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POListen for button while looping
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  1. POListen for button while looping
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    copied!<p>Im having a problem with my metronome application. The application needs to loop when the start button is pressed, and continue to loop until the stop button is pressed. Ive tried having the loop call methods, but it doesnt even listen to the button since it is stuck in the loop. My current code is.</p> <pre><code>public class MainActivity extends Activity { // constant final int MINUTE = 60000; // variables SeekBar seekbar1, seekbar2; EditText txtBPM1, txtBPM2; Spinner spnTop, spnBottom; int value1, value2; boolean playing = false; int tick; int beat; SoundPool sp; // loop variable int i = 0; int tickCount = 0; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); sp = new SoundPool(5, AudioManager.STREAM_MUSIC, 0); tick = sp.load(this, R.raw.tick, 1); beat = sp.load(this, R.raw.beat, 1); final Spinner spnTop = (Spinner) findViewById(R.id.spnTop); // Create an ArrayAdapter using the string array and a default spinner // layout ArrayAdapter&lt;CharSequence&gt; adapter1 = ArrayAdapter.createFromResource( this, R.array.times1, android.R.layout.simple_spinner_item); // Specify the layout to use when the list of choices appears adapter1.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); // Apply the adapter to the spinner spnTop.setAdapter(adapter1); spnTop.setSelection(2); final Spinner spnBottom = (Spinner) findViewById(R.id.spnBottom); // Create an ArrayAdapter using the string array and a default spinner // layout ArrayAdapter&lt;CharSequence&gt; adapter2 = ArrayAdapter.createFromResource( this, R.array.times2, android.R.layout.simple_spinner_item); // Specify the layout to use when the list of choices appears adapter2.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); // Apply the adapter to the spinner spnBottom.setAdapter(adapter2); //////////////////////////////////////////////// //Seekbar/EditText////////////////////////////// //////////////////////////////////////////////// seekbar1 = (SeekBar) findViewById(R.id.skbBPM1); txtBPM1 = (EditText) findViewById(R.id.txtBPM1); txtBPM1.setText("" + 120, TextView.BufferType.EDITABLE); seekbar1.setVerticalScrollbarPosition(value1); seekbar1.setOnSeekBarChangeListener(new OnSeekBarChangeListener() { public void onProgressChanged(SeekBar seekbar, int progress, boolean fromUser) { value1 = progress + 30; txtBPM1.setText("" + value1, TextView.BufferType.EDITABLE); } @Override public void onStartTrackingTouch(SeekBar arg0) { // TODO Auto-generated method stub // stops metronome if playing i = 1; } @Override public void onStopTrackingTouch(SeekBar arg0) { // set the textbox to a new value txtBPM1.setText("" + value1, TextView.BufferType.EDITABLE); } }); Button btnStart1 = (Button) findViewById(R.id.btnStart1); btnStart1.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { value1 = Integer.parseInt(txtBPM1.getText().toString()); if (value1 &gt; 250 || value1 &lt; 30) { Toast.makeText( getApplicationContext(), "BPM value must be at least 30 and no more than 250.", Toast.LENGTH_LONG).show(); } else { // set frequency and timers int tickTime = MINUTE / value1; int n = Integer.parseInt(spnBottom.getSelectedItem() .toString()); int beat = Integer.parseInt(spnTop.getSelectedItem() .toString()); tickTime = (tickTime * 4) / n; // loop to play sound every specified incriment for (i = 0; i &gt; 0; i += 0) { tickCount++; if (tickCount == beat) { try { Thread.sleep(tickTime); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } sp.play(beat, 1, 1, 0, 0, 1); tickCount = 0; } else { try { Thread.sleep(tickTime); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); }//end catch sp.play(tick, 1, 1, 0, 0, 1); tickCount++; }//end else }//end loop }//end else } }); Button btnStop1 = (Button) findViewById(R.id.btnStop1); btnStop1.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { if (playing == true) { i = 1; } else { Toast.makeText( getApplicationContext(), "Metrenome is not playing. To begin playing press the Start button.", Toast.LENGTH_LONG).show(); } } }); ////////////////////////////////////////////// //Second spinner boxes/buttons//////////////// ////////////////////////////////////////////// /* seekbar2 = (SeekBar) findViewById(R.id.skbBPM2); txtBPM2 = (EditText) findViewById(R.id.txtBPM2); txtBPM2.setText("" + 120, TextView.BufferType.EDITABLE); value2 = Integer.parseInt(txtBPM2.getText().toString()); seekbar2.setVerticalScrollbarPosition(value2); seekbar2.setOnSeekBarChangeListener(new OnSeekBarChangeListener() { public void onProgressChanged(SeekBar seekbar, int progress, boolean fromUser) { value2 = progress + 30; txtBPM2.setText("" + value2, TextView.BufferType.EDITABLE); } @Override public void onStartTrackingTouch(SeekBar arg0) { // TODO Auto-generated method stub // Nothing happens } @Override public void onStopTrackingTouch(SeekBar arg0) { // set the textbox to a new value txtBPM2.setText("" + value2, TextView.BufferType.EDITABLE); } }); */ }// end onCreate }// end class </code></pre>
 

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