Android一鍵跳轉到獲取應用通知權限，4.4以上及4.4以下解決方案，獲取通知權限

Android4.4以上：

//判斷應用是否開啓了通知權限 4.4以上可用，4.4以下默認返回true
        NotificationManagerCompat manager = NotificationManagerCompat.from(MainActivity.this);
        boolean isOpened = manager.areNotificationsEnabled();

 if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
                        Intent intent = new Intent();
                        intent.setAction("android.settings.APP_NOTIFICATION_SETTINGS");
                        intent.putExtra("app_package", getPackageName());
                        intent.putExtra("app_uid", getApplicationInfo().uid);
                        startActivity(intent);
                    } else if (android.os.Build.VERSION.SDK_INT == Build.VERSION_CODES.KITKAT) {
                        Intent intent = new Intent();
                        intent.setAction(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
                        intent.addCategory(Intent.CATEGORY_DEFAULT);
                        intent.setData(Uri.parse("package:" + getPackageName()));
                        startActivity(intent);
                    }

Android4.4以下沒有跳轉到設置通知權限的Action 解決方案是跳轉到應用詳情頁面設置 如下:

Intent localIntent = new Intent();
                localIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                if (Build.VERSION.SDK_INT >= 9) {
                    localIntent.setAction("android.settings.APPLICATION_DETAILS_SETTINGS");
                    localIntent.setData(Uri.fromParts("package", getPackageName(), null));
                } else if (Build.VERSION.SDK_INT <= 8) {
                    localIntent.setAction(Intent.ACTION_VIEW);
                    localIntent.setClassName("com.android.settings", "com.android.settings.InstalledAppDetails");
                    localIntent.putExtra("com.android.settings.ApplicationPkgName", getPackageName());
                }
                startActivity(localIntent);