3个Activity跳转和数据传输

多个Activity跳转的小结,A跳转到B，B跳转到C,C跳转到B，B跳转到A,并且相互之间传递数据。

/** Automatically generated file. DO NOT MODIFY */
package com.example.viewgroupdemo;

public final class BuildConfig {
    public final static boolean DEBUG = true;
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2015-05-19 20:29  ViewGrouptwo\
     文件         475  2015-05-19 10:44  ViewGrouptwo\.classpath
     文件         848  2015-05-19 19:37  ViewGrouptwo\.project
     目录           0  2015-05-19 20:29  ViewGrouptwo\.settings\
     文件         177  2015-05-19 10:44  ViewGrouptwo\.settings\org.eclipse.jdt.core.prefs
     文件        1027  2015-05-19 20:22  ViewGrouptwo\AndroidManifest.xml
     目录           0  2015-05-19 10:44  ViewGrouptwo\assets\
     目录           0  2015-05-19 20:29  ViewGrouptwo\bin\
     文件        1027  2015-05-19 20:22  ViewGrouptwo\bin\AndroidManifest.xml
     目录           0  2015-05-19 20:29  ViewGrouptwo\bin\classes\
     文件      692044  2015-05-19 20:21  ViewGrouptwo\bin\classes.dex
     目录           0  2015-05-19 20:29  ViewGrouptwo\bin\classes\com\
     目录           0  2015-05-19 20:29  ViewGrouptwo\bin\classes\com\example\
     目录           0  2015-05-19 20:29  ViewGrouptwo\bin\classes\com\example\viewgroupdemo\
     文件        1128  2015-05-19 20:26  ViewGrouptwo\bin\classes\com\example\viewgroupdemo\A$1.class
     文件        1631  2015-05-19 20:26  ViewGrouptwo\bin\classes\com\example\viewgroupdemo\A.class
     文件        1496  2015-05-19 20:26  ViewGrouptwo\bin\classes\com\example\viewgroupdemo\B$1.class
     文件        1418  2015-05-19 20:26  ViewGrouptwo\bin\classes\com\example\viewgroupdemo\B$2.class
     文件        1991  2015-05-19 20:26  ViewGrouptwo\bin\classes\com\example\viewgroupdemo\B.class
     文件         359  2015-05-19 19:37  ViewGrouptwo\bin\classes\com\example\viewgroupdemo\BuildConfig.class
     文件        1445  2015-05-19 20:26  ViewGrouptwo\bin\classes\com\example\viewgroupdemo\C$1.class
     文件        1449  2015-05-19 20:26  ViewGrouptwo\bin\classes\com\example\viewgroupdemo\C.class
     文件         361  2015-05-19 20:22  ViewGrouptwo\bin\classes\com\example\viewgroupdemo\R$attr.class
     文件         482  2015-05-19 20:22  ViewGrouptwo\bin\classes\com\example\viewgroupdemo\R$dimen.class
     文件         428  2015-05-19 20:22  ViewGrouptwo\bin\classes\com\example\viewgroupdemo\R$drawable.class
     文件         890  2015-05-19 20:22  ViewGrouptwo\bin\classes\com\example\viewgroupdemo\R$id.class
     文件         483  2015-05-19 20:22  ViewGrouptwo\bin\classes\com\example\viewgroupdemo\R$layout.class
     文件         409  2015-05-19 20:22  ViewGrouptwo\bin\classes\com\example\viewgroupdemo\R$menu.class
     文件         493  2015-05-19 20:22  ViewGrouptwo\bin\classes\com\example\viewgroupdemo\R$string.class
     文件         452  2015-05-19 20:22  ViewGrouptwo\bin\classes\com\example\viewgroupdemo\R$style.class
     文件         743  2015-05-19 20:22  ViewGrouptwo\bin\classes\com\example\viewgroupdemo\R.class
............此处省略64个文件信息