您好，遇到技术问题了，socket接收到的数据 刷新imageView问题

[lihan6415151528]

我这个是socket接收到的数据，并打印bitmap里面有数据了，长度，宽度，什么的都能获取到，但是就是不动态刷新imageView，这是为什么呢？

package com.freerdp.afreerdp.presentation;

import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.net.ServerSocket;
import java.net.Socket;

import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.drawable.BitmapDrawable;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;

import com.freerdp.afreerdp.R;

public class SpActivity  extends Activity implements  OnClickListener {

	private ImageView img ;
	private Button btn ;
	@Override
	public void onCreate(Bundle savedInstanceState){

		super.onCreate(savedInstanceState);
		setContentView(R.layout.sp);

		img  = (ImageView)findViewById(R.id.spms);
		btn = (Button)findViewById(R.id.kaishi);

		btn.setOnClickListener(this);
	}

	public  void receiveFile(Socket socket) {
		System.out.println("rrrrrrrrrrrrrrrrrrr11111111111111111");
		DataInputStream dis = null;
		ByteArrayOutputStream bytestream = null;
		try {
			try {
				dis = new DataInputStream(socket.getInputStream());

				final BitmapDrawable bmpDraw=new BitmapDrawable(socket.getInputStream());
				final Bitmap bmp=bmpDraw.getBitmap();
				System.out.println("rrrrrrrrrrrrrrrrrr  bmp==null??"+(bmp==null));
				System.out.println("rrrrrrrrrrrrrrrrrr  bmp==getHeight??"+bmp.getHeight());
				System.out.println("rrrrrrrrrrrrrrrrrr  bmp==getRowBytes??"+bmp.getRowBytes());
				System.out.println("rrrrrrrrrrrrr  run()....");
				SpActivity.this.runOnUiThread(new Runnable() {
					@Override
					public void run() {
						img.setImageBitmap(bmp);
						img.postInvalidate();
					}
				});

				// 如果图片还未回收，先强制回收该图片  
				if (bmpDraw != null && !bmpDraw.getBitmap().isRecycled()){  
					bmpDraw.getBitmap().recycle();  
				}  

			} finally {
				if (bytestream != null)
					bytestream.close();
				if (dis != null)
					dis.close();
				if (socket != null)
					socket.close();
			}
		} catch (Exception e) {

		}
	}

	@Override
	public void onClick(View arg0) {
		if(arg0.getId()==btn.getId()){
			try {
				final ServerSocket server = new ServerSocket(9999);
				Thread th = new Thread(new Runnable() {
					public void run() {
						while (true) {
							try {
								System.out.println("rrrrrrrrrrrrrrrrr开始监听...");
								Socket socket = server.accept();
								System.out.println("rrrrrrrrrrrrrrrrrrrr有链接");
								receiveFile(socket);
							} catch (Exception e) {
							}
						}
					}
				});

				th.run(); //启动线程运行
			} catch (Exception e) {
				e.printStackTrace();
			}
		}
	}

}

打印出来的结果 rrrrrrrrrrrrrrrrrr bmp==getHeight?? 768
但是，imageView就是不刷新，为什么呢

[renhuihhh]

貌似像这种情况就得用surfaceView了

[--纯技术领域--]

刷新view的操作别放到线程里.

[huanai2000]

楼主，结果如何。

[victor_lgw]

final BitmapDrawable bmpDraw=new BitmapDrawable(socket.getInputStream());参数里加个TRUE试试 final BitmapDrawable bmpDraw=new BitmapDrawable(socket.getInputStream(),true);

[lionfresh]

楼主，4.0以后不能在子线程中更新UI了，所以你可以在子线程给UI线程发消息，让UI线程自己更新。