【发布时间】：2021-09-11 19:09:04
【问题描述】：
我的android应用程序有一个严重的问题，就是当activity多次（大约10次）恢复时，滚动时activity会变得滞后。如果我开始一个新的活动，新的活动可以顺利进行，但如果我让它恢复大约 10 次，它也会像第一个一样滞后。我尝试过使用简单的 UI，只有一个 ScrollView 和几个 TextViews。下面是我的类实现：
public class TestLagActivity extends AppCompatActivity {
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_test);
}
@Override
protected void onResume() {
super.onResume();
}
@Override
public void onBackPressed() { //make activity resume when press back button
for(int i=0;i<11;i++)
onResume();
}
}
有人遇到过这样的情况吗？您能否建议我一些可能导致此类问题的原因？如果您需要更多代码，请告诉我，我会提供给您。
提前谢谢你！
更新： 当我按下返回按钮使活动恢复时（参见上面的 onBackPressed() 方法），活动滞后，logcat 显示：
2020-03-13 21:53:42.731 22255-22314/com.mypackagename.dev V/FA: Inactivity, disconnecting from the service
2020-03-13 21:53:44.279 22255-22255/com.mypackagename.dev D/KeyEvent: obtain, mHwFlags=1768911460
2020-03-13 21:53:44.286 22255-22255/com.mypackagename.dev D/KeyEvent: obtain, mHwFlags=1768911460
2020-03-13 21:53:44.290 22255-22314/com.mypackagename.dev V/FA: Activity resumed, time: 16148835
2020-03-13 21:53:44.307 22255-22314/com.mypackagename.dev V/FA: Connecting to remote service
2020-03-13 21:53:44.311 22255-22314/com.mypackagename.dev V/FA: Activity resumed, time: 16148846
2020-03-13 21:53:44.328 22255-22314/com.mypackagename.dev V/FA: Connection attempt already in progress
2020-03-13 21:53:44.328 22255-22314/com.mypackagename.dev V/FA: Activity resumed, time: 16148855
2020-03-13 21:53:44.345 22255-22314/com.mypackagename.dev V/FA: Connection attempt already in progress
2020-03-13 21:53:44.346 22255-22314/com.mypackagename.dev V/FA: Activity resumed, time: 16148867
2020-03-13 21:53:44.362 22255-22314/com.mypackagename.dev V/FA: Connection attempt already in progress
2020-03-13 21:53:44.363 22255-22314/com.mypackagename.dev V/FA: Activity resumed, time: 16148876
2020-03-13 21:53:44.379 22255-22314/com.mypackagename.dev V/FA: Connection attempt already in progress
2020-03-13 21:53:44.380 22255-22314/com.mypackagename.dev V/FA: Activity resumed, time: 16148887
2020-03-13 21:53:44.397 22255-22314/com.mypackagename.dev V/FA: Connection attempt already in progress
2020-03-13 21:53:44.397 22255-22314/com.mypackagename.dev V/FA: Activity resumed, time: 16148896
2020-03-13 21:53:44.413 22255-22314/com.mypackagename.dev V/FA: Connection attempt already in progress
2020-03-13 21:53:44.414 22255-22314/com.mypackagename.dev V/FA: Activity resumed, time: 16148907
2020-03-13 21:53:44.427 22255-22314/com.mypackagename.dev V/FA: Connection attempt already in progress
2020-03-13 21:53:44.428 22255-22314/com.mypackagename.dev V/FA: Activity resumed, time: 16148921
2020-03-13 21:53:44.432 22255-22290/com.mypackagename.dev I/zygote64: Starting profile saver IsSaveProfileNow end.
2020-03-13 21:53:44.440 22255-22314/com.mypackagename.dev V/FA: Connection attempt already in progress
2020-03-13 21:53:44.441 22255-22314/com.mypackagename.dev V/FA: Activity resumed, time: 16148930
2020-03-13 21:53:44.453 22255-22314/com.mypackagename.dev V/FA: Connection attempt already in progress
2020-03-13 21:53:44.454 22255-22314/com.mypackagename.dev V/FA: Activity resumed, time: 16148942
2020-03-13 21:53:44.466 22255-22314/com.mypackagename.dev V/FA: Connection attempt already in progress
2020-03-13 21:53:44.467 22255-22314/com.mypackagename.dev D/FA: Connected to remote service
2020-03-13 21:53:44.470 22255-22314/com.mypackagename.dev V/FA: Processing queued up service tasks: 11
2020-03-13 21:53:44.549 22255-22262/com.mypackagename.dev I/zygote64: Do partial code cache collection, code=251KB, data=151KB
2020-03-13 21:53:44.549 22255-22262/com.mypackagename.dev I/zygote64: After code cache collection, code=251KB, data=151KB
2020-03-13 21:53:44.549 22255-22262/com.mypackagename.dev I/zygote64: Increasing code cache capacity to 1024KB
更新 2： 活动的 xml 文件：
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:layout_marginTop="10dp"
android:text="@string/verify" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:layout_marginTop="10dp"
android:text="@string/verify" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:layout_marginTop="10dp"
android:text="@string/verify" />
<!--Other TextViews-->
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:layout_marginTop="10dp"
android:text="@string/verify" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:layout_marginTop="10dp"
android:text="@string/verify" />
</LinearLayout>
更新 3： 项目中使用的依赖项。
implementation 'io.supercharge:shimmerlayout:2.1.0'
implementation 'com.facebook.shimmer:shimmer:0.5.0'
implementation "com.rizlee.view:rangeseekbar:1.0.0"
implementation 'com.github.bumptech.glide:glide:4.8.0'
annotationProcessor 'com.github.bumptech.glide:compiler:4.8.0'
implementation 'com.mikhaellopez:circularimageview:3.0.2'
implementation 'com.makeramen:roundedimageview:2.3.0'
implementation 'com.github.florent37:singledateandtimepicker:1.2.2'
implementation 'me.relex:circleindicator:1.2.2@aar'
implementation 'com.wang.avi:library:2.1.3'
implementation 'androidx.appcompat:appcompat:1.1.0'
implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
implementation 'com.google.android.material:material:1.1.0'
implementation 'com.facebook.android:facebook-android-sdk:5.11.0'
implementation 'com.facebook.android:account-kit-sdk:4.39.0'
implementation 'com.facebook.android:facebook-share:5.11.0'
implementation 'com.google.android.gms:play-services-base:17.1.0'
implementation 'com.google.android.gms:play-services-analytics:17.0.0'
implementation 'com.google.android.gms:play-services-auth:17.0.0'
implementation 'com.google.android.gms:play-services-maps:17.0.0'
implementation 'com.google.android.gms:play-services-vision:19.0.0'
implementation 'com.google.android.libraries.places:places:2.2.0'
implementation 'com.google.android.gms:play-services-places:17.0.0'
implementation 'androidx.legacy:legacy-support-v4:1.0.0'
implementation 'com.google.maps.android:android-maps-utils:0.5'
implementation 'com.google.android.gms:play-services-plus:17.0.0'
implementation 'androidx.recyclerview:recyclerview:1.1.0'
implementation 'androidx.cardview:cardview:1.0.0'
implementation 'com.theartofdev.edmodo:android-image-cropper:2.6.0'
implementation 'com.google.firebase:firebase-analytics:17.2.3'
implementation 'com.google.firebase:firebase-auth:19.3.0'
implementation 'com.google.firebase:firebase-firestore:21.4.1'
implementation 'com.google.firebase:firebase-messaging:20.1.2'
implementation 'com.appsflyer:af-android-sdk:4.9.0'
implementation 'com.android.installreferrer:installreferrer:1.1.2'
implementation(name:'HERE-sdk-lite', ext:'aar')
implementation 'io.branch.sdk.android:library:4.4.0'
【问题讨论】：
-
请将您的活动源代码添加到您的评论中。
-
@感谢您的关注，正如我上面提到的，活动是从 AppCompatActivity 扩展而来的，我只是重写了 onCreate() 方法。在这个方法中，我只是setContentView(R.layout.activity_ui)，我没有在activity内部声明任何实例字段
-
你为什么要调用 onResume 10（实际上是 11）次？
-
@EpicPandaForce 因为在我的应用程序中，活动在恢复大约 5 到 10 次时变得滞后。因此，我编写了这个函数来执行这种情况以便更快地测试。
-
但是您的
onResume似乎是空的，所以这很奇怪？