pyjnius下載 - pyjnius原始碼下載

pyjnius

JAVA源碼

1.6.1

下載

皮尼烏斯

PyJNIus 是一個 Python 函式庫，用於使用 Java 本機介面 (JNI) 存取 Java 類別。

PyJNIus 由 Kivy 團隊管理，可以與 python-for-android 一起使用。

它還可以獨立於 Kivy 在桌面和行動平台上使用。

警告

PyPI 套件名稱現在是 pyjnius 而不是jnius 。

安裝

 pip install pyjnius

快速概覽

    > >> from jnius import autoclass
    > >> autoclass ( 'java.lang.System' ). out . println ( 'Hello world' )
    Hello world
    
    >> > Stack = autoclass ( 'java.util.Stack' )
    > >> stack = Stack ()
    > >> stack . push ( 'hello' )
    > >> stack . push ( 'world' )
    > >> print ( stack . pop ())
    world
    > >> print ( stack . pop ())
    hello

與 python-for-android 一起使用

取得適用於 Android 的 python
使用kivy編譯發行版（PyJNIus會自動新增）

然後，你可以做這樣的事情：

 from time import sleep
from jnius import autoclass

Hardware = autoclass ( 'org.renpy.android.Hardware' )
print ( 'DPI is' , Hardware . getDPI ())

Hardware . accelerometerEnable ( True )
for x in range ( 20 ):
    print ( Hardware . accelerometerReading ())
    sleep ( 0.1 )

它會輸出類似以下內容：

 I/python  ( 5983): Android kivy bootstrap done. __name__ is __main__
I/python  ( 5983): Run user program, change dir and execute main.py
I/python  ( 5983): DPI is 160
I/python  ( 5983): [0.0, 0.0, 0.0]
I/python  ( 5983): [-0.0095768067985773087, 9.3852710723876953, 2.2218191623687744]
I/python  ( 5983): [-0.0095768067985773087, 9.3948478698730469, 2.2218191623687744]
I/python  ( 5983): [-0.0095768067985773087, 9.3948478698730469, 2.2026655673980713]
I/python  ( 5983): [-0.028730420395731926, 9.4044246673583984, 2.2122423648834229]
I/python  ( 5983): [-0.019153613597154617, 9.3852710723876953, 2.2026655673980713]
I/python  ( 5983): [-0.028730420395731926, 9.3852710723876953, 2.2122423648834229]
I/python  ( 5983): [-0.0095768067985773087, 9.3852710723876953, 2.1835119724273682]
I/python  ( 5983): [-0.0095768067985773087, 9.3756942749023438, 2.1835119724273682]
I/python  ( 5983): [0.019153613597154617, 9.3948478698730469, 2.2122423648834229]
I/python  ( 5983): [0.038307227194309235, 9.3852710723876953, 2.2218191623687744]
I/python  ( 5983): [-0.028730420395731926, 9.3948478698730469, 2.2026655673980713]
I/python  ( 5983): [-0.028730420395731926, 9.3852710723876953, 2.2122423648834229]
I/python  ( 5983): [-0.038307227194309235, 9.3756942749023438, 2.2026655673980713]
I/python  ( 5983): [0.3926490843296051, 9.3086557388305664, 1.3311761617660522]
I/python  ( 5983): [-0.10534487664699554, 9.4331550598144531, 2.1068975925445557]
I/python  ( 5983): [0.26815059781074524, 9.3469638824462891, 2.3463177680969238]
I/python  ( 5983): [-0.1149216815829277, 9.3852710723876953, 2.31758713722229]
I/python  ( 5983): [-0.038307227194309235, 9.41400146484375, 1.8674772977828979]
I/python  ( 5983): [0.13407529890537262, 9.4235782623291016, 2.2026655673980713]

進階範例

當您使用autoclass時，它將發現該類別的所有方法和欄位並解析它們。您可能只想聲明和使用您需要的內容。前面的範例可以手動完成，如下所示：

 from time import sleep
from jnius import MetaJavaClass , JavaClass , JavaMethod , JavaStaticMethod

class Hardware ( JavaClass ):
    __metaclass__ = MetaJavaClass
    __javaclass__ = 'org/renpy/android/Hardware'
    vibrate = JavaStaticMethod ( '(D)V' )
    accelerometerEnable = JavaStaticMethod ( '(Z)V' )
    accelerometerReading = JavaStaticMethod ( '()[F' )
    getDPI = JavaStaticMethod ( '()I' )

# use that new class!
print ( 'DPI is' , Hardware . getDPI ())

Hardware . accelerometerEnable ()
for x in range ( 20 ):
    print ( Hardware . accelerometerReading ())
    sleep ( 0.1 )

您可以使用JavaMethod和JavaMultipleMethod的signatures方法來檢查物件方法的發現簽名

 > >> String = autoclass ( 'java.lang.String' )
> >> dir ( String )
[ 'CASE_INSENSITIVE_ORDER' , '__class__' , '_JavaClass__cls_storage' , '__delattr__' , '__dict__' , '__dir__' , '__doc__' , '__eq__' , '__format__' , '__ge__' , '__getattribute__' , '__gt__' , '__hash__' , '__init__' , '__init_subclass__' , '__javaclass__' , '__javaconstructor__' , '__le__' , '__lt__' , '__module__' , '__ne__' , '__new__' , '__pyx_vtable__' , '__reduce__' , '__reduce_ex__' , '__repr__' , '__setattr__' , '__setstate__' , '__sizeof__' , '__str__' , '__subclasshook__' , '__weakref__' , 'charAt' , 'checkBounds' , 'clone' , 'codePointAt' , 'codePointBefore' , 'codePointCount' , 'compareTo' , 'compareToIgnoreCase' , 'concat' , 'contains' , 'contentEquals' , 'copyValueOf' , 'empty' , 'endsWith' , 'equals' , 'equalsIgnoreCase' , 'finalize' , 'format' , 'getBytes' , 'getChars' , 'getClass' , 'hashCode' , 'indexOf' , 'indexOfSupplementary' , 'intern' , 'isEmpty' , 'join' , 'lastIndexOf' , 'lastIndexOfSupplementary' , 'length' , 'matches' , 'nonSyncContentEquals' , 'notify' , 'notifyAll' , 'offsetByCodePoints' , 'regionMatches' , 'registerNatives' , 'replace' , 'replaceAll' , 'replaceFirst' , 'split' , 'startsWith' , 'subSequence' , 'substring' , 'toCharArray' , 'toLowerCase' , 'toString' , 'toUpperCase' , 'trim' , 'valueOf' , 'wait' ]
> >> String . format . signatures ()
[([ 'java/util/Locale' , 'java/lang/String' , 'java/lang/Object...' ], 'java/lang/String' ), ([ 'java/lang/String' , 'java/lang/Object...' ], 'java/lang/String' )]