PasswordRequirementAdapter.java

/*
 * Copyright (C) 2016 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.android.settings.password;

import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import com.android.settings.R;

import static com.android.settings.password.PasswordRequirementAdapter
        .PasswordRequirementViewHolder;

/**
 * Used in {@link com.android.settings.ChooseLockPassword} to show password requirements.
 */
public class PasswordRequirementAdapter extends
        RecyclerView.Adapter<PasswordRequirementViewHolder> {
    private String[] mRequirements;

    public PasswordRequirementAdapter() {
        setHasStableIds(true);
    }

    @Override
    public PasswordRequirementViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View v = LayoutInflater.from(parent.getContext())
                .inflate(R.layout.password_requirement_item, parent, false);
        return new PasswordRequirementViewHolder(v);
    }

    @Override
    public int getItemCount() {
        return  mRequirements.length;
    }

    public void setRequirements(String[] requirements) {
        mRequirements = requirements;
        notifyDataSetChanged();
    }

    @Override
    public long getItemId(int position) {
        return mRequirements[position].hashCode();
    }

    @Override
    public void onBindViewHolder(PasswordRequirementViewHolder holder, int position) {
        holder.mDescriptionText.setText(mRequirements[position]);
    }

    public static class PasswordRequirementViewHolder extends RecyclerView.ViewHolder {
        private TextView mDescriptionText;

        public PasswordRequirementViewHolder(View itemView) {
            super(itemView);
            mDescriptionText = (TextView) itemView;
        }
    }

}