Java tutorial
/* * Copyright (c) 2015 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.aengbee.android.leanback.presenter; import android.content.res.Resources; import android.graphics.Color; import android.support.v17.leanback.widget.Presenter; import android.support.v4.content.ContextCompat; import android.view.Gravity; import android.view.ViewGroup; import android.widget.TextView; import com.aengbee.android.leanback.R; import com.aengbee.android.leanback.ui.MainFragment; public class GridItemPresenter extends Presenter { private final MainFragment mainFragment; public GridItemPresenter(MainFragment mainFragment) { this.mainFragment = mainFragment; } @Override public ViewHolder onCreateViewHolder(ViewGroup parent) { TextView view = new TextView(parent.getContext()); Resources res = parent.getResources(); int width = res.getDimensionPixelSize(R.dimen.grid_item_width); int height = res.getDimensionPixelSize(R.dimen.grid_item_height); view.setLayoutParams(new ViewGroup.LayoutParams(width, height)); view.setFocusable(true); view.setFocusableInTouchMode(true); view.setBackgroundColor(ContextCompat.getColor(parent.getContext(), R.color.default_background)); view.setTextColor(Color.WHITE); view.setGravity(Gravity.CENTER); return new ViewHolder(view); } @Override public void onBindViewHolder(ViewHolder viewHolder, Object item) { ((TextView) viewHolder.view).setText((String) item); } @Override public void onUnbindViewHolder(ViewHolder viewHolder) { } }