先看看效果图:
第一篇Tab系列的文章首先实现这种风格的底部Tab:背景条颜色不变,我们是用了深灰的颜色,图标会发生相应的变化,当选中某个标签后该标签的背板会由正常的颜色变为不正常,哈哈,是变为加深的灰色,更加凸显当前页的效果,所以我比较这种类型。在这里文字的变化我没处理,如果变色使用个selector就解决了,这里不再赘述。
再看一下整个Project的结构,如下
下面逐一介绍一下实现过程,具体实现还是看注释吧,代码也不是很多,就不啰嗦了。
step1:首先是主界面MainTabActivity.java
package sun.geoffery.fragmenttabhost; import android.os.Bundle; import android.support.v4.app.FragmentActivity; import android.support.v4.app.FragmentTabHost; import android.view.LayoutInflater; import android.view.View; import android.widget.ImageView; import android.widget.TabHost.TabSpec; import android.widget.TextView; /** * All rights Reserved, Designed By GeofferySun * @Title: MainTabActivity.java * @Package sun.geoffery.fragmenttabhost * @Description:自定义TabHost * @author: GeofferySun * @date: 2014-9-28 下午11:33:15 * @version V1.0 */ public class MainTabActivity extends FragmentActivity { // 定义FragmentTabHost对象 private FragmentTabHost mTabHost; // 定义一个布局 private LayoutInflater mInflater; // 定义数组来存放Fragment界面 private Class mFragmentAry[] = { FragmentPage0.class, FragmentPage1.class, FragmentPage2.class, FragmentPage3.class, FragmentPage4.class }; // 定义数组来存放按钮图片 private int mImgAry[] = { R.drawable.sl_rbtn_home, R.drawable.sl_rbtn_atme, R.drawable.sl_rbtn_msg, R.drawable.sl_rbtn_square, R.drawable.sl_rbtn_data }; // Tab选项卡的文字 private String mTxtAry[] = { "首页", "@我", "消息", "广场", "资料" }; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main_tab_layout); initView(); } /** * 初始化组件 */ private void initView() { // 实例化布局对象 mInflater = LayoutInflater.from(this); // 实例化TabHost对象,得到TabHost mTabHost = (FragmentTabHost) findViewById(android.R.id.tabhost); mTabHost.setup(this, getSupportFragmentManager(), R.id.realtabcontent); // 得到fragment的个数 int count = mFragmentAry.length; for (int i = 0; i < count; i++) { // 为每一个Tab按钮设置图标、文字和内容 TabSpec tabSpec = mTabHost.newTabSpec(mTxtAry[i]).setIndicator(getTabItemView(i)); // 将Tab按钮添加进Tab选项卡中 mTabHost.addTab(tabSpec, mFragmentAry[i], null); // 设置Tab按钮的背景 mTabHost.getTabWidget().getChildAt(i).setBackgroundResource(R.drawable.selector_tab_background); } } /** * 给Tab按钮设置图标和文字 * @param index * @return */ private View getTabItemView(int index) { View view = mInflater.inflate(R.layout.tab_item_view, null); ImageView imageView = (ImageView) view.findViewById(R.id.imageview); imageView.setImageResource(mImgAry[index]); TextView textView = (TextView) view.findViewById(R.id.textview); textView.setText(mTxtAry[index]); return view; } }
step2:每一个标签页对应的页面FragmentPage0.java
package sun.geoffery.fragmenttabhost; import android.os.Bundle; import android.support.v4.app.Fragment; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; public class FragmentPage0 extends Fragment { @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { return inflater.inflate(R.layout.fragment_0, null); } }
step3:单选标签的背板文件selector_tab_background.xml
<?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:drawable="@drawable/bg_bottombar_active" android:state_pressed="true"/> <item android:drawable="@drawable/bg_bottombar_active" android:state_selected="true"/> </selector>
step4:标签的图标sl_rbtn_atme.xml,有点击效果就要这么搞
<?xml version="1.0" encoding="utf-8"?><!-- tab栏按钮 --> <selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:drawable="@drawable/sl_rbtn_atme_on" android:state_selected="true" /> <item android:drawable="@drawable/sl_rbtn_atme_off" /> </selector>
step5:主界面布局main_tab_layout.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <FrameLayout android:id="@+id/realtabcontent" android:layout_width="fill_parent" android:layout_height="0dip" android:layout_weight="1" /> <android.support.v4.app.FragmentTabHost android:id="@android:id/tabhost" android:layout_width="fill_parent" android:layout_height="60dp" android:background="@drawable/bg_bottombar" > <FrameLayout android:id="@android:id/tabcontent" android:layout_width="0dp" android:layout_height="0dp" android:layout_weight="0" /> </android.support.v4.app.FragmentTabHost> </LinearLayout>
step6:每个标签的布局tab_item_view.xml,上边一个图标,下边一个文字
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="wrap_content" android:layout_height="wrap_content" android:gravity="center" android:orientation="vertical" > <ImageView android:id="@+id/imageview" android:layout_width="wrap_content" android:layout_height="wrap_content" android:contentDescription="@string/app_name" android:focusable="false" android:padding="3dp" android:src="@drawable/ic_launcher" /> <TextView android:id="@+id/textview" android:layout_width="wrap_content" android:layout_height="wrap_content" android:paddingBottom="7dp" android:paddingTop="3dp" android:text="@string/app_name" android:textColor="#ffffff" android:textSize="12sp" /> </LinearLayout>
step7:每个标签对应页面的布局fragment_0.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" > <TextView android:layout_width="match_parent" android:layout_height="match_parent" android:text="首页" android:gravity="center" android:textSize="20sp" android:textColor="#403901"/> </LinearLayout>
OK,到此为止,就完事儿了,以上步骤没有按照开发顺序来,但还是应该能看懂的吧,哈哈,看不懂请留言咪我。
时间: 2024-10-09 01:32:39