platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/utils/ToolbarComposer.java


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49

package com.mapbox.mapboxsdk.testapp.utils;

import android.support.annotation.IdRes;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;

import com.mapbox.mapboxsdk.testapp.R;

/**
 * Helper class to compose a Toolbar in an AppCompatActivity
 */
public class ToolbarComposer {


    /**
     * Initialises an up navigation toolbar with id R.id.toolbar on an AppCompatActivity.
     *
     * @param activity   The activity hosting the Toolbar with id R.id.toolbar
     */
    @Nullable
    public static Toolbar initDefaultUpToolbar(@NonNull AppCompatActivity activity) {
        return initDefaultUpToolbar(activity, R.id.toolbar);
    }

    /**
     * Initialises an up navigation toolbar given a view id on an AppCompatActivity.
     *
     * @param activity   The activity hosting the Toolbar
     * @param toolbarRes The view id resource used to look up the Toolbar
     */
    @Nullable
    public static Toolbar initDefaultUpToolbar(@NonNull AppCompatActivity activity, @IdRes int toolbarRes) {
        Toolbar toolbar = (Toolbar) activity.findViewById(toolbarRes);
        if (toolbar != null) {
            activity.setSupportActionBar(toolbar);

            ActionBar actionBar = activity.getSupportActionBar();
            if (actionBar != null) {
                actionBar.setDisplayHomeAsUpEnabled(true);
                actionBar.setDisplayShowHomeEnabled(true);
            }
        }
        return toolbar;
    }

}