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Android example source code file (ContentType.java)

This example Android source code file (ContentType.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" TM.

Java - Android tags/keywords

arraylist, audio_mid, audio_mpg, audio_ogg, audio_unspecified, audio_x_midi, audio_x_mp3, contenttype, mms_generic, string, suppresswarnings, text_plain, util, video_3g2, video_unspecified

The ContentType.java Android example source code

/*
 * Copyright (C) 2007-2008 Esmertec AG.
 * Copyright (C) 2007-2008 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.google.android.mms;

import java.util.ArrayList;

public class ContentType {
    public static final String MMS_MESSAGE       = "application/vnd.wap.mms-message";
    // The phony content type for generic PDUs (e.g. ReadOrig.ind,
    // Notification.ind, Delivery.ind).
    public static final String MMS_GENERIC       = "application/vnd.wap.mms-generic";
    public static final String MULTIPART_MIXED   = "application/vnd.wap.multipart.mixed";
    public static final String MULTIPART_RELATED = "application/vnd.wap.multipart.related";
    public static final String MULTIPART_ALTERNATIVE = "application/vnd.wap.multipart.alternative";

    public static final String TEXT_PLAIN        = "text/plain";
    public static final String TEXT_HTML         = "text/html";
    public static final String TEXT_VCALENDAR    = "text/x-vCalendar";
    public static final String TEXT_VCARD        = "text/x-vCard";

    public static final String IMAGE_UNSPECIFIED = "image/*";
    public static final String IMAGE_JPEG        = "image/jpeg";
    public static final String IMAGE_JPG         = "image/jpg";
    public static final String IMAGE_GIF         = "image/gif";
    public static final String IMAGE_WBMP        = "image/vnd.wap.wbmp";
    public static final String IMAGE_PNG         = "image/png";

    public static final String AUDIO_UNSPECIFIED = "audio/*";
    public static final String AUDIO_AAC         = "audio/aac";
    public static final String AUDIO_AMR         = "audio/amr";
    public static final String AUDIO_IMELODY     = "audio/imelody";
    public static final String AUDIO_MID         = "audio/mid";
    public static final String AUDIO_MIDI        = "audio/midi";
    public static final String AUDIO_MP3         = "audio/mp3";
    public static final String AUDIO_MPEG3       = "audio/mpeg3";
    public static final String AUDIO_MPEG        = "audio/mpeg";
    public static final String AUDIO_MPG         = "audio/mpg";
    public static final String AUDIO_MP4         = "audio/mp4";
    public static final String AUDIO_X_MID       = "audio/x-mid";
    public static final String AUDIO_X_MIDI      = "audio/x-midi";
    public static final String AUDIO_X_MP3       = "audio/x-mp3";
    public static final String AUDIO_X_MPEG3     = "audio/x-mpeg3";
    public static final String AUDIO_X_MPEG      = "audio/x-mpeg";
    public static final String AUDIO_X_MPG       = "audio/x-mpg";
    public static final String AUDIO_3GPP        = "audio/3gpp";
    public static final String AUDIO_OGG         = "application/ogg";

    public static final String VIDEO_UNSPECIFIED = "video/*";
    public static final String VIDEO_3GPP        = "video/3gpp";
    public static final String VIDEO_3G2         = "video/3gpp2";
    public static final String VIDEO_H263        = "video/h263";
    public static final String VIDEO_MP4         = "video/mp4";

    public static final String APP_SMIL          = "application/smil";
    public static final String APP_WAP_XHTML     = "application/vnd.wap.xhtml+xml";
    public static final String APP_XHTML         = "application/xhtml+xml";

    public static final String APP_DRM_CONTENT   = "application/vnd.oma.drm.content";
    public static final String APP_DRM_MESSAGE   = "application/vnd.oma.drm.message";

    private static final ArrayList<String> sSupportedContentTypes = new ArrayList();
    private static final ArrayList<String> sSupportedImageTypes = new ArrayList();
    private static final ArrayList<String> sSupportedAudioTypes = new ArrayList();
    private static final ArrayList<String> sSupportedVideoTypes = new ArrayList();

    static {
        sSupportedContentTypes.add(TEXT_PLAIN);
        sSupportedContentTypes.add(TEXT_HTML);
        sSupportedContentTypes.add(TEXT_VCALENDAR);
        sSupportedContentTypes.add(TEXT_VCARD);

        sSupportedContentTypes.add(IMAGE_JPEG);
        sSupportedContentTypes.add(IMAGE_GIF);
        sSupportedContentTypes.add(IMAGE_WBMP);
        sSupportedContentTypes.add(IMAGE_PNG);
        sSupportedContentTypes.add(IMAGE_JPG);
        //supportedContentTypes.add(IMAGE_SVG); not yet supported.

        sSupportedContentTypes.add(AUDIO_AAC);
        sSupportedContentTypes.add(AUDIO_AMR);
        sSupportedContentTypes.add(AUDIO_IMELODY);
        sSupportedContentTypes.add(AUDIO_MID);
        sSupportedContentTypes.add(AUDIO_MIDI);
        sSupportedContentTypes.add(AUDIO_MP3);
        sSupportedContentTypes.add(AUDIO_MPEG3);
        sSupportedContentTypes.add(AUDIO_MPEG);
        sSupportedContentTypes.add(AUDIO_MPG);
        sSupportedContentTypes.add(AUDIO_X_MID);
        sSupportedContentTypes.add(AUDIO_X_MIDI);
        sSupportedContentTypes.add(AUDIO_X_MP3);
        sSupportedContentTypes.add(AUDIO_X_MPEG3);
        sSupportedContentTypes.add(AUDIO_X_MPEG);
        sSupportedContentTypes.add(AUDIO_X_MPG);
        sSupportedContentTypes.add(AUDIO_3GPP);
        sSupportedContentTypes.add(AUDIO_OGG);

        sSupportedContentTypes.add(VIDEO_3GPP);
        sSupportedContentTypes.add(VIDEO_3G2);
        sSupportedContentTypes.add(VIDEO_H263);
        sSupportedContentTypes.add(VIDEO_MP4);

        sSupportedContentTypes.add(APP_SMIL);
        sSupportedContentTypes.add(APP_WAP_XHTML);
        sSupportedContentTypes.add(APP_XHTML);

        sSupportedContentTypes.add(APP_DRM_CONTENT);
        sSupportedContentTypes.add(APP_DRM_MESSAGE);

        // add supported image types
        sSupportedImageTypes.add(IMAGE_JPEG);
        sSupportedImageTypes.add(IMAGE_GIF);
        sSupportedImageTypes.add(IMAGE_WBMP);
        sSupportedImageTypes.add(IMAGE_PNG);
        sSupportedImageTypes.add(IMAGE_JPG);

        // add supported audio types
        sSupportedAudioTypes.add(AUDIO_AAC);
        sSupportedAudioTypes.add(AUDIO_AMR);
        sSupportedAudioTypes.add(AUDIO_IMELODY);
        sSupportedAudioTypes.add(AUDIO_MID);
        sSupportedAudioTypes.add(AUDIO_MIDI);
        sSupportedAudioTypes.add(AUDIO_MP3);
        sSupportedAudioTypes.add(AUDIO_MPEG3);
        sSupportedAudioTypes.add(AUDIO_MPEG);
        sSupportedAudioTypes.add(AUDIO_MPG);
        sSupportedAudioTypes.add(AUDIO_MP4);
        sSupportedAudioTypes.add(AUDIO_X_MID);
        sSupportedAudioTypes.add(AUDIO_X_MIDI);
        sSupportedAudioTypes.add(AUDIO_X_MP3);
        sSupportedAudioTypes.add(AUDIO_X_MPEG3);
        sSupportedAudioTypes.add(AUDIO_X_MPEG);
        sSupportedAudioTypes.add(AUDIO_X_MPG);
        sSupportedAudioTypes.add(AUDIO_3GPP);
        sSupportedAudioTypes.add(AUDIO_OGG);

        // add supported video types
        sSupportedVideoTypes.add(VIDEO_3GPP);
        sSupportedVideoTypes.add(VIDEO_3G2);
        sSupportedVideoTypes.add(VIDEO_H263);
        sSupportedVideoTypes.add(VIDEO_MP4);
    }

    // This class should never be instantiated.
    private ContentType() {
    }

    public static boolean isSupportedType(String contentType) {
        return (null != contentType) && sSupportedContentTypes.contains(contentType);
    }

    public static boolean isSupportedImageType(String contentType) {
        return isImageType(contentType) && isSupportedType(contentType);
    }

    public static boolean isSupportedAudioType(String contentType) {
        return isAudioType(contentType) && isSupportedType(contentType);
    }

    public static boolean isSupportedVideoType(String contentType) {
        return isVideoType(contentType) && isSupportedType(contentType);
    }

    public static boolean isTextType(String contentType) {
        return (null != contentType) && contentType.startsWith("text/");
    }

    public static boolean isImageType(String contentType) {
        return (null != contentType) && contentType.startsWith("image/");
    }

    public static boolean isAudioType(String contentType) {
        return (null != contentType) && contentType.startsWith("audio/");
    }

    public static boolean isVideoType(String contentType) {
        return (null != contentType) && contentType.startsWith("video/");
    }

    public static boolean isDrmType(String contentType) {
        return (null != contentType)
                && (contentType.equals(APP_DRM_CONTENT)
                        || contentType.equals(APP_DRM_MESSAGE));
    }

    public static boolean isUnspecified(String contentType) {
        return (null != contentType) && contentType.endsWith("*");
    }

    @SuppressWarnings("unchecked")
    public static ArrayList<String> getImageTypes() {
        return (ArrayList<String>) sSupportedImageTypes.clone();
    }

    @SuppressWarnings("unchecked")
    public static ArrayList<String> getAudioTypes() {
        return (ArrayList<String>) sSupportedAudioTypes.clone();
    }

    @SuppressWarnings("unchecked")
    public static ArrayList<String> getVideoTypes() {
        return (ArrayList<String>) sSupportedVideoTypes.clone();
    }

    @SuppressWarnings("unchecked")
    public static ArrayList<String> getSupportedTypes() {
        return (ArrayList<String>) sSupportedContentTypes.clone();
    }
}

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