android toolbar效果2

標籤：height   ring   tail   cti   primary   有一個   resource   des   ble   

只有一個按鈕的情況

<resources>
    <string name="app_name">照片</string>
</resources>
styles.xml

<resources>

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


        <!-- Toolbar styles -->
        <item name="toolbarStyle">@style/Widget.AppCompat.Toolbar</item>
    </style>

</resources>

mainActivity.java

Toolbar myToolbar = (Toolbar) findViewById(R.id.my_toolbar);
setSupportActionBar(myToolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);

activity_main.xml

<?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.testtoolbar7.MainActivity">    <android.support.v7.widget.Toolbar        style="style/toolbarStyle"        android:id="@+id/my_toolbar"        xmlns:android="http://schemas.android.com/apk/res/android"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:background="?attr/colorPrimary"        android:minHeight="?attr/actionBarSize">        <ImageView            android:id="@+id/bluetoothState"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:src="@drawable/fm_detailitem_walk"            android:contentDescription="content_description_bluetooth_status"            android:padding="8dp"            android:layout_marginRight="10dp"            android:layout_gravity="right"/>    </android.support.v7.widget.Toolbar>    <TextView        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="Hello World!"        app:layout_constraintBottom_toBottomOf="parent"        app:layout_constraintLeft_toLeftOf="parent"        app:layout_constraintRight_toRightOf="parent"        app:layout_constraintTop_toTopOf="parent" /></android.support.constraint.ConstraintLayout>

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android toolbar效果2