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[英]Android devices with Environment.getExternalStorageDirectory() != /mnt/sdcard/?
[英]Environment.getExternalStorageDirectory().getAbsolutePath() return sdcard0 but I have my SD in sdcard1
我嘗試使用Environment.getExternalStorageDirectory()。getAbsolutePath()將一些內容寫入SD卡電話內存,以獲取SD路徑,結果為/ storage / sdcard0。 但是我的SD卡是/ storage / sdcard1。 如何獲得真實的SD卡路徑?
我可以在“ /”中看到一個名為/ ext_sd的符號鏈接,鏈接到/ storage / sdcard1。 此符號鏈接是否存在於所有設備中?
我在這篇文章中找到了解決方案: 如何獲取Android 4.0+的外部SD卡路徑?
/**
* Returns the list of external devices mounted.
*
* @return HashSet<String>.
*/
public static HashSet<String> getExternalMounts() {
final HashSet<String> out = new HashSet<String>();
String reg = "(?i).*vold.*(vfat|ntfs|exfat|fat32|ext3|ext4).*rw.*";
String s = "";
try {
final Process process = new ProcessBuilder().command("mount")
.redirectErrorStream(true).start();
process.waitFor();
final InputStream is = process.getInputStream();
final byte[] buffer = new byte[1024];
while (is.read(buffer) != -1) {
s = s + new String(buffer);
}
is.close();
} catch (final Exception e) {
e.printStackTrace();
}
// parse output
final String[] lines = s.split("\n");
for (String line : lines) {
if (!line.toLowerCase(Locale.US).contains("asec")) {
if (line.matches(reg)) {
String[] parts = line.split(" ");
for (String part : parts) {
if (part.startsWith("/"))
if (!part.toLowerCase(Locale.US).contains("vold"))
out.add(part);
}
}
}
}
return out;
}
嘗試這個,
File filepath = Environment.getExternalStorageDirectory();
File dir = new File(filepath.getAbsolutePath()
+ "/Save PIP/");
dir.mkdirs();
File file = new File(dir, System.currentTimeMillis() + ".jpg");
// Utils.showAlert("Image Saved to SD Card", "PIP Effect", "Ok", FrameActivity.this);
if (file.exists()) file.delete();
try {
output = new FileOutputStream(file);
bitmap_final.compress(Bitmap.CompressFormat.PNG, 100, output);
output.flush();
output.close();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
在這里,您可以獲取SD卡的路徑。希望它能幫助您和您盡快解決問題。
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