我在Android上遇到了一个非常奇怪的UI错误。
从冷启动启动我的应用程序时，会立即呈现启动屏幕，然后按预期加载应用程序。
但是，如果我的应用程序在后台运行，则将其置于前台（通过点击主屏幕图标或通知）恰好有5秒的延迟。
让这种延迟变得奇怪的是，如果我点击冻结的屏幕，控制台事件会立即记录，甚至触摸事件也可以注册（因此应用程序实际上正在运行，尽管是看不见的），但是屏幕仍然冻结，显示为主屏幕或我以前使用的任何先前视图，持续5秒钟，然后该应用程序将按预期方式打开。
一致的5秒使我假设我错过了某个地方的超时，但是我已经从代码中删除了所有超时，并且仍然有5秒的延迟。
我正在运行Lollipop的实际设备上进行测试，并使用内置于expo并已分离的应用程序。我根本没有在iOS或我尝试过的Android模拟器中看到此问题。
我包括了build.gradle，因为我怀疑其中可能会发生一些可疑的事情。
任何想法都将不胜感激！
buildscript {
repositories {
maven { url 'https://maven.fabric.io/public' }
}
dependencies {
classpath 'io.fabric.tools:gradle:1.+'
}
}
apply plugin: 'com.android.application'
apply plugin: 'io.fabric'
def keystorePropertiesFile = rootProject.file("keystore.properties");
def keystoreProperties = new Properties()
keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
repositories {
maven { url 'https://maven.fabric.io/public' }
}
android {
compileSdkVersion 27
buildToolsVersion '27.0.3'
defaultConfig {
applicationId 'com.company.app'
targetSdkVersion 26
versionCode 16
versionName '0.1.6'
ndk {
abiFilters 'armeabi-v7a', 'x86'
}
multiDexEnabled true
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
// Deprecated. Used by net.openid:appauth
manifestPlaceholders = [
'appAuthRedirectScheme': 'host.exp.exponent'
]
}
dexOptions {
keepRuntimeAnnotatedClasses false
// for: `Too many classes in --main-dex-list, main dex capacity exceeded`
jumboMode true // suggested in react-native-twilio-video but may not be required?
javaMaxHeapSize System.getenv("DISABLE_DEX_MAX_HEAP") ? null : "8g" // default from expo
}
signingConfigs {
debug {
storeFile file('../debug.keystore')
}
release {
storeFile file(keystoreProperties['storeFile'])
storePassword keystoreProperties['storePassword']
keyAlias keystoreProperties['keyAlias']
keyPassword keystoreProperties['keyPassword']
}
}
flavorDimensions 'default'
productFlavors {
// Define separate dev and prod product flavors.
dev {
// dev utilizes minSDKVersion = 21 to allow the Android gradle plugin
// to pre-dex each module and produce an APK that can be tested on
// Android Lollipop without time consuming dex merging processes.
minSdkVersion 21
dimension 'default'
}
devRemoteKernel {
minSdkVersion 21
dimension 'default'
}
dev19 {
// For debugging / development on older SDK versions. Increases build
// time so use 'dev' if not running on older SDKs.
minSdkVersion 21
dimension 'default'
}
prod {
// The actual minSdkVersion for the application.
minSdkVersion 21
dimension 'default'
}
}
buildTypes {
debug {
debuggable true
}
release {
minifyEnabled true
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
zipAlignEnabled true
signingConfig signingConfigs.release
}
}
lintOptions {
abortOnError false
}
packagingOptions {
pickFirst "**"
}
}
apply from: 'expo.gradle'
dependencies {
implementation project(':react-native-firebase')
implementation fileTree(include: ['*.jar'], dir: 'libs')
implementation'com.android.support:multidex:1.0.2'
// Our dependencies
// Our dependencies from ExpoView
// DON'T ADD ANYTHING HERE THAT ISN'T IN EXPOVIEW. ONLY COPY THINGS FROM EXPOVIEW TO HERE.
implementation'com.android.support:appcompat-v7:27.1.1'
implementation'com.facebook.android:facebook-android-sdk:4.7.0'
// implementation'com.facebook.android:audience-network-sdk:4.22.1'
implementation('com.facebook.android:audience-network-sdk:4.22.1') {
exclude module: 'play-services-ads'
}
compileOnly 'org.glassfish:javax.annotation:3.1.1'
implementation'com.jakewharton:butterknife:7.0.1'
implementation'de.greenrobot:eventbus:2.4.0'
implementation'com.amplitude:android-sdk:2.9.2'
// Be careful when upgrading! Upgrading might break experience scoping. Check with Jesse. See Analytics.resetAmplitudeDatabaseHelper
implementation'com.squareup.picasso:picasso:2.5.2'
implementation'com.google.android.gms:play-services-gcm:15.0.1'
// implementation'com.google.android.gms:play-services-analytics:12.0.1'
implementation'com.google.android.gms:play-services-maps:15.0.1'
implementation'com.google.android.gms:play-services-auth:15.0.1'
implementation'com.google.android.gms:play-services-location:15.0.1'
implementation'com.google.android.gms:play-services-ads:15.0.1'
annotationProcessor 'com.raizlabs.android:DBFlow-Compiler:2.2.1'
implementation'com.raizlabs.android:DBFlow-Core:2.2.1'
implementation'com.raizlabs.android:DBFlow:2.2.1'
implementation'com.madgag.spongycastle:core:1.53.0.0'
implementation'com.madgag.spongycastle:prov:1.53.0.0'
debugImplementation 'com.squareup.leakcanary:leakcanary-android-no-op:1.4-beta1'
// debugImplementation 'com.squareup.leakcanary:leakcanary-android:1.4-beta1'
releaseImplementation 'com.squareup.leakcanary:leakcanary-android-no-op:1.4-beta1'
implementation 'com.facebook.device.yearclass:yearclass:1.0.1'
implementation 'commons-io:commons-io:1.3.2'
implementation 'me.leolin:ShortcutBadger:1.1.4@aar'
implementation 'com.nostra13.universalimageloader:universal-image-loader:1.9.5'
implementation 'com.theartofdev.edmodo:android-image-cropper:2.4.7'
implementation 'com.yqritc:android-scalablevideoview:1.0.1'
implementation 'commons-codec:commons-codec:1.10'
implementation 'com.segment.analytics.android:analytics:4.3.0'
implementation 'com.google.zxing:core:3.2.1'
implementation 'net.openid:appauth:0.4.1'
implementation('com.airbnb.android:lottie:2.5.5') {
exclude group: 'com.android.support', module: 'appcompat-v7'
}
implementation'io.branch.sdk.android:library:2.17.1'
implementation('io.nlopez.smartlocation:library:3.2.11') {
transitive = false
}
implementation'com.android.support:exifinterface:27.1.1'
implementation'com.squareup.okhttp3:okhttp:3.4.1'
implementation'com.squareup.okhttp3:okhttp-urlconnection:3.4.1'
implementation'com.squareup.okhttp3:okhttp-ws:3.4.1'
implementation'com.squareup.okio:okio:1.9.0'
// Testing
androidTestImplementation'com.android.support.test.espresso:espresso-core:3.0.1'
// We use a modified build of com.android.support.test:runner:1.0.1. Explanation in maven-test/README
androidTestImplementation 'com.android.support.test:runner:1.0.1'
androidTestImplementation 'com.android.support:support-annotations:27.1.1'
androidTestImplementation 'com.google.code.findbugs:jsr305:3.0.0'
androidTestImplementation 'com.android.support.test.uiautomator:uiautomator-v18:2.1.1'
androidTestImplementation 'com.azimolabs.conditionwatcher:conditionwatcher:0.2'
testImplementation 'junit:junit:4.12'
testImplementation 'org.mockito:mockito-core:1.10.19'
testImplementation 'org.robolectric:robolectric:3.8'
implementation('host.exp.exponent:expoview:28.0.0@aar') {
transitive = true
}
implementation project(':react-native-twilio-video-webrtc')
implementation "com.google.android.gms:play-services-base:15.0.1"
implementation "com.google.firebase:firebase-core:16.0.1"
implementation "com.google.firebase:firebase-messaging:17.1.0"
implementation 'me.leolin:ShortcutBadger:1.1.21@aar'
implementation 'com.android.support:design:27.1.1'
}
apply plugin: 'com.google.gms.google-services'