新增preferredLanguage属性，可以设置首选语言，优先于系统语言

TZImagePickerController/TZImagePickerController/NSBundle+TZImagePicker.m

@@ -23,19 +23,9 @@
 }
 
 + (NSString *)tz_localizedStringForKey:(NSString *)key value:(NSString *)value {
-    static NSBundle *bundle = nil;
-    if (bundle == nil) {
-        NSString *language = [NSLocale preferredLanguages].firstObject;
-        if ([language rangeOfString:@"zh-Hans"].location != NSNotFound) {
-            language = @"zh-Hans";
-        } else if ([language rangeOfString:@"zh-Hant"].location != NSNotFound) {
-            language = @"zh-Hant";
-        } else {
-            language = @"en";
-        }
-        bundle = [NSBundle bundleWithPath:[[NSBundle tz_imagePickerBundle] pathForResource:language ofType:@"lproj"]];
-    }
+    NSBundle *bundle = [TZImagePickerConfig sharedInstance].languageBundle;
     NSString *value1 = [bundle localizedStringForKey:key value:value table:nil];
     return value1;
 }
+
 @end

TZImagePickerController/TZImagePickerController/TZAssetModel.m

@@ -33,9 +33,7 @@
 
 - (void)setResult:(id)result {
     _result = result;
-    BOOL allowPickingImage = [[[NSUserDefaults standardUserDefaults] objectForKey:@"tz_allowPickingImage"] isEqualToString:@"1"];
-    BOOL allowPickingVideo = [[[NSUserDefaults standardUserDefaults] objectForKey:@"tz_allowPickingVideo"] isEqualToString:@"1"];
-    [[TZImageManager manager] getAssetsFromFetchResult:result allowPickingVideo:allowPickingVideo allowPickingImage:allowPickingImage completion:^(NSArray<TZAssetModel *> *models) {
+    [[TZImageManager manager] getAssetsFromFetchResult:result completion:^(NSArray<TZAssetModel *> *models) {
         _models = models;
         if (_selectedModels) {
             [self checkSelectedModels];

TZImagePickerController/TZImagePickerController/TZImageManager.h

@@ -54,6 +54,7 @@
 - (void)getAllAlbums:(BOOL)allowPickingVideo allowPickingImage:(BOOL)allowPickingImage completion:(void (^)(NSArray<TZAlbumModel *> *models))completion;
 
 /// Get Assets 获得Asset数组
+- (void)getAssetsFromFetchResult:(id)result completion:(void (^)(NSArray<TZAssetModel *> *models))completion;
 - (void)getAssetsFromFetchResult:(id)result allowPickingVideo:(BOOL)allowPickingVideo allowPickingImage:(BOOL)allowPickingImage completion:(void (^)(NSArray<TZAssetModel *> *models))completion;
 - (void)getAssetFromFetchResult:(id)result atIndex:(NSInteger)index allowPickingVideo:(BOOL)allowPickingVideo allowPickingImage:(BOOL)allowPickingImage completion:(void (^)(TZAssetModel *model))completion;
 

TZImagePickerController/TZImagePickerController/TZImageManager.m

@@ -229,6 +229,11 @@ static dispatch_once_t onceToken;
 #pragma mark - Get Assets
 
 /// Get Assets 获得照片数组
+- (void)getAssetsFromFetchResult:(id)result completion:(void (^)(NSArray<TZAssetModel *> *))completion {
+    TZImagePickerConfig *config = [TZImagePickerConfig sharedInstance];
+    return [self getAssetsFromFetchResult:result allowPickingVideo:config.allowPickingVideo allowPickingImage:config.allowPickingImage completion:completion];
+}
+
 - (void)getAssetsFromFetchResult:(id)result allowPickingVideo:(BOOL)allowPickingVideo allowPickingImage:(BOOL)allowPickingImage completion:(void (^)(NSArray<TZAssetModel *> *))completion {
     NSMutableArray *photoArr = [NSMutableArray array];
     if ([result isKindOfClass:[PHFetchResult class]]) {

TZImagePickerController/TZImagePickerController/TZImagePickerController.h

@@ -28,6 +28,7 @@
 @protocol TZImagePickerControllerDelegate;
 @interface TZImagePickerController : UINavigationController
 
+#pragma mark -
 /// Use this init method / 用这个初始化方法
 - (instancetype)initWithMaxImagesCount:(NSInteger)maxImagesCount delegate:(id<TZImagePickerControllerDelegate>)delegate;
 - (instancetype)initWithMaxImagesCount:(NSInteger)maxImagesCount columnNumber:(NSInteger)columnNumber delegate:(id<TZImagePickerControllerDelegate>)delegate;
@@ -37,6 +38,7 @@
 /// This init method for crop photo / 用这个初始化方法以裁剪图片
 - (instancetype)initCropTypeWithAsset:(id)asset photo:(UIImage *)photo completion:(void (^)(UIImage *cropImage,id asset))completion;
 
+#pragma mark -
 /// Default is 9 / 默认最大可选9张图片
 @property (nonatomic, assign) NSInteger maxImagesCount;
 
@@ -84,6 +86,10 @@
 /// 默认为YES，如果设置为NO,拍照按钮将隐藏,用户将不能选择照片
 @property(nonatomic, assign) BOOL allowTakePicture;
 
+/// 首选语言，如果设置了就用该语言，不设则取当前系统语言。
+/// 由于目前只支持中文、繁体中文、英文。故该属性只支持zh-Hans、zh-Hant、en三种值，其余值无效。
+@property (copy, nonatomic) NSString *preferredLanguage;
+
 /// Default is YES, if set NO, user can't preview photo.
 /// 默认为YES，如果设置为NO,预览按钮将隐藏,用户将不能去预览照片
 @property (nonatomic, assign) BOOL allowPreview;
@@ -108,6 +114,8 @@
 @property (nonatomic, assign) BOOL isStatusBarDefault __attribute__((deprecated("Use -statusBarStyle.")));
 /// statusBar的样式，默认为UIStatusBarStyleLightContent
 @property (assign, nonatomic) UIStatusBarStyle statusBarStyle;
+
+#pragma mark -
 /// Single selection mode, valid when maxImagesCount = 1
 /// 单选模式,maxImagesCount为1时才生效
 @property (nonatomic, assign) BOOL showSelectBtn;        ///< 在单选模式下，照片列表页中，显示选择按钮,默认为NO
@@ -121,6 +129,7 @@
 
 @property (nonatomic, copy) void (^navLeftBarButtonSettingBlock)(UIButton *leftButton);     ///< 自定义返回按钮样式及其属性
 
+#pragma mark -
 - (id)showAlertWithTitle:(NSString *)title;
 - (void)hideAlertView:(id)alertView;
 - (void)showProgressHUD;
@@ -128,6 +137,7 @@
 @property (nonatomic, assign) BOOL isSelectOriginalPhoto;
 @property (assign, nonatomic) BOOL needShowStatusBar;
 
+#pragma mark -
 @property (nonatomic, copy) NSString *takePictureImageName;
 @property (nonatomic, copy) NSString *photoSelImageName;
 @property (nonatomic, copy) NSString *photoDefImageName;
@@ -136,6 +146,7 @@
 @property (nonatomic, copy) NSString *photoPreviewOriginDefImageName;
 @property (nonatomic, copy) NSString *photoNumberIconImageName;
 
+#pragma mark -
 /// Appearance / 外观颜色 + 按钮文字
 @property (nonatomic, strong) UIColor *oKButtonTitleColorNormal;
 @property (nonatomic, strong) UIColor *oKButtonTitleColorDisabled;
@@ -152,7 +163,7 @@
 @property (nonatomic, copy) NSString *settingBtnTitleStr;
 @property (nonatomic, copy) NSString *processHintStr;
 
-/// Public Method
+#pragma mark -
 - (void)cancelButtonClick;
 
 // The picker should dismiss itself; when it dismissed these handle will be called.
@@ -243,3 +254,14 @@
 + (CGFloat)tz_statusBarHeight;
 @end
 
+
+@interface TZImagePickerConfig : NSObject
++ (instancetype)sharedInstance;
+@property (copy, nonatomic) NSString *preferredLanguage;
+@property(nonatomic, assign) BOOL allowPickingImage;
+@property (nonatomic, assign) BOOL allowPickingVideo;
+
+/// 语言bundle，preferredLanguage变化时languageBundle会变化
+/// 可通过设置bundle，让选择器支持更多的语言。欢迎提交PR把语言文件提交上来~
+@property (strong, nonatomic) NSBundle *languageBundle;
+@end

TZImagePickerController/TZImagePickerController/TZImagePickerController.m

@@ -495,16 +495,18 @@
 
 - (void)setAllowPickingImage:(BOOL)allowPickingImage {
     _allowPickingImage = allowPickingImage;
-    NSString *allowPickingImageStr = _allowPickingImage ? @"1" : @"0";
-    [[NSUserDefaults standardUserDefaults] setObject:allowPickingImageStr forKey:@"tz_allowPickingImage"];
-    [[NSUserDefaults standardUserDefaults] synchronize];
+    [TZImagePickerConfig sharedInstance].allowPickingImage = allowPickingImage;
 }
 
 - (void)setAllowPickingVideo:(BOOL)allowPickingVideo {
     _allowPickingVideo = allowPickingVideo;
-    NSString *allowPickingVideoStr = _allowPickingVideo ? @"1" : @"0";
-    [[NSUserDefaults standardUserDefaults] setObject:allowPickingVideoStr forKey:@"tz_allowPickingVideo"];
-    [[NSUserDefaults standardUserDefaults] synchronize];
+    [TZImagePickerConfig sharedInstance].allowPickingVideo = allowPickingVideo;
+}
+
+- (void)setPreferredLanguage:(NSString *)preferredLanguage {
+    _preferredLanguage = preferredLanguage;
+    [TZImagePickerConfig sharedInstance].preferredLanguage = preferredLanguage;
+    [self configDefaultBtnTitle];
 }
 
 - (void)setSortAscendingByModificationDate:(BOOL)sortAscendingByModificationDate {
@@ -767,3 +769,36 @@
 }
 
 @end
+
+
+@implementation TZImagePickerConfig
+
++ (instancetype)sharedInstance {
+    static dispatch_once_t onceToken;
+    static TZImagePickerConfig *config = nil;
+    dispatch_once(&onceToken, ^{
+        if (config == nil) {
+            config = [[TZImagePickerConfig alloc] init];
+            config.preferredLanguage = nil;
+        }
+    });
+    return config;
+}
+
+- (void)setPreferredLanguage:(NSString *)preferredLanguage {
+    _preferredLanguage = preferredLanguage;
+    
+    if (!preferredLanguage || !preferredLanguage.length) {
+        preferredLanguage = [NSLocale preferredLanguages].firstObject;
+    }
+    if ([preferredLanguage rangeOfString:@"zh-Hans"].location != NSNotFound) {
+        preferredLanguage = @"zh-Hans";
+    } else if ([preferredLanguage rangeOfString:@"zh-Hant"].location != NSNotFound) {
+        preferredLanguage = @"zh-Hant";
+    } else {
+        preferredLanguage = @"en";
+    }
+    _languageBundle = [NSBundle bundleWithPath:[[NSBundle tz_imagePickerBundle] pathForResource:preferredLanguage ofType:@"lproj"]];
+}
+
+@end

TZImagePickerController/TZImagePickerController/TZPhotoPickerController.m

@@ -105,7 +105,7 @@ static CGFloat itemMargin = 5;
             }];
         } else {
             if (_showTakePhotoBtn || !iOS8Later || _isFirstAppear) {
-                [[TZImageManager manager] getAssetsFromFetchResult:_model.result allowPickingVideo:tzImagePickerVc.allowPickingVideo allowPickingImage:tzImagePickerVc.allowPickingImage completion:^(NSArray<TZAssetModel *> *models) {
+                [[TZImageManager manager] getAssetsFromFetchResult:_model.result completion:^(NSArray<TZAssetModel *> *models) {
                     _models = [NSMutableArray arrayWithArray:models];
                     [self initSubviews];
                 }];
@@ -725,7 +725,7 @@ static CGFloat itemMargin = 5;
     TZImagePickerController *tzImagePickerVc = (TZImagePickerController *)self.navigationController;
     [[TZImageManager manager] getCameraRollAlbum:tzImagePickerVc.allowPickingVideo allowPickingImage:tzImagePickerVc.allowPickingImage completion:^(TZAlbumModel *model) {
         _model = model;
-        [[TZImageManager manager] getAssetsFromFetchResult:_model.result allowPickingVideo:tzImagePickerVc.allowPickingVideo allowPickingImage:tzImagePickerVc.allowPickingImage completion:^(NSArray<TZAssetModel *> *models) {
+        [[TZImageManager manager] getAssetsFromFetchResult:_model.result completion:^(NSArray<TZAssetModel *> *models) {
             [tzImagePickerVc hideProgressHUD];
             
             TZAssetModel *assetModel;

TZImagePickerController/ViewController.m

@@ -292,9 +292,11 @@
     
     // Deprecated, Use statusBarStyle
     // imagePickerVc.isStatusBarDefault = NO;
-    
     imagePickerVc.statusBarStyle = UIStatusBarStyleLightContent;
     
+    // 设置首选语言
+    imagePickerVc.preferredLanguage = @"zh-Hans";
+    
 #pragma mark - 到这里为止
     
     // You can get the photos by block, the same as by delegate.