自定義控件---系統控件組合式(案例二)
來源：程序員人生 發布時間：2015-03-26 09:13:33 閱讀次數：2543次
-----------------------------------------------案例效果-------------------------------------
activity_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<android.support.v4.view.ViewPager
android:id="@+id/viewPager"
android:layout_width="match_parent"
android:layout_height="200dip" />
<LinearLayout
android:gravity="center_horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignBottom="@id/viewPager"
android:background="#44000000"
android:orientation="vertical" >
<TextView
android:singleLine="true"
android:id="@+id/tv_msg"
android:textColor="#ffffff"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:text="武媚娘傳奇"
android:textSize="18sp" />
<LinearLayout
android:id="@+id/ll_point_group"
android:padding="5dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal" >
</LinearLayout>
</LinearLayout>
</RelativeLayout>
drawable目錄下有3個xml文件
point_bg.xml
<?xml version="1.0" encoding="utf⑻"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:state_enabled="false" android:drawable="@drawable/normal_point"></item>
<item android:state_enabled="true" android:drawable="@drawable/focused_point"></item>
</selector>
normal_point.xml
<?xml version="1.0" encoding="utf⑻"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="oval" >
<size android:width="10dip" android:height="10dip"/>
<solid android:color="#55000000"/>
</shape>
focused_point.xml
<?xml version="1.0" encoding="utf⑻"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="oval" >
<!-- 橢圓 -->
<size android:width="10dip" android:height="10dip"/>
<solid android:color="#66ffffff"/>
</shape>
MainActivity.java
package com.atguigu.myviewpager;
import java.util.ArrayList;
import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.LinearLayout.LayoutParams;
import android.widget.TextView;
public class MainActivity extends Activity {
// viewPager繼承viewGroup
private ViewPager viewPager;
private TextView tv_msg;
// 顯示當前頁的圓點標志布局視圖
private LinearLayout ll_point_group;
/**
* 圖片的int數組集合 圖片標題集合 圖片集合
*/
private int[] ids = { R.drawable.a, R.drawable.b, R.drawable.c,
R.drawable.d, R.drawable.e };
private final String[] imageDescriptions = { "鞏俐不低俗，我就不能低俗",
"樸樹又回來啦！再唱經典老歌引萬人大合唱", "揭秘北京電影如何升級", "樂視網TV版大派送", "熱血
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