[image_picker] Migrate Android to Pigeon (flutter#3476)

[image_picker] Migrate Android to Pigeon

Author: stuartmorgan-g

packages/image_picker/image_picker_android/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 0.8.6+3
+
+* Switches to Pigeon for internal implementation.
+
 ## 0.8.6+2
 
 * Fixes null pointer exception in `saveResult`.

packages/image_picker/image_picker_android/android/src/main/java/io/flutter/plugins/imagepicker/ImageOutputOptions.java

@@ -21,14 +21,15 @@ public enum CacheType {
     VIDEO
   }
 
-  static final String MAP_KEY_PATH = "path";
   static final String MAP_KEY_PATH_LIST = "pathList";
   static final String MAP_KEY_MAX_WIDTH = "maxWidth";
   static final String MAP_KEY_MAX_HEIGHT = "maxHeight";
   static final String MAP_KEY_IMAGE_QUALITY = "imageQuality";
-  private static final String MAP_KEY_TYPE = "type";
-  private static final String MAP_KEY_ERROR_CODE = "errorCode";
-  private static final String MAP_KEY_ERROR_MESSAGE = "errorMessage";
+  static final String MAP_KEY_TYPE = "type";
+  static final String MAP_KEY_ERROR = "error";
+
+  private static final String MAP_TYPE_VALUE_IMAGE = "image";
+  private static final String MAP_TYPE_VALUE_VIDEO = "video";
 
   private static final String FLUTTER_IMAGE_PICKER_IMAGE_PATH_KEY =
       "flutter_image_picker_image_path";
@@ -50,7 +51,7 @@ public enum CacheType {
   @VisibleForTesting
   static final String SHARED_PREFERENCES_NAME = "flutter_image_picker_shared_preference";
 
-  private SharedPreferences prefs;
+  private final SharedPreferences prefs;
 
   ImagePickerCache(Context context) {
     prefs = context.getSharedPreferences(SHARED_PREFERENCES_NAME, Context.MODE_PRIVATE);
@@ -59,10 +60,10 @@ public enum CacheType {
   void saveType(CacheType type) {
     switch (type) {
       case IMAGE:
-        setType("image");
+        setType(MAP_TYPE_VALUE_IMAGE);
         break;
       case VIDEO:
-        setType("video");
+        setType(MAP_TYPE_VALUE_VIDEO);
         break;
     }
   }
@@ -71,16 +72,17 @@ private void setType(String type) {
     prefs.edit().putString(SHARED_PREFERENCE_TYPE_KEY, type).apply();
   }
 
-  void saveDimensionWithOutputOptions(ImageOutputOptions options) {
+  void saveDimensionWithOutputOptions(Messages.ImageSelectionOptions options) {
     SharedPreferences.Editor editor = prefs.edit();
-    if (options.maxWidth != null) {
-      editor.putLong(SHARED_PREFERENCE_MAX_WIDTH_KEY, Double.doubleToRawLongBits(options.maxWidth));
+    if (options.getMaxWidth() != null) {
+      editor.putLong(
+          SHARED_PREFERENCE_MAX_WIDTH_KEY, Double.doubleToRawLongBits(options.getMaxWidth()));
     }
-    if (options.maxHeight != null) {
+    if (options.getMaxHeight() != null) {
       editor.putLong(
-          SHARED_PREFERENCE_MAX_HEIGHT_KEY, Double.doubleToRawLongBits(options.maxHeight));
+          SHARED_PREFERENCE_MAX_HEIGHT_KEY, Double.doubleToRawLongBits(options.getMaxHeight()));
     }
-    editor.putInt(SHARED_PREFERENCE_IMAGE_QUALITY_KEY, options.quality);
+    editor.putInt(SHARED_PREFERENCE_IMAGE_QUALITY_KEY, options.getQuality().intValue());
     editor.apply();
   }
 
@@ -115,35 +117,37 @@ void clear() {
   }
 
   Map<String, Object> getCacheMap() {
-
     Map<String, Object> resultMap = new HashMap<>();
-    ArrayList<String> pathList = new ArrayList<>();
     boolean hasData = false;
 
     if (prefs.contains(FLUTTER_IMAGE_PICKER_IMAGE_PATH_KEY)) {
       final Set<String> imagePathList =
           prefs.getStringSet(FLUTTER_IMAGE_PICKER_IMAGE_PATH_KEY, null);
       if (imagePathList != null) {
-        pathList.addAll(imagePathList);
+        ArrayList<String> pathList = new ArrayList<>(imagePathList);
         resultMap.put(MAP_KEY_PATH_LIST, pathList);
         hasData = true;
       }
     }
 
     if (prefs.contains(SHARED_PREFERENCE_ERROR_CODE_KEY)) {
-      final String errorCodeValue = prefs.getString(SHARED_PREFERENCE_ERROR_CODE_KEY, "");
-      resultMap.put(MAP_KEY_ERROR_CODE, errorCodeValue);
+      final Messages.CacheRetrievalError.Builder error = new Messages.CacheRetrievalError.Builder();
+      error.setCode(prefs.getString(SHARED_PREFERENCE_ERROR_CODE_KEY, ""));
       hasData = true;
       if (prefs.contains(SHARED_PREFERENCE_ERROR_MESSAGE_KEY)) {
-        final String errorMessageValue = prefs.getString(SHARED_PREFERENCE_ERROR_MESSAGE_KEY, "");
-        resultMap.put(MAP_KEY_ERROR_MESSAGE, errorMessageValue);
+        error.setMessage(prefs.getString(SHARED_PREFERENCE_ERROR_MESSAGE_KEY, ""));
       }
+      resultMap.put(MAP_KEY_ERROR, error.build());
     }
 
     if (hasData) {
       if (prefs.contains(SHARED_PREFERENCE_TYPE_KEY)) {
         final String typeValue = prefs.getString(SHARED_PREFERENCE_TYPE_KEY, "");
-        resultMap.put(MAP_KEY_TYPE, typeValue);
+        resultMap.put(
+            MAP_KEY_TYPE,
+            typeValue.equals(MAP_TYPE_VALUE_VIDEO)
+                ? Messages.CacheRetrievalType.VIDEO
+                : Messages.CacheRetrievalType.IMAGE);
       }
       if (prefs.contains(SHARED_PREFERENCE_MAX_WIDTH_KEY)) {
         final long maxWidthValue = prefs.getLong(SHARED_PREFERENCE_MAX_WIDTH_KEY, 0);
@@ -153,12 +157,8 @@ Map<String, Object> getCacheMap() {
         final long maxHeightValue = prefs.getLong(SHARED_PREFERENCE_MAX_HEIGHT_KEY, 0);
         resultMap.put(MAP_KEY_MAX_HEIGHT, Double.longBitsToDouble(maxHeightValue));
       }
-      if (prefs.contains(SHARED_PREFERENCE_IMAGE_QUALITY_KEY)) {
-        final int imageQuality = prefs.getInt(SHARED_PREFERENCE_IMAGE_QUALITY_KEY, 100);
-        resultMap.put(MAP_KEY_IMAGE_QUALITY, imageQuality);
-      } else {
-        resultMap.put(MAP_KEY_IMAGE_QUALITY, 100);
-      }
+      final int imageQuality = prefs.getInt(SHARED_PREFERENCE_IMAGE_QUALITY_KEY, 100);
+      resultMap.put(MAP_KEY_IMAGE_QUALITY, imageQuality);
     }
     return resultMap;
   }