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Android 轮播图的实现方法总结

Android 轮播图的实现方法总结

作者: 我是你森哥哥 | 来源:发表于2017-06-13 15:26 被阅读215次
  • SliderLayout
  • LoopViewPage
  • BGABanner
  • 自定义view实现轮播
  • 仿魅族的banner轮播图

1. SliderLayout

GitHub地址:https://github.com/daimajia/AndroidImageSlider

预览效果如下


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使用方法如下:

  • [ 1 ] 添加依赖
gradle中配置
dependencies {
        compile "com.android.support:support-v4:+"
        compile 'com.squareup.picasso:picasso:2.3.2'
        compile 'com.nineoldandroids:library:2.4.0'
        compile 'com.daimajia.slider:library:1.1.5@aar'
}


  • [ 2 ] 在布局文件中使用
<com.daimajia.slider.library.SliderLayout
    android:id="@+id/slider"
    android:layout_width="match_parent"
    android:layout_height="200dp"
    />

  • [ 3 ] 在代码中实现
sliderLayout = (SliderLayout) findViewById(R.id.slider);
    //添加图片控件
    for(int i=0;i<mTitles.length;i++)
    {
        TextSliderView textSliderView=new TextSliderView(this);
        textSliderView.description(mTitles[i]);//设置标题
        textSliderView.image(mImages[i]);//设置图片的网络地址
        textSliderView.setScaleType(BaseSliderView.ScaleType.CenterCrop);//设置图片的缩放效果;
        //添加到布局中显示
        sliderLayout.addSlider(textSliderView);
    }
    //设置指示器的位置
    sliderLayout.setPresetIndicator(SliderLayout.PresetIndicators.Center_Bottom);
    //设置图片的切换效果
    sliderLayout.setPresetTransformer(SliderLayout.Transformer.Accordion);
   // sliderLayout.setCustomAnimation(new DescriptionAnimation()); 添加textView动画特效
    //设置切换时长2000 ,时长越小,切换速度越快
    sliderLayout.setDuration(2000);

}

  • [ 4 ] 性能优化
//性能优化。当页面显示时进行自动播放
@Override
protected void onStart() {
    super.onStart();
    sliderLayout.startAutoCycle();
}

//性能优化。当页面不显示时暂停自动播放
@Override
protected void onStop() {
    super.onStop();
    sliderLayout.stopAutoCycle();
}


2. LoopViewPage

github地址:https://github.com/open-android/LoopViewPager
大神博客: http://www.jianshu.com/p/f847325e8a28

Paste_Image.png

3. 自定义view实现轮播

/*
* 广告轮播图的自定义View
 */

public class Advertisements implements OnPageChangeListener, View.OnTouchListener {
    private ViewPager vpAdvertise;
    private Context context;
    private LayoutInflater inflater;
    private boolean fitXY;
    private int timeDratioin;//多长时间切换一次pager
    private boolean isPlay = true;
    List<View> views;
    // 底部小点图片
    private ImageView[] dots;

    // 记录当前选中位置
    private int currentIndex;

    Timer timer;
    TimerTask task;
    int count = 0;

    private Handler runHandler = new Handler() {
        @Override
        public void handleMessage(Message msg) {
            switch (msg.what) {
                case 0x01:
                    int currentPage = (Integer) msg.obj;
                    setCurrentDot(currentPage);
                    vpAdvertise.setCurrentItem(currentPage);
                    break;
            }
        }

        ;
    };

    public Advertisements(Context context, boolean fitXY, LayoutInflater inflater, int timeDratioin, boolean isPlay) {
        this.context = context;
        this.fitXY = fitXY;
        this.inflater = inflater;
        this.timeDratioin = timeDratioin;
        this.isPlay = isPlay;
    }

    public View initView(final List<WebServiceItem> advertiseArray) {
        View view = inflater.inflate(R.layout.advertisement_board, null);
        vpAdvertise = (ViewPager) view.findViewById(R.id.vpAdvertise);
        vpAdvertise.setOnPageChangeListener(this);
        views = new ArrayList<View>();
        LinearLayout ll = (LinearLayout) view.findViewById(R.id.ll);//获取轮播图片的点的parent,用于动态添加要显示的点
        for (int i = 0; i < advertiseArray.size(); i++) {
            if (fitXY) {
                views.add(inflater.inflate(R.layout.advertisement_item_fitxy, null));
            } else {
                views.add(inflater.inflate(R.layout.advertisement_item_fitcenter, null));
            }
            ll.addView(inflater.inflate(R.layout.advertisement_board_dot, null));
        }
        initDots(view, ll);

        AdvertisementAdapter adapter = new AdvertisementAdapter(context, views, advertiseArray);
        vpAdvertise.setOffscreenPageLimit(3);
        vpAdvertise.setAdapter(adapter);
        new Thread() {
            @Override
            public void run() {
                while (isPlay) {
                    try {
                        sleep(timeDratioin);
                        int currentPage = count % advertiseArray.size();
                        count++;
                        Message msg = Message.obtain();
                        msg.what = 0x01;
                        msg.obj = currentPage;
                        runHandler.sendMessage(msg);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
            }
        }.start();
        return view;
    }


    private void initDots(View view, LinearLayout ll) {


        dots = new ImageView[views.size()];

        // 循环取得小点图片
        for (int i = 0; i < views.size(); i++) {
            dots[i] = (ImageView) ll.getChildAt(i);
            dots[i].setEnabled(true);// 都设为灰色
        }

        currentIndex = 0;
        dots[currentIndex].setEnabled(false);// 设置为黄色,即选中状态
    }

    private void setCurrentDot(int position) {
        if (position < 0 || position > views.size() - 1
                || currentIndex == position) {
            return;
        }

        dots[position].setEnabled(false);
        dots[currentIndex].setEnabled(true);

        currentIndex = position;
    }

    @Override
    public void onPageScrollStateChanged(int arg0) {
        // TODO Auto-generated method stub
        switch (arg0) {
            case 1:// 手势滑动,空闲中
                isPlay = false;
                break;
            case 2:// 界面切换中
                isPlay = true;
                break;
            case 0:// 滑动结束,即切换完毕或者加载完毕
                // 当前为最后一张,此时从右向左滑,则切换到第一张
                if (vpAdvertise.getCurrentItem() == vpAdvertise.getAdapter().getCount() - 1 && !isPlay) {
                    vpAdvertise.setCurrentItem(0);
                }
                // 当前为第一张,此时从左向右滑,则切换到最后一张
                else if (vpAdvertise.getCurrentItem() == 0 && !isPlay) {
                    vpAdvertise.setCurrentItem(vpAdvertise.getAdapter().getCount() - 1);
                }
                break;
        }

    }

    @Override
    public void onPageScrolled(int arg0, float arg1, int arg2) {
        // TODO Auto-generated method stub

    }

    @Override
    public void onPageSelected(int position) {
        // TODO Auto-generated method stub
        count = position;
        setCurrentDot(position);
    }

    @Override
    public boolean onTouch(View v, MotionEvent event) {
        switch (event.getAction()) {
            case MotionEvent.ACTION_DOWN:
                isPlay = false;
                Log.i("isPlay", "false");
                break;
            case MotionEvent.ACTION_UP:
                isPlay = true;
![0.gif](https://img.haomeiwen.com/i6303777/247863508d77ffbe.gif?imageMogr2/auto-orient/strip)
                Log.i("isPlay", "true");
                break;
            default:
                break;
        }
        return true;
    }
}
  • 使用方法
  <LinearLayout
                    android:id="@+id/llAdvertiseBoard"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:orientation="vertical" />

  view.addView(new Advertisements(getContext(), true, LayoutInflater.from(getContext()), 3000, true).initView(advertiseArray));

5. * 仿魅族的banner轮播图

地址:http://mp.weixin.qq.com/s/RZ_IWvlHcWD1erJrRff_lA

0.gif

6. BGABanner

https://github.com/bingoogolapple/BGABanner-Android
引导界面滑动导航 + 大于等于1页时无限轮播 + 各种切换动画轮播效果 这也是GitHub上优秀的轮播控件 具体用法GitHub上介绍的很清楚 完善也有许多关于它的博客可以了解 这里就不在介绍了

dc235ec4-5f4a-11e6-92b7-144a2a1a1e3f.gif

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