main.xml布局文件:
Java代码 收藏代码
  1. <?xmlversion="1.0"encoding="utf-8"?>
  2. <LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"
  3. android:orientation="vertical"android:layout_width="fill_parent"
  4. android:layout_height="fill_parent">
  5. <Galleryandroid:id="@+id/gallery"android:layout_width="fill_parent"
  6. android:layout_height="wrap_content"android:layout_marginTop="30dp"
  7. android:unselectedAlpha="1"android:spacing="1dip"/>
  8. </LinearLayout>


values/attrs.xml:
Java代码 收藏代码
  1. <?xmlversion="1.0"encoding="utf-8"?>
  2. <resources>
  3. <declare-styleablename="Gallery">
  4. <attrname="android:galleryItemBackground"/>
  5. </declare-styleable>
  6. </resources>


values/strings.xml:
Java代码 收藏代码
  1. <?xmlversion="1.0"encoding="utf-8"?>
  2. <resources>
  3. <stringname="hello">HelloWorld,Date!</string>
  4. <stringname="app_name">丸子-Widget</string>
  5. </resources>


drawable/tab_button_select.xml:
Java代码 收藏代码
  1. <?xmlversion="1.0"encoding="utf-8"?>
  2. <shapexmlns:android="http://schemas.android.com/apk/res/android">
  3. <gradientandroid:startColor="#FF1B1B1B"android:endColor="#FF969696"
  4. android:angle="90.0">
  5. </gradient>
  6. </shape>


drawable/tab_button_unselect.xml:
Java代码 收藏代码
  1. <?xmlversion="1.0"encoding="utf-8"?>
  2. <shapexmlns:android="http://schemas.android.com/apk/res/android">
  3. <gradientandroid:startColor="#FF000000"android:endColor="#FF474747"
  4. android:angle="90.0">
  5. </gradient>
  6. </shape>


IaiaiActivity.java类:
Java代码 收藏代码
  1. packagecom.iaiai.activity;
  3. importjava.util.Arrays;
  4. importjava.util.Collections;
  5. importjava.util.List;
  7. importandroid.app.Activity;
  8. importandroid.content.Context;
  9. importandroid.content.res.TypedArray;
  10. importandroid.graphics.Color;
  11. importandroid.os.Bundle;
  12. importandroid.view.Gravity;
  13. importandroid.view.View;
  14. importandroid.view.ViewGroup;
  15. importandroid.widget.AdapterView;
  16. importandroid.widget.AdapterView.OnItemClickListener;
  17. importandroid.widget.BaseAdapter;
  18. importandroid.widget.Gallery;
  19. importandroid.widget.TextView;
  21. /**
  22. *
  23. *<p>
  24. *Title:IaiaiActivity.java
  25. *</p>
  26. *<p>
  27. *E-Mail:[email protected]
  28. *</p>
  29. *<p>
  30. *QQ:176291935
  31. *</p>
  32. *<p>
  33. *Http:iaiai.iteye.com
  34. *</p>
  35. *<p>
  36. *Createtime:2011-6-26
  37. *</p>
  38. *
  39. *@author丸子
  40. *@version0.0.1
  41. */
  42. publicclassIaiaiActivityextendsActivity{
  44. privateGallerygallery;
  45. privateTabAdaptertextAdapter;
  47. privatestaticfinalString[]PROGRAM_NAMES={"中央一台","中央二台","中央三台",
  48. "中央四台","中央五台","中央六台","中央七台","中央八台",};
  50. @Override
  51. publicvoidonCreate(BundlesavedInstanceState){
  52. super.onCreate(savedInstanceState);
  53. setContentView(R.layout.main);
  55. gallery=(Gallery)findViewById(R.id.gallery);
  56. textAdapter=newTabAdapter(this,Arrays.asList(PROGRAM_NAMES));
  57. gallery.setAdapter(textAdapter);
  58. gallery.setOnItemClickListener(newOnItemClickListener(){
  60. @Override
  61. publicvoidonItemClick(AdapterView<?>parent,Viewview,
  62. intposition,longid){
  63. TabAdapteradapter=(TabAdapter)parent.getAdapter();
  64. adapter.setSelectedPos(position);
  65. }
  67. });
  68. }
  70. publicclassTabAdapterextendsBaseAdapter{
  71. privateContextmContext;
  72. privateList<String>mList;
  73. privateintmSelectedPos;
  75. publicTabAdapter(Contextcontext,List<String>list){
  76. mContext=context;
  77. TypedArraya=obtainStyledAttributes(R.styleable.Gallery);
  78. a.recycle();
  79. if(list==null)
  80. list=Collections.emptyList();
  81. mList=list;
  82. }
  84. publicvoidsetSelectedPos(intpos){
  85. if(pos!=mSelectedPos){
  86. mSelectedPos=pos;
  87. notifyDataSetChanged();
  88. }
  89. }
  91. publicintgetSelectedPos(){
  92. returnmSelectedPos;
  93. }
  95. publicintgetCount(){
  96. returnmList.size();
  97. }
  99. publicObjectgetItem(intposition){
  100. returnmList.get(position);
  101. }
  103. publiclonggetItemId(intposition){
  104. returnposition;
  105. }
  107. publicViewgetView(intposition,ViewconvertView,ViewGroupparent){
  108. TextViewtext=null;
  109. if(convertView==null){
  110. text=newTextView(mContext);
  111. }else{
  112. text=(TextView)convertView;
  113. }
  115. text.setTextColor(Color.WHITE);
  116. text.setText(mList.get(position));
  118. text.setLayoutParams(newGallery.LayoutParams(102,40));
  119. text.setGravity(Gravity.CENTER);
  121. if(position==mSelectedPos)
  122. text.setBackgroundResource(R.drawable.tab_button_select);
  123. else
  124. text.setBackgroundResource(R.drawable.tab_button_unselect);
  126. returntext;
  127. }
  128. }
  130. }


运行结果:
Android 使用Gallery实现Tab_第1张图片

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