这里,我将说下使用viewpager加上view来实现tab界面。其实这个并不陌生,这个就是我们在学习最初的viewpager的时候,viewpager的使用方式。
基本思想就是:将多个xml布局文件转换为view对象,再加到Adapter上去。
其中实现xml文件往view对象的转换的三种方式:
1.LayoutInflate Lf = getLayoutInflate.from(this)
2.View view = Lf.inflate(resource, root)
3.View view = View.inflate(Context, resource, root)
在我这个事例中有一个小问题要注意的是:我在这里设置的是LineaLayout的监听事件,同时给ImageButton加一个属性:android:onclickable = "false"。这样能保证当用户点击textview或者imagebutton(凡是点击在LinearLayout上,都可以执行)。话不多说,直接贴代码
MainActivity的布局文件代码
<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.android_tab1.MainActivity" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<include layout="@layout/top" />
</LinearLayout>
<LinearLayout
android:layout_weight="1"
android:layout_width="match_parent"
android:layout_height="0dp" >
<android.support.v4.view.ViewPager
android:id="@+id/viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<include layout="@layout/bottom" />
</LinearLayout>
</LinearLayout>
buttom文件代码
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="55dp"
android:background="@drawable/bottom_bar"
android:orientation="horizontal" >
<LinearLayout
android:id="@+id/linear_weixin"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:gravity="center"
android:orientation="vertical" >
<ImageButton
android:id="@+id/imagebutton_weixin"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#00000000"
android:clickable="false"
android:src="@drawable/tab_weixin_pressed" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="微信"
android:clickable="false"
android:textColor="#ffffff" />
</LinearLayout>
<LinearLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:id="@+id/linear_friend"
android:gravity="center"
android:orientation="vertical" >
<ImageButton
android:id="@+id/imagebutton_friend"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#00000000"
android:clickable="false"
android:src="@drawable/tab_find_frd_normal" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="朋友"
android:textColor="#ffffff" />
</LinearLayout>
<LinearLayout
android:id="@+id/linear_address"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:gravity="center"
android:orientation="vertical" >
<ImageButton
android:id="@+id/imagebutton_address"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#00000000"
android:clickable="false"
android:src="@drawable/tab_address_normal" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="通讯录"
android:textColor="#ffffff" />
</LinearLayout>
<LinearLayout
android:id="@+id/linear_setting"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:gravity="center"
android:orientation="vertical" >
<ImageButton
android:id="@+id/imagebutton_setting"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#00000000"
android:clickable="false"
android:src="@drawable/tab_settings_normal" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="设置"
android:textColor="#ffffff" />
</LinearLayout>
</LinearLayout>
至于view2,view3,view4代码与view1差不多,只是在text上的内容改变了。
MainActivity代码
package com.example.android_tab1;
import java.util.ArrayList;
import java.util.List;
/*
* 既能滑动又能点击
*/
import android.app.Activity;
import android.os.Bundle;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.widget.ImageButton;
import android.widget.LinearLayout;
public class MainActivity extends Activity implements OnClickListener{
private ViewPager viewpager = null;
private List<View> list = null;
private ImageButton imagebutton_weixin = null;
private ImageButton imagebutton_friend = null;
private ImageButton imagebutton_address = null;
private ImageButton imagebutton_setting = null;
private LinearLayout linear_weixin = null;
private LinearLayout linear_friend = null;
private LinearLayout linear_address = null;
private LinearLayout linear_setting = null;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_main);
initview();
}
private void initview()
{
viewpager = (ViewPager) findViewById(R.id.viewpager);
imagebutton_weixin = (ImageButton) findViewById(R.id.imagebutton_weixin);
imagebutton_friend = (ImageButton) findViewById(R.id.imagebutton_friend);
imagebutton_address = (ImageButton) findViewById(R.id.imagebutton_address);
imagebutton_setting = (ImageButton) findViewById(R.id.imagebutton_setting);
linear_weixin = (LinearLayout) findViewById(R.id.linear_weixin);
linear_friend = (LinearLayout) findViewById(R.id.linear_friend);
linear_address = (LinearLayout) findViewById(R.id.linear_address);
linear_setting = (LinearLayout) findViewById(R.id.linear_setting);
list = new ArrayList<View>();
LayoutInflater lf = LayoutInflater.from(this);
View view1 = lf.inflate(R.layout.view1, null);
View view2 = lf.inflate(R.layout.view2, null);
View view3 = lf.inflate(R.layout.view3, null);
View view4 = lf.inflate(R.layout.view4, null);
list.add(view1);
list.add(view2);
list.add(view3);
list.add(view4);
Myadapter myadapter = new Myadapter(list);
viewpager.setAdapter(myadapter);
viewpager.setOnPageChangeListener(new OnPageChangeListener() {
public void onPageSelected(int arg0) {
resetimage();
switch(arg0)
{
case 0:
{
imagebutton_weixin.setImageResource(R.drawable.tab_weixin_pressed);
break;
}
case 1:
{
imagebutton_friend.setImageResource(R.drawable.tab_find_frd_pressed);
break;
}
case 2:
{
imagebutton_address.setImageResource(R.drawable.tab_address_pressed);
break;
}
case 3:
{
imagebutton_setting.setImageResource(R.drawable.tab_settings_pressed);
break;
}
}
}
@Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
}
@Override
public void onPageScrollStateChanged(int arg0) {
}
});
Log.i("main", "1");
linear_weixin.setOnClickListener(this);
Log.i("main", "2");
linear_friend.setOnClickListener(this);
linear_address.setOnClickListener(this);
linear_setting.setOnClickListener(this);
}
public void onClick(View v) {
resetimage();
switch(v.getId())
{
case R.id.linear_weixin:
{
Log.i("main", "3");
viewpager.setCurrentItem(0);
Log.i("main", "4");
imagebutton_weixin.setImageResource(R.drawable.tab_weixin_pressed);
break;
}
case R.id.linear_friend:
{
viewpager.setCurrentItem(1);
imagebutton_friend.setImageResource(R.drawable.tab_find_frd_pressed);
break;
}
case R.id.linear_address:
{
viewpager.setCurrentItem(2);
imagebutton_address.setImageResource(R.drawable.tab_address_pressed);
break;
}
case R.id.linear_setting:
{
viewpager.setCurrentItem(3);
imagebutton_setting.setImageResource(R.drawable.tab_settings_pressed);
break;
}
}
}
private void resetimage()
{
imagebutton_weixin.setImageResource(R.drawable.tab_weixin_normal);
imagebutton_friend.setImageResource(R.drawable.tab_find_frd_normal);
imagebutton_address.setImageResource(R.drawable.tab_address_normal);
imagebutton_setting.setImageResource(R.drawable.tab_settings_normal);
}
}