Java Android应用程序在设备上的白色屏幕上启动

我是Android开发者的新手，我也经历过类似的话题，但还没有帮助。 在我添加扫描二维码的功能之前，我创建了一个应用程序，它正在运行。它在模拟器上工作，但当我在三星设备上运行它时，它会启动到一个白色屏幕，我的日志是这样写的：

Launching app
No apk changes detected since last installation, skipping installation of .....
$ adb shell am force-stop com.KtvrBusSerice.KtvrBusService.KtvrBusService
$ adb shell am start -n "com.KtvrBusSerice.KtvrBusService.KtvrBusService/com.KtvrBusSerice.KtvrBusService.KtvrBusService.LoginActivity" -a android.intent.action.MAIN -c android.intent.category.LAUNCHER
Client not ready yet..Waiting for process to come online
Waiting for process to come online
Waiting for process to come online
Waiting for process to come online
Waiting for process to come online
Waiting for process to come online
Waiting for process to come online
Waiting for process to come online
Waiting for process to come online
Waiting for process to come online
Waiting for process to come online
Waiting for process to come online
Connected to process 22097 on device samsung-sm_g930f-0123456789ABCDEF
D/jdwp: sendBufferedRequest : len=0x79
Application terminated.

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这是由于冷启动问题。参考

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如果在启动时执行大量初始化，则可能会发生此情况。

将此项添加到您的应用程序中的AndroidManifest.xml

<application>
    android:allowBackup="true"
    android:hardwareAccelerated="false"
    android:largeHeap="true"
</application>

android:allowBackup=“true”
android:hardwareAccelerated=“false”
android:largeHeap=“true”

您正在使用哪个android studio版本？请尝试将调试器连接到android进程Aditya Vyas Lakkan 2.2版。3@Egek92我试过了，但OK按钮变灰了。我将代码添加到清单中，但现在我的日志中出现了“03:02:43 PM执行任务：[：app:assembleDebug]03:03:31 PM Gradle构建在47s 288ms中完成03:06:44 PM会话“应用程序”：启动活动时出错“肯定还有其他错误。”。你能粘贴相同的吗？尝试卸载应用程序，然后重新安装应用程序