CODEWITHSUNDEEP
androidandroid-intentpreferenceactivity
Lama
Lama

Reputation: 1323

Android: Start Activity from preferences.xml

I would like to start an Activity from a default preferences.xml, with < intent > tag. The Activities are well tested, the problem is not with that. (I'm extending PreferenceActivity in my app, so the preferences.xml is "comes" with that) Please look at the code, what's wrong?

preferences.xml:

.... 
<PreferenceCategory 
    android:title="@string/titleEtcSetup">
    <PreferenceScreen
        android:key="renameCourses"
        android:title="@string/titleRenameCourses"
        android:summary="@string/textRenameDisplayedCoursesNames">
        <intent
             android:action="android.intent.action.VIEW"
             android:targetPackage="my.notifier.ui"
             android:targetClass="my.notifier.ui.EditCoursesNamesActivity" />         
    </PreferenceScreen>
.....
</PreferenceCategory>
.....

manifest.xml:

....
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="my.notifier.ui"....
....
<activity android:name=".EditCoursesNamesActivity" android:label="@string/titleRenameCourses">
        <intent-filter>
            <action android:name="android.intent.action.VIEW" />
            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
 .....

The Activity isn't calling when I press the "renameCourses item", nothing happens. The LogCat is "clear", no errors or warnings. I was searching a lot, and I didn't find a solution, maybe I just missed something... Please help!

Upvotes: 69

Views: 58361

Answers (13)

Jim
Jim

Reputation: 10278

You can do this programmatically in a Preferences/Settings Activity if you create one:

    final PreferenceScreen renameCourses = (PreferenceScreen) findPreference("renameCourses");
    renameCourses.setIntent(new Intent(getContext(), EditCoursesNamesActivity.class));

Upvotes: 0

lava
lava

Reputation: 7343

<Preference>
<intent
    android:targetPackage="applicationIdFromBuildGradle"
    android:targetClass="targetClassFromJavaFile.YourClassName"/>

Please care use packgename in build.gradle(app)
applicationId "com.some.some"
my package was like this "com.some.love" in manifest and class I got exception while running .This Solved me
reference @style-7

Upvotes: 0

Style-7
Style-7

Reputation: 1209

<Preference>
    <intent
        android:targetPackage="applicationIdFromBuildGradle"
        android:targetClass="targetClassFromJavaFile.YourClassName"/>
</Preference>

Upvotes: 2

Ali Bagheri
Ali Bagheri

Reputation: 3419

I was having the same issue. and solve by this

androidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
          package="com.example.coding1.myapp">
<application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme">

        <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" />
            </intent-filter>
        </activity>
// ==================== HERE ================================
        <activity
            android:name="yaran.AccountWorker.AuthenticatorActivity"
            android:label="@string/app_name"
            >
            <intent-filter>
                <action android:name="AuthenticatorActivity" />
                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>
// ========================================================
        <service android:name="yaran.AccountWorker.AuthenticatorService" android:exported="false"  android:process=":auth">
            <intent-filter>
                <action android:name="android.accounts.AccountAuthenticator" />
            </intent-filter>
            <meta-data android:name="android.accounts.AccountAuthenticator"
                       android:resource="@xml/authenticator" />
        </service>
    </application>

and in Preference:

<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">

    <PreferenceCategory
        android:title="General Settings" />

    <Preference
        android:key="account_settings"
        android:title="Account Settings"
        android:summary="">
        <intent
            android:action="AuthenticatorActivity"
            android:targetPackage="com.example.coding1.myapp"
            android:targetClass="yaran.AccountWorker.AuthenticatorActivity" />
    </Preference>
</PreferenceScreen>

Upvotes: 3

BoD
BoD

Reputation: 11035

Caution! The value of targetPackage should be the package id of the app, as declared in the root element of your AndroidManifest.xml file (which you define in your Gradle build file). It is not necessary the same as the Java package of your Activity class (people usually put them in a subpackage of "ui").

So in your specific case, I bet you the targetPackage should be "my.notifier", not "my.notifier.ui" (I would have to see the manifest to be sure).

Upvotes: 35

yoo
yoo

Reputation: 31

targetPackage and targetClass(prefix) may differ because of refactoring package name. Easy way to check it you can delete activity in manifest and call startActivity() then you will see this error in logCat: "Unable to find explicit activity class {'targetPackage'/'targetClass'}". Those are the right names you should write into Preference>intent. Intent-filter is not needed.

Upvotes: 1

Shygar
Shygar

Reputation: 1252

I was having the same issue. I got this working by only declaring the action in my AndroidManifest.xml, as such:

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.example.myapp" android:versionName="1.3" android:versionCode="4">

...

    <activity android:name=".activities.MyActivity" 
              android:label="@string/my_activity_title"
              android:theme="@android:style/Theme.Black.NoTitleBar">
        <intent-filter>
           <action android:name="com.example.myapp.activities.MyActivity" />
           <category android:name="android.intent.category.DEFAULT" />
       </intent-filter>
    </activity>

Then in my Preferences xml file:

<PreferenceCategory
        android:title="@string/my_activity_title">
    <PreferenceScreen
        android:title="@string/my_activity_title" 
        android:summary="@string/my_activity_title">
        <intent android:action="com.example.myapp.activities.MyActivity"/>
    </PreferenceScreen>
</PreferenceCategory>

Upvotes: 67

Juan Jos&#233; Melero G&#243;mez
Juan Jos&#233; Melero G&#243;mez

Reputation: 2789

I solved the same issue by declaring the <intent-filter> in the manifest as follows:

<activity
    android:name="PeriodosActivity"
    android:label="Periodos"
    android:screenOrientation="portrait">

    <intent-filter>
        <action android:name="Periodos" /> /*Same as in the preference's <intent> element's action attribute*/
        <category android:name="android.intent.category.DEFAULT"/>

</intent-filter>

Upvotes: 0

dvikv90
dvikv90

Reputation: 331

No need to add IntentFilter. You can refer to activity by fully qualified name:

<intent android:targetPackage="my.notifier.ui"
    android:targetClass="my.notifier.ui.EditCoursesNamesActivity"/>

Upvotes: 23

Phil Haigh
Phil Haigh

Reputation: 4591

This solution shows you how to wire in an activity into your preferences headers.

First, your target activity must be declared in the manifest like this:

<activity android:name=".ui.activities.MyActivity">
    <intent-filter>
        <action android:name=".ui.activities.MyActivity" />
        <category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>

Notice here that the android:name for the activity and action are the same.

Now in your preferences.xml file you need only to declare a header like this:

<header
    android:title="@string/my_activity_title"
    android:summary="@string/my_activity_summary">
    <intent android:action=".ui.activities.MyActivity"/>
</header>

And that's all there is to it.

Upvotes: 3

concept
concept

Reputation: 761

I was able to fix this by changing the category in the intent filter from

android.intent.category.DEFAULT

to

android.intent.category.PREFERENCE

http://developer.android.com/reference/android/content/Intent.html#CATEGORY_PREFERENCE

<activity
  android:name=".ui.DatapackSelectionActivity"
  android:label="@string/app_name"
  android:screenOrientation="portrait"
  android:theme="@android:style/Theme.NoTitleBar" >
    <intent-filter>
        <action android:name="android.intent.action.VIEW" />
        <category android:name="android.intent.category.PREFERENCE" />
    </intent-filter>
</activity>

I guess if you want your action to be even more specific just remove the whole category node

<activity
  android:name=".ui.DatapackSelectionActivity"
  android:label="@string/app_name"
  android:screenOrientation="portrait"
  android:theme="@android:style/Theme.NoTitleBar" >
    <intent-filter>
        <action android:name="android.intent.action.VIEW" />
    </intent-filter>
</activity>

Upvotes: 1

Kieran
Kieran

Reputation: 860

When I had this problem it was because I had made a sub-package for my activities. When I moved it into the root package the Preference screen could launch it.

Upvotes: 4

Michael
Michael

Reputation: 54705

I believe <intent> tag must be inside <Preference>, not <PreferenceScreen>.

<PreferenceCategory 
    android:title="@string/titleEtcSetup">
    <Preference
        android:key="renameCourses"
        android:title="@string/titleRenameCourses"
        android:summary="@string/textRenameDisplayedCoursesNames">
        <intent
             android:action="android.intent.action.VIEW"
             android:targetPackage="my.notifier.ui"
             android:targetClass="my.notifier.ui.EditCoursesNamesActivity" />         
    </Preference>
.....
</PreferenceCategory>

Upvotes: 53

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