工具栏未显示,没有错误

时间:2015-09-23 11:59:37

标签: android

我正在尝试让我的应用适合新的API,但我在将旧的ActionBar更改为工具栏时遇到了很多麻烦。它只是没有出现。这是我的MainActivity:

public class MainActivity extends AppCompatActivity implements
    ActionBar.TabListener, FragmentDrawer.FragmentDrawerListener {

    private Toolbar mToolbar;
    protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    mToolbar = (Toolbar) findViewById(R.id.toolbar);

    setSupportActionBar(mToolbar);
    getSupportActionBar().setDisplayShowHomeEnabled(true);

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

public boolean onOptionsItemSelected(MenuItem item) {

    super.onOptionsItemSelected(item);

    switch (item.getItemId()) {
        case R.id.action_search:

            break;
        case R.id.settings:

            break;
    }

    return super.onOptionsItemSelected(item);
}

这是菜单xml文件:

<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"
    tools:context="com.adrissa.klea.MainActivity" >

    <item
        android:id="@+id/action_search"
        android:title="@string/action_search"
        android:icon="@drawable/ic_action_search"
        app:showAsAction="ifRoom" />

    <item
        android:id="@+id/settings"
        android:icon="@drawable/ic_action_settings"
        android:title="@string/settings"
        app:showAsAction="ifRoom"/>



</menu>

这是activity_main xml文件:

<android.support.v4.widget.DrawerLayout
    android:id="@+id/drawer_layout"
    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"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <include
        android:id="@+id/toolbar"
        layout="@layout/toolbar"/>
    <FrameLayout
        android:id="@+id/container_body"
        android:layout_width="fill_parent"
        android:layout_height="0dp"
        android:layout_weight="1" />

    <fragment
        android:id="@+id/fragment_navigation_drawer"
        android:name="com.adrissa.klea.FragmentDrawer"
        android:layout_width="@dimen/navigation_drawer_width"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        app:layout="@layout/fragment_navigation_drawer"
        tools:layout="@layout/fragment_navigation_drawer" />

</android.support.v4.widget.DrawerLayout>

我的styles.xml

<resources>

    <style name="MyTheme" parent="@style/Theme.AppCompat.Light.NoActionBar">
        <item name="windowNoTitle">true</item>
        <item name="windowActionBar">false</item>
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
    </style>

</resources>

最后是toolbar.xml文件

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.Toolbar
    android:id="@+id/toolbar"
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:local="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="?attr/colorPrimary"
    android:minHeight="?attr/actionBarSize"
    local:popupTheme="@style/ThemeOverlay.AppCompat.Light"
    local:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"/>

我可以看到我并不是唯一一个在实施工具栏而不是ActionBar时遇到问题的人,但我似乎没有找到任何建议的解决方案,以适应我的问题。我没有错。只是没有工具栏。

1 个答案:

答案 0 :(得分:0)

您必须更改style.xml,如下所示:

<resources>
    <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.NoActionBar">
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/ColorPrimary</item>
        <item name="colorPrimaryDark">@color/ColorPrimaryDark</item>
    </style>
</resources>

parent = "Theme.AppCompat.NoActionBar"

您也可以在LinearLayout中添加您的include,例如:

 <LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentTop="true"
    android:orientation="vertical">
    <!-- up bar -->
    <include
        android:id="@+id/toolbar"
        layout="@layout/toolbar" />
</LinearLayout>

也可以在toolbar.xml中尝试:

android:layout_height="?attr/actionBarSize"