增加相册图片筛选功能，用户可以自定义筛选

app/src/main/java/com/bilibili/boxing/impl/BoxingFilter.java

@@ -0,0 +1,68 @@
+package com.bilibili.boxing.impl;
+
+import android.graphics.BitmapFactory;
+import android.util.Log;
+
+import com.bilibili.boxing.loader.IBoxingMediaFilter;
+import com.bilibili.boxing.model.entity.AlbumEntity;
+import com.bilibili.boxing.model.entity.BaseMedia;
+
+import java.util.Iterator;
+import java.util.List;
+
+/**
+ * @author jax
+ * @date 2018/1/5
+ * @description filter album images. sample for filter img width and height.
+ */
+
+public class BoxingFilter implements IBoxingMediaFilter {
+    private static final String TAG = "BoxingFilter";
+    private static final int MIN_WIDTH = 1280;
+    private static final int MIN_HEIGHT = 720;
+
+    @Override
+    public List<AlbumEntity> filterAlbum(List<AlbumEntity> albums) {
+        Iterator<AlbumEntity> entityIterator = albums.iterator();
+        while (entityIterator.hasNext()) {
+            AlbumEntity entity = entityIterator.next();
+            List<BaseMedia> medias = entity.mImageList;
+            entity.mImageList = filterMedia(medias);
+            if (entity.mImageList.size() <= 0) {
+                entityIterator.remove();
+            }
+        }
+        return albums;
+    }
+
+    @Override
+    public List<BaseMedia> filterMedia(List<BaseMedia> medias) {
+        if (medias != null) {
+            Iterator<BaseMedia> baseMediaIterator = medias.iterator();
+            while (baseMediaIterator.hasNext()) {
+                BaseMedia media = baseMediaIterator.next();
+                if (!checkWH(media)) {
+                    baseMediaIterator.remove();
+                }
+            }
+        }
+        return medias;
+    }
+
+
+    private boolean checkWH(BaseMedia media) {
+        try {
+            String path = media.getPath();
+            BitmapFactory.Options options = new BitmapFactory.Options();
+            options.inJustDecodeBounds = true;
+            BitmapFactory.decodeFile(path, options);
+            int w = options.outWidth;
+            int h = options.outHeight;
+            Log.d(TAG, "checkWH: w -->" + w + "  ,h -->" + h);
+            return w > MIN_WIDTH && h > MIN_HEIGHT;
+        } catch (Exception e) {
+            Log.e(TAG, "checkWH: ", e);
+        }
+        return true;
+    }
+}

app/src/main/java/com/bilibili/boxing/ui/FirstActivity.java

@@ -33,8 +33,10 @@
 
 import com.bilibili.boxing.AbsBoxingActivity;
 import com.bilibili.boxing.Boxing;
+import com.bilibili.boxing.BoxingMediaFilter;
 import com.bilibili.boxing.BoxingMediaLoader;
 import com.bilibili.boxing.demo.R;
+import com.bilibili.boxing.impl.BoxingFilter;
 import com.bilibili.boxing.model.BoxingManager;
 import com.bilibili.boxing.model.config.BoxingConfig;
 import com.bilibili.boxing.model.config.BoxingCropOption;
@@ -70,6 +72,7 @@ protected void onCreate(Bundle savedInstanceState) {
 
         findViewById(R.id.single_image_btn).setOnClickListener(this);
         findViewById(R.id.single_image_btn_crop_btn).setOnClickListener(this);
+        findViewById(R.id.single_image_btn_filter_btn).setOnClickListener(this);
         findViewById(R.id.multi_image_btn).setOnClickListener(this);
         findViewById(R.id.video_btn).setOnClickListener(this);
         findViewById(R.id.outside_bs_btn).setOnClickListener(this);
@@ -97,6 +100,7 @@ public void onClick(View v) {
     @Override
     public void onClick(View v) {
         int id = v.getId();
+        BoxingMediaFilter.INSTANCE.init(null);
         switch (id) {
             case R.id.single_image_btn:
                 BoxingConfig singleImgConfig = new BoxingConfig(BoxingConfig.Mode.SINGLE_IMG).withMediaPlaceHolderRes(R.drawable.ic_boxing_default_image);
@@ -117,6 +121,11 @@ public void onClick(View v) {
                         .withMediaPlaceHolderRes(R.drawable.ic_boxing_default_image);
                 Boxing.of(singleCropImgConfig).withIntent(this, BoxingActivity.class).start(this, REQUEST_CODE);
                 break;
+            case R.id.single_image_btn_filter_btn:
+                BoxingMediaFilter.INSTANCE.init(new BoxingFilter());
+                BoxingConfig filterImgConfig = new BoxingConfig(BoxingConfig.Mode.SINGLE_IMG).withMediaPlaceHolderRes(R.drawable.ic_boxing_default_image);
+                Boxing.of(filterImgConfig).withIntent(this, BoxingActivity.class).start(this, COMPRESS_REQUEST_CODE);
+                break;
             case R.id.multi_image_btn:
                 BoxingConfig config = new BoxingConfig(BoxingConfig.Mode.MULTI_IMG).needCamera(R.drawable.ic_boxing_camera_white).needGif();
                 Boxing.of(config).withIntent(this, BoxingActivity.class).start(this, REQUEST_CODE);

app/src/main/res/layout/activity_first.xml

@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
+<?xml version="1.0" encoding="utf-8"?><!--
   ~  Copyright (C) 2017 Bilibili
   ~
   ~  Licensed under the Apache License, Version 2.0 (the "License");
@@ -16,15 +15,14 @@
   ~
   -->
 
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
+<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.bilibili.boxing.ui.FirstActivity">
 
-    <include layout="@layout/layout_boxing_app_bar"/>
+    <include layout="@layout/layout_boxing_app_bar" />
 
     <LinearLayout
         android:layout_width="match_parent"
@@ -43,7 +41,7 @@
             android:gravity="center"
             android:padding="@dimen/boxing_item_spacing"
             android:text="@string/boxing_pick_single_image"
-            android:textColor="@color/boxing_colorPrimaryDark"/>
+            android:textColor="@color/boxing_colorPrimaryDark" />
 
         <TextView
             android:id="@+id/single_image_btn_crop_btn"
@@ -56,7 +54,20 @@
             android:gravity="center"
             android:padding="@dimen/boxing_item_spacing"
             android:text="@string/boxing_pick_single_image_crop"
-            android:textColor="@color/boxing_colorPrimaryDark"/>
+            android:textColor="@color/boxing_colorPrimaryDark" />
+
+        <TextView
+            android:id="@+id/single_image_btn_filter_btn"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginLeft="@dimen/boxing_activity_horizontal_margin"
+            android:layout_marginRight="@dimen/boxing_activity_horizontal_margin"
+            android:layout_weight="1"
+            android:background="@drawable/rect_color_primary"
+            android:gravity="center"
+            android:padding="@dimen/boxing_item_spacing"
+            android:text="@string/boxing_pick_single_image_filter"
+            android:textColor="@color/boxing_colorPrimaryDark" />
     </LinearLayout>
 
     <LinearLayout
@@ -76,7 +87,7 @@
             android:gravity="center"
             android:padding="@dimen/boxing_item_spacing"
             android:text="@string/boxing_pick_multi_image"
-            android:textColor="@color/boxing_colorPrimaryDark"/>
+            android:textColor="@color/boxing_colorPrimaryDark" />
 
         <TextView
             android:id="@+id/video_btn"
@@ -89,7 +100,7 @@
             android:gravity="center"
             android:padding="@dimen/boxing_item_spacing"
             android:text="@string/boxing_pick_single_video"
-            android:textColor="@color/boxing_colorPrimaryDark"/>
+            android:textColor="@color/boxing_colorPrimaryDark" />
 
     </LinearLayout>
 
@@ -104,17 +115,17 @@
         android:gravity="center"
         android:padding="@dimen/boxing_item_spacing"
         android:text="@string/bottom_sheet"
-        android:textColor="@color/boxing_colorPrimaryDark"/>
+        android:textColor="@color/boxing_colorPrimaryDark" />
 
     <android.support.v7.widget.RecyclerView
         android:id="@+id/media_recycle_view"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
-        android:layout_marginTop="@dimen/boxing_item_spacing"
         android:layout_marginLeft="@dimen/boxing_activity_horizontal_margin"
         android:layout_marginRight="@dimen/boxing_activity_horizontal_margin"
+        android:layout_marginTop="@dimen/boxing_item_spacing"
         android:clickable="true"
         android:visibility="gone"
-        tools:visibility="visible"/>
+        tools:visibility="visible" />
 
 </LinearLayout>

boxing-impl/src/main/java/com/bilibili/boxing_impl/ui/BoxingViewFragment.java

@@ -40,6 +40,7 @@
 
 import com.bilibili.boxing.AbsBoxingViewFragment;
 import com.bilibili.boxing.Boxing;
+import com.bilibili.boxing.BoxingMediaFilter;
 import com.bilibili.boxing.model.BoxingManager;
 import com.bilibili.boxing.model.config.BoxingConfig;
 import com.bilibili.boxing.model.entity.AlbumEntity;
@@ -110,7 +111,7 @@ public void onRequestPermissionError(String[] permissions, Exception e) {
             if (permissions[0].equals(Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
                 Toast.makeText(getContext(), R.string.boxing_storage_permission_deny, Toast.LENGTH_SHORT).show();
                 showEmptyData();
-            } else if (permissions[0].equals(Manifest.permission.CAMERA)){
+            } else if (permissions[0].equals(Manifest.permission.CAMERA)) {
                 Toast.makeText(getContext(), R.string.boxing_camera_permission_deny, Toast.LENGTH_SHORT).show();
             }
         }
@@ -176,6 +177,7 @@ && isEmptyData(mMediaAdapter.getAllMedias())) {
             return;
         }
         showData();
+        medias = BoxingMediaFilter.INSTANCE.filterMedia(medias);
         mMediaAdapter.addAllData(medias);
         checkSelectedMedia(medias, mMediaAdapter.getSelectedMedias());
     }
@@ -204,6 +206,7 @@ public void showAlbum(@Nullable List<AlbumEntity> albums) {
             mTitleTxt.setOnClickListener(null);
             return;
         }
+        albums = BoxingMediaFilter.INSTANCE.startFilter(albums);
         mAlbumWindowAdapter.addAllData(albums);
     }
 
@@ -319,9 +322,9 @@ private void showProgressDialog() {
             mDialog.setIndeterminate(true);
             mDialog.setMessage(getString(R.string.boxing_handling));
         }
-       if (!mDialog.isShowing()) {
-           mDialog.show();
-       }
+        if (!mDialog.isShowing()) {
+            mDialog.show();
+        }
     }
 
     private void dismissProgressDialog() {

boxing-impl/src/main/res/values-en/strings.xml

@@ -29,6 +29,7 @@
     <string name="boxing_pick_single_video">Pick a video</string>
     <string name="boxing_pick_multi_image">Pick pictures</string>
     <string name="boxing_pick_single_image_crop">Pick a picture with crop</string>
+    <string name="boxing_pick_single_image_filter">Pick a picture with filter</string>
     <string name="boxing_pick_single_image">Pick a picture</string>
     <string name="boxing_video_title">videos</string>
     <string name="boxing_storage_deny">Device storage read error or temporarily unavailable. Please try again later</string>

boxing-impl/src/main/res/values/strings.xml

@@ -30,6 +30,7 @@
     <string name="boxing_pick_single_video">视频单选</string>
     <string name="boxing_pick_multi_image">图片多选</string>
     <string name="boxing_pick_single_image_crop">图片单选加裁剪</string>
+    <string name="boxing_pick_single_image_filter">图片单选加筛选</string>
     <string name="boxing_pick_single_image">图片单选</string>
     <string name="boxing_video_title">视频相册</string>
     <string name="boxing_finish">完成</string>

boxing/src/main/java/com/bilibili/boxing/BoxingMediaFilter.java

@@ -0,0 +1,32 @@
+package com.bilibili.boxing;
+
+import com.bilibili.boxing.loader.IBoxingMediaFilter;
+import com.bilibili.boxing.model.entity.AlbumEntity;
+import com.bilibili.boxing.model.entity.BaseMedia;
+
+import java.util.List;
+
+/**
+ * @author jax
+ * @date 2018/1/5
+ * @description
+ */
+
+public enum BoxingMediaFilter {
+    INSTANCE;
+
+    private IBoxingMediaFilter filter;
+
+    public void init(IBoxingMediaFilter filter) {
+        this.filter = filter;
+    }
+
+    public List<AlbumEntity> startFilter(List<AlbumEntity> entities) {
+        return filter == null ? entities : filter.filterAlbum(entities);
+    }
+
+    public List<BaseMedia> filterMedia(List<BaseMedia> medias) {
+        return filter == null ? medias : filter.filterMedia(medias);
+    }
+
+}

boxing/src/main/java/com/bilibili/boxing/loader/IBoxingMediaFilter.java

@@ -0,0 +1,32 @@
+package com.bilibili.boxing.loader;
+
+import com.bilibili.boxing.model.entity.AlbumEntity;
+import com.bilibili.boxing.model.entity.BaseMedia;
+
+import java.util.List;
+
+/**
+ * @author jax
+ * @date 2018/1/5
+ * @description filter album images list.
+ */
+
+public interface IBoxingMediaFilter {
+
+    /**
+     * filter origin albums to new list.
+     *
+     * @param albums origin album image.
+     * @return last albumEntity list.
+     */
+    List<AlbumEntity> filterAlbum(List<AlbumEntity> albums);
+
+    /**
+     * filter media to new list.
+     *
+     * @param medias origin medias.
+     * @return filter medias
+     */
+    List<BaseMedia> filterMedia(List<BaseMedia> medias);
+
+}