ImageView.setImageDrawable在LANDSCAPE模式下不起作用

Question

我正在編寫套接字客戶端應用程序。

應用程序很樣例，Activty啓動一個新的套接字線程來連接服務器。從服務器線程recive命令並通過setImageDrawable更改ImageView。

佈局中只有一個ImageView。套接字線程將使用BufferedReader從服務器獲取命令，它的命令行是「start」，套接字線程將向main活動發送消息以執行setImageDrawable。

這是我的問題： 在PORTRAIT模式下一切都可以。但在景觀模式下做了很多工作。

1. 在PORTRAIT模式下一切都可以。在imageview中更改圖片。
2. 當應用程序工作在LANDSCAPE模式。 imageview.setImageDrawable在主要活動將不會工作的消息從套接字線程發送，當且僅當「新套接字線程」 - >「BufferedReader」 - >「開關」
3. imageview.setImageDrawable已被執行，沒有錯誤，它只是不工作

打擊是佈局：

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 android.app.Activity; 
import android.content.pm.ActivityInfo; 
import android.os.Bundle; 
import android.os.Handler; 
import android.os.Message; 
import android.widget.ImageView; 
import android.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(); 

    } 

} 

下面是佈局

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

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

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

</RelativeLayout> 

這裏是server.java

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); 
     } 

    } 
} 

我已經爲它工作了三天。請幫幫我。

Answer 1

嘗試增加在清單文件中這一行，活動下你在：

android:configChanges="orientation|screenSize"