Support initial seleted images setting

README.md

@@ -56,7 +56,7 @@ No more steps, just enjoy. :)
 
 ###Custom Activity Style
 * Custome your own Activity
-``` java
+```java
 class CustomerActivity extends Activity implements MultiImageSelectorFragment.Callback{
 	@Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -95,6 +95,14 @@ class CustomerActivity extends Activity implements MultiImageSelectorFragment.Ca
 
 -------------------
 
+###Change Log
+
+* 2015-4-9
+    1. Fixed. When set `EXTRA_SHOW_CAMERA` to `true`, the first grid item onclick event were messed.
+    2. Add. Support initial selected image list.
+
+-------------------
+
 ###Thanks
 
 * [square-picasso](https://github.com/square/picasso) A powerful image downloading and caching library for Android 

README_zh.md

 # MultiImageSelector
-仿微信实现多图选择。支持单选和多选两张模式
+仿微信实现多图选择。支持单选和多选两种模式
 
 [English Doc](README.md)
 
@@ -18,7 +18,7 @@
 
 * 第2步
 代码中调用，例如:
-``` java
+```java
 Intent intent = new Intent(mContext, MultiImageSelectorActivity.class);
 
 // 是否显示调用相机拍照
@@ -56,7 +56,7 @@ protected void onActivityResult(int requestCode, int resultCode, Intent data) {
 
 ###自定义显示
 * 自定义Activity
-``` java
+```java
 class CustomerActivity extends Activity implements MultiImageSelectorFragment.Callback{
 	@Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -95,6 +95,14 @@ class CustomerActivity extends Activity implements MultiImageSelectorFragment.Ca
 
 -------------------
 
+###更新日志
+
+* 2015-4-9
+    1. 修复. 当设置 `EXTRA_SHOW_CAMERA` 为 `true` 时, 点击第一个Item会混乱的问题.
+    2. 新增. 支持初始化图片选择设定。
+
+-------------------
+
 ###感谢
 
 * [square-picasso](https://github.com/square/picasso) A powerful image downloading and caching library for Android 

app/src/main/java/me/nereo/multiimageselector/MainActivity.java

@@ -12,6 +12,7 @@ import android.widget.EditText;
 import android.widget.RadioGroup;
 import android.widget.TextView;
 
+import java.util.ArrayList;
 import java.util.List;
 
 import me.nereo.multi_image_selector.MultiImageSelectorActivity;
@@ -25,6 +26,8 @@ public class MainActivity extends ActionBarActivity {
     private RadioGroup mChoiceMode, mShowCamera;
     private EditText mRequestNum;
 
+    private ArrayList<String> mSelectPath;
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -73,6 +76,10 @@ public class MainActivity extends ActionBarActivity {
                 intent.putExtra(MultiImageSelectorActivity.EXTRA_SELECT_COUNT, maxNum);
                 // 选择模式
                 intent.putExtra(MultiImageSelectorActivity.EXTRA_SELECT_MODE, selectedMode);
+                // 默认选择
+                if(mSelectPath != null && mSelectPath.size()>0){
+                    intent.putExtra(MultiImageSelectorActivity.EXTRA_DEFAULT_SELECTED_LIST, mSelectPath);
+                }
                 startActivityForResult(intent, REQUEST_IMAGE);
 
             }
@@ -84,9 +91,9 @@ public class MainActivity extends ActionBarActivity {
         super.onActivityResult(requestCode, resultCode, data);
         if(requestCode == REQUEST_IMAGE){
             if(resultCode == RESULT_OK){
-                List<String> path = data.getStringArrayListExtra(MultiImageSelectorActivity.EXTRA_RESULT);
+                mSelectPath = data.getStringArrayListExtra(MultiImageSelectorActivity.EXTRA_RESULT);
                 StringBuilder sb = new StringBuilder();
-                for(String p: path){
+                for(String p: mSelectPath){
                     sb.append(p);
                     sb.append("\n");
                 }

multi-image-selector/src/main/java/me/nereo/multi_image_selector/MultiImageSelectorActivity.java

@@ -24,6 +24,8 @@ public class MultiImageSelectorActivity extends FragmentActivity implements Mult
     public static final String EXTRA_SHOW_CAMERA = "show_camera";
     /** 选择结果，返回为 ArrayList<String> 图片路径集合  */
     public static final String EXTRA_RESULT = "select_result";
+    /** 默认选择集 */
+    public static final String EXTRA_DEFAULT_SELECTED_LIST = "default_list";
 
     /** 单选 */
     public static final int MODE_SINGLE = 0;
@@ -43,11 +45,15 @@ public class MultiImageSelectorActivity extends FragmentActivity implements Mult
         mDefaultCount = intent.getIntExtra(EXTRA_SELECT_COUNT, 9);
         int mode = intent.getIntExtra(EXTRA_SELECT_MODE, MODE_MULTI);
         boolean isShow = intent.getBooleanExtra(EXTRA_SHOW_CAMERA, true);
+        if(mode == MODE_MULTI && intent.hasExtra(EXTRA_DEFAULT_SELECTED_LIST)) {
+            resultList = intent.getStringArrayListExtra(EXTRA_DEFAULT_SELECTED_LIST);
+        }
 
         Bundle bundle = new Bundle();
         bundle.putInt(MultiImageSelectorFragment.EXTRA_SELECT_COUNT, mDefaultCount);
         bundle.putInt(MultiImageSelectorFragment.EXTRA_SELECT_MODE, mode);
         bundle.putBoolean(MultiImageSelectorFragment.EXTRA_SHOW_CAMERA, isShow);
+        bundle.putStringArrayList(MultiImageSelectorFragment.EXTRA_DEFAULT_SELECTED_LIST, resultList);
 
         getSupportFragmentManager().beginTransaction()
                 .add(R.id.image_grid, Fragment.instantiate(this, MultiImageSelectorFragment.class.getName(), bundle))
@@ -67,6 +73,9 @@ public class MultiImageSelectorActivity extends FragmentActivity implements Mult
         if(resultList == null || resultList.size()<=0){
             mSubmitButton.setText("完成");
             mSubmitButton.setEnabled(false);
+        }else{
+            mSubmitButton.setText("完成("+resultList.size()+"/"+mDefaultCount+")");
+            mSubmitButton.setEnabled(true);
         }
         mSubmitButton.setOnClickListener(new View.OnClickListener() {
             @Override
@@ -110,6 +119,8 @@ public class MultiImageSelectorActivity extends FragmentActivity implements Mult
         if(resultList.contains(path)){
             resultList.remove(path);
             mSubmitButton.setText("完成("+resultList.size()+"/"+mDefaultCount+")");
+        }else{
+            mSubmitButton.setText("完成("+resultList.size()+"/"+mDefaultCount+")");
         }
         // 当为选择图片时候的状态
         if(resultList.size() == 0){

multi-image-selector/src/main/java/me/nereo/multi_image_selector/MultiImageSelectorFragment.java

@@ -50,6 +50,8 @@ public class MultiImageSelectorFragment extends Fragment {
     public static final String EXTRA_SELECT_MODE = "select_count_mode";
     /** 是否显示相机，boolean类型 */
     public static final String EXTRA_SHOW_CAMERA = "show_camera";
+    /** 默认选择的数据集 */
+    public static final String EXTRA_DEFAULT_SELECTED_LIST = "default_result";
     /** 单选 */
     public static final int MODE_SINGLE = 0;
     /** 多选 */
@@ -114,6 +116,14 @@ public class MultiImageSelectorFragment extends Fragment {
         // 图片选择模式
         final int mode = getArguments().getInt(EXTRA_SELECT_MODE);
 
+        // 默认选择
+        if(mode == MODE_MULTI) {
+            ArrayList<String> tmp = getArguments().getStringArrayList(EXTRA_DEFAULT_SELECTED_LIST);
+            if(tmp != null && tmp.size()>0) {
+                resultList = tmp;
+            }
+        }
+
         // 是否显示照相机
         final boolean showCamera = getArguments().getBoolean(EXTRA_SHOW_CAMERA, true);
         mImageAdapter = new ImageGridAdapter(getActivity(), showCamera);
@@ -210,7 +220,7 @@ public class MultiImageSelectorFragment extends Fragment {
         mGridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
             @Override
             public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
-                if(showCamera){
+                if(mImageAdapter.isShowCamera()){
                     // 如果显示照相机，则第一个Grid显示为照相机，处理特殊逻辑
                     if(i == 0){
                         showCameraAction();
@@ -413,6 +423,12 @@ public class MultiImageSelectorFragment extends Fragment {
                     }while(data.moveToNext());
 
                     mImageAdapter.setData(images);
+
+                    // 设定默认选择
+                    if(resultList != null && resultList.size()>0){
+                        mImageAdapter.setDefaultSelected(resultList);
+                    }
+
                     mFolderAdapter.setData(mResultFolder);
                     hasFolderGened = true;
 

multi-image-selector/src/main/java/me/nereo/multi_image_selector/adapter/FolderAdapter.java

@@ -141,7 +141,7 @@ public class FolderAdapter extends BaseAdapter {
             // 显示图片
             Picasso.with(mContext)
                     .load(new File(data.cover.path))
-                    .error(R.drawable.default_error)
+                    .placeholder(R.drawable.default_error)
                     .resize(mImageSize, mImageSize)
                     .centerCrop()
                     .into(cover);

multi-image-selector/src/main/java/me/nereo/multi_image_selector/adapter/ImageGridAdapter.java

 package me.nereo.multi_image_selector.adapter;
 
 import android.content.Context;
+import android.text.TextUtils;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -32,7 +33,6 @@ public class ImageGridAdapter extends BaseAdapter {
     private LayoutInflater mInflater;
     private boolean showCamera = true;
     private boolean showSelectIndicator = true;
-    private boolean justChangeIndicator = false;
 
     private List<Image> mImages = new ArrayList<>();
     private List<Image> mSelectedImages = new ArrayList<>();
@@ -61,6 +61,10 @@ public class ImageGridAdapter extends BaseAdapter {
         notifyDataSetChanged();
     }
 
+    public boolean isShowCamera(){
+        return showCamera;
+    }
+
     /**
      * 选择某个图片，改变选择状态
      * @param image
@@ -71,17 +75,42 @@ public class ImageGridAdapter extends BaseAdapter {
         }else{
             mSelectedImages.add(image);
         }
-        justChangeIndicator = true;
         notifyDataSetChanged();
     }
 
+    /**
+     * 通过图片路径设置默认选择
+     * @param resultList
+     */
+    public void setDefaultSelected(ArrayList<String> resultList) {
+        for(String path : resultList){
+            Image image = getImageByPath(path);
+            if(image != null){
+                mSelectedImages.add(image);
+            }
+        }
+        if(mSelectedImages.size() > 0){
+            notifyDataSetChanged();
+        }
+    }
+
+    private Image getImageByPath(String path){
+        if(mImages != null && mImages.size()>0){
+            for(Image image : mImages){
+                if(image.path.equalsIgnoreCase(path)){
+                    return image;
+                }
+            }
+        }
+        return null;
+    }
+
     /**
      * 设置数据集
      * @param images
      */
     public void setData(List<Image> images) {
         mSelectedImages.clear();
-        justChangeIndicator = false;
 
         if(images != null && images.size()>0){
             mImages = images;
@@ -224,7 +253,7 @@ public class ImageGridAdapter extends BaseAdapter {
             Picasso.with(mContext)
                     .load(imageFile)
                     .placeholder(R.drawable.default_error)
-                    .error(R.drawable.default_error)
+                    //.error(R.drawable.default_error)
                     .resize(mItemSize, mItemSize)
                     .centerCrop()
                     .into(image);

multi-image-selector/src/main/res/layout/list_item_folder.xml

@@ -14,7 +14,8 @@
         android:id="@+id/cover"
         tools:src="@drawable/btn_back"
         android:layout_gravity="center_vertical"
-        android:scaleType="centerCrop"
+        android:scaleType="centerInside"
+        android:src="@drawable/default_error"
         android:layout_width="@dimen/folder_cover_size"
         android:layout_height="@dimen/folder_cover_size" />
 

multi-image-selector/src/main/res/layout/list_item_image.xml

@@ -4,7 +4,8 @@
 
     <ImageView
         android:id="@+id/image"
-        android:scaleType="centerCrop"
+        android:scaleType="centerInside"
+        android:src="@drawable/default_error"
         android:layout_width="match_parent"
         android:layout_height="match_parent" />