主题 : android入门之单选按钮(RadioButton) 复制链接 | 浏览器收藏 | 打印
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楼主  发表于: 2013-08-28 14:18
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 android入门之单选按钮(RadioButton)

复制代码
  1. MainActivity.java
  2. package com.jk.test;
  4. import android.app.Activity;
  5. import android.os.Bundle;
  6. import android.view.Menu;
  7. import android.widget.CompoundButton;
  8. import android.widget.CompoundButton.OnCheckedChangeListener;
  9. import android.widget.RadioButton;
  10. import android.widget.RadioGroup;
  12. public class MainActivity extends Activity {
  13. private RadioButton eatButton;
  14. private RadioButton sleepButton;
  15. private RadioButton dotaButton;
  16. private RadioGroup groupButton;
  18. protected void onCreate(Bundle savedInstanceState) {
  19. super.onCreate(savedInstanceState);
  20. setContentView(R.layout.activity_main);
  21. eatButton = (RadioButton) findViewById(R.id.eatButtonid);
  22. sleepButton = (RadioButton) findViewById(R.id.sleepButtonid);
  23. dotaButton = (RadioButton) findViewById(R.id.dotaButtonid);
  24. RadioGroupListener listener1 = new RadioGroupListener();
  25. groupButton.setOnCheckedChangeListener(listener1);
  26. RadioButtonListener listener2 = new RadioButtonListener();
  27. eatButton.setOnCheckedChangeListener(listener2);
  28. sleepButton.setOnCheckedChangeListener(listener2);
  29. dotaButton.setOnCheckedChangeListener(listener2);
  30. }
  31. class RadioButtonListener implements OnCheckedChangeListener{
  32. public void onCheckedChanged(CompoundButton v, boolean isChecked) {
  33. System.out.println(v.getId()+"isChecked--->" + isChecked);
  34. }
  35. }
  36. class RadioGroupListener implements android.widget.RadioGroup.OnCheckedChangeListener{
  37. public void onCheckedChanged(RadioGroup v, int checkedId) {
  38. if(checkedId == eatButton.getId())
  39. System.out.println("选中了eatButton");
  40. else if(checkedId == sleepButton.getId())
  41. System.out.println("选中了sleepButton");
  42. else if(checkedId == dotaButton.getId())
  43. System.out.println("选中了dotaButton");
  44. }
  45. }
  46. public boolean onCreateOptionsMenu(Menu menu) {
  47. // Inflate the menu; this adds items to the action bar if it is present.
  48. getMenuInflater().inflate(R.menu.main, menu);
  49. return true;
  50. }
  51. }
  53. activity_main.xml
  54. xmlns:tools="http://schemas.android.com/tools"
  55. android:layout_width="match_parent"
  56. android:layout_height="match_parent"
  57. android:paddingBottom="@dimen/activity_vertical_margin"
  58. android:paddingLeft="@dimen/activity_horizontal_margin"
  59. android:paddingRight="@dimen/activity_horizontal_margin"
  60. android:paddingTop="@dimen/activity_vertical_margin"
  61. tools:context=".MainActivity" >
  62. android:id="@+id/radioGroupId"
  63. android:layout_width="wrap_content"
  64. android:layout_height="wrap_content"
  65. android:orientation="horizontal">
  66. android:id="@+id/eatButtonid"
  67. android:layout_width="wrap_content"
  68. android:layout_height="wrap_content"
  69. android:text="吃饭"
  70. />
  71. android:id="@+id/sleepButtonid"
  72. android:layout_width="wrap_content"
  73. android:layout_height="wrap_content"
  74. android:text="睡觉"
  75. />
  76. android:id="@+id/dotaButtonid"
  77. android:layout_width="wrap_content"
  78. android:layout_height="wrap_content"
  79. android:text="dota"
  80. />
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