[android] How to add manifest permission to an application?

I am trying to access HTTP link using HttpURLConnection in Android to download a file, but I am getting this warning in LogCat:

WARN/System.err(223): java.net.SocketException: Permission denied (maybe missing INTERNET permission)

I have added android.Manifest.permission to my application but it's still giving the same exception.

Permission name is CASE-SENSITIVE

In case somebody will struggle with same issue, it is case sensitive statement, so wrong case means your application won't get the permission.

WRONG

<uses-permission android:name="ANDROID.PERMISSION.INTERNET" />

CORRECT

<uses-permission android:name="android.permission.INTERNET" />

This issue may happen ie. on autocomplete in IDE

If you are using the Eclipse ADT plugin for your development, open AndroidManifest.xml in the Android Manifest Editor (should be the default action for opening AndroidManifest.xml from the project files list).

Afterwards, select the Permissions tab along the bottom of the editor (Manifest - Application - Permissions - Instrumentation - AndroidManifest.xml), then click Add... a Uses Permission and select the desired permission from the dropdown on the right, or just copy-paste in the necessary one (such as the android.permission.INTERNET permission you required).

Add the below line in your application tag:

 android:usesCleartextTraffic="true"

To be look like below code :

<application
    ....
    android:usesCleartextTraffic="true"
    ....>

And add this above of application tag

<uses-permission android:name="android.permission.INTERNET" />

to be like that :

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.themarona.app">
    <uses-permission android:name="android.permission.INTERNET" />

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:usesCleartextTraffic="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>

    </application>
</manifest>

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.photoeffect"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk
    android:minSdkVersion="8"
    android:targetSdkVersion="18" />

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_LOCATION_EXTRA_COMMANDS" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="com.example.towntour.permission.MAPS_RECEIVE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.CALL_PHONE" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />

<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@android:style/Theme.Black.NoTitleBar" >
    <activity
        android:name="com.photoeffect.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>
</application>

</manifest>

I am late but i want to complete the answer.

An permission is added in manifest.xml like

<uses-permission android:name="android.permission.INTERNET"/>

This is enough for standard permissions where no permission is prompted to the user. However, it is not enough to add permission only to manifest if it is a dangerous permission. See android doc. Like Camera, Storage permissions.

<uses-permission android:name="android.permission.CAMERA"/>

You will need to ask permission from user. I use RxPermission library that is widely used library for asking permission. Because it is long code which we have to write to ask permission.

RxPermissions rxPermissions = new RxPermissions(this); // where this is an Activity instance // Must be done during an initialization phase like onCreate
rxPermissions
    .request(Manifest.permission.CAMERA)
    .subscribe(granted -> {
        if (granted) { // Always true pre-M
           // I can control the camera now
        } else {
           // Oups permission denied
        }
    });

Add this library to your app

allprojects {
    repositories {
        ...
        maven { url 'https://jitpack.io' }
    }
}

dependencies {
    implementation 'com.github.tbruyelle:rxpermissions:0.10.1'
    implementation 'com.jakewharton.rxbinding2:rxbinding:2.1.1'
}

Copy the following line to your application manifest file and paste before the <application> tag.

<uses-permission android:name="android.permission.INTERNET"/>

Placing the permission below the <application/> tag will work, but will give you warning. So take care to place it before the <application/> tag declaration.

When using eclipse, Follow these steps

1) Double click on the manifest to show it on the editor
2) Click on the permissions tab below the manifest editor
3) Click on Add button
4) on the dialog that appears Click uses permission. (Ussually the last item on the list)
5) Notice the view that appears on the rigth side Select "android.permission.INTERNET"
6) Then a series of Ok and finally save.

Hope this helps

You have to use both Network and Access Network State in manifest file while you are trying load or access to the internet through android emulator.

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

If you are giving only .INTERNET permission, it won't access to the internet.

That may be also interesting in context of adding INTERNET permission to your application:

Google has also given each app Internet access, effectively removing the Internet access permission. Oh, sure, Android developers still have to declare they want Internet access when putting together the app. But users can no longer see the Internet access permission when installing an app and current apps that don’t have Internet access can now gain Internet access with an automatic update without prompting you.

Source: http://www.howtogeek.com/190863/androids-app-permissions-were-just-simplified-now-theyre-much-less-secure/

Bottom line is that you still have to add INTERNET permission in manifest file but application will be updated on user's devices without asking them for new permission.