java - 无法从主要 Activity 转到另一个 Activity ，应用程序崩溃

Question

我的应用程序正在打开，一切正常，但是当我单击列表时，突然崩溃(说....已停止)，我创建了一个列表并使用了自定义数组适配器。直到现在一切都很好。但是当我创建一个新 Activity 并定义设置“On Item Click Listener”以转到新 Activity 时，应用程序突然崩溃。我不明白为什么。有人可以帮我解决这个问题吗？

我尝试使用 Intent 和 bundle 将数据从主 Activity 发送到新 Activity ，但它们都是相同的。我已经调整了图像大小并应用了它，它再次崩溃。无论我一直试图解决问题，都不起作用((

-

<小时/>

主要 Activity

ListCountries.setOnItemClickListener { parent, view , position, id ->



     intent=Intent(this@MainActivity,CountriesSpecialitesActivity::class.java)
                intent.putExtra("ıtemClickedPosition",position)
                intent.putExtra("allCountriesİnfos",allCountriesInformations)
                startActivity(intent)
            }

...

新 Activity

...

 position=intent.extras?.get("item Clicked Position") as Int
    all Countries Information=intent.extras?.get("all Countries İnfo") as 
    Array List<Country>    


text view Country Spec. set Text(all County Info.get(position).countries Gen Spec)

...

我收到错误:

java .lang . Run time Exception : Unable to start activity Component Info: android.view.Inflate Exception: Binary XML file line #2: Error inflating class android.support.design.widget.Coordinator Layout at android.app.Activity Thread.perform Launch Activity(Activity Thread.java:2298) at android.app.Activity Thread.handle Launch Activity(Activity Thread.java:2360) at android.app.Activity Thread.access$800(Activity Thread.java:144) at android.app.Activity Thread $H.handle Message(Activity Thread.java:1278) at android . Handler. dispatch Message(Handler.java:102)

由新 Activity 加载的布局

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true">

    <android.support.design.widget.AppBarLayout
        android:id="@+id/appbar"
        android:layout_width="match_parent"
        android:layout_height="256dp"
        android:fitsSystemWindows="true"
        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

        <android.support.design.widget.CollapsingToolbarLayout
            android:id="@+id/collapsing_toolbar"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:fitsSystemWindows="true"
            app:contentScrim="?attr/colorPrimary"
            app:expandedTitleMarginStart="100dp"
            app:layout_scrollFlags="scroll|exitUntilCollapsed|snap">

            <ImageView
                android:id="@+id/header"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:background="@drawable/kara_buyu_buyuk"
                android:fitsSystemWindows="true"
                android:scaleType="centerCrop"
                app:layout_collapseMode="parallax"/>


            <View
                android:layout_width="match_parent"
                android:layout_height="160dp"
                android:layout_gravity="bottom"
                android:background="@drawable/scrim"/>

            <android.support.v7.widget.Toolbar
                android:id="@+id/anim_toolbar"
                android:layout_width="match_parent"
                android:layout_height="?attr/actionBarSize"
                app:layout_collapseMode="pin"
                app:popupTheme="@style/ThemeOverlay.AppCompat.Light"/>

        </android.support.design.widget.CollapsingToolbarLayout>

    </android .support. design .widget. App Bar Layout>

    <android x. core. widget. Nested Scroll View
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_behavior="@string/  app bar_scrolling_view_behavior">

        <Linear Layout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            >
            <Text View
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:id="@+id/text view Country Spec">

            </Text View>

        </Linear Layout>


    </android x. core.widget. Nested Scroll View>


</android. support. design. widget. Coordinator Layout>

Answer 1

尝试了您的代码，问题出在库上。

implementation 'com.android.support:appcompat-v7:{yourversion}' // appcompat library
implementation 'com.android.support:design:{yourversion}'