Utils.java

/* Copyright (c) 2013 Google Inc.
 *
 * 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.google.ytdl.util;

import android.app.Activity;
import android.content.res.Resources;
import android.os.Build;
import android.util.Log;
import android.widget.Toast;

import com.google.android.gms.auth.GoogleAuthException;
import com.google.api.client.googleapis.json.GoogleJsonError;
import com.google.api.client.googleapis.json.GoogleJsonResponseException;
import com.google.ytdl.R;

/**
 * Class containing some static utility methods.
 */
public class Utils {
    private Utils() {
    }

    public static boolean hasFroyo() {
        // Can use static final constants like FROYO, declared in later versions
        // of the OS since they are inlined at compile time. This is guaranteed behavior.
        return Build.VERSION.SDK_INT >= Build.VERSION_CODES.FROYO;
    }

    public static boolean hasGingerbread() {
        return Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD;
    }

    public static boolean hasHoneycomb() {
        return Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB;
    }

    public static boolean hasHoneycombMR1() {
        return Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR1;
    }

    public static boolean hasJellyBean() {
        return Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN;
    }

    /**
     * Logs the given throwable and shows an error alert dialog with its message.
     *
     * @param activity activity
     * @param tag      log tag to use
     * @param t        throwable to log and show
     */
    public static void logAndShow(Activity activity, String tag, Throwable t) {
        Log.e(tag, "Error", t);
        String message = t.getMessage();
        if (t instanceof GoogleJsonResponseException) {
            GoogleJsonError details = ((GoogleJsonResponseException) t).getDetails();
            if (details != null) {
                message = details.getMessage();
            }
        } else if (t.getCause() instanceof GoogleAuthException) {
            message = ((GoogleAuthException) t.getCause()).getMessage();
        }
        showError(activity, message);
    }

    /**
     * Logs the given message and shows an error alert dialog with it.
     *
     * @param activity activity
     * @param tag      log tag to use
     * @param message  message to log and show or {@code null} for none
     */
    public static void logAndShowError(Activity activity, String tag, String message) {
        String errorMessage = getErrorMessage(activity, message);
        Log.e(tag, errorMessage);
        showErrorInternal(activity, errorMessage);
    }

    /**
     * Shows an error alert dialog with the given message.
     *
     * @param activity activity
     * @param message  message to show or {@code null} for none
     */
    public static void showError(Activity activity, String message) {
        String errorMessage = getErrorMessage(activity, message);
        showErrorInternal(activity, errorMessage);
    }

    private static void showErrorInternal(final Activity activity, final String errorMessage) {
        activity.runOnUiThread(new Runnable() {
            public void run() {
                Toast.makeText(activity, errorMessage, Toast.LENGTH_LONG).show();
            }
        });
    }

    private static String getErrorMessage(Activity activity, String message) {
        Resources resources = activity.getResources();
        if (message == null) {
            return resources.getString(R.string.error);
        }
        return resources.getString(R.string.error_format, message);
    }
}