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android 輪播圖 使用banner依賴實現

首先引入輪播圖的一個依賴

compile 'com.hejunlin.superindicatorlibray:superindicatorlibray:1.0.3'

這是這個依賴作者github上的地址https://github.com/hejunlin2013/SuperIndicator

下面是佈局檔案

幀佈局中放置指示針

  <com.hejunlin.superindicatorlibray.LoopViewPager
            android:id="@+id/looperviewpager"
            android:layout_width="match_parent"
            android:layout_height="match_parent"/>

        <FrameLayout
            android:layout_width="match_parent"
            android:layout_height="@dimen/dimen_48dp"
            android:layout_gravity="bottom">

            <com.hejunlin.superindicatorlibray.CircleIndicator
                android:id="@+id/indicator"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:gravity="center"
                android:orientation="horizontal"/>


        </FrameLayout>

每一個LoopViewPager的佈局

我命名為home_pic_item

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_guide"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <ImageView
        android:id="@+id/iv_img"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:scaleType="fitXY"
        />
    <!--layout_gravity 父佈局的位置-->
    <!--gravity 自己(本身)佈局的位置-->
    <TextView
        android:id="@+id/tv_dec"
        android:layout_width="match_parent"
        android:layout_height="@dimen/dimen_40dp"
        android:textSize="@dimen/dimen_28sp"
        android:layout_gravity="bottom|left"
        android:layout_marginLeft="@dimen/dimen_6dp"
        android:textColor="@color/white"

        />


</FrameLayout>



下面是初始化程式碼:
LoopViewPager viewPager = bindViewId(R.id.looperviewpager);
        CircleIndicator indicator = bindViewId(R.id.indicator);
        viewPager.setAdapter(new HomePicAdapter(getActivity()));
        viewPager.setLooperPic(true);//5s自動輪播
        indicator.setViewPager(viewPager); //indicator需要知道viewpager


最後介面卡中的程式碼
public class HomePicAdapter extends PagerAdapter {
    private Context mContext;

    //文字
    private int[] mDes = new int[] {
            R.string.a_name,
            R.string.b_name,
            R.string.c_name,
            R.string.d_name,
            R.string.e_name,
    };

    //圖片
    private int[] mImg = new int[] {
            R.drawable.a,
            R.drawable.b,
            R.drawable.c,
            R.drawable.d,
            R.drawable.e,
    };

    public HomePicAdapter(Activity activity) {
        mContext = activity;
    }

    @Override
    public Object instantiateItem(ViewGroup container, int position) {
        View view = LayoutInflater.from(mContext).inflate(R.layout.home_pic_item, null);
        TextView textView = (TextView) view.findViewById(R.id.tv_dec);
        ImageView imageView = (ImageView) view.findViewById(R.id.iv_img);
        textView.setText(mDes[position]);
        imageView.setImageResource(mImg[position]);
        container.addView(view);
        return view;

    }

    @Override
    public void destroyItem(ViewGroup container, int position, Object object) {
        container.removeView((View) object);
    }

    @Override
    public int getCount() {
        return 5;
    }

    @Override
    public boolean isViewFromObject(View view, Object object) {
        return view == object;
    }
}

效果圖: