Start Activity from preference screen (intent defined in xml file)

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我在风中等你
我在风中等你 2021-01-01 18:18

In my preference file I go this

    
        
    

        
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6条回答
  • 2021-01-01 18:58

    I had the same issue but none of the solutions i searched on stackoverflow solved my activitynotfound Exception.

    Here is the working solution i found from here:

        <PreferenceScreen  
                    android:title="@string/title_intent_preference"  
                    android:summary="@string/summary_intent_preference">  
    
                <intent android:action="your.action.string"/>  
    
     </PreferenceScreen>  
    

    set an intent filter in your activity inside manifest.xml

        <activity ...>  
                <intent-filter>  
                    <action android:name="your.action.string"/>  
                    <category android:name="android.intent.category.DEFAULT" />  
                </intent-filter>  
    </activity>
    
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  • 2021-01-01 19:09

    In your manifest :

    This is the definition for your activity called [your package].MainActivity.

    <activity android:name=".MainActivity">
     <intent-filter>
          <action android:name="example.action.ACTION_MAIN_ACTIVITY" />
          <category android:name="android.intent.category.DEFAULT" />
    </intent-filter>
    </activity>
    

    Also, try using a PreferenceScreen:

    <PreferenceScreen android:title="@string/my_location_settings">
        <intent android:action="example.action.ACTION_MAIN_ACTIVITY">
        </intent>
    </PreferenceScreen>
    

    for more details please see this link... starting an activity from preferences.xml

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  • 2021-01-01 19:11

    To start an activity from preference screen, you can just modify your preference XML like

    <Preference
        app:key="your_key"
        app:title="@string/title"
        app:summary="@string/summary">
    
        <intent
            android:targetPackage="your.package"
            android:targetClass="your.package.ActivityClass"/>
    </Preference>
    

    or, if you need passing action, just put your action string inside intent property like

    <Preference
        app:key="your_key"
        app:title="@string/title"
        app:summary="@string/summary">
    
        <intent
            android:targetPackage="your.package"
            android:targetClass="your.package.ActivityClass"
            android:action="your.package.ACTION"/>
    </Preference>
    
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  • 2021-01-01 19:14

    You should do something like this in your intent declaration inside the preference xml:

    <intent android:targetPackage="abc.def.efg"
     android:targetClass="abc.def.efg.hig.yourClassName"/>
    

    Note: targetPackage should be same as the package property declared inside the manifest tag of AndroidManifest.xml. This is confusing sometimes, so read it again.

    So equivalent AndroidManifest.xml would have declaration like this:

    <manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="abc.def.efg">
    <application>
       ....
        <activity android:name=".hig.yourClassName"/>
    </application>
    </manifest>
    
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  • 2021-01-01 19:17

    try this

     <intent android:targetPackage="your.package"
     android:targetClass="your.package.yourMainClassName"/>
    
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  • 2021-01-01 19:20

    This isn't the right way to start an intent from xml. The android:action field isn't for the name of the activity you are trying to start; it describes an action for an intent-filter (such as android.intent.action.VIEW or android.intent.action.EDIT) that another activity can supply.

    See this answer for the correct use of <intent>, android:action, etc: https://stackoverflow.com/a/3751306/582004

    Make sure that in your AndroidManifest.xml, your activity contains an <intent-filter> with the <action> that you are requesting in your PreferenceActivity (in the answer referenced, this is android.intent.action.VIEW).

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