Develop Reference

Titanium Android activity not maintaining state

I am trying to set up a mobile website that opens my mobile app when a link is clicked in the Android browser. To accomplish this task, I added an intent filter to AndroidManifest.xml, as seen in the code below:
<activity android:name=".MyAppActivity" android:label="#string/app_name" android:theme="#style/Theme.Titanium" android:configChanges="keyboardHidden|orientation" android:alwaysRetainTaskState="true" android:launchMode="singleInstance">
<intent-filter>
<data android:scheme="myapp" android:host="app"/>
<action android:name="android.intent.action.MAIN"/>
<action android:name="android.intent.action.VIEW"/>
<category android:name="android.intent.category.LAUNCHER"/>
<category android:name="android.intent.category.DEFAULT"/>
<category android:name="android.intent.category.BROWSABLE"/>
</intent-filter>
</activity>
The link itself in the browser works great, and I'm easily able to gather parameters when the app is first opened using Ti.Android.currentActivity. The problem comes when the app is already open, but a user clicks the link to open it from within the mobile browser. When my app opens, instead of resuming where I left off before, I simply see the splashscreen. This goes both ways: If I opened the app first from the mobile browser, then tried to resume it later from the Android homescreen or app drawer, I only see the splash screen. Per tips I saw on other places of the internet, I tried adding the code below to AndroidManifest.xml (as seen above):
android:alwaysRetainTaskState="true" android:launchMode="singleInstance"
This however, appears to have no effect on anything, and the same problem persists. What am I missing here? Any help would be greatly appreciated.

The way i have done was like this
<android xmlns:android="http://schemas.android.com/apk/res/android">
<uses-sdk android:minSdkVersion="9" android:targetSdkVersion="18"/>
<manifest android:installLocation="preferExternal"
android:versionCode="1" android:versionName="1.0">
<uses-permission android:name="android.permission.CALL_PHONE"/>
<application android:label="App Name" android:largeHeap="true">
<activity
android:configChanges="keyboardHidden|orientation|screenSize"
android:label="#string/app_name"
android:launchMode="singleTop"
android:name=".mainActivity" android:theme="#style/Theme.Titanium">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
<intent-filter>
<action android:name="android.intent.action.VIEW"/>
<category android:name="android.intent.category.DEFAULT"/>
<category android:name="android.intent.category.BROWSABLE"/>
<data android:scheme="schemaname"/>
</intent-filter>
</activity>
</application>
</manifest>
</android>
and its working fine for me . for Android 4.XX

Android first app, all activities visible in menu

I just created my first Android app, all works fine, but all of the activities are shown on my Android menu. What did I do wrong?
Screenshot: imgur.com/9CmXU
I want to have one icon, directing to MainActivity, not all activities
<!-- language-all: lang-html -->
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.myApps.birthdaymeter"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="15" />
<application
android:icon="#drawable/my_logo"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="#string/title_activity_main" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".BirthdayMeter"
android:label="#string/title_activity_birthday_meter" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".AboutWindow"
android:label="#string/title_activity_about_window" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".ShowResult"
android:label="#string/title_activity_show_result" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
This is my manifest, changing logo didn't help

The <intent-filter> tag is used to describe the type of Intents that each Activity will respond to. The "android.intent.action.MAIN" action says that this Activity is an entrance point for your Application (think the main method that a java program requires). The "android.intent.category.LAUNCHER" category tells the OS to display the Activity in your list of Applications. Adding the DEFAULT category is ok, but effectively the same as omitting the <intent-filter> tag completely (which I find to make for much cleaner and easier to read code). You should only be using the <intent-filter> tag with these two actions and categories on the Activity that starts when a user opens your app. If wanted an Activity within your application to be able to respond to some special intents, you would use the tag to define which it responds to.
Here's a link to the google dev pages to help you learn more about Intent Filters.
http://developer.android.com/guide/components/intents-filters.html
Here's the documentation for the <intent-filter> tag. It's not the easiest to understand though.
http://developer.android.com/guide/topics/manifest/intent-filter-element.html
And here's the docs for the Manifest file and the Intent class. Both of these are good for reference if you're not sure about which tags to use in your Manifest. Good luck!
http://developer.android.com/guide/topics/manifest/manifest-intro.html
http://developer.android.com/reference/android/content/Intent.html

You phrased your question extremely generally, so I am not sure what to answer. It seems like you haven't called nameOfActivity.this.finish() when you launched another activity

If you post your manifest file I can help a little more, but it looks to me like you have not declared your activities correctly.
It should be setup somewhat like this:
<application android:icon="#drawable/icon" android:label="#string/app_name">
<activity android:name="Activity1"></activity>
<activity android:name="Activity2"></activity>
<activity android:name="Activity3"></activity>
</application>
Essentially, create an application declaration, and then include each activity within it.

Application is not displayed in recent apps lists

My application is never shown in the RECENT APPS list whenever I put the following piece of code in my activity's manifest entry
<category android:name="android.intent.category.DEFAULT" />
If I remove above line it works fine. I've also made sure that the following flags are set to false-
android:noHistory="false"
android:excludeFromRecents="false"
But still its never displayed even if I launch app manually.
In case anybody wants to have a look the manifest, its-
<?xml version="1.0" encoding="UTF-8"?>
<uses-sdk android:minSdkVersion="8" />
<application
android:name="com.raj.poc.copypaste.MainApplication"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name" >
<activity
android:name=".CopyPasteActivity"
android:launchMode="singleTop"
android:noHistory="false"
android:excludeFromRecents="false"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
<action android:name="android.intent.action.SEARCH_LONG_PRESS" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
</application>

It may also happen if you set
<activity... android:label=""/>
for your main Activity

This is the only activity in your application, right?
You are using the category tag twice. You have written in your code
<category android:name="android.intent.category.LAUNCHER" />
so you have already selected the category. When you add a new activity then you will write the Default category tag.

Android app installs but doesn't show up in app tray

I'm building a time logging application and i have created the main layout.
I tried to debug my application on my phone Samsung Galaxy S and it starts fine, but if i close it and want to run it again it's not in my app drawer. It shows up in Settings->Programs->Manage and in Recent when holding down the home button.
Here is the manifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.doweb.timelog" android:versionCode="1">
<application android:icon="#drawable/icon" android:label="#string/app_name" android:theme="#android:style/Theme.NoTitleBar">
<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">
</category></action></intent-filter>
</activity>
</application>
<uses-sdk android:minSdkVersion="8">
</uses-sdk>
</manifest>

I think your closing </action> tag in the intent-filter is in the wrong position.
Should look like:
<intent-filter>
<action android:name="android.intent.action.MAIN" > </action>
<category android:name="android.intent.category.LAUNCHER"> </category>
</intent-filter>
That filter is a signal to the system that this activity should be visible in the app-drawer. When it's not correct or present, the activity won't be visible.
Usually it's best to use closed empty elements to prevent this error:
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
You're also missing a . in front of your activitys class. This always relates to your apps package name. It will internally be joined to packagename + classname. Therefore the dot, otherwise it would result in com.doweb.timelogMainActivity, which is obviously not the correct reference. So it should be android:name=".MainActivity".

your activity's name like this android:name=".MainActivity", you can have a try

android multiple activity declaration in manifest

I have a main activity. From it, I am calling 2 other sub activities called FacebookLogin and Twitterlogin. I am using the following code in AndroidManufest.xml:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.examples.Kikin" android:versionCode="1"
android:versionName="1.0">
<!-- THIS IS THE BEGINNING OF SHARING LINKS FROM THE BROWSER -->
<application android:icon="#drawable/kikinlogo"
android:label="#string/app_name" android:debuggable="true">
<activity android:name=".Kikin" android:label="#string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
<intent-filter android:label="#string/app_name">
<action android:name="android.intent.action.SEND" />
<category android:name="android.intent.category.DEFAULT" />
<data android:mimeType="text/plain" />
</intent-filter>
</activity>
<activity android:name=".FacebookLogin" android:label="#string/app_name">
<intent-filter android:label="#string/app_name">
<action android:name="android.intent.action.SEND" />
<category android:name="android.intent.category.DEFAULT" />
<!-- <data android:mimeType="image/png" /> -->
</intent-filter>
</activity>
<activity android:name=".TwitterLogin" android:label="#string/app_name">
<intent-filter>
<action android:name="android.intent.action.VIEW"></action>
<category android:name="android.intent.category.DEFAULT"></category>
<category android:name="android.intent.category.BROWSABLE"></category>
<data android:scheme="yourapp" android:host="twitt"></data>
</intent-filter>
</activity>
</application>
<uses-sdk android:minSdkVersion="8" />
<uses-permission android:name="android.permission.READ_CONTACTS" />
<uses-permission android:name="android.permission.INTERNET" />
Am i doing it right?
Should i nest the FacebookLogin and TwitterLogin activities in the main activity?
The aforesaid 2 classes are in the package com.examples..
* is the same wherever used.

The labels for your FacebookLogin and TwitterLogin appear to be missing an '#' - change them to android:label="#string/app_name"

There's no such thing as a "subactvity". Just because you call one activity from another doesn't mean it's a "subactivity".
You can't nest activity tags in the manifest and you'd probably get a compile error if you tried.
in manifest you can set only one activity in launcher tag okay android does support multiple launcher activity.

The manifest you posted looked fine.
But regarding your comment about the error message "Have you declared this activity in AndroidManifest.xml?", you need to check carefully the package and class name of the Activity you are trying to launch, and make sure that it matches the <activity android:name> you have written in the manifest.
All the info you need should be in the error message.

Don't nest activity declarations, just have them all as elements in your application element:
<manifest ...
<application ...
<activity ...
</activity>
<activity ...
</activity>
<activity ...
</activity>
</application>
</manifest>
The sample you posted here (indenting aside) looks fine.

Maybe you have tested it already but just try declaring your activities with the full path (although you have already declared it in the package tag). So, instead of using
<activity android:name=".TwitterLogin" />
use
<activity android:name="com.examples.Kikin.TwitterLogin" />
Sometimes problems are caused because of that.
I know this is an old thread but Im having the same problem and in my case specifying full package name doesnt help. Have you already found a solution? I`m really interested in knowing how to avoid this error.