今天在项目中遇到了底部TabHost，顺便就写了一个底部TabHost的api继承即可使用非常简单，以下为源代码：
首先是自定义的TabHostActivity，如果要使用该TabHost继承该类即可
1 package com.api;
2
3 import android.app.TabActivity;
4 import android.content.Intent;
5 import android.os.Bundle;
6 import android.view.LayoutInflater;
7 import android.view.View;
8 import android.widget.LinearLayout;
9 import android.widget.TabHost;
10 import android.widget.TabHost.OnTabChangeListener;
11 import android.widget.TabHost.TabSpec;
12 import android.widget.TabWidget;
13 import android.widget.TextView;
14
15 public abstract class TabHostActivity extends TabActivity {
16
17 private TabHost mTabHost;
18 private TabWidget mTabWidget;
19 private LayoutInflater mLayoutflater;
20
21 @Override
22 protected void onCreate(Bundle savedInstanceState) {
23 super.onCreate(savedInstanceState);
24 // set theme because we do not want the shadow
25 setTheme(R.style.Theme_Tabhost);
26 setContentView(R.layout.api_tab_host);
27
28 mLayoutflater = getLayoutInflater();
29
30 mTabHost = getTabHost();
31 mTabWidget = getTabWidget();
32 //mTabWidget.setStripEnabled(false); // need android2.2
33
34 prepare();
35
36 initTop();
37 initTabSpec();
38 }
39
40 private void initTop() {
41 View child = getTop();
42 LinearLayout layout = (LinearLayout) findViewById(R.id.tab_top);
43 layout.addView(child);
44 }
45
46 private void initTabSpec() {
47
48 int count = getTabItemCount();
49
50 for (int i = 0; i < count; i++) {
51 // set text view
52 View tabItem = mLayoutflater.inflate(R.layout.api_tab_item, null);
53
54 TextView tvTabItem = (TextView) tabItem.findViewById(R.id.tab_item_tv);
55 setTabItemTextView(tvTabItem, i);
56 // set id
57 String tabItemId = getTabItemId(i);
58 // set tab spec
59 TabSpec tabSpec = mTabHost.newTabSpec(tabItemId);
60 tabSpec.setIndicator(tabItem);
61 tabSpec.setContent(getTabItemIntent(i));
62
63 mTabHost.addTab(tabSpec);
64 }
65
66
67
68 }
69
70
71
72
73
74
75
76 /** 在初始化界面之前调用 */
77 protected void prepare() {
78 // do nothing or you override it
79 }
80
81 /** 自定义头部布局 */
82 protected View getTop() {
83 // do nothing or you override it
84 return null;
85 }
86
87 protected int getTabCount() {
88 return mTabHost.getTabWidget().getTabCount();
89 }
90
91 /** 设置TabItem的图标和标题等*/
92 abstract protected void setTabItemTextView(TextView textView, int position);
93
94 abstract protected String getTabItemId(int position);
95
96 abstract protected Intent getTabItemIntent(int position);
97
98 abstract protected int getTabItemCount();
99
100 protected void setCurrentTab(int index) {
101 mTabHost.setCurrentTab(index);
102 }
103
104 protected void focusCurrentTab(int index) {
105 mTabWidget.focusCurrentTab(index);
106 }
107
108 }
需要再创建一个javabean TabItem
1 package com.api.example.app;
2
3 import android.content.Intent;
4
5 public class TabItem {
6 private String title; // tab item title
7 private int icon; // tab item icon
8 private int bg; // tab item background
9 private Intent intent; // tab item intent
10
11 public TabItem(String title, int icon, int bg, Intent intent) {
12 super();
13 this.title = title;
14 this.icon = icon;
15 this.bg = bg;
16 this.intent = intent;
17 }
18
19 public String getTitle() {
20 return title;
21 }
22
23 public void setTitle(String title) {
24 this.title = title;
25 }
26
27 public int getIcon() {
28 return icon;
29 }
30
31 public void setIcon(int icon) {
32 this.icon = icon;
33 }
34
35 public int getBg() {
36 return bg;
37 }
38
39 public void setBg(int bg) {
40 this.bg = bg;
41 }
42
43 public Intent getIntent() {
44 return intent;
45 }
46
47 public void setIntent(Intent intent) {
48 this.intent = intent;
49 }
50 }
然后创建一个Activity继承上面的TabHostActivity即可使用该自定义的TabHost了
1 package com.api.example.app;
2
3 import java.util.ArrayList;
4 import java.util.List;
5
6 import android.content.Intent;
7 import android.os.Bundle;
8 import android.view.LayoutInflater;
9 import android.view.View;
10 import android.widget.TabWidget;
11 import android.widget.TextView;
12
13 import com.api.R;
14 import com.api.TabHostActivity;
15
16 /**
17 * <p>整个流程就像使用ListView自定BaseAdapter一样</p>
18 *
19 * <p>如果要自定义TabHostActivity的Theme，并且不想要头部阴影
20 * 一定要添加这个android:windowContentOverlay = null</p>
21 *
22 * <p>如果想在别的项目里面使用TabHostActivity
23 * 可以项目的属性里面找到Android，然后在Library部分添加这个项目(Api)
24 * <a href="http://www.cnblogs.com/qianxudetianxia/archive/2011/05/01/2030232.html">如何添加</a></p>
25 * */
26 public class ExampleActivity extends TabHostActivity {
27
28 List<TabItem> mItems;
29 private LayoutInflater mLayoutInflater;
30
31 /**在初始化TabWidget前调用
32 * 和TabWidget有关的必须在这里初始化*/
33 @Override
34 protected void prepare() {
35 TabItem home = new TabItem(
36 "首页", // title
37 R.drawable.icon_home, // icon
38 R.drawable.example_tab_item_bg, // background
39 new Intent(this, Tab1Activity.class)); // intent
40
41 TabItem info = new TabItem(
42 "资料",
43 R.drawable.icon_selfinfo,
44 R.drawable.example_tab_item_bg,
45 new Intent(this, Tab2Activity.class));
46
47 TabItem msg = new TabItem(
48 "信息",
49 R.drawable.icon_meassage,
50 R.drawable.example_tab_item_bg,
51 new Intent(this, Tab3Activity.class));
52
53 TabItem square = new TabItem(
54 "广场",
55 R.drawable.icon_square,
56 R.drawable.example_tab_item_bg,
57 new Intent(this, Tab4Activity.class));
58
59 TabItem more = new TabItem(
60 "更多",
61 R.drawable.icon_more,
62 R.drawable.example_tab_item_bg,
63 new Intent(this, Tab5Activity.class));
64
65 mItems = new ArrayList<TabItem>();
66 mItems.add(home);
67 mItems.add(info);
68 mItems.add(msg);
69 mItems.add(square);
70 mItems.add(more);
71
72 // 设置分割线
73 TabWidget tabWidget = getTabWidget();
74 tabWidget.setDividerDrawable(R.drawable.tab_divider);
75
76 mLayoutInflater = getLayoutInflater();
77 }
78
79 @Override
80 protected void onCreate(Bundle savedInstanceState) {
81 super.onCreate(savedInstanceState);
82 setCurrentTab(0);
83 }
84
85 /**tab的title，icon，边距设定等等*/
86 @Override
87 protected void setTabItemTextView(TextView textView, int position) {
88 textView.setPadding(3, 3, 3, 3);
89 textView.setText(mItems.get(position).getTitle());
90 textView.setBackgroundResource(mItems.get(position).getBg());
91 textView.setCompoundDrawablesWithIntrinsicBounds(0, mItems.get(position).getIcon(), 0, 0);
92
93 }
94
95 /**tab唯一的id*/
96 @Override
97 protected String getTabItemId(int position) {
98 return mItems.get(position).getTitle(); // 我们使用title来作为id，你也可以自定
99 }
100
101 /**点击tab时触发的事件*/
102 @Override
103 protected Intent getTabItemIntent(int position) {
104 return mItems.get(position).getIntent();
105 }
106
107 @Override
108 protected int getTabItemCount() {
109 return mItems.size();
110 }
111
112 /**自定义头部文件*/
113 @Override
114 protected View getTop() {
115 return mLayoutInflater.inflate(R.layout.example_top, null);
116 }
117
118 }
效果如下：
时间： 2024-10-10 19:07:28