如何从片段中捕获导航图标单击工具栏？

Question

我有一个对话框片段,其中我有布局工具栏.我想在工具栏中使用后退按钮(导航图标)并在单击时退出片段.但我无法在(对话框)片段中捕获工具栏导航图标上的单击事件.

以下是我获取工具栏的方法:

toolbar = (Toolbar) rootView.findViewById(R.id.toolbar);
toolbar.setNavigationIcon(R.drawable.abc_ic_ab_back_mtrl_am_alpha);
toolbar.setTitle(itemType);
((AppCompatActivity)getActivity()).setSupportActionBar(toolbar);

这是对话框片段的布局文件:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout          xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/panel_cyan"
    android:id="@+id/rootLayout"
    >

<android.support.v7.widget.Toolbar
    android:id="@+id/toolbar"
    android:layout_width="match_parent"
    android:layout_height="?attr/actionBarSize"
    android:layout_alignParentLeft="true"
    android:layout_alignParentStart="true"
    android:layout_alignParentTop="true"
    android:background="@color/color_primary"
    android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
    app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />

<ListView
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/listViewItems"
    />

</RelativeLayout>

**这是到目前为止尝试但失败的**

选项项目在id R.id.home中单击

 @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        int id = item.getItemId();
        switch (id){
            case android.R.id.home:
                finish();
                break;
        }
        return super.onOptionsItemSelected(item);
    }

工具栏上的setNavigationOnClick():

toolbar.setNavigationOnClickListener(new View.OnClickListener(){
            @Override
            public void onClick(View view) {
                Toast.makeText(getActivity(), "Back clicked!",     Toast.LENGTH_SHORT).show();
            }
        });

Answer 1

添加代码块toolbar.setNavigationOnClickListener后setSupportActionBar(toolbar)

Answer 2

这适合我.

toolbar.setNavigationOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        Toast.makeText(getApplicationContext(),"your icon was clicked",Toast.LENGTH_SHORT).show();
    }
});

Answer 3

 toolbar.setOnMenuItemClickListener(new Toolbar.OnMenuItemClickListener() {
        @Override
        public boolean onMenuItemClick(MenuItem item) {
            switch (item.getItemId()) {
                case android.R.id.home:

                  // do what ever you want here
            }
            return true;
        }
    });