(The latest android 4.0 design standard gives priority to the introduction of the top ten changes. After reading and translating the design guidance of Android design, we summarized the top ten changes of Android 4.0 design by referring to the app design guidance of Android 4.0, Android 2.3 and earlier versions... For the original English version, see developer.android/design/index.htmlThe full text translation of android design was produced by the CDCD3 multimedia group (Jiang Ning, Zhang Yun).
Android Design 4 (Translation). pdf)