CODEWITHSUNDEEP
androidreplaceiconsaction
this.user3272243
this.user3272243

Reputation: 1236

How to replace/change the icon of an action bar item

I hope you can give me a hand on this one.

I have an Action bar item with a default icon set.(android:icon="@drawable/ic_action_volume_on") but the thing is that i need to change it somehow programmatically at my method "onOptionsItemSelected" and since I recently started with Android I'm a bit lost...

Upvotes: 0

Views: 111

Answers (2)

user8933446
user8933446

Reputation:

You can do this simply by defining

private Menu menu;

and in onCreateOptionMenu callback assign value to menu and get menu inflater like this 

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    this.menu=menu;
    getMenuInflater().inflate(R.menu.menu_bar, menu);
    return true;
}

And finally you can write this line to change icon in your preferred method 

menu.findItem(R.id.item_id).setIcon(R.drawable.your_icon);

Upvotes: 1

G.T.
G.T.

Reputation: 1557

First you have to save a menu instance on the onCreateOptionsMenu:

private Menu menu;

@Override
public boolean onCreateOptionsMenu(final Menu menu) {
    this.menu = menu
    ...
}

Then, you can create the following method:

private void setItemView(int itemId, int layoutId) {
    if (menu != null) {
        final Menuitem myItem = menu.findItem(itemId);
        if (myItem != null) {
            MenuItemCompat.setActionView(myItem, layoutId);
        }
    }
}

It replaces the current icon of your item by a view. For example if you want to display a ProgressBar you can create this layout (let's name it item_custom_view.xml):

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="56dp"
    android:layout_height="wrap_content"
    android:minWidth="56dp" >

    <ProgressBar
        android:layout_width="32dp"
        android:layout_height="32dp"
        android:layout_gravity="center" />
</FrameLayout>

Finally, in your Activity, just call the setItemView method. Put in parameters the id of your item and the id of your layout (in this case R.layout.item_custom_view).

Upvotes: 2

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