导语
如下图所示,这是一个导航选择弹框。进行单项选择,然后会监听回调选择的事件。问题是Android的RadioButton是一般是放在RadioGroup中进行管理的,而RadioGroup又是线性布局,即单行有效,多行无效。如图那种就需要两个RadioGroup来进行合作。那么如果进行合作呢?
分析:RadioGroup多行显示其实就是两个RadioGroup进行切换,使用RadioGroup的clearCheck()方法进行操作。
但是在使用clearCheck()之前,如果RadioGroup已经设置过监听,执行就会报StackOveflowError错误。
正确方法如下:
先调用
setOnCheckedChangeListener(null)
再调用
clearCheck()然后重新setOnCheckedChangeListener(checkedListener)。
案例代码
1、布局如下:
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
|
< RadioGroup android:id = "@+id/rg_manhole_state_one" android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:layout_marginTop = "5dp" android:layout_toRightOf = "@id/tv_manhole_state" android:orientation = "horizontal" android:paddingTop = "@dimen/padding_5" > < RadioButton android:id = "@+id/rb_intact" android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:button = "@null" android:drawableLeft = "@drawable/bg_radiobutten" android:drawablePadding = "@dimen/padding_10" android:text = "@string/intact" android:textColor = "@color/white" android:textSize = "@dimen/small_size" /> < RadioButton android:id = "@+id/rb_lose" android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:layout_marginLeft = "30dp" android:button = "@null" android:drawableLeft = "@drawable/bg_radiobutten" android:drawablePadding = "@dimen/padding_10" android:text = "@string/lose" android:textColor = "@color/white" android:textSize = "@dimen/small_size" /> < RadioButton android:id = "@+id/rb_sunken" android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:layout_marginLeft = "30dp" android:button = "@null" android:drawableLeft = "@drawable/bg_radiobutten" android:drawablePadding = "@dimen/padding_10" android:text = "@string/sunken" android:textColor = "@color/white" android:textSize = "@dimen/small_size" /> </ RadioGroup > < RadioGroup android:id = "@+id/rg_manhole_state_two" android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:layout_marginLeft = "@dimen/padding_100" android:layout_marginTop = "5dp" android:orientation = "horizontal" android:paddingTop = "@dimen/padding_5" > < RadioButton android:id = "@+id/rb_occupation" android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:button = "@null" android:drawableLeft = "@drawable/bg_radiobutten" android:drawablePadding = "@dimen/padding_10" android:text = "@string/occupation" android:textColor = "@color/white" android:textSize = "@dimen/small_size" /> < RadioButton android:id = "@+id/rb_damage" android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:layout_marginLeft = "30dp" android:button = "@null" android:drawableLeft = "@drawable/bg_radiobutten" android:drawablePadding = "@dimen/padding_10" android:text = "@string/damage" android:textColor = "@color/white" android:textSize = "@dimen/small_size" /> < RadioButton android:id = "@+id/rb_heave" android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:layout_marginLeft = "30dp" android:button = "@null" android:drawableLeft = "@drawable/bg_radiobutten" android:drawablePadding = "@dimen/padding_10" android:text = "@string/heave" android:textColor = "@color/white" android:textSize = "@dimen/small_size" /> </ RadioGroup > |
2、具体操作如下:
声明控件:
1
2
3
4
|
@InjectView (R.id.rg_manhole_state_one) RadioGroup rgManholeStateOne; @InjectView (R.id.rg_manhole_state_two) RadioGroup rgManholeStateTwo; |
设置监听:
1
2
|
rgManholeStateOne.setOnCheckedChangeListener( new OnMyManholeStateOneCheckedChangeListener()); rgManholeStateTwo.setOnCheckedChangeListener( new OnMyManholeStateTwoCheckedChangeListener()); |
实现单选:
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
|
private class OnMyManholeStateOneCheckedChangeListener implements RadioGroup.OnCheckedChangeListener { @Override public void onCheckedChanged(RadioGroup radioGroup, int position) { switch (position) { case R.id.rb_intact: if (rbIntact.isChecked()) rgManholeStateTwo.clearCheck(); break ; case R.id.rb_lose: if (rbLose.isChecked()) rgManholeStateTwo.clearCheck(); break ; case R.id.rb_sunken: if (rbSunken.isChecked()) rgManholeStateTwo.clearCheck(); break ; } } } private class OnMyManholeStateTwoCheckedChangeListener implements RadioGroup.OnCheckedChangeListener { @Override public void onCheckedChanged(RadioGroup radioGroup, int position) { switch (position) { case R.id.rb_occupation: if (rbOccupation.isChecked()) rgManholeStateOne.clearCheck(); break ; case R.id.rb_damage: if (rbDamage.isChecked()) rgManholeStateOne.clearCheck(); break ; case R.id.rb_heave: if (rbHeave.isChecked()) rgManholeStateOne.clearCheck(); break ; } } } |
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:https://blog.csdn.net/csdn_aiyang/article/details/70242504