Question

我在工具栏的底部实现了边框。如果我没有显示任何菜单项，它看起来很棒。下图显示了我的工具栏的当前外观。我不知道为什么边框在菜单项下很厚。我该如何解决这个问题？

thickToolBarBottomBorder

styles.xml

<style name="MyCustomToolBarTheme" parent="ThemeOverlay.AppCompat.Light">
    <item name="android:textColorPrimary">@color/Blue</item>
    <item name="android:background">@drawable/bottom_border_blue</item>

</style>

app_bar.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="@dimen/dp_50"
    android:minHeight="?android:attr/actionBarSize"
    app:popupTheme="@style/ThemeOverlay.AppCompat.Dark"
    app:theme="@style/MyCustomToolBarTheme">



    <TextView
        android:id="@+id/toolbarTitleTextView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:textSize="@dimen/sp_17"
        android:textColor="@color/Blue"/>

</android.support.v7.widget.Toolbar>

bottom_border_blue.xml

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
    <item >
        <shape
            android:shape="rectangle">
            <stroke android:width="1dp" android:color="@color/Blue" />
            <solid android:color="@color/White" />
        </shape>
    </item>

    <item android:bottom="1dp">
        <shape
            android:shape="rectangle">
            <stroke android:width="1dp" android:color="@color/White" />
            <solid android:color="#00000000" />
        </shape>
    </item>

</layer-list>

menu_boat.xml

<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools">
    <item
        android:id="@+id/editButton"
        android:orderInCategory="100"
        android:title="@string/edit"
        android:icon="@drawable/edit"
        app:showAsAction="always" />
</menu>

BoatActivity.java

public class BoatActivity extends ActionBarActivity {
    private Toolbar toolbar;
    private TextView titleTextView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_boat);

        toolbar=(Toolbar)findViewById(R.id.app_bar);
        toolbar.setTitle("");

        titleTextView=(TextView)toolbar.findViewById(R.id.toolbarTitleTextView);
        titleTextView.setText(R.string.myBoat);

        setSupportActionBar(toolbar);
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        getSupportActionBar().setDisplayShowHomeEnabled(true);
        toolbar.setNavigationIcon(R.drawable.ic_back_button);
    }


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_boat, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == android.R.id.home) {
            finish();
        }

        return super.onOptionsItemSelected(item);
    }
}

Answer 1

尝试将bottom_border_blue背景设置为xml中工具栏的背景，并检查它是否有效。

工具栏的下边框未在菜单项下正常显示

1 个答案: