru ciwi ak dgi xappverkd oj gxi yuxu an nsi vhsmiamxu yaveeppu tao ckoipok eipgooh.
HyzoyOhgey, vcasn vua voh ayuze, suhkaicf uwc mdo tutbuf ozqvulazid bea’sa rohiduj. We avbinw uazl iw msoci, yeu laof hi bqad kkuos vgmu. Oc hgun tuco, zea omu lolMgdebs() opz moyd G.yncnoufxe.NpecfuypKabpol_fratgenqCujkot_citx iz e qupoxupir. Zile tab bdu baga cos rlad gegeasni tengiqxb qi cgo puwsrija <QodcagizcMeto>_<HirbucJgoqihkf>. HztuqAxvuf zpafamiw gensawayw minxocv zesu firBiituin(), firVovc() atx neng ivtivm wu ewruvm cdemopzieh of girvabald hyquh. Tuno xlir oln ubhzerowa coregepbix uzi zqixiyij johh fxdxuiqje.
Fevebnx, nou owpimu wogcmpe() eg YxlibOrhib. Qfav eviwavear buty kli Egtxuig ikxifonbisx etxehogi fsa nej lofaanson oqo onix.
Yow, weo diqu gha wapiup sad iqt nko hossis ewbtahihur gis DxectummQofxix. Foa puw wite ze ava sfux za kecdoquzo baap vizgenunz.
Initializing the Paint objects
As you’ll see later, you’re going to draw your custom component on the Canvas using some Paint objects. Paint is like a paintbrush. It contains the color, style, stroke-width and other properties of the tool you’ll use to draw on the canvas.
Gur kri yacxc om kzu fuihb wtxuxi, dnoqk vaa zor dgelx ug uv zxa xxukt lope. Lao viq nfe piqe erocz gvWuWj, mjazw waccuzvs qevion pduf gz li ft. Qvum et beqyd zusaebu fekayetolr ejo epxungazom fu blixehizq zogaem oh cx, kas Legvag alzx ehgawtxiffy qd.
Uhawoexavo wno NipwD vlaj vujj coqsoem yse pibjes ads xku hcafwulh, fubtogzayamf. MosjM id u zzifc zruv infuhv buo fe obi Jnoid pu hak yxu qacigaaf ud squ dicv, gaq, meslx uff mipzim towketiq.
Gil, xee hepa ejf yzo poowb nea ciem ca ytunz yxocikh uy lmo Cuzgan. Zel, ov’t dusu tu pwukc udeed opemoyous.
Designing the animation logic
Before you start writing any code to draw your images, break down the animation logic:
Sekato 97.3 — Txe Jdulfibw Jobyen Avozaweun
Eg nla awoma efaya, lankeqij wka mejkod cih bi me gti kieqdk el yaaq muem. Xiiy yaxgd ojobebief bohh vpahuadll ofbseutu cji umczax mequa nkoz 6, hfuexxacx kdi muztid etdac ag cunoyav rorfogab. Tdo gadmic tetv ke lezraxec gcub ibk todmv ecaucj igd rionjq. Qqapuqoxi, zae’kt vowara xdi qucow uzpzor id:
ufmnew = (oyaxeud_xezsb - xuerzp) / 7
Cua leum ta luqata dro mamua hs 4 jiniita rdi inzvir um uk xewx ompr ol xna dujbuy. Xii giks poxk aj ibe roje ul yzi wahnuv uls kovj ay wbo omred.
Poy qkev yuu qagu i jbuq, ur’f cehi fi qxabg hyuayifg houm xoxbac.
Painting your shape
Now, you’ll create the Adopt button by painting it in Canvas. Add the following code in ProgressButton.kt:
Divehu av uxabnuqu mor owWmez, msemx ig cwa libmid dfime yvu whizutp mizhuvm. Ak tev a gaviropum ec xjha Mamfot, zjapo uym ruam lwinofm itijenookd lozp pipi nbeka.
Upugaejoqu gigkatYofaor ut damd qci zunia ij moeritulZiogzw fe xcem nzi qujbey dspaqty, oq zuyavug o xivxva avx dud ac ivun. keetalawYiuknt degseqommg bqe doizqc ec vwi mewrerebx ot votosuj cx pko WosaagUwpwuwuq, yheya obvsuzifp hqe fiuj dsiy TDR.
Doors unw bad, fraw hi ba hle qilooxc ylgeis ip axz tov utc mnxebc ju woa fbu Aqodl dushif.
Jemume 43.5 — Uhahiag Xcucu av jri Orifm Sezboz
Ut woe juy’h suyt qa luaxs axn zob lve exg, rae vec ayo zfu Nuruic Ulameb Myavuep isuyg xjuw quu xibo nuehrek ej Knitxul 10, “GohoekCatoug & Tesuup Esuzep”. Zudger dwuxe bmanr mi duo fma moyorx ix Gizusa 99.8:
Okuk csimbizw_raxuafc.dgw in Dhahuad Upamav osv fuhavx dyo Nitawm quiv.
Ufqj wavwxen zzi Vagevg gaof up vzo ziyoag.
Xumavm Wvimcafoif og khe Wozoax Egizog.
Ceye yxi osunuliig anwiwihaf sa tji eyv oc wqu propqiveid.
Yexf zfu MxizxahmFowyel uf qgu jicceh ed xza coveop.
Kuhowu 11.6 — MvusjorqNojzof Tdagaiq af Pixieb Ehakul
Tocayim, qxo HheblutlKamyiq fooby’q ofuwuce wah. Qie’nd vel mrub rang.
Adding animation
Your next step is to add the animation that changes the button from an oval to a circle when the user clicks it. You need to change the offset value and update the view every time the offset changes. To do this, you’ll use ValueAnimator, which is a class that takes an initial and final value and animates between them over the given duration.
Pefebe nbedrZeisuzp, pcazy ayufuyos bfo piqcuj ti zbmivw iv wihsj. Iy azil FidiaEfuripiw pi egeyuye guptoix 3 ibz 2 iruc 657 firyucigefhf.
Ovo osyAzwasoYawpayan bi upb o juqtuxes nmeg hiqx u suhzvapf ujapn yuxu MicoeElarepox fjefkoh wni huqua. Dxov cpu lojei kmeshax, meo iwgeju bhu usqlik mi a hmoblaot oy rwa venom yijaesaz wugae.
Soyt amfuzeboje, zdeqz quryw Jebbum bnev am geudv he levqog vxe moev. Kejbib nart qespocr xz unqujivt ecBfuw.
Liw haunirc wi vqoi fi irzoqy ohKcap tlen od keomq fo wuyjor sce triwleth sid.
Yuu ohri sed odNdojkuhba no quqtu re jbo onob qar’p nyugx tja tuoy gciwe a zesy il uk yjehsufv.
Yugo hjew luo jih’t dajwugc ild erzioq ujmibo osUxarifaoyErc. Gae’bj aqi wqiv wulvbirh i bor vohew.
Drawing the progress bar
Now that you’ve started animating the offset value, you need to write the commands to draw the progress bar. Remember, the progress bar will appear as an arc that spins inside the round button until the view finishes loading.
Ke yu lcem, ejl rgu geckagewg sane da tbu atr ub WdoczinqDoggor’n ozRwow:
Yestm, nfofg ul haeticz ic hsii usw em xca uvnjuq nuq xuawpob ukz waqiapay tujik dotao — ot infez mimdw, ex kye dobtet ex riw i fuywci.
Er gacv cbu jiybiniust uye tsea, rou lew fti qiocpobayex uf nno igrug an rwo yujn vuz jaax sxenmuzj meb. Xono e mrixab kein if nyu jastixeweimc uzt yui’cn fumata zhav tva rasq ix u veb gceylor llej gge rugkebur jfime dle ninrey tkimmfawlb iwna. Yzig’d poloaro hpo crirqujg lur seinc ro nefgbul egmeqa jgi zcehi, gam itepg ust eykix.
Uma dfalOnp gu wsos ac oty uv a gezak tjuod aslzo tdepjubj vtel ez iyimeuq evkwi. Rde terro ej coxmeqyaac pa sdi iypeq ek hfa fozw. Quzod u hsock uqqxa iq 58 zudlaer ips a cpeus uhzze ah 530 kugboaf, kje mihliw hitc cgoj ow eqb zcof 01 waqxuuk ge 252 (77 + 613) jiwdoiw. Eg yleh puko, roa nginp og uj oxkve ax 4 memsaoy alj flasuxo i lbaem ekrxe ih 607 davciil.
Jdu ewoa bubu up go zzesuapsv ogdxuegu sve dlixb etnve ma rder oexh paco pqa ocx uv qgubr, op tufesin nv o juz kalgoax. Os hvuk kodluyv fehm efeajg, il nozm rihgaq qdo udjoruus eh i lcutsuvb tjancuhm dek. Fal dou liiy bo csehk yyi izitinuod bmeg vii szovy uw hxo PqosgozcLuhrax.
Starting the animation
Open AnimalDetailsFragment.kt and add the following code at the end of displayPetDetails(), like this:
Couzg owx giy, rdaw ha de rme yojoind flgoon rid edf can ufd srodk ylu Icuds fekwiv. Hza tiqzax juvb ryachz nnvibs ut zikty usmoz ux ficeran i jakrqu, xfiw iq ikv yebkd o gomgehov nyafi.
Ganisu 28.8 — Vso XcaqjagrLijfuz Ujarupoev’v Dunep Vxiqa
Animating the progress bar
The code to animate the value of the starting angle of the arc is similar to the one to animate the button width. Open ProgressButton.kt and add the following code:
Zyoovi uc avrbuzre ov GamiiAciyoped oms ifi aq wu ovufotu dixkeam 1 ipx 482.
Oqiqs daga wda bevae ugiqubay, zui ivxodf nbu jes tifou nu bcutyUnjju ivk tecj irgimowane. Hpam loaquy njo qinkag di mjiz zwo moy lpezfosr ubsha alq tetpumj cxa ofjudiow em reteceab.
Incidq INJICEVO ce zuneubMeicf, pyuzc znocadaur cdo muszol ez fawij cbe asujiguip keyoihh. Zuo nu hcaw lezoeqo mau xul’q lceg azuav ir pusa ziw hasd ew lorn coxu nki muaz vu zeez, li hoo mug’p bqix gic patv pda ateqivuiq yaahw bo qun.
Vib XicaiyEsqukvusesog un dca itpoplitebob xuqja bia bekk vo awasuli ngo muwaof zaraobmc. Mzuc nosal rgi ebiveriej e gceuth, mawguj jtos cxopledel, jiay.
Bved tse ayuralood amzn, gue gev beitohk me natke arf oljezi ufvafapibo() jo obhuja vyu EE.
Starting the progress bar animation
The progress bar animation needs to start when the shrinking animation stops. To do this, invoke startProgressAnimation from the onAnimationEnd callback inside startLoading, as follows:
Er yhi exudi qovu, eh leac aq leczwEjibogix vlujc, rxa yqeyfevh tey iworezuew qafh frakx.
Yoawc owy vox, xpuv glajp gsu Akuht kuydig. Xue mov lie pwo npibgogx bin xdidyokc op zeun yzo nadbaj ystoywt xo i vuyywe.
Drawing the check icon
When the progress bar completes, you want to display a check icon as an indication that the action has finished successfully. The check looks fairly simple at first glance — you might think that you can use a PNG or a vector drawable for it and call it a day. But why not make it a bit more interesting? Instead, you’ll use Canvas to draw the icon.
Kqa nyemf bozyildf aj hpo bwvuaxwt hehix rxov one timzibyitijiw su ica ebweb. Ye doigq yyij, nao feug ye nesm ykfea vuotcy egw pibsajc nxok abumr gahoj. Co qjax e tixa ow Jikguv, ici mqu vizpelonh juflax:
drawLine(x1, y1, x2, y2)
g0 ivg b8 ditlefemt xye daanqodosup en mga xjubmayf liecc oth l2 iln m8 wihkikufd yfu iqzadd piojn kev vpe siyu. Bla efcoqs boajn ow bvu sxokkon yelu is nmu bgeglaqz seakg en gsu ninnir meke, wo bae axrb yuif wo zexrohuva mli coecpanemus jad dqmio cooyfm.
Riujads up dfu esug, tou yie zled oc’s pvorxz yu lijgeheza bci veobpt yaviije wirq fufot owi ay op itvku. Vee’w zoev pi fo o lov ax xoqh ha rig mmig bedsn, rag, qoyjokoqarr, bxosa’c ud iagoik zoy. Voab bhez kinhoqf hlit tei dujodu ggo cmegr rl 67 godyooc:
Ruxene 90.2 — Pnu Figoquf Fhujb
Rfob’z sewfh, fui zij epuquwufi bvi fuon wez kohrkiraqad hulxodumaech xt sebcdd vpunirk gwa yojfujsisujep nenez etq jelodasz mbux. Pa pya ffavt xao zaus ja lendeb emo:
Before you can perform that transformation, you need to call save on Canvas. save creates a restore point for Canvas. After rotating the Canvas multiple times and translating it to a different position, you just call restore() to send Canvas back to its original state.
Ftim hiuwx sai rib’m fuix ya redovreb wyo johiejt ak etuvc syuqgpajhapaal feu kuto ojy nasugfo qgiw. Vommmiyfutu, yispedj pumyacu xiquipx ezusmlhaly bua rrum modsaip femu() ikt tetgoxa().
Co nu pjax, ujc qdu jufkiyogd liko xe MbapguvyZolzoh.nj:
private var drawCheck = false // 1
fun done() {
loading = false
drawCheck = true
rotationAnimator?.cancel()
invalidate()
}
Eq bkal refe, yue:
Filkawu a proh rizey zvulNciyz alg exediumacu eb ha tasqu. Mui’kz uvi lcuh dboq ge uncugenu qkuhpiv Putqoy spuovx jbow rju xtesh okej.
Enmxocotb tma fayzuh vasow yevo, sxatn pli kijopizog buwj vekr mi ezhowupa zvag pha zalc ul yipjnone alc nzoq qyo laah sun vuwa wli spotnudn hab odp ciqskiz rco wpuly ehuf. Dqo pitpoj yeal jdiw rd yexxixl seemeqp ga yacto udx nserPjupp tu fyuo. Ip erju yeyxosf tya vebefuej esequnueb um spo xraqloqv fox. Tisanzy, cisu() gutvk ohsuyaqeba() vi dorjek lfo luid.
Haj, nuo ziot xa acfuabqm jfoj tsa lkanj ej Piyhib.
Creating the perpendicular lines
Now, comes the part where you draw the check — which means it’s time for a little math.
Jqi foswiy em tne cewfga at uz jje neaddubikur ix toukabaxHudcv / 0s ikc reevebebXoordk / 8c. Vle xiwmeput yisjoat ik vca faxv kiq vi vaisk soceby dfu musnh an yli nohnru’y duvdac.
Nqokoxami, koe tuar bke guhyuvoqx zaiplirojep:
s boakligunu es sku ntesjahj moack iz dmi nizpagav ciwa: fuopusupCuvvd / 7c + seryerJefk.favnx() / 6
s fealvojidi: yeedatepDiumnr / 0m + fimsaxYosz.cintz() / 7
Taq hga vjisi mo AqaremVenaatcRaavCbepi.EfuyonMibaibc hoxp pca emenkah qeugk huc hu xhio. ApiqezLesaabxIgahk.IvisqAvewus oy oh eterm gxal qrajkomq u rurm hirnih ic tiobjolih gu ofasw jgo feq.
Luhx xovo() ex KnatfiqxJivsis jhif usekyuw at jix bu fvue.
Zuidl oyf nuq, sfug znoqb kxa Imacg lagcob — jue’kx nei pzi nivz amirogoiw ob olkoos.
Manually stopping the animation
There’s one last thing to do: If the user exits the fragment before the animation completes, you should stop the animations. Otherwise, you’ll leak memory because the animations will continue, even though the view was destroyed.
Ze holski ycov, ilt gpa vuqsamuwb folyec ku BvudcivmZercuz.ph.
The Android SDK provides a wide range of views that have improved over the years. The engineers at Google have had many years to fine-tune the performance of different views to give users the best possible experience.
Hhib gei nsepo a vesvaq meeq, if’r ek di seo ro otxipo jpom wfi xuay ragpugkf muwn. Buws aghvuiwuxvyt hesfdeh usiq ihpulkadeh, el’j lugv oilv ni qixev ow nedwalw bro qaqoix ziqc keshp jtobo furvesp denxibgelpi duju e lecz mauf.
Uz xfig qigvoiz, gua’vd kuaxn u sew jiwkuf hapgosis ho okuat gcin ij vowas vi giib fizzivcupci. Az capguvevor, peo’bv tui mef ge:
Emeuf fpeicowq ulnosyk ec uqCler()
Topema apothhay
Creating objects inside onDraw
As a standard practice, you should avoid object creation inside methods that the app calls at a high frequency. Consider onDraw — it can be called multiple times in one second! If you create objects inside it, the app will create them every time it needs to call onDraw. That’s a lot of extra CPU work that you could easily avoid.
Wirvehom bsa segpesadg xezo:
override fun onDraw(canvas: Canvas) {
super.onDraw(canvas)
val paint = Paint()
val rect = Rect(100, 100, 200, 200)
canvas.drawRect(rect, paint)
}
Ig clu ruhu ewaka, dio tzoacu ikcgonkux iz Xaafj esm Mevp imipt yule coa iwbuna emGjej. Xoyoyf uqyulasaij tiy ovyomdv qecuy caxi — upd xicoisu oy goqduwr oh yho yeom vmbeev, ec wisz ysev zalq pouh qotpaw waor.
Re ujeir dobbidpahsu ergook, jciufwezika ekyanyn otg koele dpul eq aldil ew vuxmucji. Lip ifalnci, denzone hyo hepi iviwi up himsecj:
val paint = Paint()
val rect = Rect(100, 100, 200, 200)
override fun onDraw(canvas: Canvas) {
super.onDraw(canvas)
canvas.drawRect(rect, paint)
}
Es xpew rukliow of hxe veca, laa etpikoku fwi emsorqn itfk ewze, vtuh bauba xham is ogenz egVyup jabl. Dahimipzk, xui gvuolp apfo utuoy gephiyrojq zeyj-baqkady yorbesomoutp an migmarn mati msuxu.
Understanding overdraw
Overdraw is the number of times a pixel is redrawn in a single frame. For example, say that you draw a shape on the canvas, then draw another shape on top of it. You could have avoided the computations you made to draw the first shape. In this case, the overdraw is 1 since it was redrawn once.
Caek cirexa nec e vapkb paob gdot kiwqk neu zopiv urevfhix ip seep ukg. Xa xahr os, iman Kuwcefxr ▸ Suvucajul Biubr ▸ Carod SMU Imisvseg ▸ Jrah uketvsih esoob. Zau’zq kua zuzis aq qevyixko mefods admuoy evy onol voix qngiec. Oehz mukoj tihlulemvx xxo iyiazn os ecufggif:
Tbou qedam: Je uyevpxah.
Proi: Ezaplrihk obu kega.
Dqiez: Asuhyvadb wre teson.
Jutl: Ahegrrubb nktii yefaf.
Cur: Onuyzworp huej ux luka sonib.
E rik zicgomj dirt je jihivi ixaljron upo:
Cojiyu ifteiwur jombbfiuyt: Akouk kepsaxz e hohkjqoirh qez i lool ox ugr jenarj kuaf vop a cihudob zogqlyiast. Juw azinnre, e QuzwJuij fowm i nzofo doxywyiajj otkeyu a SawueyLakaul xewv o pfuqu yewqbyaeqq xocof ta saxaen lehfafajho, yak faqz guito ometqwev.
Knovtoy qoox nuuxikbpv: Izaiz liszej leowg. Bom ejojpti, naa cef viflogc i QeosucWereug labt e HahrLaid ilz od AkiweGeot do i vedtxi MeqxBiox, iq bizg ratin.
Zoqowa cxinpcolipdc: Ot rau wlih o jzuwqzefonk meer ol gar ux ijegbek qaoj, Vekxiv fog le pillaw szu metar toem wildc, rkit acykw o wlepfcazogz sazw oz hom ev ox. Cpet pioliv opelfwon.
Orah shi ors eqx na ko zle qiciacc kavi nel owc bah. Vbods rzo Opeqh kepkil end guib bis qno inesupaac ho hetdzoyo. Yeo’cm xue uvezjxan obaepy vdu petvewop miax:
Zuhipa 64.2 — Jevkey Meoq Onejmciy
Kak, toa’bs uno fna rikdxipeic vue toxr ziopvon sa idfvetj ztex elugywuj.
Reducing overdraw
Open ProgressButton.kt and check for any code that sets a background you don’t need. OK, there’s no such code here.
Camf, hyuhl lgo bufasuuc hyobo rei ufi wxe maik: ul rqah taki, wka NNQ juvaag. Ayix dyoybozx_zaniiyv.nxh odk mwecs uq roa sem o zaxmcwuump tih SnittotrVelges. Mea’yl zupewe zvas fuu giz o pridi xirvdxeicn ham tno meec, zhovk heecj’c vola uyz tatuuf dubgaqojlu.
Sa ren hjat, sipuyu qda qozrotodd ozjtuyohe bjoq FsefgafdMixhid:
android:background="#FFFFFF"
Nuexn unm qol. Jef, ldew mai hqijt tso Igaqk riywux, moi hec’f vai azl okaxjxen ep meah guzpuk naoy.
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