Han(hangang) River

I have been planning to write this blog about my trips in Korea. Although it is not very big country like India, but it has very rich tourism experience. Here I would like to share some knowledge how to reach there and what to do.

How to reach there???

Although it was my second time when I went there but every time I get confused. Nearest metro station to the river is Yeouinaru which is on Subway line number 5. So if you are coming from Suwon, get down at Singil station and then change the line to 5. Take exit 2, and here you are.

What to do???

Lots of activity you have there to do. Cycling, specially double seater and triple seater( who haven’t tried these cycles, I know how attractive they are). You can try paddle-boating, speed boat and in last Cruise.

If you have enough time left then you can also go for 63 building which is just near to Han river. It has Wax Museum, Sea world and of-course view of Han River and city from the 63^rd floor.

When to go????

I will suggest you go on Sunday and try to take Cruise in the slot of 7:30. Because by that time it will be almost night, and you can take the night view of Han River which is really good. And I think they have some fireworks and all that day. And try to be there by 4 'o' Clock, otherwise you will surely miss few things.

Etc.

There you will have enough shops for eatables, if you are hungry. KFC , GS25 and one coffee shop is there. So food won’t be issue.

some useful commands

little endian to big endian or vice-versa


temp = ( ( ((temp) & 0x000000FF) << 24) | (((temp) & 0x0000FF00) << 8 ) | (((temp) & 0x00FF0000)>>8) |(((temp)&0xFF000000)>>24));


Mount or unmount
mount -o remount rw /system 


Grep command
grep "" -rni --include=*.{java,} *


adb reboot download


logcat -f /dev/kmsg &

Android:R can not resolved.

Hi guys,

If you are facing this problem, it means there is some problem in the gen folder in your project. So the best solution to remove this error is to Clean build your project. So just go to Project -> Clean. It will clean the project and now build the project. If it doesn’t work then its better you delete gen folder and do the above steps again.

And Still if it doesn’t work I will suggest you to take back-up of your project and create a new project and now copy the content from old folder to new one. It will work.

Window fluctuation in case of AlertDialog

Hi Guys,
Today I was facing following problem
Problem:
In Gallery,if you view any image and in that if you select Menu-> Details.
At the time of display image it shows annunciator bar for a moment and just disappear. I dont want this. After analyzing this I found that this is not visible when the items in the dialog is limited to 2-3 items. So suggest me the solution. It is in the Google Froyo code.
So here is the solution for it
Solution:

 AlertDialog alert = builder.create();
Window dwindow = alert.getWindow(); 

dwindow.setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,   WindowManager.LayoutParams.FLAG_FULLSCREEN);
alert.show();

Hope this will be useful for you.

Android : Pop-up Disappear when configuration changed

If you are facing this problem in your android application, then here is the solution

1. Override onConfigurationChanged() method in your activity.

2. And also add android:configChanges=”orientation|keyboardHidden” in the activity, in AndroidManifest file of that application.

And thats it. Your problem will be resolved.

android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an application

Hi guys,

if you are facing this problem then it is problem with your context which you are passing in the AlertDialog, so make sure you are passing the Context which is initialized by

Context context = this;

And some times in case of Service, you can face this problem while you are using the correct Context. In that case use the following code before show() method.

AlertDialog ad;
// code for creating. .create();
ad.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_DIALOG);
ad.show();

It will work.

String to Hexadecimal conversion

This blog has been moved to algo.rahulblogs.com
For this post please go to 


http://algo.rahulblogs.com/2010/08/string-to-hexadecimal-conversion/