yinmeng-ios/xplan-ios/Main/Message/Session/SendMessageView.m

//
//  SendMessageView.m
//  xplan-ios
//
//  Created by zu on 2021/11/28.
//

#import "SendMessageView.h"
#import <Masonry/Masonry.h>
#import <NIMSDK/NIMSDK.h>
#import "ThemeColor.h"
#import "XPMacro.h"
#import "UIImage+Utils.h"

@interface SendMessageView ()

@property (nonatomic, strong) UIStackView *stackView;
@property (nonatomic, strong) UIView *inputBackgroundView;
@property (nonatomic, strong) UITextField *inputView;
@property (nonatomic, strong) UIButton *sendButton;

@end

#define VIEW_HEIGHT (kSafeAreaBottomHeight + 50)

@implementation SendMessageView

- (void)dealloc {
    [[NSNotificationCenter defaultCenter] removeObserver:self];
}

- (instancetype)init {
    self = [super initWithFrame:CGRectMake(0, KScreenHeight - VIEW_HEIGHT, KScreenWidth, VIEW_HEIGHT)];
    if (self) {
        [self addNotification];
        [self initViews];
        [self initLayout];
    }
    return self;
}

- (void)sendMessage:(UIButton *)sender {
    if (self.delegate && [self.delegate respondsToSelector:@selector(sendTextMessage:)]) {
        [self.delegate sendTextMessage:self.inputView.text];
    }
    self.inputView.text = @"";
    self.sendButton.enabled = self.inputView.text.length > 0;
}

- (void)keyboardWillShow:(NSNotification *)notification {
    [self.superview bringSubviewToFront:self];
    NSDictionary *info = [notification userInfo];
    CGRect keyboardFrame = [[info objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue];
    NSNumber *curve = [info objectForKey:UIKeyboardAnimationCurveUserInfoKey];
    CGFloat duration = [[info objectForKey:UIKeyboardAnimationDurationUserInfoKey] floatValue];
    
    CGRect newFrame = self.frame;
    newFrame.origin.y = self.superview.frame.size.height - keyboardFrame.size.height - 50;
    
    UIViewAnimationOptions options = (UIViewAnimationOptions)curve << 16;
    [UIView animateWithDuration:duration delay:0.0 options:options animations:^{
        self.frame = newFrame;
        [self mas_remakeConstraints:^(MASConstraintMaker *make) {
            make.left.right.equalTo(self.superview);
            make.bottom.equalTo(self.superview).offset(-keyboardFrame.size.height + kSafeAreaBottomHeight);
            make.height.equalTo(@(VIEW_HEIGHT));
        }];
    } completion:nil];
}

- (void)keyboardWillHidden:(NSNotification *)notification {
    NSDictionary *info = [notification userInfo];
    NSNumber *curve = [info objectForKey:UIKeyboardAnimationCurveUserInfoKey];
    CGFloat duration = [[info objectForKey:UIKeyboardAnimationDurationUserInfoKey] floatValue];
    
    CGRect newFrame = self.frame;
    newFrame.origin.y = self.superview.frame.size.height - VIEW_HEIGHT;
    
    UIViewAnimationOptions options = (UIViewAnimationOptions)curve << 16;
    [UIView animateWithDuration:duration delay:0.0 options:options animations:^{
        self.frame = newFrame;
        [self mas_remakeConstraints:^(MASConstraintMaker *make) {
            make.bottom.left.right.equalTo(self.superview);
            make.height.equalTo(@(VIEW_HEIGHT));
        }];
    } completion:nil];
}

-(void)textFieldEditChanged:(NSNotification *)notification{
    self.sendButton.enabled = self.inputView.text.length > 0;
}

- (void)initViews {
    self.backgroundColor = [ThemeColor appCellBackgroundColor];
    [self addSubview:self.stackView];
    [self.inputBackgroundView addSubview:self.inputView];
    [self.stackView addArrangedSubview:self.inputBackgroundView];
    [self.stackView addArrangedSubview:self.sendButton];
}

- (void)initLayout {
    [self.stackView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.mas_equalTo(self).offset(15);
        make.right.mas_equalTo(self).offset(-15);
        make.top.mas_equalTo(self);
        make.bottom.mas_equalTo(self).offset(-kSafeAreaBottomHeight);
    }];
    
    [self.sendButton mas_makeConstraints:^(MASConstraintMaker *make) {
        make.width.mas_equalTo(50);
        make.top.bottom.mas_equalTo(self.stackView).inset(10);
    }];
    
    [self.inputBackgroundView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.height.mas_equalTo(36);
        make.left.mas_equalTo(self.stackView);
        make.right.mas_equalTo(self.sendButton.mas_left).offset(-15);
    }];
    
    [self.inputView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.mas_equalTo(self.inputBackgroundView).offset(8);
        make.right.mas_equalTo(self.inputBackgroundView).offset(-8);
        make.centerY.mas_equalTo(self.inputBackgroundView);
    }];
    
    [self mas_makeConstraints:^(MASConstraintMaker *make) {
        make.height.mas_equalTo(VIEW_HEIGHT);
    }];
}

- (void)addNotification {
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillHidden:) name:UIKeyboardWillHideNotification object:nil];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillShow:) name:UIKeyboardWillShowNotification object:nil];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(textFieldEditChanged:) name:UITextFieldTextDidChangeNotification object:self.inputView];
}

- (UIStackView *)stackView {
    if (!_stackView) {
        _stackView = [[UIStackView alloc] init];
        _stackView.axis = UILayoutConstraintAxisHorizontal;
        _stackView.distribution = UIStackViewDistributionFill;
        _stackView.alignment = UIStackViewAlignmentCenter;
        _stackView.spacing = 10;
    }
    return _stackView;
}

- (UITextField *)inputView{
    if (!_inputView) {
        _inputView = [[UITextField alloc] init];
        NSAttributedString * attribute = [[NSAttributedString alloc] initWithString:@"请输入消息" attributes:@{NSFontAttributeName : [UIFont systemFontOfSize:15], NSForegroundColorAttributeName :UIColorFromRGB(0x555574)}];
        _inputView.attributedPlaceholder = attribute;
        _inputView.borderStyle = UITextBorderStyleNone;
        _inputView.tintColor = [ThemeColor appMainColor];
        _inputView.textColor = [ThemeColor mainTextColor];
        _inputView.font = [UIFont systemFontOfSize:13.f];
        [_inputView setContentHuggingPriority:UILayoutPriorityDefaultLow forAxis:UILayoutConstraintAxisHorizontal];
        
    }
    return _inputView;
}

- (UIView *)inputBackgroundView {
    if (!_inputBackgroundView) {
        _inputBackgroundView = [[UIView alloc] init];
        _inputBackgroundView.backgroundColor = UIColorFromRGB(0x35354B);
        _inputBackgroundView.layer.masksToBounds = YES;
        _inputBackgroundView.layer.cornerRadius = 4.f;
    }
    return _inputBackgroundView;
}

- (UIButton *)sendButton{
    if (!_sendButton) {
        _sendButton = [[UIButton alloc] init];
        [_sendButton setTitle:@"发送" forState:UIControlStateNormal];
        _sendButton.titleLabel.textColor = [ThemeColor mainTextColor];
        _sendButton.titleLabel.font = [UIFont systemFontOfSize:15];
        [_sendButton setBackgroundImage:[UIImage imageWithColor:[ThemeColor disableButtonColor] ]forState:UIControlStateDisabled];
        [_sendButton setBackgroundImage:[UIImage gradientColorImageFromColors:@[[ThemeColor confirmButtonGradientStartColor], [ThemeColor confirmButtonGradientEndColor]] gradientType:GradientTypeLeftToRight imgSize:CGSizeMake(10, 10)] forState:UIControlStateNormal];
        _sendButton.enabled = NO;
        _sendButton.layer.cornerRadius = 5.0;
        _sendButton.layer.masksToBounds = YES;
        [_sendButton addTarget:self action:@selector(sendMessage:) forControlEvents:UIControlEventTouchUpInside];
    }
    return _sendButton;
}

@end