src/com/android/launcher3/qsb/QsbWidgetHostView.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.launcher3.qsb;

import android.appwidget.AppWidgetHostView;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewDebug;
import android.view.ViewGroup;
import android.widget.RemoteViews;

import com.android.launcher3.Launcher;
import com.android.launcher3.R;

/**
 * Appwidget host view with QSB specific logic.
 */
public class QsbWidgetHostView extends AppWidgetHostView {

    @ViewDebug.ExportedProperty(category = "launcher")
    private int mPreviousOrientation;

    public QsbWidgetHostView(Context context) {
        super(context);
    }

    @Override
    public void updateAppWidget(RemoteViews remoteViews) {
        // Store the orientation in which the widget was inflated
        mPreviousOrientation = getResources().getConfiguration().orientation;
        super.updateAppWidget(remoteViews);
    }


    public boolean isReinflateRequired(int orientation) {
        // Re-inflate is required if the orientation has changed since last inflation.
        return mPreviousOrientation != orientation;
    }


    @Override
    protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
        try {
            super.onLayout(changed, left, top, right, bottom);
        } catch (final RuntimeException e) {
            post(new Runnable() {
                @Override
                public void run() {
                    // Update the widget with 0 Layout id, to reset the view to error view.
                    updateAppWidget(new RemoteViews(getAppWidgetInfo().provider.getPackageName(), 0));
                }
            });
        }
    }

    @Override
    protected View getErrorView() {
        return getDefaultView(this);
    }

    public static View getDefaultView(ViewGroup parent) {
        View v = LayoutInflater.from(parent.getContext())
                .inflate(R.layout.qsb_default_view, parent, false);
        v.findViewById(R.id.btn_qsb_search).setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View view) {
                Launcher.getLauncher(view.getContext()).startSearch("", false, null, true);
            }
        });
        return v;
    }
}