Changing android actionbar button style

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[愿得一人]
[愿得一人] 2021-01-07 13:21

I\'m currently changing the view on my ActionBar MenuItem like so:

MenuItem menuItem = menu.add(title);

TextView tv = new TextView         


        
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  • 2021-01-07 13:41

    Here's an example of creating a custom MenuItem for the ActionBar.

    First: Create the View that will serve as your MenuItem.

    ActionLayoutExample

    /**
     * A {@link RelativeLayout} that serves as a custom {@link MenuItem}
     */
    public class ActionLayoutExample extends RelativeLayout {
    
        /** The MenuItem */
        private TextView mHello;
    
        /**
         * Constructor for <code>ActionLayoutExample</code>
         * 
         * @param context The {@link Context} to use
         * @param attrs The attributes of the XML tag that is inflating the view
         */
        public ActionLayoutExample(Context context, AttributeSet attrs) {
            super(context, attrs);
            // Ensure the MenuItem is accessible
            CheatSheet.setup(this);
        }
    
        /**
         * {@inheritDoc}
         */
        @Override
        protected void onFinishInflate() {
            super.onFinishInflate();
            // Initialize the TextView
            mHello = (TextView) findViewById(android.R.id.text1);
            mHello.setTypeface(myTypeface);
            mHello.setText("Hello");
        }
    
    }
    

    Second: Create the layout that you'll actually apply to the MenuItem.

    action_layout_example

    <your.package.name.ActionLayoutExample xmlns:android="http://schemas.android.com/apk/res/android"
        style="?android:attr/actionButtonStyle"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="?android:attr/selectableItemBackground"
        android:clickable="true"
        android:contentDescription="@string/hello_world" >
    
        <TextView
            android:id="@android:id/text1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
    
    </your.package.name.ActionLayoutExample>
    

    It's important to include the style style="?android:attr/actionButtonStyle" to make sure the layout properly reflects ActionBar items. It's also important to include a android:contentDescription in your layout. Normally when you long press a MenuItem with an icon, a tooltip is shown to indicate what that MenuItem is for. In your case, you'll need to take an extra step to make sure this tooltip is still accessible.

    A great helper for this is Roman Nurik's CheatSheet. You can see how I'm using it in the constructor of the action layout.

    You specifically asked about the MenuItem being selectable. To do this, make sure you include the android:background="?android:attr/selectableItemBackground" and android:clickable="true" attributes.

    Third: Use the android:actionLayout attribute to set your layout and inflate the menu normally within your Activity or Fragment.

    your_menu

    <item
        android:id="@+id/action_typeface"
        android:actionLayout="@layout/action_layout_example"
        android:showAsAction="ifRoom"
        android:title="@string/hello_world"/>
    

    Using the MenuItem

    In onCreateOptionsMenu call MenuItem.getActionView and on View.onClickListener. This is because onOptionsItemSelected will not be called for a custom View

    final View example = menu.findItem(R.id.action_typeface).getActionView();
    example .setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View v) {
            // Do something
        }
    });
    

    The results

    enter image description here

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  • 2021-01-07 13:46

    try this

    tv.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    //handle
                }
            });
    
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