Android应用启动缓慢，但在缓慢启动后工作正常

时间：2015-07-19 13:21:03

标签： java android performance gradle libraries

我更新了Android应用的代码，包括：

  • ActiveAndroid
  • TargetsdkVersion 22（现在布局中有一些Material Design元素）
  • MinSdkVersion 9（这也是我之前的版本）
  • Google Analytics v4，Google Play服务的一部分

我的早期版本是在Eclipse中创建的，此更新我正在使用Android Studio。导入无效，因此我在Android studio中重新创建了该项目。而对于主要部分，它似乎工作正常。

但是，当应用程序第一次启动时，它很慢。在主屏幕显示之前，需要大约1.5秒的时间盯着白色屏幕。之后，该应用程序运行良好，快速。

重新启动它，将应用程序保留在内存中时会立即启动。如果您将应用程序从内存中取出，则需要另外1.5秒（/ 2秒）才能开始使用。

我在Nexus 7（2013）和FairPhone（Android 4.2.2）上进行了测试。我不明白问题出在哪里，也许你可以帮助我。解决方案会很棒，但即使指出原因也会有很大帮助。

App.java的相关代码（扩展应用程序）：

@Override
public void onCreate() {
    super.onCreate();
    mContext = this;

    Log.v("App","onCreate App - before GoogleAnalytics.getInstance(this)");

    analytics = GoogleAnalytics.getInstance(this);
    analytics.setLocalDispatchPeriod(1800); // every 30 minutes
    tracker = analytics.newTracker("REMOVED CODE FOR STACKOVERLOW");
    tracker.enableExceptionReporting(true);

    // Since I do this 'by hand', enabling automatic will amount to double counting.
    tracker.enableAutoActivityTracking(false);

    Log.v("App", "onCreate App - after GA");


    // Because it is initialized here, we don't need to put it as the application in Manifest
    // This means we can use Google Analytics code referring to 'getApplication'.
    ActiveAndroid.initialize(this);

    Log.v("App", "onCreate App - after AA");

Gradle文件：

apply plugin: 'com.android.application'

android {
    compileSdkVersion 22
    buildToolsVersion "22.0.1"

    repositories {
        mavenCentral()
        maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
    }

    defaultConfig {
        applicationId "com.juliushuijnk.tools.ideagrowr"
        minSdkVersion 9
        targetSdkVersion 22
        versionCode 38
        versionName "1.38"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.google.android.gms:play-services:7.5.0'
    compile 'com.android.support:appcompat-v7:22.2.1'
    compile 'com.android.support:support-v4:22.2.1'
    compile 'uk.co.ribot:easyadapter:1.4.0@aar'
    compile 'com.michaelpardo:activeandroid:3.1.0-SNAPSHOT'
}

登录我的Fairphone（android 4.2.2）

    07-19 14:18:24.517  18930-18930/com.juliushuijnk.tools.ideagrowr V/App﹕ onCreate App - before GoogleAnalytics.getInstance(this)
    07-19 14:18:24.527  18930-18930/com.juliushuijnk.tools.ideagrowr I/dalvikvm﹕ Could not find method android.app.Notification$Builder.setLocalOnly, referenced from method com.google.android.gms.common.GooglePlayServicesUtil.zza
    07-19 14:18:24.527  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ VFY: unable to resolve virtual method 245: Landroid/app/Notification$Builder;.setLocalOnly (Z)Landroid/app/Notification$Builder;
    07-19 14:18:24.528  18930-18930/com.juliushuijnk.tools.ideagrowr I/dalvikvm﹕ DexOpt: access denied from Lcom/google/android/gms/common/GooglePlayServicesUtil; to field Landroid/app/Notification;.extras
    07-19 14:18:24.528  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ VFY: unable to resolve instance field 18
    07-19 14:18:24.528  18930-18930/com.juliushuijnk.tools.ideagrowr E/dalvikvm﹕ Could not find class 'android.app.AppOpsManager', referenced from method com.google.android.gms.common.GooglePlayServicesUtil.zza
    07-19 14:18:24.528  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ VFY: unable to resolve check-cast 25 (Landroid/app/AppOpsManager;) in Lcom/google/android/gms/common/GooglePlayServicesUtil;
    07-19 14:18:24.530  18930-18930/com.juliushuijnk.tools.ideagrowr I/dalvikvm﹕ Could not find method android.content.pm.PackageManager.getPackageInstaller, referenced from method com.google.android.gms.common.GooglePlayServicesUtil.zzh
    07-19 14:18:24.530  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ VFY: unable to resolve virtual method 553: Landroid/content/pm/PackageManager;.getPackageInstaller ()Landroid/content/pm/PackageInstaller;
    07-19 14:18:24.534  18930-18930/com.juliushuijnk.tools.ideagrowr I/GAv4﹕ Google Analytics 7.5.71 is starting up. To enable debug logging on a device run:
        adb shell setprop log.tag.GAv4 DEBUG
        adb logcat -s GAv4
    07-19 14:18:24.538  18930-18930/com.juliushuijnk.tools.ideagrowr W/GAv4﹕ String xml configuration name not recognized: com.juliushuijnk.tools.ideagrowr.MainActivity
    07-19 14:18:24.547  18930-18930/com.juliushuijnk.tools.ideagrowr W/GAv4﹕ String xml configuration name not recognized: com.juliushuijnk.tools.ideagrowr.AllIdeasActivity
    07-19 14:18:24.548  18930-18930/com.juliushuijnk.tools.ideagrowr W/GAv4﹕ String xml configuration name not recognized: com.juliushuijnk.tools.ideagrowr.AllNotesActivity
    07-19 14:18:24.548  18930-18930/com.juliushuijnk.tools.ideagrowr W/GAv4﹕ String xml configuration name not recognized: com.juliushuijnk.tools.ideagrowr.CreateIdeaActivity
    07-19 14:18:24.548  18930-18930/com.juliushuijnk.tools.ideagrowr W/GAv4﹕ String xml configuration name not recognized: com.juliushuijnk.tools.ideagrowr.CreateNoteActivity
    07-19 14:18:24.549  18930-18930/com.juliushuijnk.tools.ideagrowr W/GAv4﹕ String xml configuration name not recognized: com.juliushuijnk.tools.ideagrowr.DeleteIdeaActivity
    07-19 14:18:24.549  18930-18930/com.juliushuijnk.tools.ideagrowr W/GAv4﹕ String xml configuration name not recognized: com.juliushuijnk.tools.ideagrowr.OverviewActivity
    07-19 14:18:24.549  18930-18930/com.juliushuijnk.tools.ideagrowr W/GAv4﹕ String xml configuration name not recognized: com.juliushuijnk.tools.ideagrowr.InfoActivity
    07-19 14:18:24.550  18930-18930/com.juliushuijnk.tools.ideagrowr W/GAv4﹕ String xml configuration name not recognized: com.juliushuijnk.tools.ideagrowr.EditQsetActivity
    07-19 14:18:24.550  18930-18930/com.juliushuijnk.tools.ideagrowr W/GAv4﹕ String xml configuration name not recognized: com.juliushuijnk.tools.ideagrowr.LikeActivity
    07-19 14:18:24.550  18930-18930/com.juliushuijnk.tools.ideagrowr W/GAv4﹕ String xml configuration name not recognized: com.juliushuijnk.tools.ideagrowr.MigrateDatabaseActivity
    07-19 14:18:24.550  18930-18930/com.juliushuijnk.tools.ideagrowr W/GAv4﹕ String xml configuration name not recognized: com.juliushuijnk.tools.ideagrowr.SettingsActivity
    07-19 14:18:24.551  18930-18930/com.juliushuijnk.tools.ideagrowr W/GAv4﹕ String xml configuration name not recognized: com.juliushuijnk.tools.ideagrowr.UpdateCoreActivity
    07-19 14:18:24.553  18930-18930/com.juliushuijnk.tools.ideagrowr W/GAv4﹕ Bool xml configuration name not recognized: ga_reportUncaughtExceptions
    07-19 14:18:24.573  18930-18930/com.juliushuijnk.tools.ideagrowr V/App﹕ onCreate App - after GA
    07-19 14:18:24.636  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ Unable to resolve superclass of Landroid/support/v4/app/ActivityCompat21$SharedElementCallbackImpl; (54)
    07-19 14:18:24.636  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ Link of class 'Landroid/support/v4/app/ActivityCompat21$SharedElementCallbackImpl;' failed
    07-19 14:18:24.666  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ Unable to resolve superclass of Landroid/support/v4/app/FragmentTransitionCompat21$1; (1697)
    07-19 14:18:24.666  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ Link of class 'Landroid/support/v4/app/FragmentTransitionCompat21$1;' failed
    07-19 14:18:24.667  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ Unable to resolve superclass of Landroid/support/v4/app/FragmentTransitionCompat21$3; (1697)
    07-19 14:18:24.667  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ Link of class 'Landroid/support/v4/app/FragmentTransitionCompat21$3;' failed
    07-19 14:18:24.687  18930-18930/com.juliushuijnk.tools.ideagrowr I/dalvikvm﹕ Failed resolving Landroid/support/v4/media/TransportMediatorJellybeanMR2$1; interface 1775 'Landroid/view/ViewTreeObserver$OnWindowAttachListener;'
    07-19 14:18:24.687  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ Link of class 'Landroid/support/v4/media/TransportMediatorJellybeanMR2$1;' failed
    07-19 14:18:24.688  18930-18930/com.juliushuijnk.tools.ideagrowr I/dalvikvm﹕ Failed resolving Landroid/support/v4/media/TransportMediatorJellybeanMR2$2; interface 1776 'Landroid/view/ViewTreeObserver$OnWindowFocusChangeListener;'
    07-19 14:18:24.688  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ Link of class 'Landroid/support/v4/media/TransportMediatorJellybeanMR2$2;' failed
    07-19 14:18:24.689  18930-18930/com.juliushuijnk.tools.ideagrowr I/dalvikvm﹕ Failed resolving Landroid/support/v4/media/TransportMediatorJellybeanMR2; interface 197 'Landroid/media/RemoteControlClient$OnGetPlaybackPositionListener;'
    07-19 14:18:24.689  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ Link of class 'Landroid/support/v4/media/TransportMediatorJellybeanMR2;' failed
    07-19 14:18:24.690  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ Unable to resolve superclass of Landroid/support/v4/media/VolumeProviderCompatApi21$1; (202)
    07-19 14:18:24.690  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ Link of class 'Landroid/support/v4/media/VolumeProviderCompatApi21$1;' failed
    07-19 14:18:24.705  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ Unable to resolve superclass of Landroid/support/v4/media/session/MediaControllerCompatApi21$CallbackProxy; (203)
    07-19 14:18:24.705  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ Link of class 'Landroid/support/v4/media/session/MediaControllerCompatApi21$CallbackProxy;' failed
    07-19 14:18:24.708  18930-18930/com.juliushuijnk.tools.ideagrowr I/dalvikvm﹕ Failed resolving Landroid/support/v4/media/session/MediaSessionCompatApi18$OnPlaybackPositionUpdateListener; interface 199 'Landroid/media/RemoteControlClient$OnPlaybackPositionUpdateListener;'
    07-19 14:18:24.708  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ Link of class 'Landroid/support/v4/media/session/MediaSessionCompatApi18$OnPlaybackPositionUpdateListener;' failed
    07-19 14:18:24.709  18930-18930/com.juliushuijnk.tools.ideagrowr I/dalvikvm﹕ Failed resolving Landroid/support/v4/media/session/MediaSessionCompatApi19$OnMetadataUpdateListener; interface 198 'Landroid/media/RemoteControlClient$OnMetadataUpdateListener;'
    07-19 14:18:24.709  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ Link of class 'Landroid/support/v4/media/session/MediaSessionCompatApi19$OnMetadataUpdateListener;' failed
    07-19 14:18:24.816  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ Unable to resolve superclass of Landroid/support/v4/media/session/MediaSessionCompatApi21$CallbackProxy; (207)
    07-19 14:18:24.816  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ Link of class 'Landroid/support/v4/media/session/MediaSessionCompatApi21$CallbackProxy;' failed
    07-19 14:18:24.823  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ Unable to resolve superclass of Landroid/support/v4/print/PrintHelperKitkat$1; (264)
    07-19 14:18:24.823  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ Link of class 'Landroid/support/v4/print/PrintHelperKitkat$1;' failed
    07-19 14:18:24.824  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ Unable to resolve superclass of Landroid/support/v4/print/PrintHelperKitkat$2; (264)
    07-19 14:18:24.824  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ Link of class 'Landroid/support/v4/print/PrintHelperKitkat$2;' failed
    07-19 14:18:24.847  18930-18930/com.juliushuijnk.tools.ideagrowr I/dalvikvm﹕ Failed resolving Landroid/support/v4/view/ViewCompatLollipop$1; interface 1754 'Landroid/view/View$OnApplyWindowInsetsListener;'
    07-19 14:18:24.847  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ Link of class 'Landroid/support/v4/view/ViewCompatLollipop$1;' failed
    07-19 14:18:24.867  18930-18930/com.juliushuijnk.tools.ideagrowr I/dalvikvm﹕ Failed resolving Landroid/support/v4/widget/DrawerLayoutCompatApi21$InsetsListener; interface 1754 'Landroid/view/View$OnApplyWindowInsetsListener;'
    07-19 14:18:24.867  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ Link of class 'Landroid/support/v4/widget/DrawerLayoutCompatApi21$InsetsListener;' failed
    07-19 14:18:24.904  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ method Landroid/support/v7/internal/widget/ListViewCompat;.lookForSelectablePosition incorrectly overrides package-private method with same name in Landroid/widget/ListView;
    07-19 14:18:25.319  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ Unable to resolve superclass of Luk/co/ribot/easyadapter/BaseEasyRecyclerAdapter$RecyclerViewHolder; (1642)
    07-19 14:18:25.319  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ Link of class 'Luk/co/ribot/easyadapter/BaseEasyRecyclerAdapter$RecyclerViewHolder;' failed
    07-19 14:18:25.320  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ Unable to resolve superclass of Luk/co/ribot/easyadapter/BaseEasyRecyclerAdapter; (1641)
    07-19 14:18:25.320  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ Link of class 'Luk/co/ribot/easyadapter/BaseEasyRecyclerAdapter;' failed
    07-19 14:18:25.680  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ Unable to resolve superclass of Luk/co/ribot/easyadapter/BaseEasyRecyclerAdapter; (1641)
    07-19 14:18:25.680  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ Link of class 'Luk/co/ribot/easyadapter/BaseEasyRecyclerAdapter;' failed
    07-19 14:18:25.680  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ Unable to resolve superclass of Luk/co/ribot/easyadapter/EasyRecyclerAdapter; (7387)
    07-19 14:18:25.680  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ Link of class 'Luk/co/ribot/easyadapter/EasyRecyclerAdapter;' failed
    07-19 14:18:26.240  18930-18930/com.juliushuijnk.tools.ideagrowr V/App﹕ onCreate App - after AA
    07-19 14:18:26.471  18930-18930/com.juliushuijnk.tools.ideagrowr V/App﹕ end of onCreate App
    07-19 14:18:26.559  18930-18930/com.juliushuijnk.tools.ideagrowr I/dalvikvm﹕ Could not find method android.content.res.TypedArray.getChangingConfigurations, referenced from method android.support.v7.internal.widget.TintTypedArray.getChangingConfigurations
    07-19 14:18:26.559  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ VFY: unable to resolve virtual method 630: Landroid/content/res/TypedArray;.getChangingConfigurations ()I
    07-19 14:18:26.560  18930-18930/com.juliushuijnk.tools.ideagrowr I/dalvikvm﹕ Could not find method android.content.res.TypedArray.getType, referenced from method android.support.v7.internal.widget.TintTypedArray.getType
    07-19 14:18:26.560  18930-18930/com.juliushuijnk.tools.ideagrowr W/dalvikvm﹕ VFY: unable to resolve virtual method 652: Landroid/content/res/TypedArray;.getType (I)I
    07-19 14:18:26.822  18930-18930/com.juliushuijnk.tools.ideagrowr V/MainActivity﹕ called onCreate MainActivity

因此谷歌分析出现了问题，但这并不是减缓应用启动速度的主要因素。主要问题似乎是这样的界限：

Unable to resolve superclass of Landroid/support/v4/app/ActivityCompat21$SharedElementCallbackImpl; (54)

我不知道如何解决这些问题，因为带有这些类型的日志消息的其他StackOverflow帖子假定它是关于.jar库并且它在Eclipse上。

喜欢这里： Android - Unable to resolve superclass 两者都不适用于我的问题（据我所知）。

在Nexus 7（2013）上，应用程序的启动速度也很慢，但日志文件提供了不同的读数：

07-19 14:48:05.631  26840-26840/com.juliushuijnk.tools.ideagrowr V/App﹕ onCreate App - before GoogleAnalytics.getInstance(this)
07-19 14:48:05.640  26840-26840/com.juliushuijnk.tools.ideagrowr I/GAv4﹕ Google Analytics 7.5.71 is starting up. To enable debug logging on a device run:
    adb shell setprop log.tag.GAv4 DEBUG
    adb logcat -s GAv4
07-19 14:48:05.645  26840-26840/com.juliushuijnk.tools.ideagrowr W/GAv4﹕ String xml configuration name not recognized: com.juliushuijnk.tools.ideagrowr.MainActivity
07-19 14:48:05.656  26840-26840/com.juliushuijnk.tools.ideagrowr W/GAv4﹕ String xml configuration name not recognized: com.juliushuijnk.tools.ideagrowr.AllIdeasActivity
07-19 14:48:05.656  26840-26840/com.juliushuijnk.tools.ideagrowr W/GAv4﹕ String xml configuration name not recognized: com.juliushuijnk.tools.ideagrowr.AllNotesActivity
07-19 14:48:05.656  26840-26840/com.juliushuijnk.tools.ideagrowr W/GAv4﹕ String xml configuration name not recognized: com.juliushuijnk.tools.ideagrowr.CreateIdeaActivity
07-19 14:48:05.656  26840-26840/com.juliushuijnk.tools.ideagrowr W/GAv4﹕ String xml configuration name not recognized: com.juliushuijnk.tools.ideagrowr.CreateNoteActivity
07-19 14:48:05.657  26840-26840/com.juliushuijnk.tools.ideagrowr W/GAv4﹕ String xml configuration name not recognized: com.juliushuijnk.tools.ideagrowr.DeleteIdeaActivity
07-19 14:48:05.657  26840-26840/com.juliushuijnk.tools.ideagrowr W/GAv4﹕ String xml configuration name not recognized: com.juliushuijnk.tools.ideagrowr.OverviewActivity
07-19 14:48:05.657  26840-26840/com.juliushuijnk.tools.ideagrowr W/GAv4﹕ String xml configuration name not recognized: com.juliushuijnk.tools.ideagrowr.InfoActivity
07-19 14:48:05.658  26840-26840/com.juliushuijnk.tools.ideagrowr W/GAv4﹕ String xml configuration name not recognized: com.juliushuijnk.tools.ideagrowr.EditQsetActivity
07-19 14:48:05.658  26840-26840/com.juliushuijnk.tools.ideagrowr W/GAv4﹕ String xml configuration name not recognized: com.juliushuijnk.tools.ideagrowr.LikeActivity
07-19 14:48:05.658  26840-26840/com.juliushuijnk.tools.ideagrowr W/GAv4﹕ String xml configuration name not recognized: com.juliushuijnk.tools.ideagrowr.MigrateDatabaseActivity
07-19 14:48:05.658  26840-26840/com.juliushuijnk.tools.ideagrowr W/GAv4﹕ String xml configuration name not recognized: com.juliushuijnk.tools.ideagrowr.SettingsActivity
07-19 14:48:05.659  26840-26840/com.juliushuijnk.tools.ideagrowr W/GAv4﹕ String xml configuration name not recognized: com.juliushuijnk.tools.ideagrowr.UpdateCoreActivity
07-19 14:48:05.659  26840-26840/com.juliushuijnk.tools.ideagrowr W/GAv4﹕ Bool xml configuration name not recognized: ga_reportUncaughtExceptions
07-19 14:48:05.689  26840-26840/com.juliushuijnk.tools.ideagrowr V/App﹕ onCreate App - after GA
07-19 14:48:06.082  26840-26840/com.juliushuijnk.tools.ideagrowr W/art﹕ Before Android 4.1, method int android.support.v7.internal.widget.ListViewCompat.lookForSelectablePosition(int, boolean) would have incorrectly overridden the package-private method in android.widget.ListView
07-19 14:48:07.580  26840-26840/com.juliushuijnk.tools.ideagrowr I/art﹕ Rejecting re-init on previously-failed class java.lang.Class<uk.co.ribot.easyadapter.BaseEasyRecyclerAdapter$RecyclerViewHolder>
07-19 14:48:07.580  26840-26840/com.juliushuijnk.tools.ideagrowr I/art﹕ Rejecting re-init on previously-failed class java.lang.Class<uk.co.ribot.easyadapter.BaseEasyRecyclerAdapter$RecyclerViewHolder>
07-19 14:48:07.581  26840-26840/com.juliushuijnk.tools.ideagrowr I/art﹕ Rejecting re-init on previously-failed class java.lang.Class<uk.co.ribot.easyadapter.BaseEasyRecyclerAdapter>
07-19 14:48:07.581  26840-26840/com.juliushuijnk.tools.ideagrowr I/art﹕ Rejecting re-init on previously-failed class java.lang.Class<uk.co.ribot.easyadapter.BaseEasyRecyclerAdapter>
07-19 14:48:07.583  26840-26840/com.juliushuijnk.tools.ideagrowr I/art﹕ Rejecting re-init on previously-failed class java.lang.Class<uk.co.ribot.easyadapter.BaseEasyRecyclerAdapter>
07-19 14:48:07.583  26840-26840/com.juliushuijnk.tools.ideagrowr I/art﹕ Rejecting re-init on previously-failed class java.lang.Class<uk.co.ribot.easyadapter.EasyRecyclerAdapter>
07-19 14:48:07.583  26840-26840/com.juliushuijnk.tools.ideagrowr I/art﹕ Rejecting re-init on previously-failed class java.lang.Class<uk.co.ribot.easyadapter.EasyRecyclerAdapter>
07-19 14:48:07.592  26840-26840/com.juliushuijnk.tools.ideagrowr V/App﹕ onCreate App - after AA
07-19 14:48:07.606  26840-26840/com.juliushuijnk.tools.ideagrowr V/App﹕ end of onCreate App
07-19 14:48:07.690  26840-26840/com.juliushuijnk.tools.ideagrowr V/MainActivity﹕ called onCreate MainActivity

虽然大部分内容我都不完全理解，但我认为这是最奇怪的一句话：

Before Android 4.1, method int android.support.v7.internal.widget.ListViewCompat.lookForSelectablePosition(int, boolean) would have incorrectly overridden the package-private method in android.widget.ListView

如果有帮助，清单文件的开头：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.juliushuijnk.tools.ideagrowr"
    android:installLocation="auto" >

    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

    <application
        android:name=".App"
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/Theme.myTheme" >
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

进一步背景：我不是专业的软件开发人员，这是一个宠物项目。如何处理这样的问题也很棒。

3 个答案:

答案 0 :(得分：1)

有些需要解决的问题：

首先，请确保已在项目中导入v4和v7支持库...有关更具体的结果,,请参阅以下内容：

从错误开始： Could not find class 'android.app.AppOpsManager', referenced from method com.google.android.gms.common.GooglePlayServicesUtil.zza＆lt; - 检查https://stackoverflow.com/a/29276586/928952

警告： 无法识别字符串xml配置名称：com.juliushuijnk.tools.ideagrowr.*＆lt; - check https://stackoverflow.com/a/23418561/928952

似乎很慢：DexOpt: access denied from Lcom/google/android/gms/common/GooglePlayServicesUtil＆lt; - 检查https://stackoverflow.com/a/30052809/928952

班级Landroid/support/v4/*的链接＆lt; - 检查您是否已导入支持v4 jar

VFY: unable to resolve virtual method 630: Landroid/content/res/TypedArray＆lt; - 添加支持v7 jar

修复上述内容应有助于加快启动时间

答案 1 :(得分：1)

我自己想通了。所以最后，这是由于我如何实现ActiveAndroid库。

除非您使用有助于AA快速查找模型的配置，否则它会让您的应用启动非常慢。

我使用此代码修复它： How to disable scanning for model in Activeandroid

这样的代码（但我有不同的型号名称）：

 Configuration.Builder configurationBuilder = new Configuration.Builder(this);
    configurationBuilder.addModelClasses(Test.class);
    configurationBuilder.addModelClasses(ShoppingList.class);
    configurationBuilder.addModelClasses(ShoppingListItem.class);
    configurationBuilder.addModelClasses(ArticleInfoModel.class);

    ActiveAndroid.initialize(configurationBuilder.create());

现在几乎是即时的。我仍然不确定为什么我得到所有这些奇怪的logcat条目。所有'无法解析超类'的地方可能是某种间接的AA如何在没有配置的情况下运行。自从我添加配置以来，这些行已经消失了。

这些logcat行混淆了我寻找与gradle和支持库有关的答案，但这不是问题的起源。

所以我应该从一开始就实现了这种配置。但是它在AA上写的方式让人觉得“很高兴”。

https://github.com/pardom/ActiveAndroid/wiki/Creating-your-database-mode

所以我了解到，下次当我看到一些我觉得“很高兴”的东西时，我应该在评论中写下我的假设，所以如果我遇到问题，我可以很快看到我可能需要改变的地方。

感谢Danielson试图提供帮助:)。

答案 2 :(得分：0)

Android应用启动缓慢，但在启动缓慢后工作正常 ，这是因为当您的应用程序销毁时，应用程序缓存会清除（如果您的清算）否则或来自settings-＆gt; apps-＆gt; yourapp这两个中的任何一个。当再次启动应用程序时，你会发现这个问题。

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