markdown 编辑 - 快捷按钮优化

编辑文件 - 若有改动的话，返回是添加一个确认提示

Author: wanghengheng

Coding_iOS/Controllers/FileEditViewController.m

@@ -11,6 +11,7 @@
 #import "WebContentManager.h"
 #import "EaseMarkdownTextView.h"
 #import "WebViewController.h"
+#import "UIViewController+BackButtonHandler.h"
 
 @interface FileEditViewController ()<UIWebViewDelegate>
 @property (strong, nonatomic) UISegmentedControl *segmentedControl;
@@ -104,6 +105,22 @@ - (void)configContent{
     }];
 }
 
+
+- (BOOL)navigationShouldPopOnBackButton{
+    BOOL hasChanged = ![self.content ?: @"" isEqualToString:_editView.text];
+    if (hasChanged) {
+        __weak typeof(self) weakSelf = self;
+        [[UIAlertController ea_alertViewWithTitle:@"提示" message:@"如果不保存，更改将丢失，是否确认返回？" buttonTitles:@[@"确认返回"] destructiveTitle:nil cancelTitle:@"取消" andDidDismissBlock:^(UIAlertAction *action, NSInteger index) {
+            if (index == 0) {
+                [weakSelf.navigationController popViewControllerAnimated:YES];
+            }
+        }] show];
+        return NO;
+    }else{
+        return YES;
+    }
+}
+
 #pragma mark UISegmentedControl
 - (void)segmentedControlSelected:(id)sender{
     UISegmentedControl *segmentedControl = (UISegmentedControl *)sender;

Coding_iOS/Views/EaseMarkdownTextView.m

@@ -58,11 +58,6 @@ - (NSArray *)buttons {
 
              [self createButtonWithTitle:@"@" andEventHandler:^{ [self doAT]; }],
 
-             [self createButtonWithTitle:@"#" andEventHandler:^{ [self insertText:@"#"]; }],
-             [self createButtonWithTitle:@"*" andEventHandler:^{ [self insertText:@"*"]; }],
-             [self createButtonWithTitle:@"`" andEventHandler:^{ [self insertText:@"`"]; }],
-             [self createButtonWithTitle:@"-" andEventHandler:^{ [self insertText:@"-"]; }],
-             
              [self createButtonWithTitle:@"照片" andEventHandler:^{ [self doPhoto]; }],
 
              [self createButtonWithTitle:@"标题" andEventHandler:^{ [self doTitle]; }],
@@ -72,6 +67,17 @@ - (NSArray *)buttons {
              [self createButtonWithTitle:@"引用" andEventHandler:^{ [self doQuote]; }],
              [self createButtonWithTitle:@"列表" andEventHandler:^{ [self doList]; }],
 
+             [self createButtonWithTitle:@"分割线" andEventHandler:^{
+                 NSRange selectionRange = self.selectedRange;
+                 NSString *insertStr = [self needPreNewLine]? @"\n\n------\n": @"\n------\n";
+                 
+                 selectionRange.location += insertStr.length;
+                 selectionRange.length = 0;
+                 
+                 [self insertText:insertStr];
+                 [self setSelectionRange:selectionRange];
+             }],
+
              [self createButtonWithTitle:@"链接" andEventHandler:^{
                  NSString *tipStr = @"在此输入链接地址";
                  NSRange selectionRange = self.selectedRange;
@@ -92,17 +98,11 @@ - (NSArray *)buttons {
                  [self setSelectionRange:selectionRange];
              }],
 
-             [self createButtonWithTitle:@"分割线" andEventHandler:^{
-                 NSRange selectionRange = self.selectedRange;
-                 NSString *insertStr = [self needPreNewLine]? @"\n\n------\n": @"\n------\n";
-                 
-                 selectionRange.location += insertStr.length;
-                 selectionRange.length = 0;
-                 
-                 [self insertText:insertStr];
-                 [self setSelectionRange:selectionRange];
-             }],
-             
+             [self createButtonWithTitle:@"#" andEventHandler:^{ [self insertText:@"#"]; }],
+             [self createButtonWithTitle:@"*" andEventHandler:^{ [self insertText:@"*"]; }],
+             [self createButtonWithTitle:@"`" andEventHandler:^{ [self insertText:@"`"]; }],
+             [self createButtonWithTitle:@"-" andEventHandler:^{ [self insertText:@"-"]; }],
+
              [self createButtonWithTitle:@"_" andEventHandler:^{ [self insertText:@"_"]; }],
              [self createButtonWithTitle:@"+" andEventHandler:^{ [self insertText:@"+"]; }],
              [self createButtonWithTitle:@"~" andEventHandler:^{ [self insertText:@"~"]; }],