安卓8.0适配遇到的坑整理

1.设计到一些需要访问清单文件或者覆盖安装包时，或者是pakageManager类的时候，适配8.0需要加入新的权限，安装权限。

2.通知安卓8.0做了处理相比以前系统版本

 public void notify1(String title,
                        String message) {

        final String CHANNEL_ID = "channel_id_1";
        final String CHANNEL_NAME = "channel_name_1";

        NotificationManager mNotificationManager = (NotificationManager)
                getSystemService(Context.NOTIFICATION_SERVICE);

        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
            //只在Android O之上需要渠道
            NotificationChannel notificationChannel = new NotificationChannel(CHANNEL_ID,
                    CHANNEL_NAME, NotificationManager.IMPORTANCE_HIGH);
            //如果这里用IMPORTANCE_NOENE就需要在系统的设置里面开启渠道，
            //通知才能正常弹出
            mNotificationManager.createNotificationChannel(notificationChannel);
        }
        NotificationCompat.Builder builder = new NotificationCompat.Builder(LoginActivity.this, CHANNEL_ID);

       // PendingIntent intent = PendingIntent.getActivity(LoginActivity.this, 0, new Intent(LoginActivity.this, LoginActivity.class), PendingIntent.FLAG_CANCEL_CURRENT);

        builder.setSmallIcon(R.drawable.ic_launcher_background)
                .setContentTitle(title)
                .setContentText(message)
               // .setContentIntent(intent)
                .setAutoCancel(true);

        mNotificationManager.notify(1, builder.build());


    }