All Activities and layouts got corrupted in Android Studio

Question

I am working on a projects since 3 months. Today most of my activities and xml files got corrupted. I have tried deleting workspace.iml file but it remains same.Local History in VCS is also empty. Is there any way to recover my code or solve this issue. Note These files are same as previous if I open then in Notepad app/scrc/main/activity.java, but showing different in Android studio

Here what my code looks like now

<component name="libraryTable">  <library name="Gradle: com.google.firebase:firebase-measurement-connector-impl-17.0.3"> <CLASSES>   <root url="file://$USER_HOME$/.gradle/caches/transforms-1/files-1.1/firebase-measurement-connector-impl-17.0.3.aar/fb2536827bf92d82ab72080a9863eb78/res" />   <root url="jar://$USER_HOME$/.gradle/caches/transforms-1/files-1.1/firebase-measurement-connector-impl-17.0.3.aar/fb2536827bf92d82ab72080a9863eb78/jars/classes.jar!/" /> </CLASSES> <JAVADOC /> <SOURCES /> 

gradle file:

apply plugin: 'com.android.application'apply plugin: 'com.google.gms.google-services'android { compileSdkVersion 28 defaultConfig {     applicationId "com.apkfeast.class11walkthrogh"     minSdkVersion 16     targetSdkVersion 28     versionCode 1     versionName "1.0"     testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"     multiDexEnabled true } buildTypes {     release {         minifyEnabled false         proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'        }  }}dependencies { implementation fileTree(dir: 'libs', include: ['*.jar']) implementation 'com.android.support:appcompat-v7:28.0.0' implementation 'com.android.support.constraint:constraint-layout:1.1.3' testImplementation 'junit:junit:4.12' androidTestImplementation 'com.android.support.test:runner:1.0.2' androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2' implementation 'com.android.support:design:28.0.0' implementation 'com.github.chrisbanes:PhotoView:2.1.3' implementation 'com.android.support:recyclerview-v7:28.0.0' implementation 'com.google.firebase:firebase-database:16.0.5' implementation 'com.google.firebase:firebase-core:16.0.5' implementation 'com.squareup.picasso:picasso:2.71828' implementation 'com.github.bumptech.glide:glide:4.8.0' annotationProcessor 'com.github.bumptech.glide:compiler:4.8.0' implementation 'com.firebaseui:firebase-ui-database:4.2.1' implementation 'com.github.bumptech.glide:compiler:4.8.0' implementation 'com.github.bumptech.glide:annotations:4.8.0' implementation 'com.firebase:firebase-client-android:2.5.2' implementation 'com.google.firebase:firebase-storage:16.0.5' implementation 'com.google.firebase:firebase-auth:16.0.5' implementation 'com.google.firebase:firebase-database:16.0.1' implementation 'com.google.android.gms:play-services-ads:17.1.1' implementation 'com.android.support:multidex:1.0.3'}apply plugin: 'com.google.gms.google-services' 

Manifest

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.apkfeast.class11walkthrogh" android:screenOrientation="portrait" >  <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" /> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> <uses-permission android:name="android.permission.INTERNET" /> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />  <application     android:allowBackup="true"     android:icon="@mipmap/ic_launcher"     android:label="@string/app_name"     android:roundIcon="@mipmap/ic_launcher_round"     android:supportsRtl="true"     android:theme="@style/AppTheme"     android:fullBackupContent="true">     <activity android:name=".Splash">         <intent-filter>             <action android:name="android.intent.action.MAIN" />             <action android:name="android.intent.action.VIEW" />              <category android:name="android.intent.category.LAUNCHER" />         </intent-filter>     </activity>     <meta-data         android:name="com.google.android.gms.ads.APPLICATION_ID"         android:value="ca-app-pub-3940256099942544~3347511713"/>      <activity android:name=".Hyderabad" />     <activity android:name=".Mirpurkhas" />     <activity android:name=".SelectBoard" />     <activity android:name=".Quiz" />     <activity android:name=".Notes" />     <activity android:name=".fedral" />     <activity android:name=".sukkur" />     <activity android:name=".larkana" />     <activity android:name=".aghakhan" />     <activity android:name=".sarghoda" />     <activity android:name=".Rawalpindi" />     <activity android:name=".Faisalabad" />     <activity android:name=".Multan" />     <activity android:name=".Gujranwala" />     <activity android:name=".lahore" />     <activity android:name=".karachi" />     <activity android:name=".sahiwal" />     <activity android:name=".dgkhan" />     <activity android:name=".peshawar" />     <activity android:name=".bahawalpur" />     <activity android:name=".balochistan" />     <activity android:name=".hydchem" />     <activity android:name=".hydphy" />     <activity android:name=".hydbio" />     <activity android:name=".hydeng" />     <activity android:name=".hydisl" />     <activity android:name=".hydurd" />     <activity android:name=".hydmat" />     <activity android:name=".hydpak" />     <activity android:name=".hydviewdown" />     <activity android:name=".mpkVD" />     <activity android:name=".fedVD" />     <activity android:name=".sukVD" />     <activity android:name=".larVD" />     <activity android:name=".sarVD" />     <activity android:name=".rawVD" />     <activity android:name=".faiVD" />     <activity android:name=".mulVD" />     <activity android:name=".gujVD" />     <activity android:name=".lahVD" />     <activity android:name=".khiVD" />     <activity android:name=".sahVD" />     <activity android:name=".dgkVD" />     <activity android:name=".pesVD" />     <activity android:name=".bahVD" />     <activity android:name=".balVD" />     <activity android:name=".result" />     <activity android:name=".bioquiz" />     <activity android:name=".chemquiz" />     <activity android:name=".phyquiz" />     <activity android:name=".full" /> </application>  </manifest> 

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Solved

I have fixed it by deleting all the files in C:\Users\cc.AndroidStudio3.2\system\caches.

Answer 1

I also had the same problem this morning. I thought this was due to migrating to AndroidX but It was wrong. It may occur due to improper indexing and building for e.g. the indexing is force stopped. or due to some IDE issues.

The isuue resolved by deleting gradle and .idea folder in project and clearing cache of Android Studio IDE by D:\Users\ABCD.AndroidStudio3.2\system\caches. And issue was resolved.

Note:- Please take Project Backups Daily.