控件_RadioGroup&&RadioButton(单选按钮)和Toast

 1 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

 2     xmlns:tools="http://schemas.android.com/tools"

 3     android:orientation="vertical"

 4     android:layout_width="match_parent"

 5     android:layout_height="match_parent"

 6     android:paddingBottom="@dimen/activity_vertical_margin"

 7     android:paddingLeft="@dimen/activity_horizontal_margin"

 8     android:paddingRight="@dimen/activity_horizontal_margin"

 9     android:paddingTop="@dimen/activity_vertical_margin"

10     tools:context=".MainActivity" >

11 

12     <RadioGroup

13         android:id="@+id/genderGroup"

14         android:layout_width="wrap_content" 

15         android:layout_height="wrap_content" 

16         android:orientation="vertical"

17         >

18         <RadioButton

19             android:id="@+id/man"

20              android:layout_width="wrap_content" 

21               android:layout_height="wrap_content" 

22               android:text="男"

23             />

24         <RadioButton

25         android:id="@+id/woman"

26          android:layout_width="wrap_content" 

27           android:layout_height="wrap_content" 

28           android:text="女"

29           />

30         

31     </RadioGroup>

32 

33 </LinearLayout>

 1 import android.app.Activity;

 2 import android.os.Bundle;

 3 import android.widget.CompoundButton;

 4 import android.widget.RadioButton;

 5 import android.widget.RadioGroup;

 6 import android.widget.RadioGroup.OnCheckedChangeListener;

 7 import android.widget.Toast;

 8 

 9 public class MainActivity extends Activity {

10     private RadioGroup genderGroup;

11     private RadioButton man;

12     private RadioButton woman;

13     protected void onCreate(Bundle savedInstanceState) {

14         super.onCreate(savedInstanceState);

15         setContentView(R.layout.activity_main);

16         

17         genderGroup = (RadioGroup) findViewById(R.id.genderGroup);

18         man = (RadioButton) findViewById(R.id.man);

19         woman = (RadioButton) findViewById(R.id.woman);

20         

21         RadioGroupListener Grouplistener = new RadioGroupListener();

22         genderGroup.setOnCheckedChangeListener(Grouplistener);

23         RadioButtonListener Buttonlistener = new RadioButtonListener();

24         man.setOnCheckedChangeListener(Buttonlistener);

25         woman.setOnCheckedChangeListener(Buttonlistener);

26     }

27     

28     class RadioButtonListener implements android.widget.CompoundButton.OnCheckedChangeListener{

29         public void onCheckedChanged(CompoundButton buttonView,boolean isChecked) {

30             System.out.println(isChecked);

31         }

32         

33     }

34     class RadioGroupListener implements OnCheckedChangeListener{

35         public void onCheckedChanged(RadioGroup group, int checkedId) {

36             if(man.getId()==checkedId){

37                 System.out.println("man");//这里不是简单的输出，要有针对的处理，比如更改数据库里的内容

38                 Toast.makeText(MainActivity.this, "man", Toast.LENGTH_SHORT).show();

39             }else if(woman.getId()==checkedId){

40                 System.out.println("woman");

41                 Toast.makeText(MainActivity.this, "woman", Toast.LENGTH_SHORT).show();

42             }

43         }

44         

45     }

46 }

 

 

 

RadioGroup和CheckBox

 1 import android.os.Bundle;

 2 import android.widget.CheckBox;

 3 import android.widget.CompoundButton;

 4 import android.widget.RadioButton;

 5 import android.widget.RadioGroup;

 6 import android.widget.Toast;

 7 import android.app.Activity;

 8 

 9 

10 public class Activity07 extends Activity {

11     //对控件对象进行声明

12     private RadioGroup genderGroup = null;

13     private RadioButton femaleButton = null;

14     private RadioButton maleButton = null;

15     private CheckBox swimBox = null;

16     private CheckBox runBox = null;

17     private CheckBox readBox = null;

18     @Override

19     protected void onCreate(Bundle savedInstanceState) {

20         super.onCreate(savedInstanceState);

21         setContentView(R.layout.radio);

22         

23         //通过控件的ID来得到代表控件的对象

24         genderGroup = (RadioGroup)findViewById(R.id.genderGroup);

25         femaleButton = (RadioButton)findViewById(R.id.femaleButton);

26         maleButton = (RadioButton)findViewById(R.id.maleButton);

27         swimBox = (CheckBox)findViewById(R.id.swim);

28         runBox = (CheckBox)findViewById(R.id.run);

29         readBox = (CheckBox)findViewById(R.id.read);

30         

31         //为RadioGroup设置监听器，需要注意的是，这里的监听器和Button控件的监听器有所不同

32         genderGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {

33             

34             @Override

35             public void onCheckedChanged(RadioGroup group, int checkedId) {//传进来的是控件的id

36                 if(femaleButton.getId() == checkedId){

37                     System.out.println("famale");//这里不是简单的输出，要有针对的处理，比如更改数据库里的内容

38                     Toast.makeText(Activity07.this,"famale", Toast.LENGTH_SHORT).show();//用于提示用户

39                 }

40                 else if(maleButton.getId() == checkedId){

41                     System.out.println("male");

42                     Toast.makeText(Activity07.this,"male", Toast.LENGTH_SHORT).show();//用于提示用户

43                 }

44                 

45             }

46         });

47         

48       //为多选按钮添加监听器

49         swimBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {

50             @Override

51             public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {//传进来的是是否选中

52                 if(isChecked){

53                     System.out.println("swim is checked");

54                 }else{

55                     System.out.println("swim is unchecked");

56                 }

57                 

58             }

59         });

60         

61         runBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {

62             @Override

63             public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {

64                 if(isChecked){

65                     System.out.println("run is checked");

66                 }else{

67                     System.out.println("run is unchecked");

68                 }

69                 

70             }

71         });

72         

73         readBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {

74             @Override

75             public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {

76                 if(isChecked){

77                     System.out.println("read is checked");

78                 }else{

79                     System.out.println("read is unchecked");

80                 }

81                 

82             }

83         });

84     }

85 }

 

 1 <?xml version="1.0" encoding="utf-8"?>

 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

 3     android:orientation="vertical"

 4     android:layout_width="fill_parent"

 5     android:layout_height="fill_parent"

 6     >

 7 <RadioGroup

 8     android:id="@+id/genderGroup"

 9     android:layout_width="wrap_content" 

10     android:layout_height="wrap_content" 

11     android:orientation="vertical"

12     >

13     <RadioButton

14         android:id="@+id/femaleButton"

15          android:layout_width="wrap_content" 

16           android:layout_height="wrap_content" 

17           android:text="@string/female"

18           />

19     <RadioButton

20         android:id="@+id/maleButton"

21          android:layout_width="wrap_content" 

22           android:layout_height="wrap_content" 

23           android:text="@string/male"

24           />

25 </RadioGroup>

26 

27 

28 <CheckBox

29     android:id="@+id/swim"

30      android:layout_width="wrap_content" 

31       android:layout_height="wrap_content" 

32       android:text="@string/swim"

33       />

34 <CheckBox

35     android:id="@+id/run"

36      android:layout_width="wrap_content" 

37       android:layout_height="wrap_content" 

38       android:text="@string/run"

39       />

40 <CheckBox

41     android:id="@+id/read"

42      android:layout_width="wrap_content" 

43       android:layout_height="wrap_content" 

44       android:text="@string/read"

45       />

46 </LinearLayout>