Tab与TabHost:
这就是Tab,而盛放Tab的容器就是TabHost 。
如何实现??
每一个Tab还对应了一个布局,这个就有点好玩了。一个Activity,对应了多个功能布局。
新建一个Tab项目,注意,不要生成main Activity 。
注意IDE,这里不要选...
在包里面新建一个类MyTab,继承于TabActivity。
其实,TabActivity是Activity的子类
package zyf.tab.test; import android.app.TabActivity; public class MyTab extends TabActivity { }
从父类继承OnCreate()入口方法
package zyf.tab.test; import android.app.TabActivity; import android.os.Bundle; public class MyTab extends TabActivity { @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); } }
在Manifest.xml文件中注册一下MyTab类(Activity)
<activity android:name=\".MyTab\"> <intent-filter> <action android:name=\"android.intent.action.MAIN\"></action> <category android:name=\"android.intent.category.LAUNCHER\"></category> </intent-filter> </activity>
这时候,需要设计一下标签页对应的布局,一般采用FrameLayout作为根布局,每个标签页面对应一个子节点的Layout
<?xml version=\"1.0\" encoding=\"utf-8\"?> <!-- 这里是根节点布局 -- > <FrameLayout xmlns:android=\"http://schemas.android.com/apk/res/android\" android:layout_width=\"fill_parent\" android:layout_height=\"fill_parent\"> <!-- 第一个Tab 对应的布局 -- > <LinearLayout android:id=\"@+id/widget_layout_Blue\" android:layout_width=\"fill_parent\" android:layout_height=\"fill_parent\" androidrientation=\"vertical\" > <EditText android:id=\"@+id/widget34\" android:layout_width=\"fill_parent\" android:layout_height=\"wrap_content\" android:text=\"EditText\" android:textSize=\"18sp\"> </EditText> <Button android:id=\"@+id/widget30\" android:layout_width=\"wrap_content\" android:layout_height=\"wrap_content\" android:text=\"Button\"> </Button> </LinearLayout> <!-- 第二个Tab 对应的布局 -- > <LinearLayout android:id=\"@+id/widget_layout_red\" android:layout_width=\"fill_parent\" android:layout_height=\"fill_parent\" androidrientation=\"vertical\" > <AnalogClock android:id=\"@+id/widget36\" android:layout_width=\"wrap_content\" android:layout_height=\"wrap_content\"> </AnalogClock> </LinearLayout> <!-- 第三个Tab 对应的布局 -- > <LinearLayout android:id=\"@+id/widget_layout_green\" android:layout_width=\"fill_parent\" android:layout_height=\"fill_parent\" androidrientation=\"vertical\"> <RadioGroup android:id=\"@+id/widget43\" android:layout_width=\"166px\" android:layout_height=\"98px\" androidrientation=\"vertical\"> <RadioButton android:id=\"@+id/widget44\" android:layout_width=\"wrap_content\" android:layout_height=\"wrap_content\" android:text=\"RadioButton\"> </RadioButton> <RadioButton android:id=\"@+id/widget45\" android:layout_width=\"wrap_content\" android:layout_height=\"wrap_content\" android:text=\"RadioButton\"> </RadioButton> </RadioGroup> </LinearLayout> </FrameLayout>
首先,应该声明TabHost,然后用LayoutInflater过滤出布局来,给TabHost加上含有Tab页面的FrameLayout
private TabHost myTabhost; myTabhost=this.getTabHost();//从TabActivity上面获取放置Tab的TabHost LayoutInflater.from(this).inflate(R.layout.main, myTabhost.getTabContentView(), true); //from(this)从这个TabActivity获取LayoutInflater //R.layout.main 存放Tab布局 //通过TabHost获得存放Tab标签页内容的FrameLayout //是否将inflate 拴系到根布局元素上 myTabhost.setBackgroundColor(Color.argb(150, 22, 70, 150)); //设置一下TabHost的颜色
接着,在TabHost创建一个标签,然后设置一下标题/图标/标签页布局
myTabhost.addTab(myTabhost.newTabSpec(\"TT\")// 制造一个新的标签TT .setIndicator(\"KK\",getResources().getDrawable(R.drawable.ajjc)) // 设置一下显示的标题为KK,设置一下标签图标为ajjc .setContent(R.id.widget_layout_red)); //设置一下该标签页的布局内容为R.id.widget_layout_red,这是FrameLayout中的一个子Layout
标签切换事件处理,setOnTabChangedListener
myTabhost.setOnTabChangedListener(new OnTabChangeListener(){ @Override public void onTabChanged(String tabId) { // TODO Auto-generated method stub } });
各个标签页的动态MENU
先把在XML中设计好的MENU放到一个int数组里
private static final int myMenuResources[] = { R.menu.phonebook_menu, R.menu.addphone_menu, R.menu.chatting_menu, R.menu.userapp_menu };
在setOnTabChangedListener()方法中根据标签的切换情况来设置myMenuSettingTag
Override public void onTabChanged(String tagString) { // TODO Auto-generated method stub if (tagString.equals(\"One\")) { myMenuSettingTag = 1; } if (tagString.equals(\"Two\")) { myMenuSettingTag = 2; } if (tagString.equals(\"Three\")) { myMenuSettingTag = 3; } if (tagString.equals(\"Four\")) { myMenuSettingTag = 4; } if (myMenu != null) { onCreateOptionsMenu(myMenu); } }
然后onCreateOptionsMenu(Menu menu) 方法中通过MenuInflater过滤器动态加入MENU
@Override public boolean onCreateOptionsMenu(Menu menu) { // TODO Auto-generated method stub // Hold on to this myMenu = menu; myMenu.clear();//清空MENU菜单 // Inflate the currently selected menu XML resource. MenuInflater inflater = getMenuInflater(); //从TabActivity这里获取一个MENU过滤器 switch (myMenuSettingTag) { case 1: inflater.inflate(myMenuResources[0], menu); //动态加入数组中对应的XML MENU菜单 break; case 2: inflater.inflate(myMenuResources[1], menu); break; case 3: inflater.inflate(myMenuResources[2], menu); break; case 4: inflater.inflate(myMenuResources[3], menu); break; default: break; } return super.onCreateOptionsMenu(menu); }
menu 布局
<?xml version=\"1.0\" encoding=\"utf-8\"?> <menu xmlns:android=\"http://schemas.android.com/apk/res/android\"> <group android:id=\"@+id/group_a\"><item android:id=\"@+id/item_a\" android:icon=\"@drawable/gimp\" android:title=\"Gimp\"></item> </group> </menu>
运行效果
模仿微信导航实例:
<?xml version=\"1.0\" encoding=\"utf-8\"?> <TabHost xmlns:android=\"http://schemas.android.com/apk/res/android\" android:id=\"@android:id/tabhost\" android:layout_width=\"match_parent\" android:layout_height=\"match_parent\" > <LinearLayout android:layout_width=\"match_parent\" android:layout_height=\"match_parent\" android:orientation=\"vertical\" > <FrameLayout android:id=\"@android:id/tabcontent\" android:layout_width=\"match_parent\" android:layout_height=\"0.0dip\" android:layout_weight=\"1.0\" > </FrameLayout> <TabWidget android:id=\"@android:id/tabs\" android:layout_width=\"match_parent\" android:layout_height=\"wrap_content\" android:visibility=\"gone\" > </TabWidget> <RadioGroup android:layout_width=\"match_parent\" android:layout_height=\"wrap_content\" android:layout_gravity=\"bottom\" android:background=\"@android:color/black\" android:orientation=\"horizontal\" > <RadioButton android:id=\"@+id/talk\" style=\"@style/rbt_bottom\" android:drawableTop=\"@drawable/take_bottom\" android:text=\"@string/talk\" /> <RadioButton android:id=\"@+id/address\" style=\"@style/rbt_bottom\" android:drawableTop=\"@drawable/adrress_bottom\" android:text=\"@string/address\" /> <RadioButton android:id=\"@+id/find\" style=\"@style/rbt_bottom\" android:drawableTop=\"@drawable/find_bottom\" android:text=\"@string/find\" /> <RadioButton android:id=\"@+id/me\" style=\"@style/rbt_bottom\" android:drawableTop=\"@drawable/me_bottom\" android:text=\"@string/me\" /> </RadioGroup> </LinearLayout> </TabHost>
<?xml version=\"1.0\" encoding=\"utf-8\"?> <selector xmlns:android=\"http://schemas.android.com/apk/res/android\"> <item android:drawable=\"@drawable/n_address_l\" android:state_checked=\"true\" android:state_enabled=\"true\"/> <item android:drawable=\"@drawable/n_address_h\"/> </selector>
package com.android.xiong.bkclient; import android.app.TabActivity; import android.content.Intent; import android.os.Bundle; import android.widget.CompoundButton; import android.widget.CompoundButton.OnCheckedChangeListener; import android.widget.RadioButton; import android.widget.TabHost; @SuppressWarnings(\"deprecation\") public class MainActivity extends TabActivity implements OnCheckedChangeListener { private TabHost tabHost; private Intent addressIntent; private Intent meIntent; private Intent takeIntent; private Intent findIntent; private RadioButton findBt; private RadioButton addressBt; private RadioButton meBt; private RadioButton takeBt; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.tabhostmain); addressIntent = new Intent(this, AddressActivity.class); meIntent = new Intent(this, MeActivity.class); takeIntent = new Intent(this, TakeActivity.class); findIntent = new Intent(this, FindActivity.class); findBt = (RadioButton) findViewById(R.id.find); addressBt = (RadioButton) findViewById(R.id.address); meBt = (RadioButton) findViewById(R.id.me); takeBt = (RadioButton) findViewById(R.id.talk); tabHost =getTabHost(); tabHost.addTab(tabHost.newTabSpec(\"take\").setIndicator(\"take\") .setContent(takeIntent)); tabHost.addTab(tabHost.newTabSpec(\"address\").setIndicator(\"address\") .setContent(addressIntent)); tabHost.addTab(tabHost.newTabSpec(\"find\").setIndicator(\"find\") .setContent(findIntent)); tabHost.addTab(tabHost.newTabSpec(\"me\").setIndicator(\"me\") .setContent(meIntent)); findBt.setOnCheckedChangeListener(this); meBt.setOnCheckedChangeListener(this); takeBt.setOnCheckedChangeListener(this); addressBt.setOnCheckedChangeListener(this); } @Override public void onCheckedChanged(CompoundButton view, boolean ischeak) { if (ischeak) { switch (view.getId()) { case R.id.talk: tabHost.setCurrentTabByTag(\"take\"); break; case R.id.find: tabHost.setCurrentTabByTag(\"find\"); break; case R.id.me: tabHost.setCurrentTabByTag(\"me\"); break; case R.id.address: tabHost.setCurrentTabByTag(\"address\"); break; default: break; } } } }
<manifest xmlns:android=\"http://schemas.android.com/apk/res/android\" package=\"com.android.xiong.bkclient\" android:versionCode=\"1\" android:versionName=\"1.0\" > <uses-sdk android:minSdkVersion=\"8\" android:targetSdkVersion=\"19\" /> <application android:allowBackup=\"true\" android:icon=\"@drawable/ic_launcher\" android:label=\"@string/app_name\" android:theme=\"@style/AppTheme\" > <activity android:name=\"com.android.xiong.bkclient.MainActivity\"> <intent-filter> <action android:name=\"android.intent.action.MAIN\" /> <category android:name=\"android.intent.category.LAUNCHER\" /> </intent-filter> </activity> <activity android:name=\"com.android.xiong.bkclient.AddressActivity\"></activity> <activity android:name=\"com.android.xiong.bkclient.FindActivity\"></activity> <activity android:name=\"com.android.xiong.bkclient.MeActivity\"></activity> <activity android:name=\"com.android.xiong.bkclient.TakeActivity\"></activity> </application> </manifest>
本文地址:https://www.stayed.cn/item/14947
转载请注明出处。
本站部分内容来源于网络,如侵犯到您的权益,请 联系我