Hello All,
I am trying to create a video player using a custom interface (with a
lot of images).
I am moving from J2ME to android apps.
In J2ME I just create a canvas and set the video to draw to the
canvas...
but now with android I am not able to do it...
So I have seen that I can create a View of my own and draw on it. So I
create a view, load images and create a video and a surface for the
video.
When I call videoSurface.draw() the application crashes.
So i tried to videoSurface.getDrawingCache() to get a bitmap and draw
it. But the bitmap is always null.
How can I do it?
Thanks,
The code is bellow
package com.example.helloandroid;
import java.io.IOException;
import java.util.ArrayList;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Picture;
import android.graphics.drawable.Drawable;
import android.media.MediaPlayer;
import android.os.Handler;
import android.os.Message;
import android.view.Surface;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.widget.TextView;
import android.widget.VideoView;
public class canvasView extends View{
Drawable fundo;
MediaPlayer mp;
SurfaceView mPreview;
VideoView mVideoView;
Bitmap drawVideo = null;
Paint mPaint = new Paint();
public canvasView(Context context) {
super(context);
// TODO Auto-generated constructor stub
int resID = getResources().getIdentifier
("com.example.helloandroid:drawable/fundo", null, null);
fundo = getResources().getDrawable(resID);
fundo.setBounds(0, 0, 480, 320);
mp = new MediaPlayer();
try {
mp.setDataSource("rtsp://10.223.246.33/broadcast/timtv/cnn.3gp");
mp.prepare();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
mPreview = new SurfaceView(this.getContext());
mp.setDisplay((SurfaceHolder) mPreview.getHolder());
mPreview.setDrawingCacheEnabled(true);
mp.start();
/* HEre is some test that I tried with VideoView
mVideoView = new VideoView(context);
mVideoView.setVideoPath("rtsp://10.223.246.33/broadcast/timtv/cnn.
3gp");
mVideoView.getHolder().setFixedSize(176, 144);
mVideoView.start();
mVideoView.buildDrawingCache();
ArrayList<View> array = new ArrayList<View>(1);
array.add(mVideoView);
this.addFocusables(array, 0);
mVideoView.requestFocus();
mVideoView.bringToFront();
*/
}
int runned = 0;
private RefreshHandler mRedrawHandler = new RefreshHandler();
class RefreshHandler extends Handler {
@Override
public void handleMessage(Message msg) {
canvasView.this.invalidate();
canvasView.this.update();
}
public void sleep(long delayMillis) {
this.removeMessages(0);
sendMessageDelayed(obtainMessage(0), delayMillis);
}
};
public void update(){
mPreview.buildDrawingCache();
drawVideo = mPreview.getDrawingCache();
mRedrawHandler.sleep(10);
}
public void onDraw(Canvas canvas) {
super.onDraw(canvas);
if(drawVideo!= null){
canvas.drawBitmap(drawVideo, 0,0, null);
mPreview.destroyDrawingCache();
canvas.drawText("not null", 100, 120, mPaint);
}
//mVideoView.draw(canvas);
}
}
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