Contextual Action Mode AppCompatActivity not show

Question

I have my activity extending AppCompatActivity, and I wish to set a contextual action bar on it. So here is my onCreate method

Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
MainActivity.this.startSupportActionMode(new ActionBarCallBack());

My ActionBarCallBack extend android.support.v7.view.ActionMode and I declared it like this

@Override
public boolean onCreateActionMode(ActionMode mode, Menu menu) {
    mode.getMenuInflater().inflate(R.menu.contextual_menu, menu);
    return false;
}

The theme set on my manifest:

<style name="AppTheme.NoActionBar">
    <item name="windowActionBar">false</item>
    <item name="windowNoTitle">true</item>
    <item name="windowActionModeOverlay">true</item>
</style>

MainActivity:

<activity
        android:name=".MainActivity"
        android:label="@string/title_activity_main2"
        android:theme="@style/AppTheme.NoActionBar" >
</activity>

My onCreateActionMode trigger but the CAB never show.

Any ideas?

Does your theme really have no parent? I always thought it would have to inherit from (in this case) Theme.AppCompat.NoActionBar — Bö macht Blau, Jan 27 '16 at 13:09
Well I edit my question with full style.xml and the manifest activity declaration — aiqency, Jan 27 '16 at 13:52
So it seems that your activity theme indeed has no parent. What happens if you add *parent="Theme.AppCompat.Light.NoActionBar"* ? — Bö macht Blau, Jan 27 '16 at 14:00
Gradle Build complain "No resource identifier found for attribute 'parent'". Just in case I saw that my toolbar inherit from AppTheme.PopupOverlay — aiqency, Jan 27 '16 at 14:09
Ok just saw the solution I edit my question. Thanks 0X0nosugar — aiqency, Jan 27 '16 at 14:23

aiqency · Accepted Answer · 2020-04-02T21:50:12.660

3

So here was the error

@Override
public boolean onCreateActionMode(ActionMode mode, Menu menu) {
    mode.getMenuInflater().inflate(R.menu.contextual_menu, menu);
    return true; // Now it works
}

Set the windowActionModeOverlay to my Theme.NoActionBar

<item name="windowActionModeOverlay">true</item>

Don't have to set the startActionMode() from my toolBar as I saw on over stackoverflow thread. On android.support.v7.view.ActionMode this line just work fine for me.

Main2Activity.this.startSupportActionMode(new ActionBarCallBack()); //android.support.v7.view.ActionMode

edited Apr 02 '20 at 21:50

answered Jan 27 '16 at 14:32

aiqency

1,015
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From documentation for [onCreateActionMode()](http://developer.android.com/reference/android/view/ActionMode.Callback.html#onCreateActionMode%28android.view.ActionMode,%20android.view.Menu%29) "Returns: true if the action mode should be created, false if entering this mode should be aborted." – Bö macht Blau Jan 27 '16 at 14:39

score 1 · Answer 2 · answered Apr 22 '20 at 10:52

1

You return false from implemented onCreateActionMode method in your ActionMode.Callback.

Try to change the return value to true

@Override
public boolean onCreateActionMode(ActionMode mode, Menu menu) {
    // Inflate menu
    return true; //  <=====  MUST RETURN TRUE
}

answered Apr 22 '20 at 10:52

lincollincol

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Thank you for your time but I've already answered it. I will check my answer. – aiqency Apr 22 '20 at 11:42
@aiqency No problems, maybe it helps anybody in the future :) – lincollincol Apr 22 '20 at 17:21

Contextual Action Mode AppCompatActivity not show

2 Answers2