将捕获的图像保存在SDcard Android Studio上

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
    // SD卡可用
} else {
    // SD卡不可用
}

File storageDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
File imageFile = new File(storageDir, "image.jpg");

// 假设你已经有了一个捕获的图像的Bitmap对象
try {
    FileOutputStream outputStream = new FileOutputStream(imageFile);
    bitmap.compress(Bitmap.CompressFormat.JPEG, 100, outputStream);
    outputStream.flush();
    outputStream.close();
} catch (IOException e) {
    e.printStackTrace();
}

Intent mediaScanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
Uri contentUri = Uri.fromFile(imageFile);
mediaScanIntent.setData(contentUri);
sendBroadcast(mediaScanIntent);