Hi all, I am sorry that i may ask known questions to you all. But i couldnt figure out the exact understanding of implicit intents.
When i was going through the tutorial i read about it. here are some important points to remember: 1 - Implicit Intents do not specify a target component 2 - Components willing to receive implicit intents have to declare their ability to handle a specific intent by declaring intent filters 3 - A component can declare any number of Intent Filters 4 - There can be more than one component that declares the same Intent Filters and hence can respond to the same implicit intent. In that case the user is presented both the component options and he can choose which one he wants to continue with 5- You can set priorities for the intent filters to ensure the order of responses. I read this about Implicit Intents. I couldnt get visualisation of 4th point. So wanted to try it out by writing some examples. I tested this like below. Wrote two apps. I had written two activities in one app, CallingActivity & anotherActivity. <manifest xmlns:android="http://schemas.android.com/apk/res/android"; package="com.android.localguide"> <application> <activity class=".CallingActivity" android:label="callingactivity"> <intent-filter> <action android:value="android.intent.action.MAIN" /> <category android:value="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <activity class=".anotherActivity" android:label="anotheractivity"> <intent-filter> <action android:value="com.android.localguide.GET_RESULT" /> <category android:value="android.intent.category.DEFAULT" /> </intent-filter> </activity> </application> </manifest> One more app,which has two activities like below. <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android"; package="com.android.test" android:versionCode="1" android:versionName="1.0"> <application android:icon="@drawable/icon" android:label="@string/ app_name"> <activity android:name=".testmain" 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=".results"> <intent-filter> <action android:name="com.android.localguide.GET_RESULT"/> <category android:name="android.intent.category.DEFAULT"/> </intent-filter> </activity> </application> </manifest> I ran the first app in emulator and pressed home screen, it mean it runs in the background.(Not exited ) Then i opened the second app and clicked a button in frirst activity(testmain) and tried to call setAction "com.android.localguide.GET_RESULT" i.setAction("com.android.localguide.GET_RESULT"); But it is opening the activity "results".. It dint showed a options to choose which components( i expected first app ) activity i need to use ? Am i right in executing in the right context to understand that point no 4 ? Could anyone please elloborate on that point ? thanks, Mani -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
