Optimize cod for issue #140. setLifecycle supported.

README.md

@@ -107,6 +107,7 @@ It's also support to custom indicator style,just need extends BaseIndicatorView
 | BannerViewPager<T, VH> setRoundRect(int) | set round corner for BVP| Require SDK_INT>=LOLLIPOP |
 | BannerViewPager<T, VH> setOrientation(int) | Sets the orientation of the BVP| support in v3.0.0 {@link #ORIENTATION_HORIZONTAL} or {@link #ORIENTATION_VERTICAL} |
 | BannerViewPager<T, VH> setUserInputEnabled(int) | Enable or disable user initiated scrolling | |
+| BannerViewPager<T, VH> setLifecycleRegistry(Lifecycle) | Add lifecycle for BVP, | |
 | void startLoop() |start loop | Don't need call this method while init BVP |
 | void stopLoop() | Stop loop | |
 | List\<T> getData() | return data in BVP |  |
@@ -266,6 +267,7 @@ public class HomeAdapter extends BaseBannerAdapter<BannerData, NetViewHolder> {
              mViewPager
                        .setAutoPlay(true)
                        .setScrollDuration(800)
+                       .setLifecycleRegistry(getLifecycle())
                        .setIndicatorStyle(IndicatorStyle.ROUND_RECT)
                        .setIndicatorSliderGap(getResources().getDimensionPixelOffset(R.dimen.dp_4))
                        .setIndicatorSliderWidth(getResources().getDimensionPixelOffset(R.dimen.dp_4), getResources().getDimensionPixelOffset(R.dimen.dp_10))
@@ -295,6 +297,7 @@ public class HomeAdapter extends BaseBannerAdapter<BannerData, NetViewHolder> {
               mViewPager.apply {
                   adapter = HomeAdapter()
                   setAutoPlay(true)
+                  setLifecycleRegistry(lifecycle)
                   setIndicatorStyle(IndicatorStyle.ROUND_RECT)
                   setIndicatorSliderGap(getResources().getDimensionPixelOffset(R.dimen.dp_4))
                   setIndicatorMargin(0, 0, 0, resources.getDimension(R.dimen.dp_100).toInt())
@@ -350,11 +353,14 @@ If fetching data synchronously，you can call create(List<T>) method with parame
 
 ### 6.startLoop and stopLoop
 
-***If the version you used is later than 2.5.0,you don't need care of startLoop and stopLoop in Activity or Fragment. But the two methods is still public.***
-
-Recommend call stopLoop in onPause() and startLoop in onResume() to improve performance：
+***You can user setLifecycleRegistry(Lifecycle) method to instead of call stopLoop and startLoop in Activity or Fragment***
 
 ```
+
+    mViewPager.setLifecycleRegistry(getLifecycle())
+
+    // the follwoing code is deprecated.
+
     @Override
     protected void onPause() {
         if (mBannerViewPager != null)

README_CN.md

@@ -106,6 +106,7 @@ BannerViewPager目前已支持三种IndicatorViewStyle,以及五种IndicatorSlid
 | BannerViewPager<T, VH> setRoundRect(int) | 设置页面滑动方向|为BannerViewPager设置圆角 |
 | BannerViewPager<T, VH> setOrientation(int) | 设置页面滑动方向| 3.0.0新增 支持水平和竖直滑动 |
 | BannerViewPager<T, VH> setUserInputEnabled(int) | 是否开启用户输入 | |
+| BannerViewPager<T, VH> setLifecycleRegistry(Lifecycle) | 为BVP设置Lifecycle | |
 | void startLoop() |开启自动轮播 | 初始化BannerViewPager时不必调用该方法,设置setAutoPlay后会调用startLoop() |
 | void stopLoop() | 停止自动轮播 | |
 | List\<T> getData() | 获取Banner中的集合数据 |  |
@@ -265,6 +266,7 @@ public class HomeAdapter extends BaseBannerAdapter<BannerData, NetViewHolder> {
                        .setAutoPlay(true)
                        .setScrollDuration(800)
                        .setIndicatorStyle(IndicatorStyle.ROUND_RECT)
+                       .setLifecycleRegistry(getLifecycle())
                        .setIndicatorSliderGap(getResources().getDimensionPixelOffset(R.dimen.dp_4))
                        .setIndicatorSliderWidth(getResources().getDimensionPixelOffset(R.dimen.dp_4), getResources().getDimensionPixelOffset(R.dimen.dp_10))
                        .setIndicatorSliderColor(getColor(R.color.red_normal_color), getColor(R.color.red_checked_color))
@@ -293,6 +295,7 @@ public class HomeAdapter extends BaseBannerAdapter<BannerData, NetViewHolder> {
             mViewPager.apply {
                 adapter = HomeAdapter()
                 setAutoPlay(true)
+                setLifecycleRegistry(lifecycle)
                 setIndicatorStyle(IndicatorStyle.ROUND_RECT)
                 setIndicatorSliderGap(getResources().getDimensionPixelOffset(R.dimen.dp_4))
                 setIndicatorMargin(0, 0, 0, resources.getDimension(R.dimen.dp_100).toInt())
@@ -344,21 +347,20 @@ public class HomeAdapter extends BaseBannerAdapter<BannerData, NetViewHolder> {
         }
 ```
 
-
 ### 6.开启与停止轮播
 
-***2.5.0之后版本无需自行在Activity或Fragment中管理stopLoop和startLoop方法，但这两个方法依旧保留对外开放***
-
-但是为了节省性能建议在onPause中停止轮播，在onResume中开启轮播：
+***使用setLifecycleRegistry(getLifecycle())方法替代在Activity或Fragment中调用startLoop和stopLoop***
 
 ```
-     @Override
-      public void onPause() {
-          super.onPause();
-          if (mViewPager != null) {
-              mViewPager.stopLoop();
-          }
-      }
+    mViewPager.setLifecycleRegistry(getLifecycle())
+
+    // 下边代码已过时
+    @Override
+    protected void onPause() {
+        if (mBannerViewPager != null)
+                mBannerViewPager.stopLoop();
+        super.onPause();
+    }
 
     @Override
     protected void onResume() {

app/src/main/java/com/example/zhpan/circleviewpager/adapter/ArticleAdapter.kt

@@ -7,19 +7,18 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.widget.TextView
+import androidx.appcompat.app.AppCompatActivity
 import androidx.viewpager2.widget.ViewPager2
 
 import com.example.zhpan.circleviewpager.R
 import com.example.zhpan.circleviewpager.bean.ArticleWrapper
-import com.example.zhpan.circleviewpager.bean.CustomBean
-import com.example.zhpan.circleviewpager.viewholder.CustomPageViewHolder
 import com.example.zhpan.circleviewpager.viewholder.ImageResourceViewHolder
 import com.zhpan.bannerview.BannerViewPager
 import com.zhpan.indicator.enums.IndicatorStyle
 
 import java.util.ArrayList
 
-class ArticleAdapter(context: Context, data: List<ArticleWrapper.Article>) : RecyclerView.Adapter<RecyclerView.ViewHolder>() {
+class ArticleAdapter(val context: Context, data: List<ArticleWrapper.Article>) : RecyclerView.Adapter<RecyclerView.ViewHolder>() {
     private val mList = ArrayList<ArticleWrapper.Article>()
     private val inflater: LayoutInflater
 
@@ -45,7 +44,7 @@ class ArticleAdapter(context: Context, data: List<ArticleWrapper.Article>) : Rec
                     .setIndicatorSliderColor(holder.resources.getColor(R.color.red_normal_color), holder.resources.getColor(R.color.red_checked_color))
                     .setOrientation(ViewPager2.ORIENTATION_VERTICAL)
                     .setInterval(2000)
-                    .setAdapter(ImageResourceAdapter(0)).create(article.pagers);
+                    .setAdapter(ImageResourceAdapter(0)).create(article.pagers)
         } else if (holder is ArticleViewHolder) {
             holder.tvAuthor.text = article.author
             holder.tvTitle.text = article.title
@@ -76,6 +75,10 @@ class ArticleAdapter(context: Context, data: List<ArticleWrapper.Article>) : Rec
         var bannerViewPager: BannerViewPager<Int, ImageResourceViewHolder> = itemView.findViewById(R.id.banner_view3)
         var resources: Resources = itemView.context.resources
 
+        init {
+            if (context is AppCompatActivity)
+                bannerViewPager.setLifecycleRegistry(context.lifecycle)
+        }
     }
 
 }

app/src/main/java/com/example/zhpan/circleviewpager/fragment/HomeFragment.java

@@ -71,24 +71,12 @@ public class HomeFragment extends BaseFragment {
     public void onPause() {
         super.onPause();
         LogUtils.e("HomeFragment", "onPause");
-        if (mViewPagerHorizontal != null) {
-            mViewPagerHorizontal.stopLoop();
-        }
-        if (mViewPagerVertical != null) {
-            mViewPagerVertical.stopLoop();
-        }
     }
 
     @Override
     public void onResume() {
         super.onResume();
         LogUtils.e("HomeFragment", "onResume");
-        if (mViewPagerHorizontal != null) {
-            mViewPagerHorizontal.startLoop();
-        }
-        if (mViewPagerVertical != null) {
-            mViewPagerVertical.startLoop();
-        }
     }
 
     @Override
@@ -109,7 +97,7 @@ public class HomeFragment extends BaseFragment {
         recyclerView.addHeadView(getHeaderView(), true);
         recyclerView.addItemDecoration(new DividerItemDecoration(getMContext(),
                 DividerItemDecoration.VERTICAL));
-        articleAdapter = new ArticleAdapter(getMContext(), new ArrayList<>());
+        articleAdapter = new ArticleAdapter(getActivity(), new ArrayList<>());
         recyclerView.setAdapter(articleAdapter);
         recyclerView.getHeadAndFootAdapter();
     }
@@ -167,6 +155,7 @@ public class HomeFragment extends BaseFragment {
         HomeAdapter homeAdapter = new HomeAdapter();
         mViewPagerHorizontal
                 .setScrollDuration(600)
+                .setLifecycleRegistry(getLifecycle())
                 .setIndicatorStyle(IndicatorStyle.CIRCLE)
                 .setIndicatorSlideMode(IndicatorSlideMode.WORM)
                 .setInterval(3000)
@@ -188,6 +177,7 @@ public class HomeFragment extends BaseFragment {
         mViewPagerVertical
                 .setAutoPlay(true)
                 .setScrollDuration(500)
+                .setLifecycleRegistry(getLifecycle())
                 .setIndicatorStyle(IndicatorStyle.ROUND_RECT)
                 .setIndicatorSlideMode(IndicatorSlideMode.SCALE)
                 .setIndicatorSliderGap(getResources().getDimensionPixelOffset(R.dimen.dp_4))

app/src/main/java/com/example/zhpan/circleviewpager/fragment/IndicatorFragment.java

@@ -43,21 +43,6 @@ public class IndicatorFragment extends BaseFragment {
 
     }
 
-    @Override
-    public void onPause() {
-        super.onPause();
-        if (mViewPager != null) {
-            mViewPager.stopLoop();
-        }
-    }
-
-    @Override
-    public void onResume() {
-        super.onResume();
-        if (mViewPager != null) {
-            mViewPager.startLoop();
-        }
-    }
 
     @Override
     protected void initView(Bundle savedInstanceState, View view) {
@@ -67,6 +52,7 @@ public class IndicatorFragment extends BaseFragment {
         mViewPager = view.findViewById(R.id.banner_view);
         mViewPager.setIndicatorSliderGap(BannerUtils.dp2px(6))
                 .setScrollDuration(800)
+                .setLifecycleRegistry(getLifecycle())
                 .setIndicatorGravity(IndicatorGravity.CENTER)
                 .setOnPageClickListener(position -> ToastUtils.show("position:" + position))
                 .setAdapter(new BaseBannerAdapter<Integer, ImageResourceViewHolder>() {

app/src/main/java/com/example/zhpan/circleviewpager/fragment/OthersFragment.java

@@ -60,22 +60,6 @@ public class OthersFragment extends BaseFragment implements View.OnClickListener
         });
     }
 
-    @Override
-    public void onPause() {
-        super.onPause();
-        if (mViewPager != null) {
-            mViewPager.stopLoop();
-        }
-    }
-
-    @Override
-    public void onResume() {
-        super.onResume();
-        if (mViewPager != null) {
-            mViewPager.startLoop();
-        }
-    }
-
     @Override
     protected void initView(Bundle savedInstanceState, @NonNull View view) {
         initRefreshLayout(view);
@@ -86,6 +70,7 @@ public class OthersFragment extends BaseFragment implements View.OnClickListener
         view.findViewById(R.id.tv_photo_view).setOnClickListener(this);
         mViewPager.setIndicatorSliderGap(BannerUtils.dp2px(6))
                 .setIndicatorView(mIndicatorView)
+                .setLifecycleRegistry(getLifecycle())
                 .setRoundCorner(BannerUtils.dp2px(6))
                 .setOnPageClickListener(position -> {
                     ToastUtils.show("position:" + position);

app/src/main/java/com/example/zhpan/circleviewpager/fragment/PageFragment.java

@@ -37,22 +37,6 @@ public class PageFragment extends BaseFragment {
 
     }
 
-    @Override
-    public void onPause() {
-        super.onPause();
-        if (mViewPager != null) {
-            mViewPager.stopLoop();
-        }
-    }
-
-    @Override
-    public void onResume() {
-        super.onResume();
-        if (mViewPager != null) {
-            mViewPager.startLoop();
-        }
-    }
-
     @Override
     protected void initView(Bundle savedInstanceState, View view) {
         mViewPager = view.findViewById(R.id.banner_view);
@@ -61,6 +45,7 @@ public class PageFragment extends BaseFragment {
                 .setIndicatorSlideMode(IndicatorSlideMode.SCALE)
                 .setIndicatorSliderColor(getColor(R.color.red_normal_color), getColor(R.color.red_checked_color))
                 .setIndicatorSliderRadius(getResources().getDimensionPixelOffset(R.dimen.dp_4), getResources().getDimensionPixelOffset(R.dimen.dp_5))
+                .setLifecycleRegistry(getLifecycle())
                 .setOnPageClickListener(this::pageClick)
                 .setAdapter(new ImageResourceAdapter(getResources().getDimensionPixelOffset(R.dimen.dp_8)))
                 .setInterval(5000);

bannerview/src/main/java/com/zhpan/bannerview/BannerViewPager.java

@@ -6,6 +6,10 @@ import android.os.Handler;
 
 import androidx.annotation.ColorInt;
 import androidx.annotation.Nullable;
+import androidx.lifecycle.Lifecycle;
+import androidx.lifecycle.LifecycleObserver;
+import androidx.lifecycle.LifecycleRegistry;
+import androidx.lifecycle.OnLifecycleEvent;
 import androidx.recyclerview.widget.RecyclerView;
 import androidx.viewpager2.widget.CompositePageTransformer;
 import androidx.viewpager2.widget.MarginPageTransformer;
@@ -46,7 +50,7 @@ import static com.zhpan.bannerview.transform.ScaleInTransformer.DEFAULT_MIN_SCAL
 /**
  * Created by zhpan on 2017/3/28.
  */
-public class BannerViewPager<T, VH extends BaseViewHolder<T>> extends RelativeLayout {
+public class BannerViewPager<T, VH extends BaseViewHolder<T>> extends RelativeLayout implements LifecycleObserver {
 
     private int currentPosition;
 
@@ -158,14 +162,14 @@ public class BannerViewPager<T, VH extends BaseViewHolder<T>> extends RelativeLa
 
     @Override
     protected void onDetachedFromWindow() {
-        stopLoop();
+//        stopLoop();
         super.onDetachedFromWindow();
     }
 
     @Override
     protected void onAttachedToWindow() {
         super.onAttachedToWindow();
-        startLoop();
+//        startLoop();
     }
 
     @Override
@@ -197,7 +201,6 @@ public class BannerViewPager<T, VH extends BaseViewHolder<T>> extends RelativeLa
             case MotionEvent.ACTION_DOWN:
                 startX = (int) ev.getX();
                 startY = (int) ev.getY();
-//                getParent().requestDisallowInterceptTouchEvent(true);
                 break;
             case MotionEvent.ACTION_MOVE:
                 int endX = (int) ev.getX();
@@ -925,4 +928,19 @@ public class BannerViewPager<T, VH extends BaseViewHolder<T>> extends RelativeLa
         return this;
     }
 
+    public BannerViewPager<T, VH> setLifecycleRegistry(Lifecycle lifecycleRegistry) {
+        lifecycleRegistry.addObserver(this);
+        return this;
+    }
+
+    @OnLifecycleEvent(Lifecycle.Event.ON_PAUSE)
+    public void onPause() {
+        stopLoop();
+    }
+
+    @OnLifecycleEvent(Lifecycle.Event.ON_RESUME)
+    public void onResume() {
+        startLoop();
+    }
+
 }