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POTaking a Nap: Using Threads and 'Waits'/Sleep in Android Activities
 

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  1. POTaking a Nap: Using Threads and 'Waits'/Sleep in Android Activities
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    <p>Ok, I am making a basic app where there is a picture of a potato that will grow and shrink by the application editing the padding of the element. I am really new to Threads and I am for sure doing something wrong with the sleep/waits.</p> <p>Here is my code; it is relatively self explanatory:</p> <pre><code>package com.Potato.growingpotato; import android.app.Activity; import android.os.Bundle; import android.os.Handler; import android.view.Menu; import android.view.View; import android.widget.ImageView; public class GrowScreen extends Activity { private Thread thread; private Handler handler = new Handler(); @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_grow_screen); thread = new Thread() { public void run() { growPotato(); handler.postDelayed(this, 1000); } }; thread.start(); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.activity_grow_screen, menu); return true; } @Override public void onResume(){ super.onResume(); handler.removeCallbacks(thread); handler.postDelayed(thread, 0); } public void HarvestPotato(View view) { ImageView ThePicture = (ImageView) findViewById(R.id.imageView); ThePicture.setPadding(150,150,150,150); thread.start(); } public void NapTime(int Time) { //Try to make the application sleep for 'Time' try { Thread.sleep(Time); } catch (Exception e) { e.getLocalizedMessage(); } } public void growPotato() { //Fancy Padding manipulation long base = System.currentTimeMillis(); long WorkingNum = 0; ImageView PotatoPicture = (ImageView) findViewById(R.id.imageView); do { NapTime(100); WorkingNum = 150 - ((System.currentTimeMillis() - base)/100); PotatoPicture.setPadding((int)WorkingNum, (int)WorkingNum, (int)WorkingNum, (int)WorkingNum); } while(WorkingNum &gt; 5 ); } @Override protected void onPause() { super.onPause(); handler.removeCallbacks(thread); } } </code></pre> <p>The application freezes after starting and it is a white screen. Eventually, the picture pops up at full size and so does the button; when the button is pressed, it freezes completely</p>
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    1. USTheNickmaster21
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    1. COWhy dont you give try to alpha + scale animation?
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      1. USVipul Shah
    2. COwhat is the exact problem you facing
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      1. USVishwanath.M
    3. COThe application freezes after starting and it is a white screen. Eventually, the picture pops up at full size and so does the button; when the button is pressed, it freezes completely.
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      1. USTheNickmaster21
 

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