InflateException When Adding Toolbar In Android

Question

I am new to material design and i am trying a few things out. For my app minimum sdk is 21. But my app crashes with the following code. code for toolbar is

Solution 1:

Your toolbar id is toolbar not tool_bar. Use like,

public class MainActivity extends AppCompatActivity  {
Toolbar toolbar;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    toolbar=(Toolbar) findViewById(R.id.toolbar);

  }
}

EDIT 1 : Example to use Toolbar

toolbar.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.Toolbar
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/colorPrimary"
xmlns:android="http://schemas.android.com/apk/res/android">

<TextView
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:text="@string/app_name"
    android:textColor="#fff"
    android:gravity="center"
    android:textStyle="bold"
    android:textSize="18dp"/>

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

main_activity.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:ads="http://schemas.android.com/apk/res-auto"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">

<include
    android:id="@+id/this_toolbar"
    layout="@layout/toolbar"/>

<TextView
    android:id="@+id/toolbar_title"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_below="@+id/this_toolbar"
    android:text="TextView"/>

</RelativeLayout>

MainActivity.java

public class MainActivity extends AppCompatActivity {

TextView m_toolbar_title;

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

    m_toolbar_title = (TextView)findViewById(R.id.toolbar_title);
    m_toolbar_title.setText("Activity Title");

    }

}

Your layout="@layout/toolbar" in activity_main.xml, toolbar should be file_name which is having <Toolbar>

Have a look. This may helps you.

Solution 2:

Try this.

Your toolbar.xml should be like this .

<?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:id="@+id/tool_bar"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="?attr/colorPrimary"
    app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
    >

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

Solution 3:

try this code

<android.support.design.widget.AppBarLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:theme="@style/AppTheme.AppBarOverlay">

<android.support.v7.widget.Toolbar
    android:id="@+id/toolbar"
    android:layout_width="match_parent"
    android:layout_height="?attr/actionBarSize"
    android:background="?attr/colorPrimary"
    app:popupTheme="@style/AppTheme.PopupOverlay" />

</android.support.design.widget.AppBarLayout>

and add these lines in style.xml

Baca Juga

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

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

Solution 4:

change your main activity xml to this

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

    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.example.sagar.moviesuccesspredictor.MainActivity">
<include
    android:id="@+id/tool_bar"
    layout="@layout/tool_bar"
    tools:layout_editor_absoluteY="45dp"
    tools:layout_editor_absoluteX="0dp" />
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello World!"
      android:layout_below="@+id/tool_bar"
        android:layout_marginTop="10dp"/>

</RelativeLayout>

the problem was in tag instead of android:layout , you have to use layout:yourLayoutfile. and make sure you use support toolbar in mainActivity as well

Solution 5:

Open logcat, it may suggest that Toolbar conflicts with existent ActionBar. Solution is modify AndroidManifest.xml

<activity
            android:name=".ToolbarActivity"
            android:label="@string/app_name"
            android:theme="@style/Theme.Design.Light.NoActionBar">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

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

Add theme which has no default ActionBar.

Android Devweb