Develop Reference

How can i show my splash screen first without making in Mainacitivity

I made a splash screen class name Splash.class . I didnt make in mainacitivity so how i can I show this at first screen (Opening screen or first screen)
Manifest
<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.LoginApp">
<activity
android:name=".second"
android:exported="true"></activity>
<activity
android:name=".MainActivity"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>

In order to launch the splash screen first, you have to specify the type of intent by using <intent-filter>. So, adding the below attributes to the activity in your AndroidManifest.xml file will make it launch first:
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
In the end, your manifest will look something like this:
<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.LoginApp">
<activity
android:name=".second"
android:exported="true"></activity>
<activity
android:name=".MainActivity"
android:exported="true" />
<activity
android:name=".Splash"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</application>
</manifest>

change your manifest like this
<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.LoginApp">
<activity
android:name=".second"
android:exported="true"></activity>
<activity
android:name="com.your.package.Splash" //put yout class here
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
First time your android will run activity with category LAUNCHER, so change your activity class in category.LAUNCHER with your class (Splash.java)

How to set different label for different Activity?

I have an app and I want to set different label for different activities in my app. Think I can change the mainfest file.
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
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=".NumbersActivity" />
<activity android:name=".FamilyActivity" />
<activity android:name=".ColorsActivity" />
<activity android:name=".PhrasesActivity"></activity>
</application>
</manifest>

You're missing label here.
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
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=".NumbersActivity"
android:label="Number Activity" />
<activity android:name=".FamilyActivity"
android:label="Family Activity" />
<activity android:name=".ColorsActivity"
android:label="Color Activity" />
<activity android:name=".PhrasesActivity"
android:label="Phrases Activity" />
</application>

Use android:label="string resource" inside <activity> tag
<activity android:name=".NumbersActivity"
android:label="string resource" />
<activity android:name=".FamilyActivity"
android:label="string resource" />
<activity android:name=".ColorsActivity"
android:label="string resource" />

Do something like this, Use label keyword like android:label="My New Activity"
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
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=".NumbersActivity"
android:label="#string/category_numbers"
android:theme="#style/category_numbers" />

android:label="#string/name"
Add this line in every activity manifest

"Error running second Activity: The activity must be exported or contain an intent-filter"

I can't seem to launch my application. It gives me an error like this: Error running second Activity: The activity must be exported or contain an intent-filter. Is there anything wrong with my manifest?
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.bill.myapplication1.MainActivity"
android:label="#string/app_name"
android:exported="true">>
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.bill.myapplication1.SecondActivity"
android:label="#string/title_activity_second" >
</activity>
</application>

look there ,"android:exported="true">>", there is two ">"

change this in your manifest file
<activity
android:name="com.bill.myapplication1.MainActivity"
android:label="#string/app_name"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>

<activity
android:name="com.bill.myapplication1.MainActivity"
android:label="#string/app_name"
android:exported="true">>
You have double > near exported = "true"

<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.bill.myapplication1.MainActivity"
android:label="#string/app_name"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.bill.myapplication1.SecondActivity"
android:label="#string/title_activity_second" >
</activity>
</application>

show 2 apps when debugging in android

When I debug and install app in device, it's show 2 apps install in device (one open with Splashscreen & another open without Splashscreen ) . Guide me, what I'm doing wrong.
here is my manifest file.
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.soft.prmk.alle"
android:versionCode="1"
android:versionName="1.0" >
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<application
android:hardwareAccelerated="true"
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity
android:name=".MainActivity"
android:label="#string/app_name"
android:theme="#style/AppTheme.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".SplashScreen"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>

You have two Launcher Activities: MainActivity and SplashScreen. Remove one of those. Try this:
<?xml version="1.0" encoding="utf-8"?>
android:versionCode="1"
android:versionName="1.0" >
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<application
android:hardwareAccelerated="true"
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity
android:name=".SplashScreen"
android:label="#string/app_name"
android:theme="#style/AppTheme.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".MainActivity"
</activity>
</application>

You have two LAUNCHER thats the issue
<category android:name="android.intent.category.LAUNCHER" />
Make it DEFAULT in MainActivity.
<activity
android:name=".MainActivity"
android:label="#string/app_name"
android:theme="#style/AppTheme.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>

You have 2 launcher activities, remove intent-filter from one. I think SplashScreen should be launcher activity so remove from MainActivity
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>

What does Error:(13) Error: The <receiver> element must be a direct child of the <application> element [WrongManifestParent] mean and how do i fix it?

Im having problems when trying to compile my app, im trying to launch it from the dialler and the manifest file gets this error. Here is my manifest file
<uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS"/>
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="#string/app_name" >
<receiver
android:name=".receiver.DialReceiver"
android:exported="true"
android:process=":background"
>
<intent-filter>
<action android:name="android.intent.action.NEW_OUTGOING_CALL" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</receiver>
</activity>
</application>

Move
<receiver
android:name=".receiver.DialReceiver"
android:exported="true"
android:process=":background"
>
<intent-filter>
<action android:name="android.intent.action.NEW_OUTGOING_CALL" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</receiver>
Outside <activity> tag

Try to modify your manifest like this:
<uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS"/>
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="#string/app_name" >
</activity>
<receiver
android:name=".receiver.DialReceiver"
android:exported="true"
android:process=":background">
<intent-filter>
<action android:name="android.intent.action.NEW_OUTGOING_CALL" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</receiver>
</application>