将工具栏添加到FragmentActivity [英] Adding toolbar to a FragmentActivity

问题描述

Am在一个类中扩展了FragmentActivity，该类用作我的其他活动的基础活动. 我的问题是，当我从基本活动扩展其他活动时，我失去了工具栏功能.如何将其添加到我的基本活动中，以便我的活动可以继承工具栏? 有指针吗?

Am extending a FragmentActivity in a class which serves as my base activity where my other activities extend from. My issue is when I extend my other activities from my base activity, I loose toolbar functionality. How can I add this to my base activity so that my activities can inherit the toolbar? Any pointers?

推荐答案

如果片段应具有ToolBar的自定义视图，则可以为每个片段分别实现ToolBar.

In case fragments should have custom view of ToolBar you can implement ToolBar for each fragment separately.

将ToolBar添加到fragment_layout中:

<android.support.v7.widget.Toolbar
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/toolbar"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="?attr/colorPrimaryDark"/>

在片段中找到它:

@Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment, container, false);
        Toolbar toolbar = (Toolbar) view.findViewById(R.id.toolbar);

        //set toolbar appearance
        toolbar.setBackground(R.color.material_blue_grey_800);

        //for crate home button
        ActionBarActivity activity = (ActionBarActivity) getActivity();
        activity.setSupportActionBar(toolbar);
        activity.getSupportActionBar().setDisplayHomeAsUpEnabled(true);
}

菜单侦听器可以通过两种方式创建:

menu listener could be created two ways:

1.override onOptionsItemSelected在您的片段中:

1.override onOptionsItemSelected in your fragment:

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    switch(item.getItemId()){
        case android.R.id.home:
            getActivity().onBackPressed();
    }
    return super.onOptionsItemSelected(item);
}

2.set在onCreateView()中创建工具栏的侦听器:

2.set listener for toolbar when create it in onCreateView():

toolbar.setOnMenuItemClickListener(new Toolbar.OnMenuItemClickListener() {
            @Override
            public boolean onMenuItemClick(MenuItem menuItem) {
                return false;
            }
});

这篇关于将工具栏添加到FragmentActivity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！