Android通知相关

发表于 阅读次数：

有些手机默认不开启通知权限，需要我们自己来检测和提示用户开启。

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private void enableNotificationPermission(Context context) {
    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
        return;
    }
    if (Uapp.isNotificationEnabled(context)) {
        return;
    }

    final String KEY_SP_CLOSE_NOTIFICATION = "KEY_SP_CLOSE_NOTIFICATION";
    if (Usp.init(context).getBoolean(KEY_SP_CLOSE_NOTIFICATION, false)) {
        return;
    }
    new AlertDialog.Builder(context,
            android.R.style.Theme_DeviceDefault_Light_Dialog)
            .setTitle("友情提示").setMessage("为了给您提供更好的服务，请开启应用通知权限")
            .setNegativeButton("不用了", (dialog, which) -> Usp.init(context)
                    .putBoolean(KEY_SP_CLOSE_NOTIFICATION, true)
                    .commit())
            .setNeutralButton("下次再说", (dialog, which) -> {
                // do nothing
            })
            .setPositiveButton("去开启", (dialog, which) -> {
                Uapp.openAppDetailSettings(context);
            })
            .setCancelable(false)
            .create()
            .show();
}
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public class Uapp {
    /**
     * 判断是否开启通知权限
     * (https://blog.csdn.net/reglog/article/details/79863751)
     *
     * @param context
     * @return
     */
    @RequiresApi(api = Build.VERSION_CODES.KITKAT)
    @SuppressWarnings("unchecked")
    public static boolean isNotificationEnabled(Context context) {
        String CHECK_OP_NO_THROW = "checkOpNoThrow";
        String OP_POST_NOTIFICATION = "OP_POST_NOTIFICATION";

        AppOpsManager mAppOps = (AppOpsManager) context.getSystemService(Context.APP_OPS_SERVICE);
        ApplicationInfo appInfo = context.getApplicationInfo();
        String pkg = context.getApplicationContext().getPackageName();
        int uid = appInfo.uid;

        /* Context.APP_OPS_MANAGER */
        try {
            Class appOpsClass = Class.forName(AppOpsManager.class.getName());

            Method checkOpNoThrowMethod = appOpsClass.getMethod(CHECK_OP_NO_THROW, Integer.TYPE, Integer.TYPE,
                    String.class);
            Field opPostNotificationValue = appOpsClass.getDeclaredField(OP_POST_NOTIFICATION);

            int value = (Integer) opPostNotificationValue.get(Integer.class);
            return ((Integer) checkOpNoThrowMethod.invoke(mAppOps, value, uid, pkg) == AppOpsManager.MODE_ALLOWED);

        } catch (Exception e) {
            e.printStackTrace();
        }
        return false;

    }

    // 跳转APP设置界面
    public static void openAppDetailSettings(Context context) {
        //跳转设置界面
        Intent intent = new Intent();
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        if (Build.VERSION.SDK_INT >= 9) {
            intent.setAction("android.settings.APPLICATION_DETAILS_SETTINGS");
            intent.setData(Uri.fromParts("package", context.getPackageName(), null));
        } else if (Build.VERSION.SDK_INT <= 8) {
            intent.setAction(Intent.ACTION_VIEW);
            intent.setClassName("com.android.settings", "com.android.setting.InstalledAppDetails");
            intent.putExtra("com.android.settings.ApplicationPkgName", context.getPackageName());
        }

        context.startActivity(intent);
    }
}