Grafik elementni qanday qilib uning o'lchami har bir mashinada doimo bir xil bo'ladi?

Har bir qurilmada bir xil o'lchamli kvadrat chizishim kerak. Grafikli tugmachani chizishni rejalashtirmoqdamiz va men buni o'rtacha barmoqdan ancha kichikroq (yoki kattaroq) bo'lishini istamayman.

Men chizilgan elementni (bu holda kvadrat) o'lchamlarini o'zgartirmasligini ta'minlashning biron bir usuli bormi? Dyuymdagi santimetrlarda har doim bir xil o'lchamdagi bo'lishi kerak.

Hurmat bilan,

M.K.

0

3 javoblar

Har bir qurilma o'zining ekran zichligiga ega. Android sizning fikringizning o'lchamlarini quyidagicha qo'yishga imkon beradi:

dp: Density-independent Pixels - an abstract unit that is based on the physical density of the screen. These units are relative to a 160 dpi (dots per inch) screen, so 160dp is always one inch regardless of the screen density. The ratio of dp-to-pixel will change with the screen density, but not necessarily in direct proportion. You should use these units when specifying view dimensions in your layout, so the UI properly scales to render at the same actual size on different screens. (The compiler accepts both "dip" and "dp", though "dp" is more consistent with "sp".)

sp: Scale-independent Pixels - this is like the dp unit, but it is also scaled by the user's font size preference. It is recommend you use this unit when specifying font sizes, so they will be adjusted for both the screen density and the user's preference.

pt: Points - 1/72 of an inch based on the physical size of the screen.

px: Pixels - corresponds to actual pixels on the screen. This unit of measure is not recommended because the actual representation can vary across devices; each devices may have a different number of pixels per inch and may have more or fewer total pixels available on the screen.

mm: Millimeters - based on the physical size of the screen.

in: Inches - based on the physical size of the screen.

Misol uchun:


shuningdek, o'lchamlarni kodda ulardan foydalanish uchun resurs sifatida saqlashingiz mumkin. Buni ko'ring

1
qo'shib qo'ydi

har bir qurilmada grafik o'lchamlari quyidagicha hisoblanadi: balandlik/zichlik, kenglik/zichlik va boshqa o'lchamlar

0
qo'shib qo'ydi

D.P.Makovitskiy birligi bu uchun ishlab chiqarilgan.

Bu dp o'rniga px dan foydalanayotgan bo'lsangiz, nima sodir bo'lishini ko'rsatadigan juda qiziqarli konferentsiya: turli xil UI o'lchamlarini turli xil qurilmalarda olasiz:

http://developer.android.com/guide/practices/screens_support.html

(maxsus paragraf Zichlik mustaqilligi )

You may also want to take a look at android attributes android:minWidth and android:minHeight

0
qo'shib qo'ydi