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                                      原生App切圖的那些事兒

                                      時間:2016-02-28 23:24來源:未知 作者:admin 點擊:
                                      最小的分辨率是320x480,我們把這個尺寸定為基準界面尺寸(baseline),基準尺寸所用的圖標定為1倍圖(1x)。 在 實際設計過程中,為了降低設計成本,一般拿設備最高的分辨率作為設計稿的原始尺寸,拿iphone來說就是iphone5或5s的640x1136啦,當 然也可以用i
                                      最小的分辨率是320x480,我們把這個尺寸定為基準界面尺寸(baseline),基準尺寸所用的圖標定為1倍圖(1x)。

                                      在 實際設計過程中,為了降低設計成本,一般拿設備最高的分辨率作為設計稿的原始尺寸,拿iphone來說就是iphone5或5s的640x1136啦,當 然也可以用iphone4或4s的640x960,因為寬度都是640px,他們切圖的標準是一樣的。顯然,以1倍圖的基準尺寸(寬320px)為相對的 參考依據,寬640px的設計稿,以原始尺寸切出來的圖標稱為2倍圖(2x)。
                                       
                                      有人可能會問:為什么不拿320px作為設計稿的原始尺寸呢?因為1倍圖放大成為2倍圖遠比2倍圖縮小成1倍圖來得模糊!
                                       
                                      于是,在不考慮iphone6和iphone 6 plus的情況下,為了適配iphone,每個圖標需要切兩份。
                                       
                                      Android - 更為繁多的界面尺寸


                                      Android開源自由的代價就是設備規范的不可控,市面上充斥著各種品牌的android手機,有著各種各樣的尺寸和分辨率,為了適配各種不同分辨率的設備,同一個圖標需要切成N份,每一份對應一個尺寸。
                                       
                                      另外需要注意的是,Android里面開發用的尺寸單位是dp或sp(dp為元素表現尺寸,sp為字體尺寸)而不是iphone中的px。。。
                                      (責任編輯:)
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