From 3e8437ae559487362fae3525beb79c534c213a51 Mon Sep 17 00:00:00 2001
From: 单军华
Date: Thu, 12 Jul 2018 13:44:34 +0800
Subject: [PATCH] bug修复和功能优化

---
 screendisplay/Pods/IQKeyboardManager/IQKeyboardManager/IQTextView/IQTextView.m |  161 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 161 insertions(+), 0 deletions(-)

diff --git a/screendisplay/Pods/IQKeyboardManager/IQKeyboardManager/IQTextView/IQTextView.m b/screendisplay/Pods/IQKeyboardManager/IQKeyboardManager/IQTextView/IQTextView.m
new file mode 100644
index 0000000..0e6225c
--- /dev/null
+++ b/screendisplay/Pods/IQKeyboardManager/IQKeyboardManager/IQTextView/IQTextView.m
@@ -0,0 +1,161 @@
+//
+// IQTextView.m
+// https://github.com/hackiftekhar/IQKeyboardManager
+// Copyright (c) 2013-16 Iftekhar Qurashi.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+#import "IQTextView.h"
+
+#import <UIKit/NSTextContainer.h>
+#import <UIKit/UILabel.h>
+#import <UIKit/UINibLoading.h>
+
+@interface IQTextView ()
+
+@property(nonatomic, strong) UILabel *placeholderLabel;
+
+@end
+
+@implementation IQTextView
+
+@synthesize placeholder = _placeholder;
+@synthesize placeholderLabel = _placeholderLabel;
+@synthesize placeholderTextColor = _placeholderTextColor;
+
+-(void)initialize
+{
+    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(refreshPlaceholder) name:UITextViewTextDidChangeNotification object:self];
+}
+
+-(void)dealloc
+{
+    [_placeholderLabel removeFromSuperview];
+    _placeholderLabel = nil;
+    [[NSNotificationCenter defaultCenter] removeObserver:self];
+}
+
+- (instancetype)init
+{
+    self = [super init];
+    if (self) {
+        [self initialize];
+    }
+    return self;
+}
+
+-(void)awakeFromNib
+{
+    [super awakeFromNib];
+    [self initialize];
+}
+
+-(void)refreshPlaceholder
+{
+    if([[self text] length])
+    {
+        [_placeholderLabel setAlpha:0];
+    }
+    else
+    {
+        [_placeholderLabel setAlpha:1];
+    }
+    
+    [self setNeedsLayout];
+    [self layoutIfNeeded];
+}
+
+- (void)setText:(NSString *)text
+{
+    [super setText:text];
+    [self refreshPlaceholder];
+}
+
+-(void)setFont:(UIFont *)font
+{
+    [super setFont:font];
+    self.placeholderLabel.font = self.font;
+    
+    [self setNeedsLayout];
+    [self layoutIfNeeded];
+}
+
+-(void)setTextAlignment:(NSTextAlignment)textAlignment
+{
+    [super setTextAlignment:textAlignment];
+    self.placeholderLabel.textAlignment = textAlignment;
+    
+    [self setNeedsLayout];
+    [self layoutIfNeeded];
+}
+
+-(void)layoutSubviews
+{
+    [super layoutSubviews];
+
+    CGFloat offsetLeft = self.textContainerInset.left + self.textContainer.lineFragmentPadding;
+    CGFloat offsetRight = self.textContainerInset.right + self.textContainer.lineFragmentPadding;
+    CGFloat offsetTop = self.textContainerInset.top;
+    CGFloat offsetBottom = self.textContainerInset.bottom;
+
+    CGSize expectedSize = [self.placeholderLabel sizeThatFits:CGSizeMake(CGRectGetWidth(self.frame)-offsetLeft-offsetRight, CGRectGetHeight(self.frame)-offsetTop-offsetBottom)];
+    self.placeholderLabel.frame = CGRectMake(offsetLeft, offsetTop, expectedSize.width, expectedSize.height);
+}
+
+-(void)setPlaceholder:(NSString *)placeholder
+{
+    _placeholder = placeholder;
+    
+    self.placeholderLabel.text = placeholder;
+    [self refreshPlaceholder];
+}
+
+-(void)setPlaceholderTextColor:(UIColor*)placeholderTextColor
+{
+    _placeholderTextColor = placeholderTextColor;
+    self.placeholderLabel.textColor = placeholderTextColor;
+}
+
+-(UILabel*)placeholderLabel
+{
+    if (_placeholderLabel == nil)
+    {
+        _placeholderLabel = [[UILabel alloc] init];
+        _placeholderLabel.autoresizingMask = (UIViewAutoresizingFlexibleWidth|UIViewAutoresizingFlexibleHeight);
+        _placeholderLabel.lineBreakMode = NSLineBreakByWordWrapping;
+        _placeholderLabel.numberOfLines = 0;
+        _placeholderLabel.font = self.font;
+        _placeholderLabel.textAlignment = self.textAlignment;
+        _placeholderLabel.backgroundColor = [UIColor clearColor];
+        _placeholderLabel.textColor = [UIColor colorWithWhite:0.7 alpha:1.0];
+        _placeholderLabel.alpha = 0;
+        [self addSubview:_placeholderLabel];
+    }
+    
+    return _placeholderLabel;
+}
+
+//When any text changes on textField, the delegate getter is called. At this time we refresh the textView's placeholder
+-(id<UITextViewDelegate>)delegate
+{
+    [self refreshPlaceholder];
+    return [super delegate];
+}
+
+@end

--
Gitblit v1.8.0