FATAL EXCEPTION: main
Process: com.example.organizeme, PID: 6281
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.organizeme/com.example.organizeme.SplashActivity}: kotlin.UninitializedPropertyAccessException: lateinit property binding has not been initialized
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2646)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2707)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1460)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6077)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:866)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:756)
Caused by: kotlin.UninitializedPropertyAccessException: lateinit property binding has not been initialized
at com.example.organizeme.SplashActivity.onCreate(SplashActivity.kt:31)
at android.app.Activity.performCreate(Activity.java:6662)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1118)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2599)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2707)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1460)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6077)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:866)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:756)
我尝试在网上搜索解决错误,但无法得到一个清晰或简洁的解决方案的错误
- SplashActivity.kt*
package com.example.organizeme
import android.annotation.SuppressLint
import android.graphics.Typeface
import android.os.Build
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.view.WindowInsets
import android.view.WindowManager
import com.example.organizeme.databinding.ActivitySplashBinding
@SuppressLint("CustomSplashScreen")
class SplashActivity : AppCompatActivity() {
private lateinit var binding: ActivitySplashBinding
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_splash)
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
window.insetsController?.hide(WindowInsets.Type.statusBars())
} else {
@Suppress("DEPRECATION")
window.setFlags(
WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN
)
}
val view = binding.root
setContentView(view)
val typeFace : Typeface = Typeface.createFromAsset(assets, "carbon bl.otf")
binding.tvAppName.typeface = typeFace
}
}
- activity_splash.xml*
<?xml version="1.0" encoding="utf-8"?>
<!--suppress XmlUnusedNamespaceDeclaration -->
<LinearLayout 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:gravity="center"
android:background="@drawable/splash_screen"
tools:context=".SplashActivity">
<TextView
android:id="@+id/tvAppName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:text="@string/app_name"
android:textColor="@android:color/white"
android:textSize="@dimen/splash_screen_title_text_size"
android:textStyle="bold" />
</LinearLayout>
- Android Manifest.xml*
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools">
<application
android:allowBackup="true"
android:dataExtractionRules="@xml/data_extraction_rules"
android:fullBackupContent="@xml/backup_rules"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/Theme.OrganizeMe"
tools:targetApi="31">
<activity
android:name=".SplashActivity"
android:screenOrientation="fullSensor"
android:exported="true"
android:label="@string/title_activity_splash"
android:theme="@style/Theme.OrganizeMe" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".MainActivity"
android:exported="true">
</activity>
</application>
</manifest>
1条答案
按热度按时间hkmswyz61#
stacktrace中的第一行声明:“lateinit属性绑定尚未初始化”。在SplashActivity内部的onCreate方法中,没有对绑定变量进行赋值。
在documentation中可以看到,需要使用inflate方法来初始化绑定变量。
还请注意,在原始代码中,您调用了两次setContentView。