JavaImageView。setImageDrawable在横向模式下不工作

Question

我正在编写一个socket客户端应用程序

应用程序非常简单，可以启动一个新的socket线程来连接服务器。线程从服务器接收命令并通过setImageDrawable更改ImageView

布局中只有一个ImageView。socket线程将使用BufferedReader从服务器获取命令，它的命令行是“开始”，socket线程将向主活动发送消息以执行setImageDrawable

我的问题是： 肖像模式下一切正常。但在景观模式下不起作用

1. 肖像模式下一切正常。图片已在imageview中更改
2. 当应用程序以横向模式工作时。imageview。当且仅当“新socket线程”->；时，主活动中的setImageDrawable将无法通过从socket线程发送的消息工作BufferedReader“->；”swith“
3. imageview。setImageDrawable已经执行，没有错误，只是不工作

吹扫布局：

    package com.example.whiletest;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;
import java.net.SocketTimeoutException;

import 安卓.app.Activity;
import 安卓.content.pm.ActivityInfo;
import 安卓.os.Bundle;
import 安卓.os.Handler;
import 安卓.os.Message;
import 安卓.widget.ImageView;
import 安卓.widget.TextView;


public class WhileTest extends Activity {

    private ImageView ivTest;
    private TextView tvState;
    private Handler handler = null;
    private String strTemp; 

    private Message message=new Message();



    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        /* set app to LANDSCAPE mode  */
        this.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);

        setContentView(R.layout.activity_while_test);
        tvState = (TextView) findViewById(R.id.textView1);
        ivTest = (ImageView) findViewById(R.id.imageView1);

        /* Change UI by main activity*/
        handler = new Handler() { 
            public void handleMessage(Message msg) { 
            switch (msg.what) { 
                case 110: 
                    ivTest.setImageDrawable(getResources().getDrawable(R.drawable.btn_camera_recording));
                    ivTest.postInvalidate();
                    System.out.println("OKAYAYHHAHS");
                break;
                case 112:
                    tvState.setText("收到指令  = " + strTemp);
                break;
            } 
            super.handleMessage(msg); 
            } 
            };



        new Thread(){
            @Override

            public void run()
            {
                Socket socketNet;
                  try{

                    socketNet = new Socket("192.168.2.104",3302);       //make connection
                    System.out.println("Connected!!!");

                    BufferedReader bff=new BufferedReader(new InputStreamReader(socketNet.getInputStream()));
                    PrintWriter os=new PrintWriter(socketNet.getOutputStream());

                    while ((strTemp = bff.readLine()) != null){  

                        //got command from server then send message to main activity
                        System.out.println("readLine = " + strTemp);
                        message.what=112;
                        handler.sendMessage(message);

                        if( strTemp.equals("start")){

                            message.what=110; 
                            handler.sendMessage(message);

                        }
                    };

                } catch (SocketTimeoutException aa) {
                    System.out.println("TimeOut");
                }catch (Exception e){   
                    e.printStackTrace();
                }
            }
         }.start();

    }

}

下面是布局图

    <RelativeLayout xmlns:安卓="http://schemas.安卓.com/apk/res/安卓"
    xmlns:tools="http://schemas.安卓.com/tools"
    安卓:layout_width="match_parent"
    安卓:layout_height="match_parent"
    安卓:paddingBottom="@dimen/activity_vertical_margin"
    安卓:paddingLeft="@dimen/activity_horizontal_margin"
    安卓:paddingRight="@dimen/activity_horizontal_margin"
    安卓:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.whiletest.WhileTest" >

    <TextView
        安卓:id="@+id/textView1"
        安卓:layout_width="wrap_content"
        安卓:layout_height="wrap_content"
        安卓:text="@string/hello_world" />

    <ImageView
        安卓:id="@+id/imageView1"
        安卓:layout_width="wrap_content"
        安卓:layout_height="wrap_content"
        安卓:layout_alignParentRight="true"
        安卓:layout_alignParentTop="true"
        安卓:layout_marginRight="138dp"
        安卓:layout_marginTop="163dp"
        安卓:src="@drawable/ic_launcher" />

</RelativeLayout>

这是服务器。爪哇

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Timer;
import java.util.TimerTask;



public class Server{

    public static void main(String args[]) {

        try{
            ServerSocket server=null;
            try{    
                server=new ServerSocket(3302);
            }catch(Exception e) {
                System.out.println("can not listen to:"+e);
            }

            Socket socket=null;
            try{
                socket=server.accept();
                System.out.println("accepted.");
            }catch(Exception e) {
                System.out.println("Error."+e);
            }

            String line="start";
            BufferedReader is=new BufferedReader(new InputStreamReader(socket.getInputStream()));
            final PrintWriter os=new PrintWriter(socket.getOutputStream());

            Timer timer=new Timer();
            timer.schedule(new TimerTask(){
                public void run() {
                    os.println("start");
                    os.flush();
                    //System.out.println("Command Sended" + String.valueOf(System.currentTimeMillis()));
                }
            } , 1000, 1000);

        }catch(Exception e){
            System.out.println("Error:"+e);
        }

    }
}

我已经做了30天了。请帮帮我

Answer 1

请尝试在清单文件中的“活动”下添加此行：

android:configChanges="orientation|screenSize"