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POWhy does setAlpha() act on all my buttons whilst setImageResource() acts on just one button?
 

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  1. POWhy does setAlpha() act on all my buttons whilst setImageResource() acts on just one button?
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    <p>At the moment my buttons do not work. The first two times any are pressed all buttons are influenced rather than just the one that has been pressed.</p> <p>Swap: </p> <pre><code>seatButton[i].setAlpha(255); </code></pre> <p>For:</p> <pre><code>seatButton[i].setImageResource(0x7f020007) </code></pre> <p>And my code works! Only the button I press is effected. Why?</p> <pre><code>@Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); table = new Table(); //Creates Table seatButton = new ImageButton[10]; //Creates Array of buttons seatStats = new TextView[10]; //Creates array for stat panels //Creates longClickListener, used for players to sit in or out. longClickListener = new View.OnLongClickListener() { @Override public boolean onLongClick(View v) { for(int i=0; i&lt;10; i++) { //Each seat[i] will correspond with each imageButtoni+1 if(v.getId() == (getResources().getIdentifier("imageButton" + (i+1), "id", "en.deco.android.livehud"))) { //If the seat is empty fill it, place a player in the seat and change the button from translucent to opaque if(table.seats[i].getState().equals("empty")) { seatButton[i].setAlpha(255); //seatButton[i].setImageResource(0x7f020000); table.seats[i].sit(new Player()); seatStats[i].setVisibility(View.VISIBLE); Toast.makeText(GUI.this, table.seats[i].getState(), Toast.LENGTH_SHORT).show(); } //If the seat is full, empty it else { seatButton[i].setAlpha(80); //seatButton[i].setImageResource(0x7f020007); table.seats[i].sitOut(); seatStats[i].setVisibility(View.INVISIBLE); Toast.makeText(GUI.this, table.seats[i].getState() + i, Toast.LENGTH_SHORT).show(); } } } return true; } }; //Assigns the buttons and stats panels defined in the layout xml to their appropiate java arrays. Also sets clickListeners to buttons. for(int i = 0; i &lt; 10; i++) { seatButton[i] = (ImageButton) findViewById(getResources().getIdentifier("imageButton" + (i+1), "id", "en.deco.android.livehud")); seatStats[i] = (TextView) findViewById(getResources().getIdentifier("textView" + (i+1), "id", "en.deco.android.livehud")); seatButton[i].setOnLongClickListener(longClickListener); seatButton[i].setAlpha(80); } </code></pre>
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