Maitiro ekugadzira Android App – Chinangwa Systems, ShareActionProvider, uye OnItemLongClickListener

Ne Android, zviri nyore kugadzira app, asi kana usingazivi pokutangira, usanetseke – kune zvakawanda zvekushandisa online zvekukubatsira kunze. Iwe unogona kudzidza nezve Intent Systems, ShareActionProvider, uye OnItemLongClickListener. Iwe uchakurumidza kunge uri Android pro uye unokwanisa kuvaka yakanaka app pasina nguva! Ramba uchiverenga kuti udzidze kuti ungatanga sei!

Chinangwa Systems

Android apps inogona kushandisa Intent Systems kutaurirana pakati pezvikamu nezviitwa. Zvinangwa zvinogona kusetwa kukonzeresa zviito kana meseji yekutepfenyura. Iwe unogona kunyoresa kune zviitiko kuitira kuti uite kwavari. Unogona kutsanangura data uchishandisa URIs uye MIME mhando. Mhando yedata yaunoda kutumira inofanirwa kuenderana nezviito zvaunoda kukonzeresa muapp. Zvinangwa zvinogona kuve nemusoro data pamwe nekuwedzera data yakavakirwa paBundle kirasi, iyo yaunogona kutora neGetExtras() nzira.

Zvinangwa zvinogona kushandiswa kuratidza zviziviso zvemushandisi, vazivise nezvekuchinja kwemamiriro ezvinhu, kana kuita zvimwe zviito. Zvinangwa zvinogona zvakare kukonzeresa chiitiko chinogona kuitwa nemushandisi kamwe chete. Mabasa anogona kuvharwa kana mushandisi achida. Zvinangwa zvinoshanda kuseri kwezviitiko uye zvakasununguka kubva kumushandisi. Ivo zvakare vanokutendera kuti utumire mameseji kana faira ragadzirira kushandiswa kana kudhawunirodwa. Kugadzira nharembozha uchishandisa Intent Systems inzira yakaoma kunzwisisa.

Kugadzira Android application, iwe uchada inoenderana Nechinangwa System. Izvi zvinokugonesa kuburitsa mashandiro eapp yako kune mamwe maapplication. Android vavariro ibasa rekubatana. Zvinangwa inzira huru yekuita kuti application yako ionekwe nevashandisi vako. Nekuwedzera Chinangwa kupurojekiti yako, iwe unenge uri munzira kuenda kune Android app iyo munhu wese anogona kunakidzwa. Iyo Android chikuva chaita kuti zvinangwa zvive nyore kubatanidza nemamwe maapplication uye kuita kushandura pakati pezvishandiso zvisina musono.

Paunenge uchigadzira yako app, iwe unofanirwa kuziva mhando dzakasiyana dzezvinangwa uye kuti dzinoshanda sei. Unogona kushandisa izvi kugadzirisa yako Android app uye kugadzira zvimwe zvinopindirana zvemukati. Iwe unogona zvakare kusanganisa maIntents nemamwe maapplication, sezviziviso. Iwe unogona zvakare kushandisa nzira imwechete yekubatanidza Chinangwa neimwe app. Zvinangwa zvinogona kubatanidzwa neCarAppExtenders kuitira nyore kuita. Zvinangwa zvinogona zvakare kushandiswa mumaapps kuzivisa mushandisi nezve emergency.

Zvinangwa ndizvo zvakakosha zvikamu zveAroid apps. Chinangwa chinhu chedata chine ruzivo nezve chiitiko icho mushandisi anoda kuita. Zvinangwa zvinoshandiswa nenzira dzakawanda, kusanganisira kutsvaga kwenzvimbo, navigation, nezvimwe. Chinangwa chimwe chete chinogona kutanga chiitiko kana chikamu chebrowser. Uye iyo Android system inogona kuona zvikamu zvinogona kuita kune Chinangwa. Izvo zvakakoshawo kuziva mashandiro anoita Zvirongwa uye mashandisiro azvo kune ako maapuro.

Kana Chinangwa chatumirwa, iyo Android chikuva inomhanya sefa yechinangwa. Iyo data inosarudza kuti ndeipi chikamu chinotanga. Ipapo mushandisi anogona kusarudza kuti ndechipi chikamu chavanoda kuona. Iwe unogona kunyoresa zvikamu zvakasiyana kune zvimwe zviitiko uye mafirita echinangwa. Zvikasadaro, chikamu chisina sefa yevavariro chinodaidzwa chete kana chinangwa chakajeka chaburitswa. Izvi ndizvo zvinotsanangurwa nechitsauko chino. Kana chimwe chikamu chanyoreswa nechinangwa, inofanira kutsanangurwa nechiito chakarurama, mime type, uye meta-data.

ShareActionProvider

ShareActionProvider yeAroid isimba rine simba rinokutendera kuti ugovane uye ugamuchire data kubva kune mamwe maapplication eAroid. Ichi chimiro chikamu che Android SDK uye chakaunzwa mu Android 4.0 (API Level 14). Inogona kubatanidzwa muAction Bar yeako Android app. Kuti udzidze zvakawanda nezve ShareActionProvider, verenga chidzidzo chinotevera. Isu tichakurukura izvo zvekutanga zveShareActionProvider zvakadzama.

ShareActionProvider ye Android app erstellen mupi wechitatu anobvumira vanogadzira kuti vabatanidze nyore nyore neakasiyana data masosi.. Iwe unogona kushandisa ShareActionProvider kudhonza data kubva kumusika uye kuvaka yako yega yekudyara app. Paunenge wagadzira yako app, unogona kugovera ruzivo nemamwe maapplication pane chako kifaa. Semuyenzaniso, kana iwe uchida kugovera ruzivo pane yako Facebook peji, unogona kumisa chinongedzo kune ShareActionProvider webhusaiti.

Chimwe chinhu chinobatsira kugona kwayo kubata akawanda mushandisi zviito. Nenzira iyi, unogona kuita kuti app yako iwedzere kupindirana. Nekushandisa iyo ShareActionProvider, unogona kugadzira ruzivo rwemushandisi rwakagadzirirwa nzira iyo vashandisi vako vanochifarira. Uye, ne ShareActionProvider, iwe unogona zvakare kushandisa yako Android app kuunganidza uye kugovera ruzivo. Unogona kuishandisa kuwana zviziviso uye yambiro nezve meseji mitsva, uye ita kuti vashandisi vako vafare panguva imwe chete.

Iwe unogona kudzidza ese aya epamberi matekiniki mune Android app yekuvandudza kosi. Kosi yacho inosanganisira 35 zvidzidzo zvinokutora iwe nhanho nhanho kuburikidza nekuvandudzwa kweAroid app. Inokudzidzisawo maitiro ekugadzira SQLite dhatabhesi app. Ichakubatsirawo kuvaka Android apps kune mamwe mapuratifomu. Kana iwe uchiri wakanamatira muchikamu chekusimudzira, iwe unogona kugara uchitarisa kune kosi kana uine mibvunzo.

Pamusoro pe, unogona kushandisa iyo ShareActionProvider muAction Bar kutora mukana weiyo UI ficha inobvumidza iwe kupatsanura iyo ActionBar.. Iyi sarudzo inogona kushandiswa muAction Bar yako kana app yako ichimhanya pa Android 4.0 kana kupfuura. Unogona kudzidza zvakawanda nezve ShareActionProvider muAction Bar guide. Izvo zvakakosha kuti uzive kuti chimiro ichi chinongowanikwa pa Android 4.0 uye pamusoro.

OnItemLongClickListener

OnItemLongClickListeners mainterfaces anoita basa rekufona kana chinhu chadzvanywa kana kusarudzwa.. Iyi nzira inodaidzira iyo OnItemLongClickListener yeAndroid Framework kuti ione kana mushandisi akadzvanya kana kusarudza chinhu chakareba.. Iyo Android Framework inobva yakoshesa kupinza uye inoratidza pfupi popup ziviso nepo chaiyo chiitiko ichionekwa kumashure..

Iwe unofanirwa kushandisa OnItemClickListener-Interface usati wagadzira OnItemLongClickListeners-Instance.. Iyi interface inovimbisa kuti onItemClick() nzira inoshandiswa. Iyo inozoshevedzwa otomatiki neiyo Android chimiro kana chiitiko chekubaya-refu chikaitika. Kuti uwane mamwe mashoko, ona muenzaniso uri pasi apa. Iyi kodhi inoratidza maitiro ekushandisa OnItemLongClickListener mune yako Android app.

Panguva yechikamu chinoshanda chechidzidzo, isu tichashandisa OnItemClickListener. Isu tichanyoresa iyi interface neListView mune yedu Android app. Kana chinyorwa chiri muchirongwa chakadzvanywa kwenguva refu, OnItemLongClickListener ichaongorora. Zvakakosha kuziva kuti nzira iyi inogona kuitwa nekirasi isingazivikanwe kana MainActivity kirasi.

Kana uchinge wanyoresa OnItemLongClickListeners muenzaniso, unogona kugadzirisa yako ListView kuti upindure kana chinhu chiri murondedzero chadzvanywa. Izvi zvinokonzeresa mhinduro yekubaya-refu muAlertDialog. Iyo zvakare ipfungwa yakanaka kuve neListView inoteerera kune refu-tinya. Nenzira iyi, vashandisi vako vanogona kuwana nyore application yako pasina kusiya nyaradzo yeimba yavo.