Develop Reference

My Android mobile app Installation failed on Android version4.4.4

My Android mobile app is successfully installing only on android version 6.0.1 but I want to install it on android version 4.4.4. What changes I have to do?
Here in my Manifest:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.pervaizahmed.ilmileaveapplication">
<uses-sdk android:maxSdkVersion="27" />
<uses-permission android:name="android.permission.SEND_SMS" />
<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/Theme.AppCompat">
<activity android:name=".welcomeScreen">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".MainActivity" />
</application>
</manifest>
Here is Gradle Code:
apply plugin: 'com.android.application'
android {
compileSdkVersion 26
defaultConfig {
applicationId "com.example.pervaizahmed.ilmileaveapplication"
minSdkVersion 14
targetSdkVersion 26
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
productFlavors {
}
buildToolsVersion '26.0.2'
}
dependencies {
implementation fileTree(include: ['*.jar'], dir: 'libs')
implementation 'com.android.support.constraint:constraint-layout:1.0.2'
implementation 'com.android.support:appcompat-v7:26.0.2'
implementation 'com.android.support:design:26.0.2'
implementation 'com.android.support:support-v4:26.0.2'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:0.5'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
}

Problem solved just by removing this line.
androidTestImplementation 'com.android.support.

My app is working fine in the emulator, but not in the real device

I am using Android studio 2.3 and Nexus 6 API 25 as emulator.I have created a app where I use to log in through firebase and display some images URL.Everything works fine when I run the app in emulator.
But when run the app in a real android device, the app installs and I could signup with a new user & password and checked json databse in firebase for new entry.
Till the above app works fine in real device.but when I went for login , app stops with message"Unfortunately, the app has stopped".
I followed below steps in order to troubleshoot but error still remains
1.Disabled Instant run.
2.added android:largeHeap="true" in manifest.xml to prevent from out of memory issue
3.Build .apk file in android studio and transfer to real device.
I am attaching here my gradle files, manifest files.
******build.gradle**:-****
apply plugin: 'com.android.application'
android {
compileSdkVersion 25
buildToolsVersion "25.0.3"
defaultConfig {
applicationId "com.example.win81.eathut"
minSdkVersion 21
targetSdkVersion 25
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
//Add Library
compile 'com.cepheuen.elegant-number-button:lib:1.0.2'
compile 'com.android.support:design:25.3.1'
compile 'com.android.support:appcompat-v7:25.3.1'
compile 'com.android.support.constraint:constraint-layout:1.0.2'
compile 'com.google.firebase:firebase-core:10.2.0'
compile 'com.google.firebase:firebase-database:10.2.0'
compile 'info.hoang8f:fbutton:1.0.5'
compile 'com.rengwuxian.materialedittext:library:2.1.4'
compile 'com.android.support:design:25.3.1'
compile 'com.squareup.picasso:picasso:2.5.2'
compile 'com.android.support:cardview-v7:25.3.1'
compile 'com.android.support:recyclerview-v7:25.3.1'
compile 'com.firebaseui:firebase-ui-database:1.2.0'
testCompile 'junit:junit:4.12'
}
apply plugin: 'com.google.gms.google-services'
****AndroidManifest.xml****
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.win81.eathut">
<uses-permission android:name="android.permission.INTERNET" />
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:largeHeap="true"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".SignIn" />
<activity android:name=".SignUp" />
<activity
android:name=".Home"
android:label="#string/title_activity_home"
android:theme="#style/AppTheme" />
<activity android:name=".List" />
<activity android:name=".Detail"></activity>
</application>
</manifest>
My real device spec is
Model-Samsung SM-G530H
Android version:-5.0.2,API 21
Please help me.
Note:I can easily run any react native apps in this device.

No change in manifest and gradle but now on uploading apk showing 0 supported device

Earlier all the version were having no problem after updating android studio and uploading the app on play store it is showing supported device 0. The manifest and gradle are unchanged except the version name and version code.
<?xml version="1.0" encoding="utf-8"?>
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/MyMaterialTheme">
<service
android:name=".services.MyAccessibilityService"
android:permission="android.permission.BIND_ACCESSIBILITY_SERVICE">    
<intent-filter>
<action android:name="android.accessibilityservice.AccessibilityService" />
</intent-filter>
</service>
<activity android:name=".About" />
<activity android:name=".AccessibilityPermission" />
<!-- Include the AdActivity configChanges and theme. -->
<activity
android:name="com.google.android.gms.ads.AdActivity"
android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize"
android:theme="#android:style/Theme.Translucent" />
<activity android:name=".SettingsActivity" />
<activity
android:name=".MainNavigationActivity"
android:label="#string/app_name"
android:theme="#style/MyMaterialTheme">
</activity>
<activity android:name=".SplashActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
and my gradle file
apply plugin: 'com.android.application'
android {
compileSdkVersion 24
buildToolsVersion "25.0.0"
defaultConfig {
applicationId "in.zuts.notificationlogger"
minSdkVersion 18
targetSdkVersion 24
versionCode 4
versionName "0.4"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
vectorDrawables.useSupportLibrary = true
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
compile 'com.android.support:appcompat-v7:24.2.1'
compile 'com.android.support.constraint:constraint-layout:1.0.1'
compile 'com.android.support:support-v4:24.2.1'
compile 'com.android.support:design:24.2.1'
compile 'com.google.android.gms:play-services-ads:10.0.1'
compile 'com.google.firebase:firebase-ads:10.0.1'
compile 'com.android.support:support-vector-drawable:24.2.1'
testCompile 'junit:junit:4.12'
}
apply plugin: 'com.google.gms.google-services'

I uploaded the apk anyway with 0 supported device. After few minutes the real figures were shown in supported device. Anyone with similar problem can rollout their apk in beta and can check if their problem is resolved.

Android Studio Multiple Dex file dependencies defined error

I have been trying for a week and have never tried solutions in sites.
Error Current.
Error:Execution failed for task ':app:transformClassesWithDexForDebug'.
> com.android.build.api.transform.TransformException:
com.android.ide.common.process.ProcessException:
java.util.concurrent.ExecutionException: com.android.dex.DexException:
Multiple dex files define
Lcom/google/android/gms/internal/zzaac$zza;
Gradle codes
apply plugin: 'com.android.application'
android {
compileSdkVersion 25
buildToolsVersion "25.0.2"
defaultConfig {
//multiDexEnabled true
}
defaultConfig {
applicationId "com.oyunlar.dortislem"
minSdkVersion 15
targetSdkVersion 25
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
//multiDexEnabled = true
}
buildTypes {
release {
//multiDexKeepProguard 'multidex-config.pro'
minifyEnabled true
proguardFiles getDefaultProguardFile('proguard-android.txt'),
'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
//compile 'com.android.support:multidex:1.0.1'
compile 'com.android.support:appcompat-v7:25.3.0'
compile 'com.google.firebase:firebase-database:10.2.0'
//compile 'com.google.firebase:firebase-core:10.0.1'
//compile 'com.google.firebase:firebase-messaging:10.0.1'
compile 'com.google.firebase:firebase-auth:10.0.1'
//compile 'com.google.firebase:firebase-crash:10.0.1'
//compile 'com.google.firebase:firebase-ads:10.0.1'
testCompile 'junit:junit:4.12'
//compile 'com.google.android.gms:play-services:10.2.1'
//compile 'com.google.android.gms:play-services-maps:10.2.1'
}
apply plugin: 'com.google.gms.google-services'
AndroidManifest codes:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.oyunlar.dortislem">
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme1"
>
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".DortislemOyunu"></activity>
<activity android:name=".DortislemOyunuSonuc"></activity>
<activity android:name=".TopList"></activity>
<activity android:name=".NtGirisGiris"></activity>
<activity android:name=".Admin"></activity>
</application>
</manifest>
Thank you
Thanks a lot. But now the bottom error is coming out.
enter image description here

You are including all Play services in your project. Only add those you want. For example, if you are using only maps, then change
compile 'com.google.android.gms:play-services:8.1.0'
to
compile 'com.google.android.gms:play-services-maps:8.1.0'
From the doc:
In versions of Google Play services prior to 6.5, you had to compile
the entire package of APIs into your app. In some cases, doing so made
it more difficult to keep the number of methods in your app (including
framework APIs, library methods, and your own code) under the 65,536
limit.
From version 6.5, you can instead selectively compile Google Play
service APIs into your app. For example, to include only the Google
Fit and Android Wear APIs, replace the following line in your
build.gradle file:
compile 'com.google.android.gms:play-services:8.3.0'
with these lines:
compile 'com.google.android.gms:play-services-fitness:8.3.0'
compile 'com.google.android.gms:play-services-wearable:8.3.0'
Or you can try like this in app build.gradle:
defaultConfig {
...
minSdkVersion 15
targetSdkVersion 25
...
// Enabling multidex support.
multiDexEnabled true
}
dependencies {
compile 'com.android.support:multidex:1.0.1'
}
In your manifest :
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.android.multidex.myapplication">
<application
...
android:name="android.support.multidex.MultiDexApplication">

Android Studio AdMob error cannot resolve symbol #integer/google_play_services_version"/>

I am trying to get AdMob into my app but this error comes up and I am not sure how to fix it.
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<meta-data android:name="com.google.android.gms.version"
android:value="#integer/google_play_services_version"/>
<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>
<activity android:name="com.google.android.gms.ads.AdActivity"
android.configChanges="keyboard|keyboardHidden|
orientation|screenLayout|uiMode|screenSize|smallestScreenSize"/>"
<activity android:name="com.google.android.gms.ads.AdActivity"
android:configChanges="keyboard|keyboardHidden|orientation|screenLayout
|uiMode|screenSize|smallestScreenSize" />”
<activity android:name=".SettingsPage"
android:label="Settings"
android:theme="#style/AppTheme"/>
</application>
Also, the line
<activity android:name="com.google.android.gms.ads.AdActivity"
has an error saying cannot resolve symbol AdActivity. I'm not sure what's causing these issues, and would appreciate some help.
build.gradle
apply plugin: 'com.android.application'
android {
compileSdkVersion 22
buildToolsVersion "22.0.1"
defaultConfig {
applicationId "com.example.name.application"
minSdkVersion 16
targetSdkVersion 22
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), '
proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:22.2.0'
}

You need to add a line in your build.gradle to compile Google Play Services, take a look at the documentation here
So your dependencies should be something like this if you're using the latest version of Google Play Services:
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:22.2.0'
compile 'com.google.android.gms:play-services:7.5.0'
}