android 获取系统默认路径

http://blog.csdn.net/zhengdan66/article/details/8930252

android 获取系统默认路径

Environment.getDataDirectory().getPath()
: /data

Environment.getDownloadCacheDirectory().getPath()  : /cache

Environment.getExternalStorageDirectory().getPath(): /mnt/sdcard

Environment.getRootDirectory().getPath()           : /system

Context.getCacheDir().getPath()                    : /data/data/com.zhd/cache

Context.getExternalCacheDir().getPath()            : /mnt/sdcard/Android/data/com.zhd/cache

Context.getFilesDir().getPath()                    : /data/data/com.zhd/files

Context.getObbDir().getPath()                      : /mnt/sdcard/Android/obb/com.zhd

Context.getPackageName()                           : com.zhd

Context.getPackageCodePath()                       : /data/app/com.zhd-1.apk

Context.getPackageResourcePath()                   : /data/app/com.zhd-1.apk

// 获取当前程序路径 

   getApplicationContext().getFilesDir().getAbsolutePath();

// 
获取该程序的安装包路径
 
String path=getApplicationContext().getPackageResourcePath();
// 
获取程序默认数据库路径
 
getApplicationContext().getDatabasePath(s).getAbsolutePath();