| /* |
| * 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.android.launcher3.widget; |
| |
| import android.annotation.TargetApi; |
| import android.content.Context; |
| import android.content.pm.ResolveInfo; |
| import android.os.Build; |
| import android.support.v7.widget.RecyclerView; |
| import android.content.res.Resources; |
| import android.support.v7.widget.RecyclerView.Adapter; |
| import android.util.Log; |
| import android.view.LayoutInflater; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.view.ViewGroup.LayoutParams; |
| import android.view.ViewGroup.MarginLayoutParams; |
| import android.widget.LinearLayout; |
| import com.android.launcher3.BubbleTextView; |
| import com.android.launcher3.DeviceProfile; |
| import com.android.launcher3.DynamicGrid; |
| import com.android.launcher3.IconCache; |
| import com.android.launcher3.Launcher; |
| import com.android.launcher3.LauncherAppState; |
| import com.android.launcher3.LauncherAppWidgetProviderInfo; |
| import com.android.launcher3.R; |
| import com.android.launcher3.WidgetPreviewLoader; |
| import java.util.List; |
| |
| /** |
| * List view adapter for the widget tray. |
| * |
| * <p>Memory vs. Performance: |
| * The less number of types of views are inserted into a {@link RecyclerView}, the more recycling |
| * happens and less memory is consumed. {@link #getItemViewType} was not overridden as there is |
| * only a single type of view. |
| */ |
| public class WidgetsListAdapter extends Adapter<WidgetsRowViewHolder> { |
| |
| private static final String TAG = "WidgetsListAdapter"; |
| private static final boolean DEBUG = true; |
| |
| private Context mContext; |
| private Launcher mLauncher; |
| private LayoutInflater mLayoutInflater; |
| private IconCache mIconCache; |
| |
| private WidgetsModel mWidgetsModel; |
| private WidgetPreviewLoader mWidgetPreviewLoader; |
| |
| private View.OnClickListener mIconClickListener; |
| private View.OnLongClickListener mIconLongClickListener; |
| |
| private static final int PRESET_INDENT_SIZE_TABLET = 56; |
| private int mIndent = 0; |
| |
| public WidgetsListAdapter(Context context, |
| View.OnClickListener iconClickListener, |
| View.OnLongClickListener iconLongClickListener, |
| Launcher launcher) { |
| mLayoutInflater = LayoutInflater.from(context); |
| mContext = context; |
| |
| mIconClickListener = iconClickListener; |
| mIconLongClickListener = iconLongClickListener; |
| |
| mLauncher = launcher; |
| mIconCache = LauncherAppState.getInstance().getIconCache(); |
| |
| setContainerHeight(); |
| } |
| |
| public void setWidgetsModel(WidgetsModel w) { |
| mWidgetsModel = w; |
| } |
| |
| @Override |
| public int getItemCount() { |
| return mWidgetsModel.getPackageSize(); |
| } |
| |
| @Override |
| public void onBindViewHolder(WidgetsRowViewHolder holder, int pos) { |
| List<Object> infoList = mWidgetsModel.getSortedWidgets(pos); |
| |
| ViewGroup row = ((ViewGroup) holder.getContent().findViewById(R.id.widgets_cell_list)); |
| if (DEBUG) { |
| Log.d(TAG, String.format( |
| "onBindViewHolder [pos=%d, widget#=%d, row.getChildCount=%d]", |
| pos, infoList.size(), row.getChildCount())); |
| } |
| |
| // Add more views. |
| // if there are too many, hide them. |
| int diff = infoList.size() - row.getChildCount(); |
| |
| if (diff > 0) { |
| for (int i = 0; i < diff; i++) { |
| WidgetCell widget = new WidgetCell(mContext); |
| widget = (WidgetCell) mLayoutInflater.inflate( |
| R.layout.widget_cell, row, false); |
| |
| // set up touch. |
| widget.setOnClickListener(mIconClickListener); |
| widget.setOnLongClickListener(mIconLongClickListener); |
| LayoutParams lp = widget.getLayoutParams(); |
| lp.height = widget.cellSize; |
| lp.width = widget.cellSize; |
| widget.setLayoutParams(lp); |
| |
| row.addView(widget); |
| } |
| } else if (diff < 0) { |
| for (int i=infoList.size() ; i < row.getChildCount(); i++) { |
| row.getChildAt(i).setVisibility(View.GONE); |
| } |
| } |
| |
| // Bind the views in the application info section. |
| PackageItemInfo infoOut = mWidgetsModel.getPackageItemInfo(pos); |
| BubbleTextView tv = ((BubbleTextView) holder.getContent().findViewById(R.id.section)); |
| tv.applyFromPackageItemInfo(infoOut); |
| |
| // Bind the view in the widget horizontal tray region. |
| for (int i=0; i < infoList.size(); i++) { |
| WidgetCell widget = (WidgetCell) row.getChildAt(i); |
| if (getWidgetPreviewLoader() == null) { |
| return; |
| } |
| if (infoList.get(i) instanceof LauncherAppWidgetProviderInfo) { |
| LauncherAppWidgetProviderInfo info = (LauncherAppWidgetProviderInfo) infoList.get(i); |
| PendingAddWidgetInfo pawi = new PendingAddWidgetInfo(info, null); |
| widget.setTag(pawi); |
| widget.applyFromAppWidgetProviderInfo(info, -1, mWidgetPreviewLoader); |
| } else if (infoList.get(i) instanceof ResolveInfo) { |
| ResolveInfo info = (ResolveInfo) infoList.get(i); |
| PendingAddShortcutInfo pasi = new PendingAddShortcutInfo(info.activityInfo); |
| widget.setTag(pasi); |
| widget.applyFromResolveInfo(mLauncher.getPackageManager(), info, mWidgetPreviewLoader); |
| } |
| widget.setVisibility(View.VISIBLE); |
| widget.ensurePreview(); |
| } |
| } |
| |
| @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1) |
| @Override |
| public WidgetsRowViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { |
| if (DEBUG) { |
| Log.v(TAG, "\nonCreateViewHolder"); |
| } |
| |
| ViewGroup container = (ViewGroup) mLayoutInflater.inflate( |
| R.layout.widgets_list_row_view, parent, false); |
| LinearLayout cellList = (LinearLayout) container.findViewById(R.id.widgets_cell_list); |
| MarginLayoutParams lp = (MarginLayoutParams) cellList.getLayoutParams(); |
| if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) { |
| lp.setMarginStart(mIndent); |
| } else { |
| lp.leftMargin = mIndent; |
| } |
| cellList.setLayoutParams(lp); |
| return new WidgetsRowViewHolder(container); |
| } |
| |
| @Override |
| public void onViewRecycled(WidgetsRowViewHolder holder) { |
| ViewGroup row = ((ViewGroup) holder.getContent().findViewById(R.id.widgets_cell_list)); |
| |
| for (int i = 0; i < row.getChildCount(); i++) { |
| WidgetCell widget = (WidgetCell) row.getChildAt(i); |
| widget.clear(); |
| } |
| } |
| |
| @Override |
| public long getItemId(int pos) { |
| return pos; |
| } |
| |
| private WidgetPreviewLoader getWidgetPreviewLoader() { |
| if (mWidgetPreviewLoader == null) { |
| mWidgetPreviewLoader = LauncherAppState.getInstance().getWidgetCache(); |
| } |
| return mWidgetPreviewLoader; |
| } |
| |
| private void setContainerHeight() { |
| Resources r = mContext.getResources(); |
| DeviceProfile profile = LauncherAppState.getInstance().getDynamicGrid().getDeviceProfile(); |
| if (profile.isLargeTablet || profile.isTablet) { |
| mIndent = DynamicGrid.pxFromDp(PRESET_INDENT_SIZE_TABLET, r.getDisplayMetrics()); |
| } |
| } |
| } |