一组图片，自定义页码控件

addison_lin

01	import java.util.ArrayList;

02

03	import com.cric.R;

04

05	import android.content.Context;

06	import android.content.res.Resources;

07	import android.graphics.drawable.Drawable;

08	import android.util.AttributeSet;

09	import android.widget.ImageView;

10	import android.widget.LinearLayout;

11

12	public class PageIndicator extends LinearLayout {

13

14	private Context mContext;

15	private Drawable mCurrentDrawable;

16	private Drawable mNormalDrawable;

17	private int mCurrentPage = 0;

18	private int mMaxPage = 0 ;

19	private ArrayList<ImageView> arrList ;

20	public PageIndicator(Context context) {

21	super(context);

22	this.mContext = context;

23	// TODO Auto-generated constructor stub

24

}

25

26	public PageIndicator(Context paramContext, AttributeSet paramAttributeSet)

27

{

28	super(paramContext, paramAttributeSet);

29	this.mContext = paramContext;

30	loadDefaultDrawable();

31

}

32

33	private void loadDefaultDrawable()

34

{

35	Resources localResources = this.mContext.getResources();

36	this.mNormalDrawable = localResources.getDrawable(R.drawable.indicator);

37	this.mCurrentDrawable = localResources.getDrawable(R.drawable.indicator_cur);

38

}

39

40	public void setMaxPage(int maxNum)

41

{

42	this.mMaxPage = maxNum;

43

init();

44

}

45

46	private void init(){

47	removeAllViews();

48	arrList = new ArrayList<ImageView>();

49	int i = 0 ;

50	if(i>=this.mMaxPage)

51

{

52

return;

53

}

54	//      ImageView localImageView = new ImageView(this.mContext);

55	//      localImageView.setPadding(5, 0, 5, 0);

56	//      if(i==this.mCurrentPage)

57

//      {

58	//          localImageView.setImageDrawable(this.mCurrentDrawable);

59

//      }

60	for (i = 0; i < this.mMaxPage; i++) {

61	ImageView localImageView = new ImageView(this.mContext);

62	localImageView.setPadding(5, 0, 5, 0);

63	addView(localImageView);

64

if(i==0){

65	localImageView.setImageDrawable(this.mCurrentDrawable);

66	this.arrList.add(localImageView);

67

}else

68

{

69	localImageView.setImageDrawable(this.mNormalDrawable);

70	this.arrList.add(localImageView);

71

}

72

73

}

74

75

}

76

77	public void pre(){

78	setPage(-1+this.mCurrentPage);

79

}

80

81	public void next(){

82	setPage(1+this.mCurrentPage);

83

}

84

85	public void setPage(int curPage)

86

{

87	if(curPage>=this.mMaxPage || curPage<0 || curPage==this.mCurrentPage)

88

{

89

return;

90

}

91	this.arrList.get(curPage).setImageDrawable(this.mCurrentDrawable);

92	this.arrList.get(this.mCurrentPage).setImageDrawable(this.mNormalDrawable);

93	this.mCurrentPage = curPage;

94

}

95

96

97

98

}