android toolbar使用记录

1.打开Project structure，选择app modules，切换到Dependencies添加com.android.support.design.26.0.0.alpha1

2.在layout中添加toolbar

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 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"
    tools:context="com.homelink.testtoolbar4.MainActivity">


    <android.support.design.widget.AppBarLayout
        android:layout_height="wrap_content"
        android:layout_width="match_parent"
        android:theme="@style/AppTheme.AppBarOverlay">
        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="50dp"
            app:popupTheme="@style/AppTheme.PopupOverlay" />
    </android.support.design.widget.AppBarLayout>
    <!--内容-->


</android.support.constraint.ConstraintLayout>

3.去掉默认的ActionBar。

在values下styles.xml中添加样式：

<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
    <!-- Customize your theme here. -->
    <item name="colorPrimary">@color/colorPrimary</item>
    <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
    <item name="colorAccent">@color/colorAccent</item>
</style>

<!-- activity theme. 无ActionBar样式：-->
<style name="AppTheme.NoActionBar">
    <item name="windowActionBar">false</item>
    <item name="windowNoTitle">true</item>
</style>
弹出菜单的样式：

<style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />
<style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />

打开manifests下的AndroidManifest.xml加入android:theme="@style/AppTheme.NoActionBar"

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.homelink.testtoolbar4">

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity"
            android:theme="@style/AppTheme.NoActionBar">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>
4.在Activity中添加Toolbar的设置：

public class MainActivity extends AppCompatActivity {

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



        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        // 设置图标
        toolbar.setLogo(R.mipmap.ic_launcher);
        // 设置标题
        toolbar.setTitle("Title");
        // 设置副标题
        toolbar.setSubtitle("Sub title");
        // 设置返回按钮图标
        toolbar.setNavigationIcon(R.drawable.hwpush_ic_toolbar_back);
        setSupportActionBar(toolbar);
        // 添加默认返回按钮
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        // 返回按钮的点击事件
        toolbar.setNavigationOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(getBaseContext(), "点击了左侧导航按钮", Toast.LENGTH_SHORT).show();
            }
        });
    }
然后默认的ActionBar没有了
5.加入右边菜单项
添加menu,menu_default.xml

<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">
    <item
        android:id="@+id/action_edit"
        android:title="create"
        android:orderInCategory="1"
        android:icon="@android:drawable/ic_menu_edit"
        app:showAsAction="collapseActionView" />
    <item
        android:id="@+id/action_more"
        android:title="more"
        android:orderInCategory="2"
        android:icon="@android:drawable/ic_menu_more"
        app:showAsAction="ifRoom" />
</menu>
5.在MainActivity.java中重写两个方法，实现菜单及其按钮的点击事件

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.menu_default, menu);
    return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()){
        case R.id.action_edit:
            Toast.makeText(getBaseContext(), "点击了edit图标", Toast.LENGTH_LONG).show();
            break;
        case R.id.action_more:
            Toast.makeText(getBaseContext(), "点击了more图标", Toast.LENGTH_LONG).show();
            break;
        default:
            break;
    }
    return super.onOptionsItemSelected(item);
}