我想在一秒内显示约30张照片,因此它们将显示为视频。在Android中显示连续图像
我在while(TRUE)循环中使用Android ImageView,但ImageView没有像我期望的那样变化。
的ImageView的改变图片的大约每秒,所以不知道是否有另一种方式来
表现出我的照片?
这些照片是从使用UDP照相机传送,并且我首先需要在缓冲液中和
比显示存储。
上述部分导致ImageView延迟。代码
部分是这样的
public void receiveVideoRawData() throws IOException{
socket_video = new DatagramSocket();
byte[] buf_rcv = new byte[153600];
DatagramPacket rawData = new DatagramPacket(buf_rcv, buf_rcv.length);
Bitmap image = null;
socket_video.receive(rawData);//receive a raw data
image = readMyRawData.readUINT_RGBImage(buf_rcv);//decode the raw data
ByteArrayOutputStream blob = new ByteArrayOutputStream();
Bitmap pBitmap = image ;
pBitmap.compress(Bitmap.CompressFormat.JPEG, 1, blob);
byte[] bitmapdata = blob.toByteArray();
ardrone_Frame = BitmapFactory.decodeByteArray(bitmapdata , 0, bitmapdata.length);
}
显示部分
Thread thread=new Thread (new Runnable() {
Message message;
String obj="run";
int i;
long start;
@Override
public void run() {
// TODO Auto-generated method stub
Log.e("///enter thread ","THREAD");
while(true){
try {
Log.e("enter_video_thread","enter_video_thread");
receiveVideoRawData();
Log.e("///receiveVideoRawData ","receiveVideoRawData");
message = handler.obtainMessage(1,obj);
handler.sendMessage(message);
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
});
public Handler handler = new Handler(){
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
String MsgString = (String)msg.obj;
if (MsgString.equals("run"))
{ Log.e("///enter handler ","HANDLER");
Toast.makeText(ArDroneMain.this,"save image ",Toast.LENGTH_SHORT).show();
//Bitmap bitmap = BitmapFactory.decodeFile(Environment.getExternalStorageDirectory()+ "/ArdroneVideo.jpg");
myImageView.setImageBitmap(ardrone_Frame); ///Show the image
Toast.makeText(ArDroneMain.this,"show image",Toast.LENGTH_SHORT).show();
}
}
};
代码为这些图像做ü要动态加载图像?或者它存储在res? – 2013-03-25 09:39:47
设置每个图像后,需要重新绘制'ImageView'。你能展示你目前使用的代码吗? – Tigger 2013-03-25 09:50:43