更改Android的动作条按钮样式 [英] Changing android actionbar button style

问题描述

目前，我正在改变对我的看法动作条 菜单项像这样：

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

MenuItem menuItem = menu.add(title);

TextView tv = new TextView(context);
tv.setTypeface(myTypeface);
tv.setText("hello");

menuItem.setActionView(tv);

然而，按钮，我假设这个禁用该功能，因为我已经改变了而ActionView 。有反正我能做到这一点，同时保留了按键功能？

However this disabled the function of the button, which I'm assuming is because I've changed the ActionView. Is there anyway I can do this whilst retaining the button function?

推荐答案

下面是创建自定义的例子菜单项为动作条。

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

第一：创建查看，将作为您的菜单项。

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");
    }

}

二：创建，你会真正应用到菜单项的布局。

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>

这是重要的，包括样式风格=机器人：ATTR / actionButtonStyle，以确保布局中正确反映动作条项目。同样重要的是要包括安卓contentDescription 的布局。通常情况下，当你长时间preSS一个菜单项有一个图标，工具提示显示，以表明该菜单项是对于。在你的情况，你需要采取额外的步骤，以确保该提示是仍然可以访问。

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.

有关这方面的一个伟大的帮手是罗马Nurik的的cheatsheet 。你可以看到我使用它的操作布局的构造。

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.

您专门询问了菜单项是可选择的。要做到这一点，请确保您包括安卓背景=机器人：ATTR / selectableItemBackground和机器人：可点击=真正的属性。

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.

第三：使用安卓actionLayout 属性来设置你的布局和膨胀的菜单通常是您活动中的或片段。

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"/>

使用菜单项

Using the MenuItem

在 onCreateOptionsMenu 呼叫 MenuItem.getActionView 和 View.onClickListener 。这是因为 onOptionsItemSelected 将不会被要求进行定制查看

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
    }
});

结果

这篇关于更改Android的动作条按钮样式的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！