时间：2021-02-12 08:50:14 | 栏目：Android代码 | 点击：次
我们知道Android上一般都有外置的存储卡,
但是通过Environment.getExternalStorageDirectory()获取的是内置的存储卡位置 (也有的手机可以在系统中修改默认存储) 那么如何获取外置存储卡的位置呢?
我们可以通过StorageManager来获取多个外置sdcard，代码如下：
StorageManager storageManager = (StorageManager) cxt.getSystemService(Context.STORAGE_SERVICE);
try {
Method method = StorageManager.class.getDeclaredMethod("getVolumePaths");
method.setAccessible(true);
Object result = method.invoke(storageManager);
if (result != null && result instanceof String[]) {
String[] pathes = (String[]) result;
StatFs statFs;
for (String path : pathes) {
if (!TextUtils.isEmpty(path) && new File(path).exists()) {
statFs = new StatFs(path);
if (statFs.getBlockCount() * statFs.getBlockSize() != 0) {
pathsList.add(path);
}
}
}
}
} catch (Exception e) {
e.printStackTrace();
File externalFolder = Environment.getExternalStorageDirectory();
if (externalFolder != null) {
pathsList.add(externalFolder.getAbsolutePath());
}
}
}
return pathsList.toArray(new String[pathsList.size()]);