Iyi Element ine Makomborero Kune Dzimwe Nyanzvi
HTML5 inosanganisira chimwe chinhu chinofadza chinonzi CANVAS. Iine zvakawanda zvakashandiswa, asi kuitira kuti uishandise unoda kudzidza JavaScript, HTML, uye dzimwe nguva CSS.
Izvi zvinogadzirisa chikamu cheKANVAS chinotyisa kune vagadziri vakawanda, uye chaizvoizvo, vazhinji vangangodaro vasingateereri chinhu ichocho kusvikira pane zvigadziriki zvinovimbika zvekugadzira mifananidzo ye CANVAS nemitambo pasina kuziva JavaScript.
Ipi HTML5 Canvas Inoshandiswa
Iko HTML5 CANVAS chikamu chinogona kushandiswa kwezvinhu zvizhinji izvo zvakamboitika, waifanira kushandira kushandiswa kwakaiswa se Flash kuti iite:
- dynamic graphics
- online uye offline games
- mifananidzo
- vhidhiyo yemavhidhiyo nemavhura
Ichokwadi, chikonzero chikuru vanhu vanoshandisa chinhu cheCANVAS ndechekuti zviri nyore sei kuisa ruvara rwebhuku rebhundaneti mukushandura kwekushandura kwewebhu uye nekushandura chiyero ichocho mumushandi webunhare yekushandiswa pamashoni emafoni uye mapiritsi.
Kana Tine Tichiedza, Nei Tichida Kanji?
Maererano nehuwandu hweHTML5, chinangwa che CANVAS ndechekuti:
"... chisarudzo-chinotarisirwa chinonzi bitmap chando, chinogona kushandiswa pakupa magrafu, mifananidzo yemufananidzo, unyanzvi, kana zvimwe zvifananidzo zvinoratidzwa phiri."Chinhu cheKANVAS chinoita kuti iwe uve nemifananidzo, maikirwo, mitambo, unyanzvi, nezvimwe zviratidzo zviri papeji yewebhu munguva chaiyo.
Iwe unogona kunge uchifunga kuti tinogona kutotanga kuita izvozvo ne Flash, asi kune maviri maviri akasiyana pakati peCANVAS uye Flash:
- Nhengo yeCANVAS yakaiswa mukati me HTML. Zvinyorwa zvinodhonza pazviri zvinenge zviri mu HTML kana mune imwe faira iri kunze. Izvi zvinoreva chikamu cheKANVAS chikamu chebhuku rechinyorwa, kana DOM.
- Flash iri yakavharwa kunze kwefaira. Inoshandisa iyo EMBED kana kuti OBJECT chinhu chinoratidza, uye haigoni kuwirirana zvakananga nezvimwe zvimwe zvinhu zve HTML. Nokuti chikamu cheCANVAS chikamu cheDOM, inogona kuwirirana neDOM nenzira dzakawanda.
- Somuenzaniso, iwe unogona kuumba hupenyu hunoshanduka kana imwe chikamu chejiji ichibatanidzwa-sechimiro chemufomu chiri kuzadzirwa. Ne Flash, iyo yaunogona kuita ndeyokutanga Flash movie kana mifananidzo, asi ne KUNYAYA iwe unogona kugadzira migumisiro yakasiyana yakasiyana-siyana, kunyange kuwedzera zvinyorwa kubva pamunda wemafaira mukati memafirimu.
- Nhengo yeCANVAS ine natively inotsigirwa nemavhuraji ewebhu. Kuti vashandise vashandise Flash, vashanduri vavo vanofanira kunge vane plugin yakaiswa. Izvi zvinowanzotambudza vanhu vakawanda nekuda kwekanguva kwekutsvaira kwe Flash kana chokwadi chekuti sangano ravo rekushandisa harisi kutsigira iro.
- Zvaiwanzove kuti mutsvaga wega wega waive ne plugin yakaiswa, asi iyo haisisiri iyo, uye vazhinji vari kubvisa kunyange plugin nekuda kwezvinetso. Kunyanya, hazviwanikwi kunyange pane yakakurumbira iOS platform.
Canvas Inobatsira Kunyange Kana Usati Wambogadzirirwa Kushandisa Flash
Chimwe chezvikonzero chikuru nei chikonzero cheCANVAS chiri chakavhiringidza ndechokuti vazhinji vakagadzira vave vachishandiswa kuwebhu yakakwana. Mifananidzo inogona kufara, asi izvi zvakaitwa neGIF, uye zvekuti unokwanisa kuvhara mavhidhiyo mumapeji asi zvakare, ivhidhiyo yakasimba iyo inongogara peji uye zvichida inotanga kana kumira nekuda kwekubatana, asi ndizvo zvose.
Nhengo yeCANVAS inokubvumira kuti uwedzere kushandiswa kwakanyanya kune mapeji ako ewebhu nekuti iye zvino unogona kudzora maikirwo, mifananidzo, uye kunyora zvinyorwa nerurimi rwemashoko. Chinhu cheKANVAS chinokubatsira kuti utende mapikicha, mapikicha, marati, uye mairafu muzvikamu zvehupenyu.
Nguva Yokufunga Kufunga Kushandisa Canvas Element
Vateereri vako vanofanira kuva iwe kutanga iwe uchifunga paunosarudza kana uchishandisa chinhu cheAIDS.
Kana vateereri vako vari kunyanya kushandisa Windows XP uye IE 6, 7, kana 8, ipapo kusika chinhu chinoshandiswa chechigadzirwa chisingaverengeki sezvo vashandisi ivavo vasiri kutsigira.
Kana uri kuvaka shanduro iyo inoshandiswa paWindows mishonga chete, ipapo Flash ingava yako yakanakisa kubheji. Chikumbiro chinofanira kushandiswa paWindows uye Mac makombiyuta inogona kubatsirwa kubva kushandiswa kweSillowlight.
Zvisinei, kana chikumbiro chako chichifanira kuonekwa pane zvigadzirwa zvemafaira (zvose Android uye iOS) pamwe chete nemakombiyuta emazuva ano emakombiyuta (akavandudzwa kusvika kune zvishanduro zvekutsvaga), saka kushandisa CANVAS chinhu chakanaka.
Ramba uchifunga kuti kushandisa chinhu ichi kunokubvumira kuti uwane nzira dzekugumburwa dzakadai semifananidzo yakadzika yevashandisi vekare vasiri kutsigira.
Zvisinei, hazvikurudzirwi kushandisa HTML5 chemba yezvinhu zvose. Iwe haufaniri kumushandisa zvinhu zvakadai sechitsuwa chako, musoro wepamusoro, kana kufamba-famba (kunyange zvazvo ukashandisa iyo kurarama chikamu cheimwe yeizvi zvingave zvakanaka).
Maererano neshoko, iwe unofanira kushandisa zvinhu zvakakosha pane zvauri kuedza kuvaka. Saka kushandisa chinhu che HEADER pamwe chete nemifananidzo uye zvinyorwa zvinoshandiswa kuCANDVAS chekushandisa musoro wako uye logo.
Uyezve, kana uri kuumba peji yepaji kana shanduro iyo yakagadzirirwa kushandiswa mumutauro usingasvikiki sekudhinda, unofanirwa kuziva kuti chinhu cheCANVAS chakashandurwa zvinyorwa hachikwanisi kushandiswa sezvaunotarisira. Iwe unogona kuwana chinyorwa chezvinhu zviripo zvemazuva ano kana zvezvinyorwa zvekudzokera.