Question

我尝试使用Environment.getExternalStorageDirectory（）。getAbsolutePath（）来获取SD路径，结果是/ storage / sdcard0。但我的SD卡是/ storage / sdcard1。如何获得真正的SD卡路径？

我可以在“/”中看到有一个名为/ ext_sd的符号链接链接到/ storage / sdcard1。这个符号链接在所有设备中？

Answer 1

我在这篇文章中找到了解决方案：How can I get external SD card path for Android 4.0+?

/**
 * 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;
}

Answer 2

试试这个，

  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();
                }

在这里，你可以获得你的SD卡路径。我希望它能帮助你并很快解决你的问题。

Environment.getExternalStorageDirectory（）。getAbsolutePath（）返回sdcard0但我在SD卡中有SD

2 个答案: