Class: Accordion

Inherits:
UIView
  • Object
show all
Defined in:
lib/accordion_view/accordion.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#allow_multiple_selection ⇒ Object

Returns the value of attribute allow_multiple_selection.



11
12
13
 
# File 'lib/accordion_view/accordion.rb', line 11

def allow_multiple_selection
  @allow_multiple_selection
end

#animation_curve ⇒ Object

Returns the value of attribute animation_curve.



9
10
11
 
# File 'lib/accordion_view/accordion.rb', line 9

def animation_curve
  @animation_curve
end

#animation_duration ⇒ Object

Returns the value of attribute animation_duration.



7
8
9
 
# File 'lib/accordion_view/accordion.rb', line 7

def animation_duration
  @animation_duration
end

#delegate ⇒ Object

Returns the value of attribute delegate.



16
17
18
 
# File 'lib/accordion_view/accordion.rb', line 16

def delegate
  @delegate
end

#headers ⇒ Object

Returns the value of attribute headers.



3
4
5
 
# File 'lib/accordion_view/accordion.rb', line 3

def headers
  @headers
end

#original_sizes ⇒ Object

Returns the value of attribute original_sizes.



3
4
5
 
# File 'lib/accordion_view/accordion.rb', line 3

def original_sizes
  @original_sizes
end

#scroll_view ⇒ Object

Returns the value of attribute scroll_view.



3
4
5
 
# File 'lib/accordion_view/accordion.rb', line 3

def scroll_view
  @scroll_view
end

#selected_index ⇒ Object

Returns the value of attribute selected_index.



5
6
7
 
# File 'lib/accordion_view/accordion.rb', line 5

def selected_index
  @selected_index
end

#selection_indexes ⇒ Object

Set of selected inddxes for multiple selection



14
15
16
 
# File 'lib/accordion_view/accordion.rb', line 14

def selection_indexes
  @selection_indexes
end

#views ⇒ Object

Returns the value of attribute views.



3
4
5
 
# File 'lib/accordion_view/accordion.rb', line 3

def views
  @views
end

Instance Method Details

#add_header(header, withView: view) ⇒ Object 



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
 
# File 'lib/accordion_view/accordion.rb', line 49

def add_header(header, withView:view)
  if(header and view)
    
    @headers                  << header
    @views                    << view
    @original_sizes           << NSValue.valueWithCGSize(view.frame.size)
    view.setAutoresizingMask(UIViewAutoresizingNone)
    view.setClipsToBounds(true)

    # modify the width of the header to the width of accordion
    frame = header.frame
    frame.origin.x = 0
    frame.size.width = self.frame.size.width
    header.setFrame(frame)
    # header.rounded_corners

    # modify the width of the body to the width of accordion
    frame = view.frame
    frame.origin.x = 0
    frame.size.width = self.frame.size.width
    view.setFrame(frame)
    # view.rounded_corners


    @scroll_view.addSubview(header)
    @scroll_view.addSubview(view)

    if(header.respondsToSelector("addTarget:action:forControlEvents:"))
      header.setTag(@headers.size - 1)
      header.addTarget(self, action:"touch_down:", forControlEvents:UIControlEventTouchUpInside)
    end

    set_selected_index(0) if(@selection_indexes.count == 0)

  end
end

#animation_done ⇒ Object 



140
141
142
143
144
 
# File 'lib/accordion_view/accordion.rb', line 140

def animation_done
  @views.each_with_index do |view, index|
    view.setHidden(true) unless(@selection_indexes.containsIndex(index))
  end
end

#initWithFrame(frame) ⇒ Object 



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
 
# File 'lib/accordion_view/accordion.rb', line 19

def initWithFrame(frame) 
  
  if(super)
    @views                      = []
    @headers                    = []
    @original_sizes             = []
    self.backgroundColor        = UIColor.clearColor
    self.userInteractionEnabled = true
    @animation_duration         = 0.3
    @animation_curve            = UIViewAnimationCurveEaseIn
    self.autoresizesSubviews    = false
    @selection_indexes          = NSIndexSet.new

    @scroll_view                        = UIScrollView.alloc.initWithFrame([[0, 0], [self.frame.size.width, self.frame.size.height]])
    @scroll_view.backgroundColor        = UIColor.clearColor
    @scroll_view.userInteractionEnabled = true
    @scroll_view.autoresizesSubviews    = false
    @scroll_view.scrollsToTop           = false
    @scroll_view.delegate               = self

    addSubview(@scroll_view)

    @allow_multiple_selection = false

  end

  self
end

#layoutSubviews ⇒ Object 



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
 
# File 'lib/accordion_view/accordion.rb', line 146

def layoutSubviews
  height = 0
  @views.each_with_index do |view, index|
    original_size = @original_sizes[index].CGSizeValue
    view_frame = @views[index].frame
    header_frame = @headers[index].frame
    header_frame.origin.y = height
    height += header_frame.size.height
    view_frame.origin.y = height

    if(@selection_indexes.containsIndex(index))
      view_frame.size.height = original_size.height
      @views[index].setFrame(CGRectMake(0, view_frame.origin.y, self.frame.size.width, 0))
      @views[index].setHidden(false)
    else
      view_frame.size.height = 0
    end

    height += view_frame.size.height

    if(not CGRectEqualToRect(@views[index].frame, view_frame) or not CGRectEqualToRect(@headers[index].frame, header_frame))
      UIView.beginAnimations(nil, context:nil)
      UIView.setAnimationDelegate(self)
      UIView.setAnimationDidStopSelector("animation_done:")
      UIView.setAnimationDuration(@animation_duration)
      UIView.setAnimationCurve(@animation_curve)
      UIView.setAnimationBeginsFromCurrentState(true)
      @headers[index].setFrame(header_frame)
      @views[index].setFrame(view_frame)
      UIView.commitAnimations
    end

    offset = @scroll_view.contentOffset

    UIView.beginAnimations(nil, context:nil)
    UIView.setAnimationDuration(@animation_duration)
    UIView.setAnimationCurve(@animation_curve)
    UIView.setAnimationBeginsFromCurrentState(true)
    @scroll_view.setContentSize(CGSizeMake(self.frame.size.width, height))
    UIView.commitAnimations

    if(offset.y + @scroll_view.size.height > height)
      offset.y = height - @scroll_view.frame.size.height
      offset.y = 0 if(offset.y < 0)
    end
    
    @scroll_view.setContentOffset(offset, animated:true)
    self.scrollViewDidScroll(@scroll_view)
  end
end

#scrollViewDidScroll(_scroll_view) ⇒ Object 



197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
 
# File 'lib/accordion_view/accordion.rb', line 197

def scrollViewDidScroll(_scroll_view)
  @views.each_with_index do |view, index|
    if(view.frame.size.height > 0)
      header = @headers[index]
      content = view.frame

      content.origin.y -= header.frame.size.height
      content.size.height += header.frame.size.height

      frame = header.frame

      if (CGRectContainsPoint(content, _scroll_view.contentOffset))
        if (_scroll_view.contentOffset.y < content.origin.y + content.size.height - frame.size.height)
          frame.origin.y = _scroll_view.contentOffset.y
        else
          frame.origin.y = content.origin.y + content.size.height - frame.size.height
        end
      else
        frame.origin.y = view.frame.origin.y - frame.size.height
      end
      header.frame = frame
    end
  end
end

#set_original_size(size, forIndex: index) ⇒ Object 



117
118
119
120
121
122
123
 
# File 'lib/accordion_view/accordion.rb', line 117

def set_original_size(size, forIndex:index)
  return if(index >= @views.size)

  @original_sizes[index] = NSValue.valueWithCGSize(size)
  
  self.setNeedsLayout if(@selection_indexes.containsIndex(index))
end

#set_selected_index(index) ⇒ Object 



109
110
111
 
# File 'lib/accordion_view/accordion.rb', line 109

def set_selected_index(index)
  set_selection_indexes(NSIndexSet.indexSetWithIndex(index))
end

#set_selection_indexes(_selection_indexes) ⇒ Object 



86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
 
# File 'lib/accordion_view/accordion.rb', line 86

def set_selection_indexes(_selection_indexes)
  return if(@headers.size == 0)

  if(not @allow_multiple_selection and _selection_indexes.count > 1)
    _selection_indexes = NSIndexSet.indexSetWithIndex(_selection_indexes.firstIndex)
  end

  clean_indexes = NSMutableIndexSet.new
  _selection_indexes.enumerateIndexesUsingBlock(lambda do |index, stop|
    return if(index > @headers.size-1)

    clean_indexes.addIndex(index)
  end)

  @selection_indexes = clean_indexes
  self.setNeedsLayout

  if(@delegate.respondsToSelector("accordion:didChangeSelection:"))
    @delegate.accordion(self, didChangeSelection:@selection_indexes)
  end

end

#touch_down(sender) ⇒ Object 



125
126
127
128
129
130
131
132
133
134
135
136
137
138
 
# File 'lib/accordion_view/accordion.rb', line 125

def touch_down(sender)
  if(@allow_multiple_selection)
    temp_copy = @selection_indexes.mutableCopy

    if(@selection_indexes.containsIndex(sender.tag))
      temp_copy.removeIndex(sender.tag)
    else
      temp_copy.addIndex(sender.tag)
    end
    set_selection_indexes(temp_copy)
  else
    set_selected_index(sender.tag)
  end
end