| /* |
| * Copyright (C) 2013 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.leanback; |
| |
| import android.support.v7.widget.RecyclerView; |
| import android.support.v17.leanback.widget.HorizontalGridView; |
| import android.support.v17.leanback.widget.OnChildSelectedListener; |
| import android.app.Activity; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.graphics.BitmapFactory; |
| import android.graphics.Color; |
| import android.graphics.drawable.ColorDrawable; |
| import android.graphics.drawable.Drawable; |
| import android.net.Uri; |
| import android.os.Bundle; |
| import android.util.Log; |
| import android.util.SparseArray; |
| import android.view.MotionEvent; |
| import android.view.View; |
| import android.view.View.OnClickListener; |
| import android.view.View.OnFocusChangeListener; |
| import android.view.ViewGroup; |
| import android.widget.ImageView; |
| import android.widget.TextView; |
| |
| import java.io.File; |
| |
| public class HorizontalGridTestActivity extends Activity { |
| private static final String TAG = "HorizontalGridTestActivity"; |
| private static final boolean DEBUG = true; |
| private static final String SELECT_ACTION = "android.test.leanback.widget.SELECT"; |
| private static final int NUM_ITEMS = 100; |
| private static final boolean STAGGERED = true; |
| |
| private HorizontalGridView mHorizontalGridView; |
| private int mScrollState = RecyclerView.SCROLL_STATE_IDLE; |
| |
| private RecyclerView.OnScrollListener mScrollListener = new RecyclerView.OnScrollListener() { |
| @Override |
| public void onScrollStateChanged(RecyclerView recyclerView, int newState) { |
| if (DEBUG) { |
| final String[] stateNames = { "IDLE", "DRAGGING", "SETTLING" }; |
| Log.v(TAG, "onScrollStateChanged " |
| + (newState < stateNames.length ? stateNames[newState] : newState)); |
| } |
| mScrollState = newState; |
| } |
| }; |
| |
| private View createView() { |
| View view = getLayoutInflater().inflate(R.layout.horizontal_grid, null, false); |
| mHorizontalGridView = (HorizontalGridView) view.findViewById(R.id.gridview); |
| |
| mHorizontalGridView.setWindowAlignment(HorizontalGridView.WINDOW_ALIGN_BOTH_EDGE); |
| mHorizontalGridView.setWindowAlignmentOffsetPercent(35); |
| mHorizontalGridView.setOnChildSelectedListener(new OnChildSelectedListener() { |
| @Override |
| public void onChildSelected(ViewGroup parent, View view, int position, long id) { |
| if (DEBUG) Log.d(TAG, "onChildSelected position=" + position + " id="+id); |
| } |
| }); |
| return view; |
| } |
| |
| @Override |
| protected void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| |
| if (DEBUG) Log.v(TAG, "onCreate"); |
| |
| RecyclerView.Adapter adapter = new MyAdapter(); |
| |
| View view = createView(); |
| |
| mHorizontalGridView.setAdapter(new MyAdapter()); |
| setContentView(view); |
| |
| mHorizontalGridView.setOnScrollListener(mScrollListener); |
| } |
| |
| @Override |
| protected void onNewIntent(Intent intent) { |
| if (DEBUG) Log.v(TAG, "onNewIntent " + intent); |
| if (intent.getAction().equals(SELECT_ACTION)) { |
| int position = intent.getIntExtra("SELECT_POSITION", -1); |
| if (position >= 0) { |
| mHorizontalGridView.setSelectedPosition(position); |
| } |
| } |
| super.onNewIntent(intent); |
| } |
| |
| private OnFocusChangeListener mItemFocusChangeListener = new OnFocusChangeListener() { |
| |
| @Override |
| public void onFocusChange(View v, boolean hasFocus) { |
| if (hasFocus) { |
| v.setBackgroundColor(Color.YELLOW); |
| } else { |
| v.setBackgroundColor(Color.LTGRAY); |
| } |
| } |
| }; |
| |
| private OnClickListener mItemClickListener = new OnClickListener() { |
| @Override |
| public void onClick(View v) { |
| mHorizontalGridView.getAdapter().notifyDataSetChanged(); |
| } |
| }; |
| |
| class MyAdapter extends RecyclerView.Adapter { |
| |
| private int[] mItemLengths; |
| |
| MyAdapter() { |
| mItemLengths = new int[NUM_ITEMS]; |
| for (int i = 0; i < mItemLengths.length; i++) { |
| mItemLengths[i] = STAGGERED ? (int)(Math.random() * 180) + 180 : 240; |
| } |
| } |
| |
| @Override |
| public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { |
| if (DEBUG) Log.v(TAG, "createViewHolder " + viewType); |
| TextView textView = new TextView(parent.getContext()); |
| textView.setTextColor(Color.BLACK); |
| textView.setFocusable(true); |
| textView.setFocusableInTouchMode(true); |
| textView.setOnFocusChangeListener(mItemFocusChangeListener); |
| textView.setOnClickListener(mItemClickListener); |
| return new ViewHolder(textView); |
| } |
| |
| @Override |
| public void onBindViewHolder(RecyclerView.ViewHolder baseHolder, int position) { |
| if (DEBUG) Log.v(TAG, "bindViewHolder " + position + " " + baseHolder); |
| ViewHolder holder = (ViewHolder) baseHolder; |
| ((TextView) holder.itemView).setText("Item "+position); |
| holder.itemView.setBackgroundColor(Color.LTGRAY); |
| holder.itemView.setLayoutParams(new ViewGroup.MarginLayoutParams(mItemLengths[position], |
| 80)); |
| } |
| |
| @Override |
| public int getItemCount() { |
| return mItemLengths.length; |
| } |
| } |
| |
| static class ViewHolder extends RecyclerView.ViewHolder { |
| |
| public ViewHolder(View v) { |
| super(v); |
| } |
| } |
| } |