1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
|
package github.daneren2005.dsub.view;
import android.content.Context;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import android.widget.ImageButton;
public class AutoRepeatButton extends ImageButton {
private static final long initialRepeatDelay = 1000;
private static final long repeatIntervalInMilliseconds = 300;
private boolean doClick = true;
private Runnable repeatEvent = null;
private Runnable repeatClickWhileButtonHeldRunnable = new Runnable() {
@Override
public void run() {
doClick = false;
//Perform the present repetition of the click action provided by the user
// in setOnClickListener().
if(repeatEvent != null)
repeatEvent.run();
//Schedule the next repetitions of the click action, using a faster repeat
// interval than the initial repeat delay interval.
postDelayed(repeatClickWhileButtonHeldRunnable, repeatIntervalInMilliseconds);
}
};
private void commonConstructorCode() {
this.setOnTouchListener(new OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
int action = event.getAction();
if(action == MotionEvent.ACTION_DOWN)
{
doClick = true;
//Just to be sure that we removed all callbacks,
// which should have occurred in the ACTION_UP
removeCallbacks(repeatClickWhileButtonHeldRunnable);
//Schedule the start of repetitions after a one half second delay.
postDelayed(repeatClickWhileButtonHeldRunnable, initialRepeatDelay);
setPressed(true);
}
else if(action == MotionEvent.ACTION_UP) {
//Cancel any repetition in progress.
removeCallbacks(repeatClickWhileButtonHeldRunnable);
if(doClick || repeatEvent == null) {
performClick();
}
setPressed(false);
}
//Returning true here prevents performClick() from getting called
// in the usual manner, which would be redundant, given that we are
// already calling it above.
return true;
}
});
}
public void setOnRepeatListener(Runnable runnable) {
repeatEvent = runnable;
}
public AutoRepeatButton(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
commonConstructorCode();
}
public AutoRepeatButton(Context context, AttributeSet attrs) {
super(context, attrs);
commonConstructorCode();
}
public AutoRepeatButton(Context context) {
super(context);
commonConstructorCode();
}
}
|
