Stuck In Global Structure Of Quiz App
Sep 20, 2012
I recently started programming in Android, and as a beginning project I am trying to build a logo quiz app. The idea: You see a splash screen after opening the app (play game - about). Play game takes you to a new activity called LevelSelector.java where you can choose the level you want to play. Clicking on a level takes you to another new Activity Level.java.I created a SQLite db with 20 questions in it which I install with a DBHelper.java class, every question also has a level column.
However, I get lost in my global structure. Since I work with different levels I don't want to make a new class for every level. I guess I lost the overview due to my lack of programming in android, but I figured the best way to learn it is (after I watched tutorials) to build an app myself..
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Mar 8, 2013
I am having issues with my droid 2 global, bootloader is stuck at "MEM_MAP blank" which i can fix easily, but a really irritating issue is happening...
I am stuck at "Battery Low, Cannot Program". Now dont tell me that i need to charge it! ive had it plugged in for hours. usually it takes 1 hour to get 0% to 100% battery. i was inatlling the cyanogen mod and i did exactly what it said, but it said "Pull out the battery and press "X" and power back" or something like that. so i just got mad and left the device alone, then when i turned the device back on, i got "MEM_MAP blank". No problem. but then i noticed it flashing that i needed to charge it,, several hours later of charging. still have low battery, ive tried to boot into recovery, no luck, i have a external dock if that information is useful, i dont need support on the mem map, just this charging issue.
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Apr 2, 2009
I am a android beginner, now i am going to design a Quiz application for android I am very confuse about which layout i should use for Quiz. My requirement is when user touch the answer , the next question will appear on same screen and at the end of quiz the web view will be generated as a result page. Right now i don't have in depth knowledge of Layouts and switching the view when user clicks on Answers. Please help me at least suggest me Which layout i use.
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Aug 2, 2010
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Jul 7, 2010
Quite interesting quiz game. It has up-to-date database with thousands of questions related to World Cup 2010. Currently Semi-Finals. Online score board, the guy named "peter" has occupied the no.1 for several days. Two player mode let play with friends f2f, be fast and accurate.
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Jul 16, 2010
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Jan 5, 2010
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Feb 5, 2012
I'm trying to create a simple Workout Timer for Android. The user creates a WorkoutPlan containing info such as total duration, total rest time, etc, the app will display a timer that updates every second.
Pretty simple to begin with, but I'm trying to build the app as properly as possible, i.e. separation of concern, correct techniques, responsive UI, ensure the timer will be accurate, etc.
Here's a simplification of what I have so far:
WorkoutPlan, the user can load/save different workout plans to the timer
Code:
public class WorkoutPlan {
public long duration;
}
TimerThread, this class implements `Runnable`, it takes in a `WorkoutPlan` in the constructor, start/stop, shows elapsed time.
Code:
public class TimerThread implements Runnable {
public boolean running = false;
[Code]....
TimerView, the custom view that displays the elapsed time
Code:
public class TimerView extends View {
private final Paint mBg;
private final Paint mText;
private WorkoutPlan plan;
private TimerThread timer;
private Thread thread;
private Handler handler = new TimerHandler();
[Code]...
Finally, WorkoutTimer, the activity that starts it off
Code:
public class WorkoutTimer extends Activity {
private TimerView mTimer;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
[Code]....
A couple of questions:
Where's the best place to create the `WorkoutPlan` object? Currently it's done in `TimerView`. Should it be done in the `WorkoutTimer` activity instead? If yes, how do I pass the `WorkoutPlan` object to `TimerView`?
The app works fine the first time, but crashes when I go to the home screen then back to the app the second time. What's causing it to crash? Is it the theading?
Currently I'm using a `Handler` in a new `Thread`. Is this ok or would a `TimerTask` be better? Where's the best place to start the thread? Am I correct to put all the threading code in `TimerView`?
Am I correct to add synchronized to all the methods in `TimerThread`?
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