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POImplementing a while loop in android
 

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    <p>I can't understand the implementation of a while loop in android.</p> <p>Whenever I implement a while loop inside the <code>onCreate()</code> bundle, (code shown below)</p> <pre><code>public void onCreate(Bundle icicle) { super.onCreate(icicle); setContentView(R.layout.main); TextView=(TextView)findViewById(R.id.TextView); while (testByte == 0) updateAuto(); } </code></pre> <p>nothing boots up, and the program enters a "hanging" state after a while and I can't understand why. Testbyte is as follows:</p> <pre><code>byte testByte == 0; </code></pre> <p>and <code>updateAuto()</code> is supposed to update the code per 1 second and display inside the textView portion. I've been using setText inside updateAuto() as shown below and everything works fine, but once i implement the while loop all i see is a black screen and then an option to force close after a few seconds due to it "not responding".</p> <pre><code>TextView.setText(updateWords); </code></pre> <p>I've changed it to a button format (meaning i have to click on the button to update itself for now), but i want it to update itself instead of manually clicking it.</p> <p>Am i implementing the while loop in a wrong way?</p> <p>I've also tried calling the while loop in a seperate function but it still gives me the black screen of nothingness.</p> <p>I've been reading something about a Handler service... what does it do? Can the Handler service update my <code>TextView</code> in a safer or memory efficient way?</p> <p>Many thanks if anyone would give some pointers on what i should do on this.</p>
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    1. USKyle Yeo
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      1. USmadiya madiya
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    1. CO1) The code is **not** `byte testByte == 0;` or it wouldn't compile 2) You are never updating the value of `testByte`, so why would you expect the loop to ever end?
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      1. USKirk Woll
    2. COIt should actually be testByte = 0; This says you want to assign the value of 0 to the variable testByte. What you did in your example was test for equality (byte testByte == 0;) and apparently this statement evaluated to true and your while loop will always be true so you will be stuck in an infinite loop.
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      1. UStdavisjr
    3. COyes i thought by doing that it would work actually. i now know i'll need to create another thread to handle it separately so it doesn't get stuck in an infinite loop.
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      1. USKyle Yeo
 

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