底部菜单实现(三)fragmentTabHost和fragment

一.FragmentTabHost的好处

在于可以更加灵活的设置按钮的样式.和轻易的与frgment切换进行绑定.节省了代码量

二.布局文件

主布局

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" tools:context="com.example.tabhost.MainActivity"> <FrameLayout android:id="@+id/tabContent" android:layout_width="match_parent" android:layout_height="0dp" android:layout_weight="1"></FrameLayout> <android.support.v4.app.FragmentTabHost android:id="@+id/tab" android:layout_width="match_parent" android:layout_height="wrap_content"></android.support.v4.app.FragmentTabHost></LinearLayout>

tab标签的布局

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="vertical"> <TextView android:id="@+id/tv" android:layout_width="wrap_content" android:layout_height="wrap_content"/> <ImageView android:id="@+id/iv" android:layout_width="wrap_content" android:layout_height="wrap_content"/></LinearLayout>

三.代码

public class MainActivity extends AppCompatActivity { @Bind(R.id.framlayout) FrameLayout mFramlayout; @Bind(R.id.btn1) Button mBtn1; @Bind(R.id.btn2) Button mBtn2; @Bind(R.id.btn3) Button mBtn3; @Bind(R.id.radio_group) RadioGroup mRadioGroup; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ButterKnife.bind(this); iniView(); iniEvent(); } private void iniEvent() { mRadioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() { @Override public void onCheckedChanged(RadioGroup group, int checkedId) { FragmentTransaction transaction = getSupportFragmentManager().beginTransaction(); BaseFragment fragment = null; switch (checkedId) { case R.id.btn1: fragment = FragmentFractory.getInstance().getBaseFragment(0); break; case R.id.btn2: fragment = FragmentFractory.getInstance().getBaseFragment(1); break; case R.id.btn3: fragment = FragmentFractory.getInstance().getBaseFragment(2); break; } transaction.replace(R.id.framlayout, fragment).commit(); } }); } private void iniView() { getSupportFragmentManager(). beginTransaction(). replace(R.id.framlayout, FragmentFractory.getInstance().getBaseFragment(0)) .commit(); }

}

代码:

public class MainActivity extends AppCompatActivity { private Class []clazz={Fragment1.class,Fragment2.class,Fragment3.class,Fragment4.class}; private FrameLayout mContainer; private FragmentTabHost mTabHost; String []tag={"one","two","three","four"}; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mContainer = (FrameLayout) findViewById(R.id.container); mTabHost = (FragmentTabHost) findViewById(R.id.tab); iniTab(); } private void iniTab() { //初始化tabHOST标签 mTabHost.setup(this,getSupportFragmentManager(),R.id.container); //给每一个标签关联frgemnt for (int i = 0; i <tag.length ; i++) { //给每一个标签添加标记 TabHost.TabSpec tabSpec = mTabHost.newTabSpec(tag[i]); //拿到每一个标签的布局文件 View view =getView(i); //关联标签的布局 tabSpec.setIndicator(view); //把标签添加到FragmnetTabhost mTabHost.addTab(tabSpec,clazz[i],null); } } private View getView(int i) { TextView text=new TextView(this); switch (i) { case 0: text.setText("首页"); break; case 1: text.setText("发现"); break; case 2: text.setText("购物"); break; case 3: text.setText("我的"); break; } return text; } }

布局文件

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" tools:context="com.example.administrator.recovertabfragmenthost.MainActivity"> <FrameLayout android:id="@+id/container" android:layout_width="match_parent" android:layout_height="0dp" android:layout_weight="1"></FrameLayout> <android.support.v4.app.FragmentTabHost android:id="@+id/tab" android:layout_width="match_parent" android:layout_height="wrap_content"></android.support.v4.app.FragmentTabHost> </LinearLayout>

源码下载 http://download.csdn.net/detail/dygcomed/9605219