CODEWITHSUNDEEP
javaandroidandroid-actionbar
BigBugCreator
BigBugCreator

Reputation: 1059

Adding icons to the ActionBar on Android

Im following the next tutorial: Adding Action Buttoms, I did it step by step but when I run my app doesn´t shows any icon. I was debugging but everything seems correct and I have any nullPointerException or something like that.

This is my mainActivity: 

package com.training.training.appone;

import android.content.Intent;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;


public class MyActivity extends ActionBarActivity {

public final static String EXTRA_MESSAGE = "          com.        training.example.appone.MESSAGE";
 @Override
 protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_my);


 }


 @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_my, menu);
    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.menu.main_activiy_actions, menu);
    return super.onCreateOptionsMenu(menu);
}

@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 == R.id.action_settings) {
        return true;
    }

    return super.onOptionsItemSelected(item);
}

public void sendMessage(View view){
    Intent intent = new Intent(this, DisplayMessageActivity.class);
    EditText editText = (EditText) findViewById(R.id.txt_edit_message);
    String message = editText.getText().toString();
    // El primer parametro es el KeyName:
    intent.putExtra(EXTRA_MESSAGE, message);
    startActivity(intent);
}
}

And I put this XML: 

    <?xml version="1.0" encoding="utf-8"?>
    <menu xmlns:android="http://schemas.android.com/apk/res/android">
        <!-- Search, should appear as action button -->
        <item android:id="@+id/action_search"
    android:icon="@drawable/ic_action_search"
    android:title="@string/action_search"
    android:showAsAction="ifRoom" />
        <!-- Settings, should always be in the overflow -->
        <item android:id="@+id/action_settings"
    android:title="@string/action_settings"
    android:showAsAction="never" />
    </menu>

I have an error in the last line "android:showsAsAction="never", I have the libray downloaded and referenced in my build gradle: compile 'com.android.support:appcompat-v7:22.0.0' I also tryed changed "android" to "res-auto", but it says that the items must have a title (they have them):

   <?xml version="1.0" encoding="utf-8"?>
   <menu xmlns:android="http://schemas.android.com/apk/res/res-auto">
  <!-- Search, should appear as action button -->
  <item android:id="@+id/action_search"
    android:icon="@drawable/ic_action_search"
    android:title="@string/action_search"
    android:showAsAction="ifRoom" />
  <!-- Settings, should always be in the overflow -->
  <item android:id="@+id/action_settings"
    android:title="@string/action_settings"
    android:showAsAction="never" />
   </menu>

My library:

AppCompat

In this point I have no idea what happends.

Upvotes: 0

Views: 145

Answers (4)

Stuart Robertson
Stuart Robertson

Reputation: 793

If you look at the xml schemas in the tutorial you have both: 

xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:yourapp="http://schemas.android.com/apk/res-auto"

Notice the xmlns:android and xmlns:yourapp are different. So all you need to do is:

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

    <!-- Search, should appear as action button -->
    <item android:id="@+id/action_search"
          android:icon="@drawable/ic_action_search"
          android:title="@string/action_search"
          yourapp:showAsAction="ifRoom" />

    <!-- Settings, should always be in the overflow -->
    <item android:id="@+id/action_settings"
          android:title="@string/action_settings"
          yourapp:showAsAction="never" />
</menu>

The android and yourapp tags can be named however you want. They are just a named reference to the schema.

Upvotes: 1

Borja Alvarez
Borja Alvarez

Reputation: 199

Probably as you are using AppCompat library, you should use

app:showAsAction="never"

instead

android:showAsAction="never"

Upvotes: 1

Harish
Harish

Reputation: 63

In your XML file, Please change this line 

app:showAsAction="always"

instead of 

android:showAsAction="never"

Upvotes: 2

Pooja
Pooja

Reputation: 2467

Make the following changes in your menu.xml

<menu 
       ....
      xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:app="http://schemas.android.com/apk/res-auto">

<item
    ...
    app:showAsAction="never" />

</menu>

And if you want to display your menu on actionBar then it should be app:showAsAction="always".

Upvotes: 2

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