Find debug keystore and SHA1 in Android Studio

This video show how to find debug.keystore and SHA1 in Android Studio:

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Replace ActionBar with android support v7 widget Toolbar

A Toolbar is a generalization of action bars for use within application layouts. While an action bar is traditionally part of an Activitys opaque window decor controlled by the framework, a Toolbar may be placed at any arbitrary level of nesting within a view hierarchy. An application may choose to designate a Toolbar as the action bar for an Activity using the setSupportActionBar() method.

This example show how to replace ActionBar with android.support.v7.widget.Toolbar.

- Create a new project with Minimum SDK of API 16, select template of Empty Activity.

- Edit res/values/styles.xml to use style of "Theme.AppCompat.Light.NoActionBar".

<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>
 </style>

</resources>

- Add <android.support.v7.widget.Toolbar> to /res/layout/activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 
 
 android_layout_width="match_parent"
 android_layout_height="match_parent"
 android_paddingBottom="@dimen/activity_vertical_margin"
 android_paddingLeft="@dimen/activity_horizontal_margin"
 android_paddingRight="@dimen/activity_horizontal_margin"
 android_paddingTop="@dimen/activity_vertical_margin"
 tools_context="com.blogspot.android_er.androidtoolbar.MainActivity">

 <android.support.v7.widget.Toolbar
 android_id="@+id/toolbar"
 android_layout_width="match_parent"
 android_layout_height="56dp"
 android_background="#FFA000"/>
 <TextView
 android_layout_width="wrap_content"
 android_layout_height="wrap_content"
 android_text="Hello World!" />
</RelativeLayout>

- Edit MainActivity.java to call setSupportActionBar(toolbar) method.

package com.blogspot.android_er.androidtoolbar;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;

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);
 setSupportActionBar(toolbar);
 }
}

- To make the Toolbar fill the width of the layout, edit /res/values/dimens.xml to set both "activity_horizontal_margin" and "activity_vertical_margin" to 0dp.

<resources>
 <!-- Default screen margins, per the Android Design guidelines. -->
 <dimen name="activity_horizontal_margin">0dp</dimen>
 <dimen name="activity_vertical_margin">0dp</dimen>
</resources>

This video show how-to in Android Studio, and how it shown on Android Emulator of API 16 and 23.


More:
- Set title, subtitle and logo of Toolbar
- Add OptionsMenu to Toolbar
- Set image on Toolbar
- Implement checkable items in OptionsMenu of Toolbar

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