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トップC#に関する質問[WPF]アニメーションの再生完了を待って別の処理を開始する方法

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回答編集履歴

2

見直しキャンペーン中

2023/07/23 08:16

投稿

TN8001
TN8001

スコア9862

test CHANGED
@@ -1,169 +1,85 @@
1
1
  `Storyboard`には`Completed`イベントがあります。
2
-
3
2
  [Storyboard クラス (System.Windows.Media.Animation) | Microsoft Docs](https://docs.microsoft.com/ja-jp/dotnet/api/system.windows.media.animation.storyboard#events)
4
3
 
5
-
6
-
7
- ```C#
4
+ ```cs
8
-
9
5
  private void Click_Greeting(object sender, RoutedEventArgs e)
10
-
11
6
  {
12
-
13
7
  ph.ChangePhrase();
14
8
 
9
+ Storyboard sb;
10
+ switch(ph.Now)
11
+ {
12
+ case Period.MORNING:
13
+ sb = FindResource("MorningAnimation") as Storyboard;
14
+ break;
15
+ case Period.EVENING:
16
+ sb = FindResource("EveningAnimation") as Storyboard;
17
+ break;
18
+ default:
19
+ sb = FindResource("NightAnimation") as Storyboard;
20
+ break;
21
+ }
15
22
 
23
+ sb.Completed += Completed;
24
+ BeginStoryboard(sb);
16
25
 
26
+ void Completed(object _, EventArgs __)
27
+ {
28
+ sb.Completed -= Completed;
29
+ ph.ChangePhraseAfterAnimation();
30
+ }
31
+ }
32
+ ```
33
+
34
+ `Storyboard`に組み込めるようなものなら、入れてしまってもよさそうですが。
35
+
36
+ ---
37
+
38
+ もちろんxamlでイベントつけてもいいですよ。
39
+ ```xml
40
+ <Storyboard x:Key="MorningAnimation" Completed="Storyboard_Completed">
41
+ <ColorAnimationUsingKeyFrames Storyboard.TargetName="window" Storyboard.TargetProperty="(Panel.Background).(SolidColorBrush.Color)">
42
+ <EasingColorKeyFrame KeyTime="0:0:1" Value="#FFFFA400" />
43
+ </ColorAnimationUsingKeyFrames>
17
- Storyboard sb;
44
+ </Storyboard>
45
+ <Storyboard x:Key="EveningAnimation" Completed="Storyboard_Completed">
46
+ <ColorAnimationUsingKeyFrames Storyboard.TargetName="window" Storyboard.TargetProperty="(Panel.Background).(SolidColorBrush.Color)">
47
+ <EasingColorKeyFrame KeyTime="0:0:1" Value="#FF0388FF" />
48
+ </ColorAnimationUsingKeyFrames>
49
+ </Storyboard>
50
+ <Storyboard x:Key="NightAnimation" Completed="Storyboard_Completed">
51
+ <ColorAnimationUsingKeyFrames Storyboard.TargetName="window" Storyboard.TargetProperty="(Panel.Background).(SolidColorBrush.Color)">
52
+ <EasingColorKeyFrame KeyTime="0:0:1" Value="#FF02067A" />
53
+ </ColorAnimationUsingKeyFrames>
54
+ </Storyboard>
55
+ ```
56
+
57
+ ```cs
58
+ private void Click_Greeting(object sender, RoutedEventArgs e)
59
+ {
60
+ ph.ChangePhrase();
18
61
 
19
62
  switch(ph.Now)
20
-
21
63
  {
22
-
23
64
  case Period.MORNING:
24
-
25
- sb = FindResource("MorningAnimation") as Storyboard;
65
+ var sb = FindResource("MorningAnimation") as Storyboard;
26
-
66
+ BeginStoryboard(sb);
27
67
  break;
28
68
 
29
69
  case Period.EVENING:
30
-
31
70
  sb = FindResource("EveningAnimation") as Storyboard;
32
-
71
+ BeginStoryboard(sb);
33
72
  break;
34
73
 
35
- default:
74
+ case Period.NIGHT:
36
-
37
75
  sb = FindResource("NightAnimation") as Storyboard;
38
-
76
+ BeginStoryboard(sb);
39
77
  break;
40
-
41
78
  }
42
-
43
-
44
-
45
- sb.Completed += Completed;
46
-
47
- BeginStoryboard(sb);
48
-
49
-
50
-
51
- void Completed(object _, EventArgs __)
52
-
53
- {
54
-
55
- sb.Completed -= Completed;
56
-
57
- ph.ChangePhraseAfterAnimation();
58
-
59
- }
60
-
61
79
  }
62
80
 
81
+ private void Storyboard_Completed(object sender, EventArgs e)
82
+ {
83
+ ph.ChangePhraseAfterAnimation();
84
+ }
63
85
  ```
64
-
65
-
66
-
67
- `Storyboard`に組み込めるようなものなら、入れてしまってもよさそうですが。
68
-
69
-
70
-
71
- ---
72
-
73
-
74
-
75
- もちろんxamlでイベントつけてもいいですよ。
76
-
77
- ```xaml
78
-
79
- <Storyboard x:Key="MorningAnimation" Completed="Storyboard_Completed">
80
-
81
- <ColorAnimationUsingKeyFrames Storyboard.TargetName="window" Storyboard.TargetProperty="(Panel.Background).(SolidColorBrush.Color)">
82
-
83
- <EasingColorKeyFrame KeyTime="0:0:1" Value="#FFFFA400" />
84
-
85
- </ColorAnimationUsingKeyFrames>
86
-
87
- </Storyboard>
88
-
89
- <Storyboard x:Key="EveningAnimation" Completed="Storyboard_Completed">
90
-
91
- <ColorAnimationUsingKeyFrames Storyboard.TargetName="window" Storyboard.TargetProperty="(Panel.Background).(SolidColorBrush.Color)">
92
-
93
- <EasingColorKeyFrame KeyTime="0:0:1" Value="#FF0388FF" />
94
-
95
- </ColorAnimationUsingKeyFrames>
96
-
97
- </Storyboard>
98
-
99
- <Storyboard x:Key="NightAnimation" Completed="Storyboard_Completed">
100
-
101
- <ColorAnimationUsingKeyFrames Storyboard.TargetName="window" Storyboard.TargetProperty="(Panel.Background).(SolidColorBrush.Color)">
102
-
103
- <EasingColorKeyFrame KeyTime="0:0:1" Value="#FF02067A" />
104
-
105
- </ColorAnimationUsingKeyFrames>
106
-
107
- </Storyboard>
108
-
109
- ```
110
-
111
-
112
-
113
- ```C#
114
-
115
- private void Click_Greeting(object sender, RoutedEventArgs e)
116
-
117
- {
118
-
119
- ph.ChangePhrase();
120
-
121
-
122
-
123
- switch(ph.Now)
124
-
125
- {
126
-
127
- case Period.MORNING:
128
-
129
- var sb = FindResource("MorningAnimation") as Storyboard;
130
-
131
- BeginStoryboard(sb);
132
-
133
- break;
134
-
135
-
136
-
137
- case Period.EVENING:
138
-
139
- sb = FindResource("EveningAnimation") as Storyboard;
140
-
141
- BeginStoryboard(sb);
142
-
143
- break;
144
-
145
-
146
-
147
- case Period.NIGHT:
148
-
149
- sb = FindResource("NightAnimation") as Storyboard;
150
-
151
- BeginStoryboard(sb);
152
-
153
- break;
154
-
155
- }
156
-
157
- }
158
-
159
-
160
-
161
- private void Storyboard_Completed(object sender, EventArgs e)
162
-
163
- {
164
-
165
- ph.ChangePhraseAfterAnimation();
166
-
167
- }
168
-
169
- ```

1

追記

2020/10/23 08:46

投稿

TN8001
TN8001

スコア9862

test CHANGED
@@ -1,4 +1,8 @@
1
1
  `Storyboard`には`Completed`イベントがあります。
2
+
3
+ [Storyboard クラス (System.Windows.Media.Animation) | Microsoft Docs](https://docs.microsoft.com/ja-jp/dotnet/api/system.windows.media.animation.storyboard#events)
4
+
5
+
2
6
 
3
7
  ```C#
4
8
 
@@ -61,3 +65,105 @@
61
65
 
62
66
 
63
67
  `Storyboard`に組み込めるようなものなら、入れてしまってもよさそうですが。
68
+
69
+
70
+
71
+ ---
72
+
73
+
74
+
75
+ もちろんxamlでイベントつけてもいいですよ。
76
+
77
+ ```xaml
78
+
79
+ <Storyboard x:Key="MorningAnimation" Completed="Storyboard_Completed">
80
+
81
+ <ColorAnimationUsingKeyFrames Storyboard.TargetName="window" Storyboard.TargetProperty="(Panel.Background).(SolidColorBrush.Color)">
82
+
83
+ <EasingColorKeyFrame KeyTime="0:0:1" Value="#FFFFA400" />
84
+
85
+ </ColorAnimationUsingKeyFrames>
86
+
87
+ </Storyboard>
88
+
89
+ <Storyboard x:Key="EveningAnimation" Completed="Storyboard_Completed">
90
+
91
+ <ColorAnimationUsingKeyFrames Storyboard.TargetName="window" Storyboard.TargetProperty="(Panel.Background).(SolidColorBrush.Color)">
92
+
93
+ <EasingColorKeyFrame KeyTime="0:0:1" Value="#FF0388FF" />
94
+
95
+ </ColorAnimationUsingKeyFrames>
96
+
97
+ </Storyboard>
98
+
99
+ <Storyboard x:Key="NightAnimation" Completed="Storyboard_Completed">
100
+
101
+ <ColorAnimationUsingKeyFrames Storyboard.TargetName="window" Storyboard.TargetProperty="(Panel.Background).(SolidColorBrush.Color)">
102
+
103
+ <EasingColorKeyFrame KeyTime="0:0:1" Value="#FF02067A" />
104
+
105
+ </ColorAnimationUsingKeyFrames>
106
+
107
+ </Storyboard>
108
+
109
+ ```
110
+
111
+
112
+
113
+ ```C#
114
+
115
+ private void Click_Greeting(object sender, RoutedEventArgs e)
116
+
117
+ {
118
+
119
+ ph.ChangePhrase();
120
+
121
+
122
+
123
+ switch(ph.Now)
124
+
125
+ {
126
+
127
+ case Period.MORNING:
128
+
129
+ var sb = FindResource("MorningAnimation") as Storyboard;
130
+
131
+ BeginStoryboard(sb);
132
+
133
+ break;
134
+
135
+
136
+
137
+ case Period.EVENING:
138
+
139
+ sb = FindResource("EveningAnimation") as Storyboard;
140
+
141
+ BeginStoryboard(sb);
142
+
143
+ break;
144
+
145
+
146
+
147
+ case Period.NIGHT:
148
+
149
+ sb = FindResource("NightAnimation") as Storyboard;
150
+
151
+ BeginStoryboard(sb);
152
+
153
+ break;
154
+
155
+ }
156
+
157
+ }
158
+
159
+
160
+
161
+ private void Storyboard_Completed(object sender, EventArgs e)
162
+
163
+ {
164
+
165
+ ph.ChangePhraseAfterAnimation();
166
+
167
+ }
168
+
169
+ ```