Android Anko floatingActionButton缺少或存在冲突的依赖项
在跟随之后,我一直在尝试使用Android Anko floatingActionButton缺少或存在冲突的依赖项,android,user-interface,dependencies,kotlin,anko,Android,User Interface,Dependencies,Kotlin,Anko,在跟随之后,我一直在尝试使用org.jetbrains.anko.design.floatingActionButton。错误是: 无法访问类“android.support.design.widget.FloatingActionButton”。检查模块类路径是否缺少依赖项或存在冲突依赖项 build.gradle(项目) build.gradle(应用程序) MainUI.kt 导入android.support.v4.content.ContextCompat 导入android.view
org.jetbrains.anko.design.floatingActionButton
。错误是:
无法访问类“android.support.design.widget.FloatingActionButton”。检查模块类路径是否缺少依赖项或存在冲突依赖项
build.gradle(项目)
build.gradle(应用程序)
MainUI.kt
导入android.support.v4.content.ContextCompat
导入android.view.Gravity
导入android.view.view
导入android.widget.FrameLayout
导入android.widget.ListView
导入org.jetbrains.anko*
导入org.jetbrains.anko.appcompat.v7.toolbar
导入org.jetbrains.anko.design.floatingActionButton
导入org.jetbrains.anko.sdk25.coroutines.onitemlong单击
类MainUI(val todoAdapter:todoAdapter):AnkoComponent{
覆盖趣味createView(ui:AnkoContext):视图=使用(ui){
返回相对长度{
变量todoList:ListView?=null
//没有任务时显示的文本视图
val hintListView=textView(“今天的待办事项列表是什么?”){
textSize=20f
}.lparams{
centerInParent()
}
//用于在textView上方显示或隐藏的函数
趣味showHideHintListView(listView:listView){
如果(getTotalListItems(listView)>0){
hintListView.visibility=View.GONE
}否则{
hintListView.visibility=View.VISIBLE
}
}
//要显示ListView的布局
垂直布局{
todoList=listView{
适配器=todoAdapter
长点击{adapterView,view,i,l->
val options=listOf(“已完成”、“正在进行”、“未启动”、“删除”)
选择器(“任务选项”,选项){dialogInterface,j->
如果(j==3){
var task=adapter.getItem(i)
todoAdapter?删除(i)
showHideHintListView(this@listView)
longToast(“任务${Task}已被删除”)
}否则{
longToast(“任务${adapter.getItem(i).toString()}已标记为\“${options[j]}\”)
}
}
真的
}
}
}.lparams{
边缘=倾角(5)
}
//在右下角添加任务浮动操作按钮
floatingActionButton{//你的应用程序build.gradle
file
我认为你正在这个项目中做改变。
你需要遵循这个
及
你的应用程序build.gradle
文件
我认为你正在这个项目中做改变。
你需要遵循这个
及
我也有同样的问题,要解决它,你只需要添加Android支持设计依赖项。因为,在你的例子中,你试图使用Anko布局库添加一个FAB,它依赖于上面引用的库
只需将以下内容添加到应用程序依赖项:
implementation 'com.android.support:design:26.1.0'
我也有同样的问题,要解决它,你只需要添加Android支持设计依赖项。因为,在你的例子中,你试图使用Anko布局库添加一个FAB,它依赖于上面引用的库
只需将以下内容添加到应用程序依赖项:
implementation 'com.android.support:design:26.1.0'
谢谢!不幸的是,本教程中有相当多的bug,所以我将删除它。不清楚这些设置中的哪一个是问题谢谢!不幸的是,本教程中有相当多的bug,所以我将删除它。不清楚这些设置中的哪一个是问题
import android.support.v4.content.ContextCompat
import android.view.Gravity
import android.view.View
import android.widget.FrameLayout
import android.widget.ListView
import org.jetbrains.anko.*
import org.jetbrains.anko.appcompat.v7.toolbar
import org.jetbrains.anko.design.floatingActionButton
import org.jetbrains.anko.sdk25.coroutines.onItemLongClick
class MainUI(val todoAdapter: TodoAdapter) : AnkoComponent<MainActivity> {
override fun createView(ui: AnkoContext<MainActivity>): View = with(ui) {
return relativeLayout {
var todoList : ListView? =null
//textView displayed when there is no task
val hintListView = textView("What's your Todo List for today?") {
textSize = 20f
}.lparams {
centerInParent()
}
//function to show or hide above textView
fun showHideHintListView(listView: ListView) {
if (getTotalListItems(listView)>0) {
hintListView.visibility = View.GONE
} else {
hintListView.visibility = View.VISIBLE
}
}
//layout to display ListView
verticalLayout {
todoList=listView {
adapter = todoAdapter
onItemLongClick { adapterView, view, i, l ->
val options = listOf("Completed","In Progress","Not Started","Delete")
selector("Task Options", options) {dialogInterface, j ->
if (j == 3) {
var task=adapter.getItem(i)
todoAdapter?.delete(i)
showHideHintListView(this@listView)
longToast("Task ${task} has been deleted")
}else{
longToast("Task ${adapter.getItem(i).toString()} has been marked as \"${options[j]}\"")
}
}
true
}
}
}.lparams {
margin = dip(5)
}
//Add task FloatingActionButton at bottom right
floatingActionButton { // <-- HERE
imageResource = android.R.drawable.ic_input_add
onClick {
val adapter = todoList?.adapter as TodoAdapter
alert {
customView {
verticalLayout {
toolbar {
id = R.id.dialog_toolbar
lparams(width = matchParent, height = wrapContent)
backgroundColor = ContextCompat.getColor(ctx, R.color.colorAccent)
title = "What's your next milestone?"
setTitleTextColor(ContextCompat.getColor(ctx, android.R.color.white))
}
val task = editText {
hint = "To do task "
padding = dip(20)
}
positiveButton("Add") {
if(task.text.toString().isEmpty()) {
toast("Oops!! Your task says nothing!")
}
else {
adapter.add(task.text.toString())
showHideHintListView(todoList!!)
}
}
}
}
}.show()
}
}.lparams {
//setting button to bottom right of the screen
margin = dip(10)
alignParentBottom()
alignParentEnd()
alignParentRight()
gravity = Gravity.BOTTOM or Gravity.END
}
}.apply {
layoutParams = FrameLayout.LayoutParams(matchParent, matchParent)
.apply {
leftMargin = dip(5)
rightMargin = dip(5)
}
}
}
//function to get total number of items in list
fun getTotalListItems(list: ListView?) = list?.adapter?.count ?: 0
}
distributionUrl=https\://services.gradle.org/distributions/gradle-3.5-all.zip
implementation 'com.android.support:design:26.1.0'