Base activity you might likely use when you set your theme to ``**NoActionBar**`` but with a content view.

ToolbarActivity.java

/*
 * The MIT License (MIT)
 * Copyright (c) 2015 longkai
 * The software shall be used for good, not evil.
 */

import android.content.res.Resources;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.widget.Toolbar;
import android.util.TypedValue;
import android.view.View;
import android.view.ViewGroup;
import android.widget.LinearLayout;

/**
 * Base activity you might likely use when you set your theme to ``**NoActionBar**`` but with a content view.
 *  
 * This activity simple provide you a toolbar, and override some common used method from the default activity.
 * 
 * like ``setContentView()``, setTitle()``, etc. The root view is an vertical linear layout(you may have no interest).
 * 
 * Be sure, if you want to use menu, you must use the toolbar style, since we don' t set support with the toolbar. 
 * 
 * @author longkai  
 */
public class ToolbarActivity extends ActionBarActivity {
  private LinearLayout mRootView;
  private Toolbar      mToolbar;

  @Override protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    mRootView = new LinearLayout(this);
    mRootView.setOrientation(LinearLayout.VERTICAL);
    mRootView.setLayoutParams(new ViewGroup.LayoutParams(
        ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT
    ));

    mToolbar = new Toolbar(this);

    // let' s give some color to cc
    final Resources res = getResources();
    TypedValue typedValue = new TypedValue();
    getTheme().resolveAttribute(R.attr.colorPrimary, typedValue, true);
    int colorPrimaryResId = typedValue.resourceId;
    getTheme().resolveAttribute(R.attr.actionBarSize, typedValue, true);
    int actionBarSizeResId = typedValue.resourceId;
    // what if TypedValue has a recycle() method?

    mToolbar.setBackgroundColor(res.getColor(colorPrimaryResId));
    mToolbar.setMinimumHeight(res.getDimensionPixelSize(actionBarSizeResId));
    mToolbar.setTitleTextAppearance(this, R.style.TextAppearance_AppCompat_Widget_ActionBar_Title_Inverse);

    mRootView.addView(mToolbar, ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);

    super.setContentView(mRootView);
  }

  @Override public void setContentView(View view) {
    // 'Cause always have one(index at **1** of the root view) content view, 0 is the Toolbar
    mRootView.addView(view, 1);
  }

  @Override public void setContentView(int layoutResID) {
    getLayoutInflater().inflate(layoutResID, mRootView, true);
  }

  @Override public void setContentView(View view, ViewGroup.LayoutParams params) {
    mRootView.addView(view, params.width, params.height);
  }

  @Override public void setTitle(CharSequence title) {
    mToolbar.setTitle(title);
  }

  @Override public void setTitle(int titleId) {
    setTitle(getText(titleId));
  }

  public Toolbar getToolbar() {
    return mToolbar;
  }
  
  public LinearLayout getRootView() {
    return mRootView;
  }
  
//  public void setDisplayHomeAsUpEnable() {
//    mToolbar.setNavigationIcon(R.attr.homeAsUpIndicator);
//  }
}