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      1 /*
      2  * Copyright (C) 2014 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.example.android.leanback;
     18 
     19 import android.app.Activity;
     20 import android.app.FragmentManager;
     21 import android.content.Context;
     22 import android.graphics.drawable.Drawable;
     23 import android.os.Bundle;
     24 import android.util.Log;
     25 
     26 import androidx.core.content.res.ResourcesCompat;
     27 import androidx.leanback.app.GuidedStepFragment;
     28 import androidx.leanback.widget.GuidanceStylist.Guidance;
     29 import androidx.leanback.widget.GuidedAction;
     30 
     31 import java.util.List;
     32 
     33 /**
     34  * Activity that showcases different aspects of GuidedStepFragments in half
     35  * screen mode. This is achieved by setting the theme for this activity
     36  * to {@code Theme.Example.Leanback.GuidedStep.Half}.
     37  */
     38 public class GuidedStepHalfScreenActivity extends Activity {
     39     private static final String TAG = "leanback.GuidedStepSupportHalfScreenActivity";
     40 
     41     @Override
     42     protected void onCreate(Bundle savedInstanceState) {
     43         Log.v(TAG, "onCreate");
     44         super.onCreate(savedInstanceState);
     45         setContentView(R.layout.guided_step_activity);
     46         GuidedStepFragment.addAsRoot(this, new FirstStepFragment(), R.id.lb_guidedstep_host);
     47     }
     48 
     49     public static class FirstStepFragment extends GuidedStepFragment {
     50 
     51        @Override
     52         public Guidance onCreateGuidance(Bundle savedInstanceState) {
     53             String title = getString(R.string.guidedstep_first_title);
     54             String breadcrumb = getString(R.string.guidedstep_first_breadcrumb);
     55             String description = getString(R.string.guidedstep_first_description);
     56             final Context context = getActivity();
     57             Drawable icon = ResourcesCompat.getDrawable(context.getResources(),
     58                     R.drawable.ic_main_icon, context.getTheme());
     59             return new Guidance(title, description, breadcrumb, icon);
     60         }
     61 
     62         @Override
     63         public void onCreateActions(List<GuidedAction> actions, Bundle savedInstanceState) {
     64             Context context = getActivity();
     65             actions.add(new GuidedAction.Builder(context)
     66                     .clickAction(GuidedAction.ACTION_ID_CONTINUE)
     67                     .description("Just do it")
     68                     .build());
     69             actions.add(new GuidedAction.Builder(context)
     70                     .clickAction(GuidedAction.ACTION_ID_CANCEL)
     71                     .description("Never mind")
     72                     .build());
     73         }
     74 
     75         public FirstStepFragment() {
     76             setEntranceTransitionType(GuidedStepFragment.SLIDE_FROM_BOTTOM);
     77         }
     78 
     79         /**
     80          * This fragment could be used by an activity using theme
     81          * {@code Theme.Leanback.GuidedStep.Half} or something else (BrowseActivity).
     82          * In order to provide a consistent half screen experience under
     83          * both scenarios, we override onProvideTheme method.
     84          */
     85         @Override
     86         public int onProvideTheme() {
     87             return R.style.Theme_Example_Leanback_GuidedStep_Half;
     88         }
     89 
     90         @Override
     91         public void onGuidedActionClicked(GuidedAction action) {
     92             FragmentManager fm = getFragmentManager();
     93             if (action.getId() == GuidedAction.ACTION_ID_CONTINUE) {
     94                 GuidedStepFragment.add(fm, new SecondStepFragment(), R.id.lb_guidedstep_host);
     95             } else if (action.getId() == GuidedAction.ACTION_ID_CANCEL){
     96                 finishGuidedStepFragments();
     97             }
     98         }
     99     }
    100 
    101     public static class SecondStepFragment extends GuidedStepFragment {
    102 
    103         @Override
    104         public int onProvideTheme() {
    105             return R.style.Theme_Example_Leanback_GuidedStep_Half;
    106         }
    107 
    108         @Override
    109         public Guidance onCreateGuidance(Bundle savedInstanceState) {
    110             String title = getString(R.string.guidedstep_second_title);
    111             String breadcrumb = getString(R.string.guidedstep_second_breadcrumb);
    112             String description = getString(R.string.guidedstep_second_description);
    113             final Context context = getActivity();
    114             Drawable icon = ResourcesCompat.getDrawable(context.getResources(),
    115                     R.drawable.ic_main_icon, context.getTheme());
    116             return new Guidance(title, description, breadcrumb, icon);
    117         }
    118 
    119         @Override
    120         public void onCreateActions(List<GuidedAction> actions, Bundle savedInstanceState) {
    121             Context context = getActivity();
    122             actions.add(new GuidedAction.Builder(context)
    123                     .clickAction(GuidedAction.ACTION_ID_FINISH)
    124                     .description("Done")
    125                     .build());
    126             actions.add(new GuidedAction.Builder(context)
    127                     .clickAction(GuidedAction.ACTION_ID_CANCEL)
    128                     .description("Never mind")
    129                     .build());
    130         }
    131 
    132         @Override
    133         public void onCreateButtonActions(List<GuidedAction> actions, Bundle savedInstanceState) {
    134             actions.add(new GuidedAction.Builder(getActivity())
    135                     .clickAction(GuidedAction.ACTION_ID_CANCEL)
    136                     .description("Cancel")
    137                     .build());
    138         }
    139 
    140         @Override
    141         public void onGuidedActionClicked(GuidedAction action) {
    142             FragmentManager fm = getFragmentManager();
    143             fm.popBackStack();
    144         }
    145     }
    146 }
    147