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StopOn500
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:gravity="center"
android:clickable="true"
android:id="@+id/wholeScreen">
<TextView
android:id="@+id/countView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:textSize="100dip"
/>
</LinearLayout>
package com.cguild.stopon500;
import java.util.concurrent.atomic.AtomicInteger;
import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.TextView;
import android.widget.Toast;
public class StopOn500Activity extends Activity {
private static final String TAG = StopOn500Activity.class.getSimpleName();
private static final int TARGET = 500;
private static final int INITIAL_DIFFICULTY = 25;
private static final int DIFFICULTY_CHANGE = 5;
private static final int HARDEST_DIFFICULTY = 10;
private static final int GOOD_DELTA = 10;
private AtomicInteger mCount = new AtomicInteger();
private int mDifficulty = INITIAL_DIFFICULTY;
private Thread mTimerThread = null;
private TextView mCountView = null;
private boolean mWon = false;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mCountView = (TextView) findViewById(R.id.countView);
}
@Override
protected void onResume() {
super.onResume();
mDifficulty = INITIAL_DIFFICULTY;
startGame();
findViewById(R.id.wholeScreen).setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
mTimerThread.interrupt();
try {
mTimerThread.join();
} catch (InterruptedException e) {
e.printStackTrace();
}
updateCountUi();
final int delta = Math.abs(TARGET-mCount.get());
gameFinished(delta);
}
});
}
@Override
protected void onPause() {
super.onPause();
mTimerThread.interrupt();
mTimerThread = null;
}
private void updateCountUi() {
mCountView.setText(mCount.get()+"");
}
private void startGame() {
if (mTimerThread != null && !mTimerThread.isInterrupted()) {
Log.w(TAG, "Timer thread is already running!");
}
mCount.set(0);
mTimerThread = new TimerThread(new Handler());
mTimerThread.start();
}
private void gameFinished(final int delta) {
if (delta <= GOOD_DELTA) {
mDifficulty -= DIFFICULTY_CHANGE;
if (mDifficulty < HARDEST_DIFFICULTY) {
mWon = true;
mCountView.setText("You win!");
} else {
Toast.makeText(this, "Good!", Toast.LENGTH_SHORT).show();
startGame();
}
} else {
Toast.makeText(this, "Bad :(", Toast.LENGTH_SHORT).show();
startGame();
}
}
private class CountUpdater implements Runnable {
@Override
public void run() {
if (!mWon) {
updateCountUi();
}
}
}
private class TimerThread extends Thread {
private final Handler mHandler;
public TimerThread(final Handler handler) {
mHandler = handler;
}
@Override
public void run() {
while (!isInterrupted()) {
mCount.incrementAndGet();
mHandler.post(new CountUpdater());
try {
Thread.sleep(mDifficulty);
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
return;
}
}
}
}
}
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