lvsecoto

import 'package:flutter/material.dart';

class AnimatedSizeAndFade extends StatelessWidget {
  /// 每当Child内容发送改变，就会产生动画
  ///
  /// * 大小发送改变，会有边界变换效果
  /// * 内容变化，会有淡出淡入效果(和大小变化不一样，内容变化是通过[child]的类型或者key识别)
  /// * 可以指定变化时，组件对齐的位置，比如一个上下展开收起效果的组件，那么它的[alignment]应该传[Alignment.topCenter]
  const AnimatedSizeAndFade({
    super.key,

lvsecoto

/// 这里通过mixin给ProviderNotifier添加一些常用操作
// ignore_for_file: invalid_use_of_internal_member

library provider.notiifer;

import 'dart:async';

import 'package:flutter/cupertino.dart';
import 'package:freezed_annotation/freezed_annotation.dart';
import 'package:riverpod/riverpod.dart';

lvsecoto

import 'package:flutter/material.dart';

Widget _defaultAnimationWidgetBuilder(
  BuildContext context,
  Animation<double> animation,
  Widget? child,
) {
  return SizeTransition(
    axis: Axis.horizontal,
    sizeFactor: animation,

lvsecoto

/// 对象状态[T]的历史堆栈，可以推入或者弹出
class HistoryStack<T> {

  /// 最大索引的数据，即为最新的状态
  final _store = <T>[];

  /// 读取内容，用于保存的数据
  ({
    List<T> store,
    int step,

lvsecoto

# 修改应用图标
# 1. 添加依赖
# flutter pub add dev:flutter_launcher_icons
# 2. 运行
# flutter pub run flutter_launcher_icons
flutter_launcher_icons:
  android: "launcher_icon"
  ios: true
  macos:
    generate: true

lvsecoto

import Foundation

func hexCharAsNumber(_ char: String) -> Int64 {
    assert(char.count == 1)
    
    let c = Int64((char as NSString).character(at: 0))
    
    if c >= Int(("a" as NSString).character(at: 0)) {
        return c - 87
    }  else {

lvsecoto

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

public class TKCalculateUtils {

    public static long hexCharAsNumber(char c) {
        if (c >= 'a') {
            return c - 87;
        }  else {

lvsecoto

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.graphics.Color;
import android.os.Build;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.Gravity;
import android.view.View;

lvsecoto

private static LifecycleOwner mockLifecycleOwner() {
    LifecycleOwner owner = mock(LifecycleOwner.class);
    LifecycleRegistry lifecycle = new LifecycleRegistry(owner);
    lifecycle.handleLifecycleEvent(Lifecycle.Event.ON_RESUME);
    when(owner.getLifecycle()).thenReturn(lifecycle);
    return owner;
}

lvsecoto

import android.arch.lifecycle.LiveData;
import android.arch.lifecycle.MutableLiveData;
import android.arch.lifecycle.Transformations;

/**
 * 每当输入一个参数{@link #input(Object)}，就回调{@link OnGetLiveData}，生成一个LiveData
 */
public class ActionLiveData<InputType, ResultType> {

    private MutableLiveData<InputType> mInput = new EventMutableLiveData<>();