I'm trying to move to a new activity from a selected option from a menu on my main screen. The code for doing this is
public boolean onOptionsItemSelected(MenuItem item) {
switch(item.getItemId()) {
case R.id.action_settings:
Intent settingsIntent = new Intent(this, SettingsActivity.class);
this.startActivity(settingsIntent);
break;
The activity is set up in my manifest file as below
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.test.test_controller">
<uses-permission android:name="android.permission.BLUETOOTH" />
<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"
android:label="#string/app_name"
android:theme="#style/AppTheme.NoActionBar"
android:screenOrientation="landscape"
android:configChanges="keyboardHidden|orientation">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<activity android:name=".SettingsActivity" />
The app crashes as soon as it hits the startActivity line with error
Unable to find explicit activity class {com.test.test_controller/com.test.test_controller.SettingsActivity}; have you declared this activity in your AndroidManifest.xml?
I've been away from Android for quite a while so I can't understand why is it putting the package name in twice? I've checked my settings and the App Id is the same as the package name in the manifest so what am I doing wrong?
Add this </activity> tag after <intent-filter> so system will consider them two activities.
<activity
android:name=".MainActivity"
android:label="#string/app_name"
android:theme="#style/AppTheme.NoActionBar"
android:screenOrientation="landscape"
android:configChanges="keyboardHidden|orientation">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity> // add this tag here
<activity android:name=".SettingsActivity" />
Declare your SettingsActivity in your android manifest:
<activity
android:name=".SettingsActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
</intent-filter>
</activity>
Check Manifest file. The <activity> tag for .MainActivity is not closed.
Your Manifest file should be looks like this.
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.test.test_controller">
<uses-permission android:name="android.permission.BLUETOOTH" />
<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"
android:label="#string/app_name"
android:theme="#style/AppTheme.NoActionBar"
android:screenOrientation="landscape"
android:configChanges="keyboardHidden|orientation">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>// add this
<activity android:name=".SettingsActivity" />
Hope it helps!!
Related
IDK why it's happening, there's an intent filter in there.
I think I'm missing a tiny problem, that another point of view can detect faster/
thanks!
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.caloriecalculator">
<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">
<activity android:name=".Login"></activity>
<activity android:name=".MainActivity" />
<activity
android:name=".Register"
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>
How can edit the manifest so the MainActivity is removed?
I've been following some tutorials to learn to create android apps and I've got stuck in the Activity subject.
When I create a project the Software gives me an deafult activity called MainActivity. I've deleted it so I could name my class as I wish.
However, even after deleting the files the activity still presents on the Manifest. I've tried to play around, deleting some words, but with no success.
This is the current manifest file:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="androidedx.example.activitylifecycle">
<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">
<activity android:name=".Activity1"></activity>
<activity android:name=".Activity2" />
<activity android:name=".MainActivity">-------<<<<<<0!!!!!!!!!!!!!
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
It has this row of content that the android studio warns me about, that I'm poiting with -------<<<<<<0!!!!!!!!!!!!!.
I recall my question: How can edit the manifest so the MainActivity is removed?
Remove the MainActivity Java file and Manifest Declaration and activity1 set as a LAUNCHER Activity
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="androidedx.example.activitylifecycle">
<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">
<activity android:name=".Activity1">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".Activity2" />
</application>
</manifest>
You can create manifest like this if you want to use other activity
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="androidedx.example.activitylifecycle">
<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">
<activity android:name=".Activity1">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".Activity2" />
</application>
</manifest>
This below code make activity as Main and first launched :
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
I have 3 activities in this android studio project. I'm tasked with starting them each separately by moving the intent filter into the activity, however I'm unable to start one of my activities. The same activity doesn't have a /activity> closing tag and I'm not sure why. Any help would be greatly appreciated.
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.sean.lab1">
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity android:name=".StartActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".LoginActivity"
android:label="#string/title_activity_login"
android:theme="#style/AppTheme.NoActionBar" />
<activity android:name=".ListItemsActivity"></activity>
</application>
</manifest>
I am able to move the intent tag to my ListItemsActivity and it will start, but I am not able to move the intent filter tag to my LoginActivity, nor does LoginActivity have a closing </activity> tag.
Here is what you want to do
<?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/AppTheme">
<activity android:name=".StartActivity">
</activity>
<activity
android:name=".LoginActivity"
android:label="#string/title_activity_login"
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=".ListItemsActivity"></activity>
</application>
Try this.
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity android:name=".StartActivity"></activity>
<activity
android:name=".LoginActivity"
android:label="#string/title_activity_login"
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=".ListItemsActivity"></activity>
</application>
I have created an simple app with a few activities. After successful installation I can't open the app. I can just see it in device's apps.
Yes of course a read all the answers telling "You have to set launcher activity". But I set launcher activity.
Here is AndroidManifest.xml
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="cz.jacon.davodani"
android:versionCode="0"
android:versionName="0.1">
<application
android:icon="#drawable/logo"
android:label="#string/app_name"
android:theme="#style/Theme">
</application>
<activity
android:name=".activities.MainActivity"
android:label="#string/app_name"
android:screenOrientation="portrait"
android:theme="#style/Theme.AppCompat.Light.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".activities.SearchActivity"
android:label="#string/search_activity">
</activity>
<activity
android:name=".activities.CustomerActivity"
android:label="#string/customer_activity">
</activity>
<activity
android:name=".activities.CreditActivity"
android:label="#string/credit_activity">
</activity>
<activity
android:name=".activities.PrintReceiptActivity"
android:label="#string/print_receipt_activity">
</activity>
<activity
android:name=".activities.ProductActivity"
android:label="#string/product_activity">
</activity>
Never before happened to me... Can you give me some advice? Thanks a lot
All your activities are required to be defined within the <application> tag.
<application
android:icon="#drawable/logo"
android:label="#string/app_name"
android:theme="#style/Theme">
<!-- Add activites here -->
</application>
Your manifest should look like this:
<?xml version="1.0" encoding="utf-8"?>
<manifest
xmlns:android="http://schemas.android.com/apk/res/android"
package="cz.jacon.davodani"
android:versionCode="0"
android:versionName="0.1">
<application
android:icon="#drawable/logo"
android:label="#string/app_name"
android:theme="#style/Theme">
<activity
android:name=".activities.MainActivity"
android:label="#string/app_name"
android:screenOrientation="portrait"
android:theme="#style/Theme.AppCompat.Light.NoActionBar">
<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="cz.jacon.davodani"
android:versionCode="0"
android:versionName="0.1">
<application
android:icon="#drawable/logo"
android:label="#string/app_name"
android:theme="#style/Theme">
<activity
android:name=".activities.MainActivity"
android:label="#string/app_name"
android:screenOrientation="portrait"
android:theme="#style/Theme.AppCompat.Light.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".activities.SearchActivity"
android:label="#string/search_activity">
</activity>
<activity
android:name=".activities.CustomerActivity"
android:label="#string/customer_activity">
</activity>
<activity
android:name=".activities.CreditActivity"
android:label="#string/credit_activity">
</activity>
<activity
android:name=".activities.PrintReceiptActivity"
android:label="#string/print_receipt_activity">
</activity>
<activity
android:name=".activities.ProductActivity"
android:label="#string/product_activity">
</activity>
</application>
</manifest>
try Replacing your manifest with this..
Change your AndroidManifest.xml structure to -
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="cz.jacon.davodani"
android:versionCode="0"
android:versionName="0.1">
<application
android:icon="#drawable/logo"
android:label="#string/app_name"
android:theme="#style/Theme">
<activity
android:name=".activities.MainActivity"
android:label="#string/app_name"
android:screenOrientation="portrait"
android:theme="#style/Theme.AppCompat.Light.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".activities.SearchActivity"
android:label="#string/search_activity">
</activity>
<activity
android:name=".activities.CustomerActivity"
android:label="#string/customer_activity">
</activity>
<activity
android:name=".activities.CreditActivity"
android:label="#string/credit_activity">
</activity>
<activity
android:name=".activities.PrintReceiptActivity"
android:label="#string/print_receipt_activity">
</activity>
<activity
android:name=".activities.ProductActivity"
android:label="#string/product_activity">
</activity>
</application>
</manifest>
All activities tag must be placed inside <application> tag and it should be placed inside <manifest> tag.
hi when i click on launch my app, the first page comes up, when i want to navigate to my next page the app stop works and give me this error:
Process: com.example.arel0002.pizzeria, PID: 4215
android.content.ActivityNotFoundException: Unable to find explicit activity class {com.example.arel0002.pizzeria/com.example.arel0002.pizzeria.pizza}; have you declared this activity in your AndroidManifest.xml?
Did you read this:
have you declared this activity in your AndroidManifest.xml?
You need to declare your Activity in AndroidManifest.xml
In your Manifest declare like this
<activity android:name=".YourActivityName" android:screenOrientation="portrait" />
Here .YourActivityName is your Activity name
Define Your Activity in Manifest to which you want to go
Like this
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name=".mainpage"
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.example.arel0002.pizzeria.pizza"
>
</activity>
<activity
android:name="com.example.arel0002.pizzeria.erbjudanden"
>
</activity>
<activity
android:name="com.example.arel0002.pizzeria.omoss"
>
</activity>
</application>
*Declare your activity in (AndroidManifest.xml)
<?xml version="1.0" encoding="utf-8"?>
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name=".mainpage"
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>