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Android

Posted by Jack Hill
Jack Hill
1,168 Points

ERROR!

I'm having a problem. Eclipse is saying there is an error with the last line of this code. It says something about an @String. I cant run my program until I fix it. 

 <ImageView
        android:id="@+id/imageView1"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:scaleType="fitCenter"
        android:src="@drawable/ball01" android:contentDescription="TODO"/>

I also have another problem, that I will post once this one is fixed. I don't understand how to fix this code because I didn't write it. Thank You for anyone who helps!

15 Answers

Daniel Kenny
Daniel Kenny
8,051 Points
Daniel Kenny
Daniel Kenny
8,051 Points

"TODO" is an embedded string literal and will give you a warning, heres a tip:

Right click on the string in question, click on quick fix and then extract string, this will refactor the string literal and put it into your string resources file, which will get rid of the warning.

Jack Hill
Jack Hill
1,168 Points
Jack Hill
Jack Hill
1,168 Points

Thank You so much! It actually got rid of Both of my errors! Time to program again!

Daniel Kenny
Daniel Kenny
8,051 Points
Daniel Kenny
Daniel Kenny
8,051 Points

ctrl-1 / cmd-1 is the quick fix shortcut, I couldn't live without it.

Best of luck to you!

Jack Hill
Jack Hill
1,168 Points
Jack Hill
Jack Hill
1,168 Points

May I ask you a question that I not on the topic of this exact code?

Jack Hill
Jack Hill
1,168 Points
Jack Hill
Jack Hill
1,168 Points

is*

Daniel Kenny
Daniel Kenny
8,051 Points
Daniel Kenny
Daniel Kenny
8,051 Points

Fire away Jack

Jack Hill
Jack Hill
1,168 Points
Jack Hill
Jack Hill
1,168 Points

If I were to get heavy into programming what kind of OS is better, a Windows or a Mac. Now, I know this is all opinion but, I can see that you are very experienced. Now, I used to think that Windows machines were the better and that's why I'm typing away at one now. But, I start to see everyone code on Apples now and I can't figure out why everyone made the switch. Now don't get me wrong, I love Macs, I use one all the time, that is my mothers. Okay, I'm kinda rambling on, but, my question was: Mac or Pc, software/ web development?

Daniel Kenny
Daniel Kenny
8,051 Points
Daniel Kenny
Daniel Kenny
8,051 Points

All platforms have their limitations, my advice to you would be to expose yourself to as much as possible so that you can experience those limitations, get to know whats happening under the hood and you will soon find your own answer to this question.

I use a mac and have done for several years, mainly because of the build quality and I really love linux. These operating systems are popular because of the underlying system (UNIX) which has for me become a joy to use. I recommend giving linux a try once you are done with the android projects, treehouse offer a great course on it.

I hope this helps you out! Just keep coding on whatever machine you have available.

Jack Hill
Jack Hill
1,168 Points
Jack Hill
Jack Hill
1,168 Points

Thank you that helped a lot. But, now Eclipse is saying that there is still an error whenever I try to run my program. This is the part in my track where I connected my android phone. I can't see any errors so I'm very confused. I also have restarted Eclipse and It says the same thing once re-booted

Daniel Kenny
Daniel Kenny
8,051 Points
Daniel Kenny
Daniel Kenny
8,051 Points

Is it running in the emulator? I know you need to install additional drivers in windows when debugging on an actual device.

Rather than re running videos it may be worth running through the android guide to running your app

Jack Hill
Jack Hill
1,168 Points
Jack Hill
Jack Hill
1,168 Points

Okay, Thank you. That link helped me out it is now running on my phone, but one problem. The text that is supposed to be inside the Crystal ball is at the top of my screen. Is that okay? One my program in eclipse it is set to be in the crystal ball. I also have to select a phone and that phone that I have selected isn't my phone. Could that be causing it?

Jack Hill
Jack Hill
1,168 Points
Jack Hill
Jack Hill
1,168 Points

on*

Jack Hill
Jack Hill
1,168 Points
Jack Hill
Jack Hill
1,168 Points

Nevermind, my linear layout is all jacked up and I can't get it to go back to the center of the screen

Daniel Kenny
Daniel Kenny
8,051 Points
Daniel Kenny
Daniel Kenny
8,051 Points

Have a play around with the interface builder in eclipse and try to get that label in the middle, then run the app, if it still isn't displaying correctly, take a look at the XML view and look at the positioning attributes, if the label is appearing at the top of the page then something must be telling it to be there!

Its been a long time since I did the crystal ball app but I think the positioning of elements on the screen is revisited a few times as the project goes on, so hang in there, you should figure it out.

Jack Hill
Jack Hill
1,168 Points
Jack Hill
Jack Hill
1,168 Points

Thanks Daniel. I'm watching older videos. Hopefully I'll figure it out. Thank you for all your help!