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
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
|
/*
* Copyright (C) 2008 The Android Open Source Project Licensed under the Apache
* License, Version 2.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law
* or agreed to in writing, software distributed under the License is
* distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the specific language
* governing permissions and limitations under the License.
*/
package org.lineageos.eleven.widgets;
import android.content.Context;
import android.os.SystemClock;
import android.util.AttributeSet;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageButton;
import org.lineageos.eleven.R;
import org.lineageos.eleven.utils.ApolloUtils;
import org.lineageos.eleven.utils.MusicUtils;
/**
* A {@link ImageButton} that will repeatedly call a 'listener' method as long
* as the button is pressed, otherwise functions like a typecal
* {@link ImageButton}
*/
public class RepeatingImageButton extends ImageButton implements OnClickListener {
private static final long sInterval = 400;
private long mStartTime;
private int mRepeatCount;
private RepeatListener mListener;
/**
* @param context The {@link Context} to use
* @param attrs The attributes of the XML tag that is inflating the view.
*/
@SuppressWarnings("deprecation")
public RepeatingImageButton(final Context context, final AttributeSet attrs) {
super(context, attrs);
setPadding(0, 0, 0, 0);
setBackground(getResources().getDrawable(R.drawable.selectable_background));
setFocusable(true);
setLongClickable(true);
setOnClickListener(this);
updateState();
}
/**
* {@inheritDoc}
*/
@Override
public void onClick(final View view) {
switch (view.getId()) {
case R.id.action_button_previous:
MusicUtils.previous(getContext(), false);
break;
case R.id.action_button_next:
MusicUtils.next();
default:
break;
}
}
/**
* Sets the listener to be called while the button is pressed and the
* interval in milliseconds with which it will be called.
*
* @param l The listener that will be called
* @param interval The interval in milliseconds for calls
*/
public void setRepeatListener(final RepeatListener l) {
mListener = l;
}
/**
* {@inheritDoc}
*/
@Override
public boolean performLongClick() {
if (mListener == null) {
ApolloUtils.showCheatSheet(this);
}
mStartTime = SystemClock.elapsedRealtime();
mRepeatCount = 0;
post(mRepeater);
return true;
}
/**
* {@inheritDoc}
*/
@Override
public boolean onTouchEvent(final MotionEvent event) {
if (event.getAction() == MotionEvent.ACTION_UP) {
/* Remove the repeater, but call the hook one more time */
removeCallbacks(mRepeater);
if (mStartTime != 0) {
doRepeat(true);
mStartTime = 0;
}
}
return super.onTouchEvent(event);
}
/**
* {@inheritDoc}
*/
@Override
public boolean onKeyDown(final int keyCode, final KeyEvent event) {
switch (keyCode) {
case KeyEvent.KEYCODE_DPAD_CENTER:
case KeyEvent.KEYCODE_ENTER:
/*
* Need to call super to make long press work, but return true
* so that the application doesn't get the down event
*/
super.onKeyDown(keyCode, event);
return true;
}
return super.onKeyDown(keyCode, event);
}
/**
* {@inheritDoc}
*/
@Override
public boolean onKeyUp(final int keyCode, final KeyEvent event) {
switch (keyCode) {
case KeyEvent.KEYCODE_DPAD_CENTER:
case KeyEvent.KEYCODE_ENTER:
/* Remove the repeater, but call the hook one more time */
removeCallbacks(mRepeater);
if (mStartTime != 0) {
doRepeat(true);
mStartTime = 0;
}
}
return super.onKeyUp(keyCode, event);
}
private final Runnable mRepeater = new Runnable() {
@Override
public void run() {
doRepeat(false);
if (isPressed()) {
postDelayed(this, sInterval);
}
}
};
/**
* @param shouldRepeat If True the repeat count stops at -1, false if to add
* incrementally add the repeat count
*/
private void doRepeat(final boolean shouldRepeat) {
final long now = SystemClock.elapsedRealtime();
if (mListener != null) {
mListener.onRepeat(this, now - mStartTime, shouldRepeat ? -1 : mRepeatCount++);
}
}
/**
* Sets the correct drawable for playback.
*/
public void updateState() {
switch (getId()) {
case R.id.action_button_next:
setImageDrawable(getResources().getDrawable(R.drawable.btn_playback_next));
break;
case R.id.action_button_previous:
setImageDrawable(getResources().getDrawable(R.drawable.btn_playback_previous));
break;
default:
break;
}
}
public interface RepeatListener {
/**
* @param v View to be set
* @param duration Duration of the long press
* @param repeatcount The number of repeat counts
*/
void onRepeat(View v, long duration, int repeatcount);
}
}
|
