Android 调用系统播放器，调用系统Camera

转载自：http://blog.csdn.net/yudajun/article/details/7752226

1、调用系统音乐播放器

 

private void playAudio(String audioPath){
        Intent intent = new Intent();
        intent.setAction(android.content.Intent.ACTION_VIEW);
        intent.setDataAndType(Uri.parse(audioPath), "audio/mp3");
        intent.setComponent(new ComponentName("com.android.music","com.android.music.MediaPlaybackActivity"));
        startActivity(intent);

    }

或者

Intent it = new Intent(Intent.ACTION_VIEW);
        it.setDataAndType(Uri.parse("/sdcard/111.mp3"), "audio/mp3");
        startActivity(it);

 

 

2、调用系统视频播放器

 

private void playVideo(String videoPath){
           Intent intent = new Intent(Intent.ACTION_VIEW);
           String strend="";
           if(videoPath.toLowerCase().endsWith(".mp4")){
               strend="mp4";
           }
           else if(videoPath.toLowerCase().endsWith(".3gp")){
               strend="3gp";
           }
           else if(videoPath.toLowerCase().endsWith(".mov")){
               strend="mov";
           }
           else if(videoPath.toLowerCase().endsWith(".wmv")){
               strend="wmv";
           }

           intent.setDataAndType(Uri.parse(videoPath), "video/"+strend);
           startActivity(intent);
       }

 

 

或者

 

Intent it = new Intent(Intent.ACTION_VIEW);
        it.setDataAndType(Uri.parse("/sdcard/1122.mp4"), "video/mp4");
        startActivity(it);

 

 

播放来自网络多媒体文件

 

String extension = MimeTypeMap.getFileExtensionFromUrl(url);
String mimeType = MimeTypeMap.getSingleton().getMimeTypeFromExtension(extension);
Intent mediaIntent = new Intent(Intent.ACTION_VIEW);
mediaIntent.setDataAndType(Uri.parse(url), mimeType);
startActivity(mediaIntent);

 

 

调用系统Camera 

 

public class SysCamera extends Activity {

    public static final int MEDIA_TYPE_IMAGE = 1;
    public static final int MEDIA_TYPE_VIDEO = 2;

    private static final int CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE = 100;
    private static final int CAPTURE_VIDEO_ACTIVITY_REQUEST_CODE = 200;

    private Uri fileUri;
    Button btvideo,btphoto;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.syscamera);

        btphoto=(Button)findViewById(R.id.sysPhoto);
        btvideo=(Button)findViewById(R.id.sysVideo);
        btphoto.setOnClickListener(new Monitor());
        btvideo.setOnClickListener(new Monitor());

    }

    private void PhotoIntent(){
         // create Intent to take a picture
        Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);

        fileUri = getOutputMediaFileUri(MEDIA_TYPE_IMAGE); // create a file to save the image
        intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri); // set the image file name
        // start the image capture Intent
        startActivityForResult(intent, CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE);
    }

    private void VideoIntent(){
         //create new Intent
        Intent intent = new Intent(MediaStore.ACTION_VIDEO_CAPTURE);

        fileUri = getOutputMediaFileUri(MEDIA_TYPE_VIDEO);  // create a file to save the video
        intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);  // set the image file name
        intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 1); // set the video image quality to high
        // start the Video Capture Intent
        startActivityForResult(intent, CAPTURE_VIDEO_ACTIVITY_REQUEST_CODE);
    }

    /** Create a file Uri for saving an image or video */
    private static Uri getOutputMediaFileUri(int type){
          return Uri.fromFile(getOutputMediaFile(type));
    }

    /** Create a File for saving an image or video */
    private static File getOutputMediaFile(int type){
        if (Environment.getExternalStorageState() == null){
            return null;
        }
        File mediaStorageDir = new File(Environment.getExternalStoragePublicDirectory(
                  Environment.DIRECTORY_PICTURES), "MyCameraApp");

        // Create the storage directory if it does not exist
        if (! mediaStorageDir.exists()){
            if (! mediaStorageDir.mkdirs()){
                Log.d("MyCameraApp", "failed to create directory");
                return null;
            }
        }

        // Create a media file name
        String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
        File mediaFile;
        if (type == MEDIA_TYPE_IMAGE){
            mediaFile = new File(mediaStorageDir.getPath() + File.separator +
            "IMG_"+ timeStamp + ".jpg");
        } else if(type == MEDIA_TYPE_VIDEO) {
            mediaFile = new File(mediaStorageDir.getPath() + File.separator +
            "VID_"+ timeStamp + ".mp4");
        } else {
            return null;
        }

        return mediaFile;
    }

     @Override
     public void onBackPressed() {
            Intent in=new Intent(this, MyRecorderActivity.class);
            startActivity(in);
            super.onBackPressed();
        }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (requestCode == CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE) {
            if (resultCode == RESULT_OK) {
                // Image captured and saved to fileUri specified in the Intent
                Toast.makeText(this, "Image saved to:\n" +
                         data.getData(), Toast.LENGTH_LONG).show();
            } else if (resultCode == RESULT_CANCELED) {
                // User cancelled the image capture
            } else {
                // Image capture failed, advise user
            }
        }

        if (requestCode == CAPTURE_VIDEO_ACTIVITY_REQUEST_CODE) {
            if (resultCode == RESULT_OK) {
                // Video captured and saved to fileUri specified in the Intent
                Toast.makeText(this, "Video saved to:\n" +
                         data.getData(), Toast.LENGTH_LONG).show();
            } else if (resultCode == RESULT_CANCELED) {
                // User cancelled the video capture
            } else {
                // Video capture failed, advise user
            }
        }
    }

    class Monitor implements OnClickListener{

        @Override
        public void onClick(View v) {

                switch(v.getId()){
                case R.id.sysPhoto:
                    PhotoIntent();
                    break;
                case R.id.sysVideo:
                    VideoIntent();
                    break;
                }
        }
    }
}