状态

		
Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED);		
		
		

绝对路径

		
Environment.getExternalStorageDirectory().getAbsolutePath();		
		
		

		
Log.i("Environment", "getExternalStorageDirectory(): " + Environment.getExternalStorageDirectory().toString());

Log.i("Environment","getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES): " + Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES).toString());				
		
		

		
Log.i("Environment", "getDownloadCacheDirectory(): "+ Environment.getDownloadCacheDirectory().toString());		
		
		

			
Log.i("Environment", "getRootDirectory(): " + Environment.getRootDirectory().toString());
Log.i("Environment", "getDataDirectory(): " + Environment.getDataDirectory().toString());