blob: 4d9119266f2f5c754214b3b363861ef98f838b81 (
plain)
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
|
/*
* Copyright (C) 2007 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 com.example.android.apis.view;
import com.example.android.apis.R;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.TextView;
import android.widget.RadioGroup;
import android.widget.Button;
import android.widget.RadioButton;
import android.widget.LinearLayout;
public class RadioGroup1 extends Activity implements RadioGroup.OnCheckedChangeListener,
View.OnClickListener {
private TextView mChoice;
private RadioGroup mRadioGroup;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.radio_group_1);
mRadioGroup = (RadioGroup) findViewById(R.id.menu);
// test adding a radio button programmatically
RadioButton newRadioButton = new RadioButton(this);
newRadioButton.setText(R.string.radio_group_snack);
newRadioButton.setId(R.id.snack);
LinearLayout.LayoutParams layoutParams = new RadioGroup.LayoutParams(
RadioGroup.LayoutParams.WRAP_CONTENT,
RadioGroup.LayoutParams.WRAP_CONTENT);
mRadioGroup.addView(newRadioButton, 0, layoutParams);
// test listening to checked change events
String selection = getString(R.string.radio_group_selection);
mRadioGroup.setOnCheckedChangeListener(this);
mChoice = (TextView) findViewById(R.id.choice);
mChoice.setText(selection + mRadioGroup.getCheckedRadioButtonId());
// test clearing the selection
Button clearButton = (Button) findViewById(R.id.clear);
clearButton.setOnClickListener(this);
}
public void onCheckedChanged(RadioGroup group, int checkedId) {
String selection = getString(R.string.radio_group_selection);
String none = getString(R.string.radio_group_none);
mChoice.setText(selection +
(checkedId == View.NO_ID ? none : checkedId));
}
public void onClick(View v) {
mRadioGroup.clearCheck();
}
}
|
