106 lines
3.8 KiB
Java
106 lines
3.8 KiB
Java
/*
|
|
* Copyright (C) 2018 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
package com.example.android.intentplayground;
|
|
|
|
import android.content.Context;
|
|
import android.view.LayoutInflater;
|
|
import android.view.View;
|
|
import android.view.ViewGroup;
|
|
import android.widget.Button;
|
|
import android.widget.TextView;
|
|
|
|
import androidx.viewpager.widget.PagerAdapter;
|
|
|
|
import java.util.List;
|
|
|
|
/**
|
|
* A {@link PagerAdapter} for {@link ShowcaseFragment} that handles the creation of Views based
|
|
* on a list of {@link com.example.android.intentplayground.ShowcaseFragment.Step}.
|
|
*/
|
|
class StepAdapter extends PagerAdapter {
|
|
private final Context mContext;
|
|
private View.OnClickListener mNextCallback;
|
|
private View.OnClickListener mCancelCallback;
|
|
private View.OnClickListener mFinishCallback;
|
|
private List<ShowcaseFragment.Step> mSteps;
|
|
private LayoutInflater mInflater;
|
|
|
|
/**
|
|
* Constructs a new StepAdapter.
|
|
* @param context The context that holds this adapter.
|
|
* @param steps A list of {@link com.example.android.intentplayground.ShowcaseFragment.Step}s
|
|
*/
|
|
public StepAdapter(Context context, List<ShowcaseFragment.Step> steps) {
|
|
mContext = context;
|
|
mSteps = steps;
|
|
mInflater = LayoutInflater.from(mContext);
|
|
}
|
|
|
|
/**
|
|
* Set the callbacks to be run when pager buttons are clicked.
|
|
* @param finish The method to run when the finish action is requested.
|
|
* @param cancel The method to run when the cancel action is requested.
|
|
* @param next The method to run when the next action is requested.
|
|
*/
|
|
public void setButtonCallbacks(View.OnClickListener finish, View.OnClickListener cancel,
|
|
View.OnClickListener next) {
|
|
mFinishCallback = finish;
|
|
mCancelCallback = cancel;
|
|
mNextCallback = next;
|
|
}
|
|
|
|
@Override
|
|
public Object instantiateItem(ViewGroup container, int position) {
|
|
ShowcaseFragment.Step currentStep = getStep(position);
|
|
ViewGroup skeletonLayout = (ViewGroup) mInflater
|
|
.inflate(R.layout.showcase_skeleton, container, false /* attachToRoot */);
|
|
TextView tutorialText = skeletonLayout.findViewById(R.id.tutorial_text);
|
|
tutorialText.setText(mContext.getString(currentStep.tutorialText));
|
|
Button cancelButton = skeletonLayout.findViewById(R.id.cancel_pager);
|
|
Button nextButton = skeletonLayout.findViewById(R.id.next_pager);
|
|
if (position == getCount() - 1) {
|
|
// last item, adjust button bar
|
|
cancelButton.setVisibility(View.GONE);
|
|
nextButton.setText(R.string.help_step_finish);
|
|
nextButton.setOnClickListener(mFinishCallback);
|
|
} else {
|
|
cancelButton.setOnClickListener(mCancelCallback);
|
|
nextButton.setOnClickListener(mNextCallback);
|
|
}
|
|
container.addView(skeletonLayout);
|
|
return skeletonLayout;
|
|
}
|
|
|
|
@Override
|
|
public void destroyItem(ViewGroup container, int position, Object view) {
|
|
container.removeView((View) view);
|
|
}
|
|
|
|
public ShowcaseFragment.Step getStep(int i) {
|
|
return mSteps.get(i);
|
|
}
|
|
|
|
@Override
|
|
public int getCount() {
|
|
return mSteps.size();
|
|
}
|
|
|
|
@Override
|
|
public boolean isViewFromObject(View view, Object o) {
|
|
return view.equals(o);
|
|
}
|
|
}
|