{"id":50518,"date":"2023-12-17T07:59:46","date_gmt":"2023-12-17T07:59:46","guid":{"rendered":"https:\/\/masterskills.org\/blog\/20-bi-kip-tra-loi-cac-cau-hoi-phong-van-android-thuong-gap.html"},"modified":"2023-12-17T07:59:46","modified_gmt":"2023-12-17T07:59:46","slug":"20-bi-kip-tra-loi-cac-cau-hoi-phong-van-android-thuong-gap","status":"publish","type":"post","link":"https:\/\/masterskills.org\/blog\/20-bi-kip-tra-loi-cac-cau-hoi-phong-van-android-thuong-gap.html","title":{"rendered":"20 B\u00ed K\u00edp Tr\u1ea3 L\u1eddi C\u00e1c C\u00e2u H\u1ecfi Ph\u1ecfng V\u1ea5n Android Th\u01b0\u1eddng G\u1eb7p"},"content":{"rendered":"
\n

Trong th\u1ebf gi\u1edbi hi\u1ec7n \u0111\u1ea1i, c\u00e1c thi\u1ebft b\u1ecb di \u0111\u1ed9ng th\u00f4ng minh \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t v\u1eadt d\u1ee5ng quan tr\u1ecdng v\u00e0 c\u01a1 b\u1ea3n trong cu\u1ed9c s\u1ed1ng c\u1ee7a m\u1ed7i ng\u01b0\u1eddi.\u00a0<\/p>\n

V\u00ec th\u1ebf vi\u1ec7c ph\u00e1t tri\u1ec3n c\u00e1c h\u1ec7 \u0111i\u1ec1u h\u00e0nh d\u00e0nh ri\u00eang cho thi\u1ebft b\u1ecb di \u0111\u1ed9ng tr\u1edf th\u00e0nh m\u1ed9t ng\u00e0nh ngh\u1ec1 c\u00f3 nhu c\u1ea7u cao tr\u00ean v\u1ecb tr\u01b0\u1eddng vi\u1ec7c l\u00e0m.<\/p>\n

Android \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n b\u1edfi Google v\u00e0 ph\u00e1t h\u00e0nh l\u1ea7n \u0111\u1ea7u ti\u00ean v\u00e0o n\u0103m 2008, \u0111ang ng\u00e0y c\u00e0ng th\u1ec3 hi\u1ec7n v\u1ecb tr\u00ed c\u1ee7a m\u00ecnh v\u1edbi h\u01a1n 70% th\u1ecb ph\u1ea7n. Android hi\u1ec7n nay \u0111\u01b0\u1ee3c coi l\u00e0 h\u1ec7 \u0111i\u1ec1u h\u00e0nh di \u0111\u1ed9ng ph\u1ed5 bi\u1ebfn nh\u1ea5t tr\u00ean th\u1ebf gi\u1edbi.<\/p>\n

\u0110i\u1ec1u \u0111\u00f3 \u0111\u00e3 l\u00e0m cho nhu c\u1ea7u t\u00ecm ki\u1ebfm c\u00e1c nh\u00e0 l\u1eadp tr\u00ecnh Android tr\u1edf n\u00ean m\u1ea1nh m\u1ebd h\u01a1n bao gi\u1edd h\u1ebft. \u0110\u00e2y l\u00e0 v\u1ecb tr\u00ed quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c c\u00f4ng ty v\u00e0 v\u00f4 c\u00f9ng c\u1ea1nh tranh hi\u1ec7n nay.<\/p>\n

Sau \u0111\u00e2y l\u00e0 b\u00ed k\u00edp tr\u1ea3 l\u1eddi 20 c\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n Android<\/strong> th\u01b0\u1eddng g\u1eb7p cho b\u1ea1n!<\/p>\n

C\u00e1c c\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n android v\u1ec1 chuy\u00ean m\u00f4n<\/strong><\/h2>\n
\n
\"c\u00e2u
M\u1ed9t s\u1ed1 c\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n Android th\u01b0\u1eddng g\u1eb7p<\/em><\/figcaption><\/figure>\n<\/div>\n

\u00a01. Android l\u00e0 g\u00ec?<\/strong><\/h3>\n

\u0110\u00e2y l\u00e0 c\u00e2u h\u1ecfi c\u01a1 b\u1ea3n v\u00e0 th\u01b0\u1eddng g\u1eb7p nh\u1ea5t trong b\u1ed9 c\u00e1c c\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n Android<\/strong>.\u00a0 \u0110\u1ec3 tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi n\u00e0y b\u1ea1n kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 \u0111\u01b0a ra \u0111\u1ecbnh ngh\u0129a \u0111\u00fang t\u1eebng ch\u1eef m\u1ed9t trong s\u00e1ch v\u1edf.\u00a0<\/p>\n

C\u00e1i m\u00e0 nh\u00e0 tuy\u1ec3n d\u1ee5ng mong ch\u1edd \u1edf b\u1ea1n l\u00e0 vi\u1ec7c b\u1ea1n th\u1ef1c s\u1ef1 hi\u1ec3u kh\u00e1i ni\u1ec7m android, c\u0169ng t\u1ee9c l\u00e0 hi\u1ec3u c\u01a1 b\u1ea3n vi\u1ec7c m\u00e0 b\u1ea1n \u0111ang l\u00e0m v\u00e0 di\u1ec5n \u0111\u1ea1t n\u00f3 l\u1ea1i m\u1ed9t c\u00e1ch d\u1ec5 hi\u1ec3u, s\u00e1ng ngh\u0129a theo ng\u00f4n ng\u1eef c\u1ee7a b\u1ea1n.<\/p>\n

V\u1ec1 c\u01a1 b\u1ea3n Android l\u00e0 m\u1ed9t h\u1ec7 \u0111i\u1ec1u h\u00e0nh m\u00e3 ngu\u1ed3n m\u1edf \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ch\u1ee7 y\u1ebfu tr\u00ean c\u00e1c thi\u1ebft b\u1ecb di \u0111\u1ed9ng, ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng v\u00e0 m\u00e1y t\u00ednh b\u1ea3ng.\u00a0<\/p>\n

\u0110\u00e2y l\u00e0 h\u1ec7 th\u1ed1ng d\u1ef1a tr\u00ean nh\u00e2n Linux \u0111\u01b0\u1ee3c trang b\u1ecb v\u1edbi c\u00e1c th\u00e0nh ph\u1ea7n phong ph\u00fa cho ph\u00e9p c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n mobile t\u1ea1o v\u00e0 ch\u1ea1y c\u00e1c \u1ee9ng d\u1ee5ng c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n c\u1ea3 c\u00e1c ch\u1ee9c n\u0103ng c\u01a1 b\u1ea3n v\u00e0 n\u00e2ng cao.\u00a0<\/p>\n

Android \u0111\u01b0\u1ee3c ra m\u1eaft v\u00e0 ph\u00e1t tri\u1ec3n b\u1edfi Google. Cho \u0111\u1ebfn nay Android c\u00f9ng \u0111\u1ed1i th\u1ee7 iOS nh\u00e0 Apple l\u00e0 hai h\u1ec7 \u0111i\u1ec1u h\u00e0nh ph\u1ed5 bi\u1ebfn nh\u1ea5t h\u00e0nh tinh.<\/p>\n

2. Context l\u00e0 g\u00ec?<\/strong><\/h3>\n

Context trong Android, nh\u01b0 t\u00ean g\u1ecdi c\u1ee7a n\u00f3, l\u00e0 ng\u1eef c\u1ea3nh c\u1ee7a tr\u1ea1ng th\u00e1i hi\u1ec7n t\u1ea1i c\u1ee7a c\u00e1c \u1ee9ng d\u1ee5ng ho\u1eb7c c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng trong m\u00f4i tr\u01b0\u1eddng h\u1ec7 th\u1ed1ng. <\/p>\n

Context \u0111i k\u00e8m v\u1edbi c\u00e1c d\u1ecbch v\u1ee5 nh\u01b0 c\u1ea5p quy\u1ec1n truy c\u1eadp v\u00e0o c\u01a1 s\u1edf d\u1eef li\u1ec7u v\u00e0 t\u00f9y ch\u1ecdn, gi\u1ea3i quy\u1ebft t\u00e0i nguy\u00ean v\u00e0 c\u00f2n h\u01a1n th\u1ebf n\u1eefa.<\/p>\n

C\u00f3 hai lo\u1ea1i context:<\/p>\n

    \n
  • Activity Context:<\/strong> Context n\u00e0y \u0111\u01b0\u1ee3c g\u1eafn v\u1edbi v\u00f2ng \u0111\u1eddi c\u1ee7a m\u1ed9t activity (ho\u1ea1t \u0111\u1ed9ng) nh\u1ea5t \u0111\u1ecbnh. Lo\u1ea1i context n\u00e0y \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn s\u1eed d\u1ee5ng khi b\u1ea1n ch\u1ec9 c\u00f3 nhu c\u1ea7u ho\u1ea1t \u0111\u1ed9ng trong ph\u1ea1m vi c\u1ee7a activity c\u1ed1 \u0111\u1ecbnh ho\u1eb7c context m\u00e0 b\u1ea1n c\u1ea7n tuy kh\u00f4ng ph\u1ea3i l\u00e0 c\u1ee7a activity n\u00e0y nh\u01b0ng c\u00f3 v\u00f2ng \u0111\u1eddi \u0111\u01b0\u1ee3c g\u1eafn v\u1edbi context hi\u1ec7n t\u1ea1i.<\/li>\n
  • Application context:<\/strong> context n\u00e0y \u0111\u01b0\u1ee3c g\u1eafn v\u1edbi v\u00f2ng \u0111\u1eddi c\u1ee7a m\u1ed9t application (\u1ee9ng d\u1ee5ng) c\u1ee5 th\u1ec3. Application context c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi b\u1ea1n c\u1ea7n m\u1ed9t context m\u00e0 v\u00f2ng \u0111\u1eddi c\u1ee7a n\u00f3 t\u00e1ch bi\u1ec7t v\u1edbi context hi\u1ec7n t\u1ea1i ho\u1eb7c khi b\u1ea1n \u0111ang chuy\u1ec3n m\u1ed9t context v\u01b0\u1ee3t ra ngo\u00e0i ph\u1ea1m vi c\u1ee7a activity.<\/li>\n<\/ul>\n

    3. Application l\u00e0 g\u00ec?<\/strong><\/h3>\n

    C\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n Android<\/strong> th\u01b0\u1eddng g\u1eb7p ti\u1ebfp theo l\u00e0 Application l\u00e0 g\u00ec?\u00a0<\/p>\n

    Application hay ch\u00ednh x\u00e1c h\u01a1n l\u00e0 application class trong l\u1eadp tr\u00ecnh Android l\u00e0 thu\u1eadt ng\u1eef d\u00f9ng \u0111\u1ec3 ch\u1ec9 l\u1edbp c\u01a1 s\u1edf trong \u1ee9ng d\u1ee5ng.\u00a0<\/p>\n

    L\u1edbp c\u01a1 s\u1edf n\u00e0y s\u1ebd ch\u1ee9a t\u1ea5t c\u1ea3 c\u00e1c y\u1ebfu t\u1ed1 quan tr\u1ecdng h\u1ed7 tr\u1ee3 cho t\u1ea5t c\u1ea3 c\u00e1c ho\u1ea1t \u0111\u1ed9ng v\u00e0 d\u1ecbch v\u1ee5 c\u1ee7a Android. Khi b\u1ea1n kh\u1edfi \u0111\u1ed9ng h\u1ec7 \u0111i\u1ec1u h\u00e0nh Android th\u00ec application class l\u00e0 th\u1ee9 \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c kh\u1edfi t\u1ea1o.<\/p>\n

    4. Li\u1ec7t k\u00ea \u01b0u \u0111i\u1ec3m c\u1ee7a h\u1ec7 th\u1ed1ng Android?<\/strong><\/h3>\n

    B\u1ed1n \u01b0u \u0111i\u1ec3m ch\u00ednh c\u1ee7a Android l\u00e0:<\/p>\n

      \n
    • Android c\u00f3 m\u00e3 ngu\u1ed3n m\u1edf, v\u00ec v\u1eady n\u00f3 mi\u1ec5n ph\u00ed<\/li>\n
    • Kh\u00e1c v\u1edbi IOS l\u00e0 h\u1ec7 \u0111i\u1ec1u h\u00e0nh ch\u1ec9 t\u00edch h\u1ee3p ri\u00eang cho c\u00e1c thi\u1ebft b\u1ecb c\u1ee7a Apple, Android c\u00f3 s\u1ef1\u00a0 \u0111\u1ed9c l\u1eadp v\u1edbi n\u1ec1n t\u1ea3ng, v\u00ec v\u1eady n\u00f3 h\u1ed7 tr\u1ee3 c\u1ea3 Windows, Linux v\u00e0 Mac.<\/li>\n
    • Android h\u1ed7 tr\u1ee3 m\u1ed9t s\u1ed1 c\u00f4ng ngh\u1ec7 kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 Bluetooth, gi\u1ecdng n\u00f3i, m\u00e1y \u1ea3nh, Wifi, v.v.<\/li>\n
    • Android s\u1eed d\u1ee5ng DVM (M\u00e1y \u1ea3o Dalvik), \u0111\u00e2y l\u00e0 m\u1ed9t m\u00e1y \u1ea3o c\u00f3 m\u1ee9c \u0111\u1ed9 t\u1ed1i \u01b0u h\u00f3a cao.<\/li>\n<\/ul>\n

      5. N\u00eau s\u1ef1 kh\u00e1c bi\u1ec7t c\u1ee7a \u201cimplicit\u201d v\u00e0 \u201cexplicit\u201d<\/strong><\/h3>\n

      \u0110\u1ed1i v\u1edbi c\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n Android<\/strong> n\u00e0y b\u1ea1n s\u1ebd ng\u1ea7m hi\u1ec3u \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u01b0\u1ee3c h\u1ecfi c\u1ee5 th\u1ec3 l\u00e0 Intent (m\u1ee5c \u0111\u00edch):<\/p>\n

        \n
      • Explicit (Intent)<\/strong> \u2013 (M\u1ee5c \u0111\u00edch ) r\u00f5 r\u00e0ng :\u00a0 m\u1ee5c \u0111\u00edch r\u00f5 r\u00e0ng l\u00e0 n\u01a1i b\u1ea1n th\u00f4ng b\u00e1o cho h\u1ec7 th\u1ed1ng v\u1ec1 ho\u1ea1t \u0111\u1ed9ng ho\u1eb7c th\u00e0nh ph\u1ea7n h\u1ec7 th\u1ed1ng m\u00e0 n\u00f3 n\u00ean s\u1eed d\u1ee5ng \u0111\u1ec3 t\u1ea1o ph\u1ea3n h\u1ed3i cho \u00fd \u0111\u1ecbnh n\u00e0y.<\/li>\n
      • Implicit (Intent) <\/strong>\u2013 (M\u1ee5c \u0111\u00edch) ng\u1ea7m : m\u1ee5c \u0111\u00edch ng\u1ea7m cho ph\u00e9p b\u1ea1n khai b\u00e1o h\u00e0nh \u0111\u1ed9ng b\u1ea1n mu\u1ed1n th\u1ef1c hi\u1ec7n, sau \u0111\u00f3 h\u1ec7 th\u1ed1ng Android s\u1ebd ki\u1ec3m tra th\u00e0nh ph\u1ea7n n\u00e0o \u0111\u01b0\u1ee3c \u0111\u0103ng k\u00fd \u0111\u1ec3 x\u1eed l\u00fd h\u00e0nh \u0111\u1ed9ng c\u1ee5 th\u1ec3 \u0111\u00f3.<\/li>\n<\/ul>\n

        6. Bytecode m\u00e0 h\u1ec7 th\u1ed1ng Android s\u1eed d\u1ee5ng l\u00e0 g\u00ec?<\/strong><\/h3>\n

        \u0110\u00e2y l\u00e0 m\u1ed9t c\u00e2u h\u1ecfi d\u1ec5 m\u1eafc b\u1eaby trong b\u1ed9 c\u00e1c c\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n Android<\/strong>, V\u00ec b\u1ea1n s\u1ebd d\u1ec5 d\u00e0ng b\u1ecb l\u1eabn l\u1ed9n gi\u1eefa c\u00e1c kh\u00e1i ni\u1ec7m.\u00a0<\/p>\n

        R\u1ea5t nhi\u1ec1u t\u00e0i li\u1ec7u khi b\u1ea1n t\u00ecm hi\u1ec3u s\u1ebd n\u00f3i r\u1eb1ng Android kh\u00f4ng s\u1eed d\u1ee5ng Bytecode, nh\u01b0ng th\u1eadt ra ch\u00ednh x\u00e1c Android kh\u00f4ng s\u1eed d\u1ee5ng bytecode ti\u00eau chu\u1ea9n m\u00e0 n\u00f3 c\u00f3 m\u00e3 ri\u00eang \u2013 m\u1ed9t lo\u1ea1i bytecode \u0111\u1eb7c tr\u01b0ng v\u00e0 d\u00e0nh ri\u00eang cho android. M\u00e3 \u0111\u00f3 \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 Dalvik Virtual Machine.<\/p>\n

        7. \u201cContentProvider\u201d c\u00f3 ch\u1ee9c n\u0103ng nhi\u1ec7m v\u1ee5 g\u00ec?<\/strong><\/h3>\n

        ContentProvider l\u00e0 m\u1ed9t l\u1ec7nh trong android, l\u1ec7nh n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi c\u00f3 nhu c\u1ea7u truy c\u1eadp d\u1eef li\u1ec7u, nh\u01b0ng \u0111i\u1ec1u ki\u1ec7n l\u00e0 c\u00e1c d\u1eef li\u1ec7u n\u00e0y ph\u1ea3i c\u00f3 t\u1ed5 ch\u1ee9c v\u00e0 c\u1ea5u tr\u00fac c\u1ee5 th\u1ec3.\u00a0<\/p>\n

        Kh\u00f4ng ch\u1ec9 th\u1ebf, ContentProvider c\u00f2n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c xem nh\u01b0 m\u1ed9t lo\u1ea1i ph\u01b0\u01a1ng ti\u1ec7n d\u00f9ng k\u1ebft n\u1ed1i c\u00e1c chu\u1ed7i m\u00e3 trong Android.<\/p>\n

        8. Ph\u01b0\u01a1ng th\u1ee9c onTrimMemory() ngh\u0129a l\u00e0 g\u00ec?<\/strong><\/h3>\n

        OnTrimMemory() c\u00f3 th\u1ec3 hi\u1ec3u \u0111\u01a1n gi\u1ea3n l\u00e0 m\u1ed9t ph\u01b0\u01a1ng th\u1ee9c \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi h\u1ec7 \u0111i\u1ec1u h\u00e0nh x\u00e1c \u0111\u1ecbnh r\u1eb1ng \u0111\u00e2y l\u00e0 th\u1eddi \u0111i\u1ec3m \u0111\u1ec3 c\u1eaft b\u1edbt m\u1ed9t quy tr\u00ecnh kh\u00f4ng c\u1ea7n thi\u1ebft \u0111ang chi\u1ebfm d\u1ee5ng b\u1ed9 nh\u1edb trong qu\u00e1 tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng c\u1ee7a h\u1ec7 \u0111i\u1ec1u h\u00e0nh.<\/p>\n

        \u0110i\u1ec1u n\u00e0y th\u01b0\u1eddng s\u1ebd x\u1ea3y ra\u00a0 khi h\u1ec7 th\u1ed1ng ch\u1ea1y \u1edf ch\u1ebf \u0111\u1ed9 n\u1ec1n v\u00e0 kh\u00f4ng c\u00f3 \u0111\u1ee7 b\u1ed9 nh\u1edb \u0111\u1ec3 gi\u1eef cho nhi\u1ec1u qu\u00e1 tr\u00ecnh n\u1ec1n ch\u1ea1y c\u00f9ng m\u1ed9t l\u00fac nh\u01b0 mong mu\u1ed1n.\u00a0<\/p>\n

        V\u00ed d\u1ee5 \u0111i\u1ec1u n\u00e0y s\u1ebd x\u1ea3y ra khi ti\u1ebfn tr\u00ecnh ch\u1ea1y \u1edf ch\u1ebf \u0111\u1ed9 n\u1ec1n v\u00e0 kh\u00f4ng \u0111\u1ee7 b\u1ed9 nh\u1edb \u0111\u1ec3 duy tr\u00ec \u0111\u01b0\u1ee3c nhi\u1ec1u ti\u1ebfn tr\u00ecnh n\u1ec1n nh\u01b0 mong mu\u1ed1n, khi \u0111\u00f3 h\u1ec7 th\u1ed1ng s\u1ebd d\u1ef1a tr\u00ean \u0111\u1ed9 \u01b0u ti\u00ean c\u1ee7a ti\u1ebfn tr\u00ecnh \u0111\u1ec3 c\u1eaft b\u1ecf b\u1edbt t\u1eebng ti\u1ebfn tr\u00ecnh m\u1ed9t cho t\u1edbi khi b\u1ed9 nh\u1edb \u0111\u01b0\u1ee3c gi\u1ea3i ph\u00f3ng \u0111\u1ee7 cho h\u1ec7 th\u1ed1ng ch\u1ea1y \u1ed5n \u0111\u1ecbnh.\u00a0<\/p>\n

        9. S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa margin & padding<\/strong><\/h3>\n
        \n
        \"c\u00e1c
        B\u1ee9c h\u00ecnh ph\u00eda tr\u00ean th\u1ec3 hi\u1ec7n r\u00f5 r\u00e0ng nh\u1ea5t s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa margin v\u00e0 padding.<\/em><\/figcaption><\/figure>\n<\/div>\n

        Coi hai \u0111\u1ed1i t\u01b0\u1ee3ng c\u1ea7n x\u00e9t v\u00e0 m\u1ed7i \u0111\u1ed1i t\u01b0\u1ee3ng s\u1ebd g\u1ed3m content l\u00e0 n\u1ed9i dung ch\u00ednh b\u00ean trong v\u00e0 v\u00f2ng border bao quanh n\u00f3 \u1edf b\u00ean ngo\u00e0i.\u00a0<\/p>\n

        Padding s\u1ebd l\u00e0 kho\u1ea3ng c\u00e1ch t\u1eeb ph\u1ea7n vi\u1ec1n hi\u1ec3n th\u1ecb \u0111\u1ebfn n\u1ed9i dung ch\u00ednh b\u00ean trong c\u1ee7a m\u1ed7i \u0111\u1ed1i t\u01b0\u1ee3ng. C\u00f2n Margin l\u00e0 kho\u1ea3ng c\u00e1ch gi\u1eefa border c\u1ee7a hai \u0111\u1ed1i t\u01b0\u1ee3ng.\u00a0\u00a0<\/p>\n

        10. \u201cActivity\u201d l\u00e0 g\u00ec?<\/strong><\/h3>\n

        Activity (ho\u1ea1t \u0111\u1ed9ng) c\u0169ng l\u00e0 m\u1ed9t kh\u00e1i ni\u1ec7m v\u00f4 c\u00f9ng c\u0103n b\u1ea3n trong Android, th\u1ebf n\u00ean c\u00e2u h\u1ecfi n\u00e0y c\u0169ng thu\u1ed9c top c\u00e1c c\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n Android <\/strong>\u0111\u01b0\u1ee3c c\u00e1c nh\u00e0 tuy\u1ec3n d\u1ee5ng \u01b0u \u00e1i s\u1eed d\u1ee5ng.\u00a0<\/p>\n

        M\u1ee5c \u0111\u00edch c\u1ee7a c\u00e2u h\u1ecfi n\u00e0y kh\u00f4ng ph\u1ea3i l\u00e0m kh\u00f3 b\u1ea1n m\u00e0 \u0111\u1ec3 th\u1eed th\u00e1ch ki\u1ebfn th\u1ee9c n\u1ec1n t\u1ea3ng v\u00e0 th\u1eed xem b\u1ea1n c\u00f3 d\u1ec5 d\u00e0ng b\u1ecb b\u1ed1i r\u1ed1i khi g\u1eb7p m\u1ed9t c\u00e2u h\u1ecfi \u0111\u01a1n gi\u1ea3n sau nh\u1eefng c\u00e2u h\u1ecfi c\u00f3 \u0111\u1ed9 chuy\u00ean m\u00f4n cao hay kh\u00f4ng.<\/p>\n

        Activity hi\u1ec3u \u0111\u01a1n gi\u1ea3n l\u00e0 m\u1ed9t c\u1eeda s\u1ed5 cho giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng. N\u00f3 gi\u00fap hi\u1ec3n th\u1ecb \u0111\u1ea7u ra ho\u1eb7c th\u1eadm ch\u00ed c\u00f3 th\u1ec3 y\u00eau c\u1ea7u \u0111\u1ea7u v\u00e0o \u0111\u1ec3 c\u00e1c h\u1ed9p tho\u1ea1i v\u00e0 c\u00e1c vai tr\u00f2 kh\u00e1c c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n nh\u1eb1m t\u1ea1o ra giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng.<\/p>\n

        11. S\u1ef1 kh\u00e1c nhau c\u1ee7a add v\u00e0 replace fragment trong backstack?<\/strong><\/h3>\n

        Tr\u01b0\u1edbc h\u1ebft c\u1ea7n \u0111\u1ecbnh ngh\u0129a fragment l\u00e0 g\u00ec? fragment c\u00f3 th\u1ec3 hi\u1ec3u l\u00e0 t\u00e1c v\u1ee5 qu\u1ea3n l\u00fd m\u1ed9t kh\u00f4ng gian m\u00e0n h\u00ecnh, kh\u00f4ng gian fragment s\u1ebd thu\u1ed9c v\u1ec1 m\u1ed9t activity n\u00e0o \u0111\u00f3.\u00a0<\/p>\n

        M\u1ed9t Activity c\u00f3 th\u1ec3 c\u00f3 nhi\u1ec1u Fragment, v\u00e0 c\u00e1c fragment n\u00e0y c\u00f3 th\u1ec3 c\u00f9ng nhau hi\u1ec3n th\u1ecb l\u00ean m\u1ed9t m\u00e0n h\u00ecnh ho\u1eb7c lu\u00e2n phi\u00ean hi\u1ec3n th\u1ecb. V\u00e0 m\u1ed9t \u00fd n\u1eefa, m\u1ed9t Fragment n\u00e0o \u0111\u00f3 c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c khai b\u00e1o v\u00e0 s\u1eed d\u1ee5ng b\u1edfi nhi\u1ec1u Activity kh\u00e1c nhau.\u00a0<\/p>\n

          \n
        • Replace ch\u00ednh l\u00e0 thay th\u1ebf fragment hi\u1ec7n c\u00f3 b\u1eb1ng m\u1ed9t fragment m\u1edbi. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 fragment c\u0169 c\u1ee7a b\u1ea1n \u0111\u00e3 b\u1ecb x\u00f3a kh\u1ecfi backstack v\u00e0 kh\u00f4ng th\u1ec3 l\u1ea5y l\u1ea1i \u0111\u01b0\u1ee3c. Ch\u1ec9 c\u00f3 th\u1ec3 t\u1ea1o m\u1edbi<\/li>\n
        • Add l\u00e0 th\u00eam m\u1ed9t fragment m\u1edbi \u0111\u00e8 l\u00ean c\u00e1c fragment hi\u1ec7n c\u00f3, c\u00f3 ngh\u0129a l\u00e0 fragment hi\u1ec7n c\u00f3 s\u1ebd ho\u1ea1t \u0111\u1ed9ng v\u00e0 nh\u1eefng fragment \u1edf d\u01b0\u1edbi s\u1ebd r\u01a1i v\u00e0o tr\u1ea1ng th\u00e1i pause. C\u00f3 th\u1ec3 l\u1ea5y l\u1ea1i \u0111\u01b0\u1ee3c fragment c\u0169 khi b\u1ea5m n\u00fat back<\/li>\n<\/ul>\n

          12. Ph\u01b0\u01a1ng th\u1ee9c finalize() l\u00e0 g\u00ec?<\/strong><\/h3>\n

          \u0110\u00e2y l\u00e0 m\u1ed9t ph\u01b0\u01a1ng th\u1ee9c trong l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng, n\u00f3 s\u1ebd t\u1ef1 \u0111\u1ed9ng \u0111\u01b0\u1ee3c g\u1ecdi khi \u0111\u1ed1i t\u01b0\u1ee3ng b\u1ecb h\u1ee7y.<\/p>\n

          \u0110\u00e2y \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ed9t ph\u01b0\u01a1ng t\u1ef1 \u0111\u1ed9ng d\u1ecdn d\u1eb9p c\u00e1c t\u00e0i nguy\u00ean c\u00f3 li\u00ean quan \u0111\u1ebfn \u0111\u1ed1i t\u01b0\u1ee3ng nh\u01b0ng kh\u00f4ng c\u00f2n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng n\u1eefa.\u00a0<\/p>\n

          \u0110\u00e2y l\u00e0 t\u00e1c v\u1ee5 \u0111\u01b0\u1ee3c g\u1ecdi m\u1ed9t c\u00e1ch t\u1ef1 \u0111\u1ed9ng v\u00e0 kh\u00f4ng do ng\u01b0\u1eddi d\u00f9ng ki\u1ec3m so\u00e1t.<\/p>\n

          13. GUI c\u1ee7a Android l\u01b0u tr\u1eef \u1edf \u0111\u00e2u?<\/strong><\/h3>\n

          GUI (Graphical User Interface) ngh\u0129a l\u00e0 \u0111\u1ed3 h\u1ecda giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng. N\u00f3 l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 gi\u00fap c\u00e1c nh\u00e0 l\u1eadp tr\u00ecnh Android m\u00f4 ph\u1ecfng c\u00e1c k\u1ecbch b\u1ea3n c\u1ee5 th\u1ec3 nh\u1ea5t \u0111\u1ecbnh v\u00e0 xem ch\u00fang theo h\u01b0\u1edbng m\u00e0 ng\u01b0\u1eddi d\u00f9ng \u1ee9ng d\u1ee5ng s\u1ebd nh\u00ecn th\u1ea5y.<\/p>\n

          GUI c\u1ee7a Android \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef trong \u201cAndroid SDK\u201d. \u0110\u1ec3 d\u1ec5 d\u00e0ng hi\u1ec3u r\u00f5 v\u1ec1 n\u00f3, h\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng r\u1eb1ng b\u1ea1n \u0111ang d\u1ef1 \u0111\u1ecbnh l\u00e0m vi\u1ec7c \u1edf trong v\u01b0\u1eddn. B\u1ea1n c\u1ea7n th\u1ee9 g\u00ec \u0111\u1ec3 l\u00e0m v\u01b0\u1eddn? \u0110\u00f3 ch\u00ednh l\u00e0 c\u00f4ng c\u1ee5. C\u00e1c c\u00f4ng c\u1ee5 th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef \u1edf \u0111\u00e2u? Ch\u00ednh l\u00e0 nh\u00e0 kho.\u00a0<\/p>\n

          V\u1eady khi h\u1ecdc l\u1eadp tr\u00ecnh Android, Android SDK t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi m\u1ed9t nh\u00e0 kho \u2013\u00a0 l\u01b0u tr\u1eef t\u1ea5t c\u1ea3 c\u00e1c c\u00f4ng c\u1ee5 c\u1ea7n thi\u1ebft \u0111\u1ec3 nh\u00e0 ph\u00e1t tri\u1ec3n truy c\u1eadp d\u1ec5 d\u00e0ng.<\/p>\n

          \u00a014. Li\u1ec7t k\u00ea c\u00e1c l\u1edbp c\u1ea3m bi\u1ebfn Java<\/strong><\/h3>\n

          C\u1ea3m bi\u1ebfn Java tr\u00ean Android g\u1ed3m c\u00f3 4 l\u1edbp, c\u1ee5 th\u1ec3 l\u00e0: Sensor, SensorEvent, SensorEventListener, v\u00e0 SensorManager.<\/p>\n

          15. H\u00ecnh \u1ea3nh .png th\u01b0\u1eddng v\u00e0 h\u00ecnh \u1ea3nh nine-patch kh\u00e1c nhau ra sao?<\/strong><\/h3>\n

          Nine-patch l\u00e0 m\u1ed9t trong nh\u1eefng t\u00e0i nguy\u00ean bitmap c\u00f3 th\u1ec3 thay \u0111\u1ed5i \u0111\u01b0\u1ee3c k\u00edch th\u01b0\u1edbc, ch\u00fang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m h\u00ecnh n\u1ec1n ho\u1eb7c c\u00e1c h\u00ecnh \u1ea3nh kh\u00e1c tr\u00ean thi\u1ebft b\u1ecb.\u00a0<\/p>\n

          L\u1edbp Nine-patch cho ph\u00e9p m\u1edf r\u1ed9ng h\u00ecnh \u1ea3nh theo t\u1eebng m\u00e0n h\u00ecnh kh\u00e1c nhau v\u1edbi 9 c\u00e1ch m\u1edf r\u1ed9ng: 4 g\u00f3c, 4 c\u00e1ch v\u00e0 1 ph\u1ea7n m\u1edf trung t\u00e2m theo t\u1ea5t c\u1ea3 c\u00e1c chi\u1ec1u.<\/p>\n

          \u0110\u01a1n gi\u1ea3n, nine patch l\u00e0 ph\u1ea7n m\u1edf r\u1ed9ng c\u1ee7a png, v\u1edbi \u0111u\u00f4i file l\u00e0 9.png.<\/p>\n

          16. N\u00eau c\u00e1c ph\u01b0\u01a1ng ph\u00e1p l\u01b0u tr\u1eef d\u1eef li\u1ec7u ch\u00ednh<\/strong><\/h3>\n

          N\u1ec1n t\u1ea3ng Android cung c\u1ea5p nhi\u1ec1u t\u00f9y ch\u1ecdn l\u01b0u tr\u1eef d\u1eef li\u1ec7u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng t\u00f9y thu\u1ed9c v\u00e0o nhu c\u1ea7u c\u1ee7a ng\u01b0\u1eddi d\u00f9ng. C\u00e1c t\u00f9y ch\u1ecdn l\u01b0u tr\u1eef l\u00e0:<\/p>\n

            \n
          • SharedPreference: L\u01b0u tr\u1eef d\u1eef li\u1ec7u trong c\u00e1c t\u1ec7p XML<\/li>\n
          • SQLite: L\u01b0u tr\u1eef d\u1eef li\u1ec7u c\u00f3 c\u1ea5u tr\u00fac trong c\u01a1 s\u1edf d\u1eef li\u1ec7u ri\u00eang t\u01b0<\/li>\n
          • B\u1ed9 nh\u1edb trong: L\u01b0u tr\u1eef d\u1eef li\u1ec7u trong h\u1ec7 th\u1ed1ng t\u1ec7p c\u1ee7a thi\u1ebft b\u1ecb, n\u01a1i c\u00e1c \u1ee9ng d\u1ee5ng kh\u00e1c kh\u00f4ng th\u1ec3 \u0111\u1ecdc \u0111\u01b0\u1ee3c d\u1eef li\u1ec7u \u0111\u00f3<\/li>\n
          • B\u1ed9 nh\u1edb ngo\u00e0i: L\u01b0u tr\u1eef d\u1eef li\u1ec7u trong h\u1ec7 th\u1ed1ng t\u1ec7p nh\u01b0ng n\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c truy c\u1eadp v\u00e0o t\u1ea5t c\u1ea3 c\u00e1c \u1ee9ng d\u1ee5ng trong thi\u1ebft b\u1ecb<\/li>\n<\/ul>\n

            17. Adapter l\u00e0 g\u00ec v\u00e0 s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m g\u00ec?<\/strong><\/h3>\n

            Ngu\u1ed3n d\u1eef li\u1ec7u b\u00ean ngo\u00e0i \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi adapterview nh\u1edd s\u1ef1 li\u00ean k\u1ebft c\u1ee7a adapter (b\u1ed9 \u0111i\u1ec1u h\u1ee3p).<\/p>\n

            M\u1ed9t Adapter ch\u1ecbu tr\u00e1ch nhi\u1ec7m chuy\u1ec3n \u0111\u1ed5i t\u1eebng d\u1eef li\u1ec7u nh\u00e0o v\u00e0o th\u00e0nh hi\u1ec3n th\u1ecb, sau \u0111\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u00eam v\u00e0o Adapter (ListView \/ RecyclerView) \u0111\u1ec3 hi\u1ec3n th\u1ecb.<\/p>\n

            18. Bitmap Pooling trong Android l\u00e0 g\u00ec? <\/h3>\n

            Bitmap pooling trong Android l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt m\u00e0 developer \u00e1p d\u1ee5ng \u0111\u1ec3 c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng l\u1ea1i bitmap thay v\u00ec ph\u1ea3i t\u1ea1o c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng bitmap m\u1edbi m\u1ed7i khi c\u1ea7n. Sau khi s\u1eed d\u1ee5ng trong bitmap n\u00e0y, b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1eb7t n\u00f3 l\u1ea1i l\u00ean stack ban \u0111\u1ea7u. <\/p>\n

            N\u1ebfu c\u1ea7n, b\u1ea1n h\u00e3y ki\u1ec3m tra l\u1ea1i trong bitmap stack c\u00f3 s\u1eb5n bitmap n\u00e0o kh\u00f4ng. N\u1ebfu kh\u00f4ng c\u00f3, l\u00fac n\u00e0y b\u1ea1n m\u1edbi c\u1ea7n t\u1ea1o bitmap s\u1eb5n. <\/p>\n

            C\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n Android developer c\u01a1 b\u1ea3n\u00a0<\/strong><\/h2>\n

            18. B\u1ea1n h\u00e3y gi\u1edbi thi\u1ec7u \u0111\u00f4i n\u00e9t v\u1ec1 b\u1ea3n th\u00e2n<\/strong><\/h3>\n
            \n
            \"c\u00e2u
            Gi\u1edbi thi\u1ec7u \u0111i\u1ec3m n\u1ed5i c\u1ee7a b\u1ea3n th\u00e2n v\u00e0 kinh nghi\u1ec7m l\u00e0m vi\u1ec7c gi\u00fap t\u1ea1o \u1ea5n t\u01b0\u1ee3ng hi\u1ec7u qu\u1ea3<\/em><\/figcaption><\/figure>\n<\/div>\n

            Trong b\u1ea5t k\u1ef3 bu\u1ed5i ph\u1ecfng v\u1ea5n n\u00e0o \u1edf m\u1ecdi v\u1ecb tr\u00ed c\u00f4ng vi\u1ec7c, y\u00eau c\u1ea7u v\u1ec1 vi\u1ec7c gi\u1edbi thi\u1ec7u \u0111\u00f4i n\u00e9t v\u1ec1 b\u1ea3n th\u00e2n lu\u00f4n l\u00e0 m\u1ed9t c\u00e2u h\u1ecfi b\u1eaft bu\u1ed9c v\u00e0 c\u01a1 b\u1ea3n nh\u1ea5t.\u00a0<\/p>\n

            C\u00e1c nh\u00e0 tuy\u1ec3n d\u1ee5ng s\u1ebd s\u1eed d\u1ee5ng c\u00e2u h\u1ecfi n\u00e0y \u0111\u1ec3 b\u1eaft \u0111\u1ea7u bu\u1ed5i ph\u1ecfng v\u1ea5n v\u00e0 b\u1eaft \u0111\u1ea7u t\u00ecm hi\u1ec3u xem \u1ee9ng vi\u00ean c\u00f3 ph\u00f9 h\u1ee3p hay kh\u00f4ng th\u00f4ng qua c\u00e1ch tr\u00ecnh b\u00e0y v\u00e0 phong th\u00e1i.<\/p>\n

            Th\u1ebf n\u00ean, khi \u0111\u1ed1i m\u1eb7t c\u00e2u h\u1ecfi n\u00e0y, b\u1ea1n c\u1ea7n nh\u1edb h\u00e3y tr\u00ecnh b\u00e0y r\u00f5 r\u00e0ng, m\u1ea1ch l\u1ea1c v\u00e0 \u0111\u01b0a ra nh\u1eefng th\u00f4ng tin kh\u00e1i qu\u00e1t v\u1ec1 b\u1ea3n th\u00e2n, nh\u01b0ng c\u1ea7n l\u01b0u \u00fd \u0111\u00f3 ph\u1ea3i l\u00e0 nh\u1eefng th\u00f4ng tin h\u1eefu \u00edch cho nh\u00e0 tuy\u1ec3n d\u1ee5ng.<\/p>\n

            \u0110\u1eebng \u0111i qu\u00e1 s\u00e2u v\u00e0o nh\u1eefng th\u1ee9 nh\u01b0 th\u00f3i quen, s\u1edf th\u00edch hay nh\u1eefng kinh nghi\u1ec7m l\u00e0m vi\u1ec7c kh\u00f4ng li\u00ean quan \u0111\u1ebfn v\u1ecb tr\u00ed m\u00e0 b\u1ea1n \u0111ang \u1ee9ng tuy\u1ec3n.\u00a0<\/p>\n

            Ngo\u00e0i m\u1ed9t v\u00e0i th\u00f4ng tin c\u01a1 b\u1ea3n nh\u01b0 t\u00ean, tu\u1ed5i, ng\u00e0nh h\u1ecdc, h\u00e3y n\u00f3i v\u1ec1 nh\u1eefng t\u1ed1 ch\u1ea5t, kinh nghi\u1ec7m, b\u1eb1ng c\u1ea5p, v.v., m\u00e0 b\u1ea1n c\u00f3 khi\u1ebfn cho b\u1ea1n ph\u00f9 h\u1ee3p v\u1edbi v\u1ecb tr\u00ed m\u00e0 m\u00ecnh \u1ee9ng tuy\u1ec3n.<\/p>\n

            Ngo\u00e0i ra, b\u1ea1n c\u0169ng c\u00f3 th\u1ec3 n\u00f3i s\u01a1 v\u1ec1 l\u1ed9 tr\u00ecnh c\u00f4ng vi\u1ec7c m\u00e0 b\u1ea1n \u0111ang h\u01b0\u1edbng \u0111\u1ebfn. H\u00e3y tr\u00ecnh b\u00e0y t\u1ea5t c\u1ea3 theo tr\u00ecnh t\u1ef1 th\u1eddi gian, logic r\u00f5 r\u00e0ng v\u00e0 t\u1ed1t nh\u1ea5t ch\u1ec9 g\u00f3i g\u1ecdn trong kho\u1ea3ng t\u1eeb 1,5 \u0111\u1ebfn 2 ph\u00fat m\u00e0 th\u00f4i.\u00a0\u00a0<\/p>\n

            19. Cho ch\u00fang t\u00f4i l\u00fd do \u0111\u1ec3 ch\u1ecdn b\u1ea1n<\/strong><\/h3>\n
            \n
            \"nh\u1eefng
            C\u00e2u h\u1ecfi hi\u1ec7u qu\u1ea3 \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh \u1ee9ng vi\u00ean ph\u00f9 h\u1ee3p<\/em><\/figcaption><\/figure>\n<\/div>\n

            C\u00e2u h\u1ecfi n\u00e0y gi\u00fap nh\u00e0 tuy\u1ec3n d\u1ee5ng bi\u1ebft \u0111\u01b0\u1ee3c c\u00e1ch b\u1ea1n hi\u1ec3u v\u00e0 \u0111\u1ecbnh v\u1ecb n\u0103ng l\u1ef1c c\u1ee7a b\u1ea3n th\u00e2n c\u0169ng nh\u01b0 s\u1ef1 t\u00ecm t\u00f2i v\u00e0 m\u1ee9c \u0111\u1ed9 hi\u1ec3u bi\u1ebft c\u1ee7a b\u1ea1n \u0111\u1ed1i v\u1edbi v\u1ecb tr\u00ed c\u00f4ng vi\u1ec7c v\u00e0 c\u00f4ng ty m\u00e0 b\u1ea1n \u0111ang \u1ee9ng tuy\u1ec3n.\u00a0<\/p>\n

            C\u1ea3 hai y\u1ebfu t\u1ed1 n\u00e0y \u0111\u1ec1u v\u00f4 c\u00f9ng quan tr\u1ecdng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh xem b\u1ea1n c\u00f3 th\u1ef1c s\u1ef1 l\u00e0 \u1ee9ng vi\u00ean ph\u00f9 h\u1ee3p v\u1edbi h\u1ecd hay kh\u00f4ng. V\u00e0 n\u1ebfu b\u1ea1n \u0111\u01b0\u1ee3c ch\u1ecdn, b\u1ea1n c\u00f3 th\u1ec3 \u0111em l\u1ea1i \u0111\u00f3ng g\u00f3p g\u00ec cho c\u00f4ng ty.<\/p>\n

            M\u1eb9o \u0111\u1ec3 tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi n\u00e0y l\u00e0 b\u1ea1n ph\u1ea3i tr\u00ecnh b\u00e0y \u0111\u1ea7y \u0111\u1ee7 \u0111\u01b0\u1ee3c hai v\u1ea5n \u0111\u1ec1 v\u1eeba n\u00eau tr\u00ean. H\u00e3y tr\u1ea3 l\u1eddi b\u1eb1ng c\u00e1ch l\u1ed3ng gh\u00e9p hai n\u1ed9i dung theo d\u1ea1ng:\u00a0<\/p>\n

            V\u00ec v\u1ecb tr\u00ed n\u00e0y c\u00f3 \u0111\u1eb7c th\u00f9 l\u00e0 X, \u0111\u00f2i h\u1ecfi nh\u1eefng t\u1ed1 ch\u1ea5t\/n\u0103ng l\u1ef1c\/ki\u1ebfn th\u1ee9c Y, th\u1ebf n\u00ean v\u1edbi Z m\u00e0 t\u00f4i c\u00f3, t\u00f4i c\u00f3 th\u1ec3 \u0111\u1ea3m nh\u1eadn v\u00e0 ho\u00e0n th\u00e0nh t\u1ed1t c\u00f4ng vi\u1ec7c \u0111\u01b0\u1ee3c giao.<\/p>\n

            Ho\u1eb7c, t\u00f4i c\u00f3 th\u1ebf m\u1ea1nh v\u1ec1 Z, th\u1ebf n\u00ean t\u00f4i c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng c\u00e1c c\u00f4ng vi\u1ec7c \u0111\u00f2i h\u1ecfi Y nh\u01b0 v\u1ecb tr\u00ed v\u00e0 c\u00f4ng ty \u0111ang t\u00ecm ki\u1ebfm.<\/p>\n

            Nh\u01b0ng \u0111\u1ec3 c\u00f3 th\u1ec3 tr\u1ea3 l\u1eddi ho\u00e0n h\u1ea3o cho c\u00e2u h\u1ecfi n\u00e0y, t\u1ed1t nh\u1ea5t b\u1ea1n n\u00ean c\u00f3 s\u1ef1 t\u00ecm hi\u1ec3u k\u1ef9 c\u00e0ng v\u1ec1 v\u1ecb tr\u00ed c\u00f4ng vi\u1ec7c c\u0169ng nh\u01b0 c\u00e1c th\u00f4ng tin li\u00ean quan \u0111\u1ebfn c\u00f4ng ty nh\u01b0: l\u0129nh v\u1ef1c ho\u1ea1t \u0111\u1ed9ng, th\u1ebf m\u1ea1nh, \u0111i\u1ec3m y\u1ebfu c\u0169ng nh\u01b0 v\u0103n h\u00f3a c\u1ee7a c\u00f4ng ty. Sau \u0111\u00f3 x\u00e1c \u0111\u1ecbnh xem n\u0103ng l\u1ef1c, t\u00ednh c\u00e1ch, m\u1ee5c ti\u00eau c\u1ee7a b\u1ea3n th\u00e2n c\u00f3 th\u00edch h\u1ee3p hay kh\u00f4ng.<\/p>\n

            H\u00e3y bi\u1ebft gi\u1eef s\u1ef1 v\u1eeba \u0111\u1ee7, vi\u1ec7c ph\u00f3ng \u0111\u1ea1i v\u00e0 c\u1ed1 g\u1eafng th\u1ec3 hi\u1ec7n b\u1ea3n th\u00e2n ho\u00e0n m\u1ef9 c\u00f3 th\u1ec3 s\u1ebd ho\u00e0n to\u00e0n ph\u1ea3n t\u00e1c d\u1ee5ng. B\u1ea1n kh\u00f4ng c\u1ea7n ph\u1ea3i l\u00e0 ng\u01b0\u1eddi ho\u00e0n h\u1ea3o nh\u1ea5t, nh\u1eefng hay \u0111\u1ec3 cho h\u1ecd bi\u1ebft b\u1ea1n l\u00e0 ng\u01b0\u1eddi ph\u00f9 h\u1ee3p nh\u1ea5t.<\/p>\n

            20. B\u1ea1n c\u00f3 v\u1ea5n \u0111\u1ec1 n\u00e0o c\u1ea7n ch\u00fang t\u00f4i gi\u1ea3i \u0111\u00e1p kh\u00f4ng?<\/strong><\/h3>\n
            \n
            \"c\u00e1c
            \u0110\u1eb7t c\u00e2u h\u1ecfi \u0111\u00fang tr\u1ecdng t\u00e2m s\u1ebd tr\u1edf th\u00e0nh \u0111i\u1ec3m c\u1ed9ng trong m\u1eaft nh\u00e0 tuy\u1ec3n d\u1ee5ng<\/em><\/figcaption><\/figure>\n<\/div>\n

            \u0110\u00e2y c\u0169ng l\u00e0 m\u1ed9t c\u00e2u h\u1ecfi r\u1ea5t ph\u1ed5 bi\u1ebfn trong c\u00e1c bu\u1ed5i ph\u1ecfng v\u1ea5n v\u00e0 th\u01b0\u1eddng l\u00e0 \u0111i\u1ec3m m\u00e0 nhi\u1ec1u ng\u01b0\u1eddi th\u01b0\u1eddng m\u1eafc sai l\u1ea7m khi tr\u1ea3 l\u1eddi. D\u0129 nhi\u00ean, \u1edf \u0111\u00e2y kh\u00f4ng c\u00f3 m\u1ed9t m\u00f4 th\u1ee9c c\u1ee5 th\u1ec3, nh\u01b0ng nh\u00ecn chung, t\u1ed1t h\u01a1n n\u1ebfu b\u1ea1n \u0111\u1eb7t \u0111\u01b0\u1ee3c nh\u1eefng c\u00e2u h\u1ecfi c\u00f3 \u00fd ngh\u0129a.\u00a0<\/p>\n

            Vi\u1ec7c \u0111\u01b0a ra c\u00e1c v\u1ea5n \u0111\u1ec1 s\u1ebd cho nh\u00e0 tuy\u1ec3n d\u1ee5ng th\u1ea5y b\u1ea1n th\u1ef1c s\u1ef1 quan t\u00e2m v\u00e0 c\u00f3 mong mu\u1ed1n \u0111\u01b0\u1ee3c l\u00e0m vi\u1ec7c t\u1ea1i c\u00f4ng ty n\u00e0y. Kh\u00f4ng ch\u1ec9 v\u1eady, n\u00f3 c\u00f2n cho th\u1ea5y s\u1ef1 t\u1ec9 m\u1ec9 v\u00e0 c\u1ea9n th\u1eadn c\u1ee7a b\u1ea1n, b\u1ea1n th\u1eadn tr\u1ecdng v\u1edbi c\u00f4ng vi\u1ec7c m\u00e0 m\u00ecnh mu\u1ed1n l\u00e0m v\u00e0 b\u1ea1n c\u0169ng hi\u1ec3u \u0111\u01b0\u1ee3c gi\u00e1 tr\u1ecb c\u1ee7a b\u1ea3n th\u00e2n.<\/p>\n

            \u0110\u1eebng qu\u00ean r\u1eb1ng, m\u1ed9t bu\u1ed5i ph\u1ecfng v\u1ea5n \u0111\u00fang ngh\u0129a kh\u00f4ng ph\u1ea3i l\u00e0 s\u1ef1 \u0111\u01a1n ph\u01b0\u01a1ng ki\u1ec3m tra t\u1eeb ph\u00eda nh\u00e0 tuy\u1ec3n d\u1ee5ng. C\u00f9ng v\u1edbi vi\u1ec7c h\u1ecd t\u00ecm ki\u1ebfm \u1ee9ng vi\u00ean ph\u00f9 h\u1ee3p th\u00ec b\u1ea1n c\u0169ng \u0111ang t\u00ecm ki\u1ebfm cho m\u00ecnh m\u1ed9t c\u00f4ng vi\u1ec7c ph\u00f9 h\u1ee3p, th\u1ebf n\u00ean b\u1ea1n ho\u00e0n to\u00e0n c\u00f3 quy\u1ec1n \u0111\u1eb7t v\u1ea5n \u0111\u1ec1 \u0111\u1ec3 nh\u00e0 tuy\u1ec3n d\u1ee5ng gi\u1ea3i \u0111\u00e1p.\u00a0<\/p>\n

            Nh\u01b0ng h\u00e3y \u0111\u1eb7t nh\u1eefng c\u00e2u h\u1ecfi c\u00f3 \u00fd ngh\u0129a, \u0111\u01b0a ra nh\u1eefng v\u1ea5n \u0111\u1ec1 m\u00e0 cu\u1ed9c ph\u1ecfng v\u1ea5n v\u00e0 c\u00e1c th\u00f4ng tin tr\u00ean m\u1ea1ng kh\u00f4ng c\u00f3, n\u1ebfu kh\u00f4ng b\u1ea1n kh\u00f4ng nh\u1eefng kh\u00f4ng ghi th\u00eam \u0111i\u1ec3m m\u00e0 c\u00f2n khi\u1ebfn nh\u00e0 tuy\u1ec3n d\u1ee5ng c\u1ea3m th\u1ea5y b\u1ea1n \u0111ang c\u1ed1 \u0111\u1ea5m \u0103n x\u00f4i v\u00e0 thi\u1ebfu s\u1ef1 \u0111\u1ea7u t\u01b0 t\u00ecm hi\u1ec3u n\u1eefa \u0111\u1ea5y.<\/p>\n

            K\u1ebft lu\u1eadn<\/strong>\u00a0<\/p>\n

            V\u00e0 tr\u00ean \u0111\u00e2y Masterskills \u0111\u00e3 chia s\u1ebb top c\u00e1c c\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n android<\/strong> developer th\u01b0\u1eddng g\u1eb7p c\u0169ng nh\u01b0 c\u00e1ch \u0111\u1ec3 tr\u1ea3 l\u1eddi ch\u00fang m\u1ed9t c\u00e1ch th\u1eadt ho\u00e0n h\u1ea3o \u0111\u1ec3 g\u00e2y \u1ea5n t\u01b0\u1ee3ng v\u1edbi nh\u00e0 tuy\u1ec3n d\u1ee5ng. Ch\u00fac m\u00ecnh hi v\u1ecdng b\u00e0i vi\u1ebft n\u00e0y s\u1ebd c\u00f3 \u00edch tr\u00ean con \u0111\u01b0\u1eddng t\u00ecm ki\u1ebfm c\u00f4ng vi\u1ec7c c\u1ee7a b\u1ea1n.<\/p>\n

            C\u00f2n n\u1ebfu b\u1ea1n v\u1eabn \u0111ang t\u00ecm ki\u1ebfm cho m\u00ecnh m\u1ed9t c\u01a1 h\u1ed9i trong ngh\u1ec1 Android developer, \u0111\u1eebng ch\u1ea7n ch\u1eeb m\u00e0 h\u00e3y truy c\u1eadp ngay website c\u1ee7a Masterskills Vi\u1ec7t Nam.<\/p>\n

            Ch\u00fang m\u00ecnh lu\u00f4n c\u00f3 s\u1eb5n h\u00e0ng tr\u0103m v\u1ecb tr\u00ed h\u1ea5p d\u1eabn \u0111\u1ebfn t\u1eeb c\u00e1c nh\u00e0 tuy\u1ec3n d\u1ee5ng h\u00e0ng \u0111\u1ea7u, lu\u00f4n \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt m\u1edbi li\u00ean t\u1ee5c \u0111ang ch\u1edd \u0111\u1ee3i b\u1ea1n \u0111\u1ea5y.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

            Trong th\u1ebf gi\u1edbi hi\u1ec7n \u0111\u1ea1i, c\u00e1c thi\u1ebft b\u1ecb di \u0111\u1ed9ng th\u00f4ng minh \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t v\u1eadt d\u1ee5ng quan tr\u1ecdng v\u00e0 c\u01a1 b\u1ea3n trong cu\u1ed9c s\u1ed1ng c\u1ee7a m\u1ed7i ng\u01b0\u1eddi.\u00a0 V\u00ec th\u1ebf vi\u1ec7c ph\u00e1t tri\u1ec3n c\u00e1c h\u1ec7 \u0111i\u1ec1u h\u00e0nh d\u00e0nh ri\u00eang cho thi\u1ebft b\u1ecb di \u0111\u1ed9ng tr\u1edf th\u00e0nh m\u1ed9t ng\u00e0nh ngh\u1ec1 c\u00f3 nhu c\u1ea7u cao tr\u00ean […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[181],"tags":[],"_links":{"self":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/posts\/50518"}],"collection":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/comments?post=50518"}],"version-history":[{"count":0,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/posts\/50518\/revisions"}],"wp:attachment":[{"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/media?parent=50518"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/categories?post=50518"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/masterskills.org\/blog\/wp-json\/wp\/v2\/tags?post=50518"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}