无法显示在聊天的朋友的名字名字、朋友

2023-09-04 03:52:50 作者:白井 泪子

我有问题,表现出对我的聊天的朋友的名字。该应用程序强制关闭每次运行显示朋友的名字。如果我评论了一部分朋友的名字,该消息可能会出现罚款。但是当我添加标签的名称,它得到了错误并强制关闭。我真的需要帮助,请人帮我。谢谢

json的一部分

 如果(!content.equals(空)){
                        尝试{
                            JSONArray jArr =新JSONArray(内容);

                             //字符串消息=;
                              的for(int i = 0; I< jArr.length();我++){
                                  的JSONObject jObj = jArr.getJSONObject(ⅰ);

                                     字符串名称= jObj.getString(名字);
                                     字符串消息= jObj.getString(信息);

                                     friendLabel.setText(名称);
                                     showMessage(消息,FALSE);
                              }
                        }赶上(JSONException E){
                            // TODO自动生成的catch块
                            e.printStackTrace();
                        }
                    }
                    其他{
                        Toast.makeText(ChatRoom.this,错误,Toast.LENGTH_LONG).show();
                     }
 

全code

  @覆盖
    保护无效的onCreate(包savedInstanceState){
        super.onCreate(savedInstanceState);
        的setContentView(R.layout.chatpage);

        messagesContainer =(ViewGroup中)findViewById(R.id.messagesContainer);
        scrollContainer =(滚动型)findViewById(R.id.scrollContainer);

        按钮sendMessageButton =(按钮)findViewById(R.id.sendButton);

        束束= this.getIntent()getExtras()。
        / *最后弦乐paramnama = bundle.getString(非农产品市场准入); * /
        =的MessageText(的EditText)findViewById(R.id.messageEdit);
        meLabel =(TextView中)findViewById(R.id.meLabel);
        friendLabel =(TextView中)findViewById(R.id.friendLabel);
        meLabel.setText(我);


        最后的字符串参数1 = bundle.getString(keyCourseId);
        最后的字符串参数2 = bundle.getString(keyUserId);
        最后的字符串参数3 = bundle.getString(keyChatsId);
         串param4 = bundle.getString(keyMessagesId);


        sendMessageButton.setOnClickListener(新View.OnClickListener(){

            @覆盖
            公共无效的onClick(视图v){
                // TODO自动生成方法存根

                //用于发送一部分已经工作正常
        });

        HttpURLConnection的连接;
        网址URL = NULL;
        尝试{
            linkurl =新Koneksi(本);
            SERVER_URL = linkurl.getUrl();
            SERVER_URL + =/mobile/ChatRoom.php?idu="+param2+"&idch="+param3;
            URL =新的URL(SERVER_URL);
            连接=(HttpURLConnection类)url.openConnection();
            connection.setDoOutput(真正的);
            connection.setRequestProperty(内容类型,应用程序/ x-WWW的形式urlen codeD);
            connection.setRequestMethod(POST);
            新ReceivedTask()执行()。

            }
        赶上(IOException异常E){
            // TODO自动生成的catch块
            e.printStackTrace();
        }

            }


    公共类ReceivedTask扩展的AsyncTask<字符串,字符串,字符串> {

        @覆盖
        在preExecute保护无效(){

        }

        @覆盖
        保护字符串doInBackground(字符串...为arg0){
            // TODO自动生成方法存根
            尝试{
                HttpClient的HttpClient的=新DefaultHttpClient();
                HttpPost httpPost =新HttpPost(SERVER_URL);
                ArrayList的<的NameValuePair>参数=新的ArrayList<的NameValuePair>();
                //添加参数
                    httpPost.setEntity(新UrlEn codedFormEntity(参数));

                    HTT presponse HTT prespose = httpClient.execute(httpPost);
                    HttpEntity httpEntity = HTT prespose.getEntity();

                    //读取内容
                    InputStream的时间= httpEntity.getContent();
                    的BufferedReader读=新的BufferedReader(新的InputStreamReader(在));

                    字符串的内容=;
                    串线=;


                    而((行= read.readLine())!= NULL){
                       内容+ =行;
                    }
                   Log.d(ADBUG,内容:+内容);

                   // JSON
                    如果(!content.equals(空)){
                        尝试{
                            JSONArray jArr =新JSONArray(内容);

                             //字符串消息=;
                              的for(int i = 0; I< jArr.length();我++){
                                  的JSONObject jObj = jArr.getJSONObject(ⅰ);


                                     字符串消息= jObj.getString(信息);


                                     showMessage(消息,FALSE);
                              }
                        }赶上(JSONException E){
                            // TODO自动生成的catch块
                            e.printStackTrace();
                        }
                    }
                    其他{
                        Toast.makeText(ChatRoom.this,错误,Toast.LENGTH_LONG).show();
                     }
            }赶上(ClientProtocolException E){
                // TODO自动生成的catch块
                e.printStackTrace();}
            赶上(IOException异常E){
                // TODO自动生成的catch块
                e.printStackTrace();
            }



            返回null;

                }
        }



    公共无效showMessage(字符串消息,布尔leftSide){
        最后的TextView TextView的=新的TextView(ChatRoom.this);
        textView.setTextColor(Color.BLACK);
        textView.setText(消息);

        INT bgRes = R.drawable.left_message_bg;

        LinearLayout.LayoutParams PARAMS =新LinearLayout.LayoutParams(
                LinearLayout.LayoutParams.WRAP_CONTENT,LinearLayout.LayoutParams.WRAP_CONTENT);

        如果(!leftSide){
            bgRes = R.drawable.right_message_bg;
            params.gravity = Gravity.RIGHT;
        }

        textView.setLayoutParams(PARAMS);

        textView.setBackgroundResource(bgRes);

        runOnUiThread(新的Runnable(){
            @覆盖
            公共无效的run(){
                messagesContainer.addView(TextView的);

                //滚动到底
                如果(scrollContainer.getChildAt(0)!= NULL){
                    scrollContainer.scrollTo(scrollContainer.getScrollX(),scrollContainer.getChildAt(0).getHeight());
                }
                scrollContainer.fullScroll(View.FOCUS_DOWN);
            }
        });
    }
 

LogCat中

  06-22 17:16:06.688:D / ADBUG(698):内容: [{"firstname":"teach","message":"test"},{"firstname":"teach","message":"test"},{"firstname":"teach","message":"test"},{"firstname":"teach","message":"testing聊天},
06-22 17:16:06.787:W / dalvikvm(698):主题ID = 11:线程退出与未捕获的异常(组= 0x40015560)
06-22 17:16:06.797:E / AndroidRuntime(698):致命异常:AsyncTask的#2
06-22 17:16:06.797:E / AndroidRuntime(698):java.lang.RuntimeException的:一个错误而执行doInBackground发生()
06-22 17:16:06.797:E / AndroidRuntime(698):在android.os.AsyncTask $ 3.done(AsyncTask.java:200)
06-22 17:16:06.797:E / AndroidRuntime(698):在java.util.concurrent.FutureTask中$ Sync.innerSetException(FutureTask.java:274)
06-22 17:16:06.797:E / AndroidRuntime(698):在java.util.concurrent.FutureTask.setException(FutureTask.java:125)
06-22 17:16:06.797:E / AndroidRuntime(698):在java.util.concurrent.FutureTask中$ Sync.innerRun(FutureTask.java:308)
06-22 17:16:06.797:E / AndroidRuntime(698):在java.util.concurrent.FutureTask.run(FutureTask.java:138)
06-22 17:16:06.797:E / AndroidRuntime(698):在java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1088)
06-22 17:16:06.797:E / AndroidRuntime(698):在java.util.concurrent.ThreadPoolExecutor中的$ Worker.run(ThreadPoolExecutor.java:581)
06-22 17:16:06.797:E / AndroidRuntime(698):在java.lang.Thread.run(Thread.java:1019)
06-22 17:16:06.797:E / AndroidRuntime(698):android.view.ViewRoot $ CalledFromWrongThreadException:只有创建视图层次可以触摸其观点原始线程所致。
06-22 17:16:06.797:E / AndroidRuntime(698):在android.view.ViewRoot.checkThread(ViewRoot.java:2932)
06-22 17:16:06.797:E / AndroidRuntime(698):在android.view.ViewRoot.requestLayout(ViewRoot.java:629)
06-22 17:16:06.797:E / AndroidRuntime(698):在android.view.View.requestLayout(View.java:8267)
06-22 17:16:06.797:E / AndroidRuntime(698):在android.view.View.requestLayout(View.java:8267)
06-22 17:16:06.797:E / AndroidRuntime(698):在android.view.View.requestLayout(View.java:8267)
06-22 17:16:06.797:E / AndroidRuntime(698):在android.view.View.requestLayout(View.java:8267)
06-22 17:16:06.797:E / AndroidRuntime(698):在android.widget.RelativeLayout.requestLayout(RelativeLayout.java:257)
06-22 17:16:06.797:E / AndroidRuntime(698):在android.view.View.requestLayout(View.java:8267)
06-22 17:16:06.797:E / AndroidRuntime(698):在android.widget.ScrollView.requestLayout(ScrollView.java:1291)
06-22 17:16:06.797:E / AndroidRuntime(698):在android.view.View.requestLayout(View.java:8267)
06-22 17:16:06.797:E / AndroidRuntime(698):在android.view.View.requestLayout(View.java:8267)
06-22 17:16:06.797:E / AndroidRuntime(698):在android.widget.TextView.checkForRelayout(TextView.java:5521)
06-22 17:16:06.797:E / AndroidRuntime(698):在android.widget.TextView.setText(TextView.java:2724)
06-22 17:16:06.797:E / AndroidRuntime(698):在android.widget.TextView.setText(TextView.java:2592)
06-22 17:16:06.797:E / AndroidRuntime(698):在android.widget.TextView.setText(TextView.java:2567)
06-22 17:16:06.797:E / AndroidRuntime(698):在mobile.chat.ChatRoom $ ReceivedTask.doInBackground(ChatRoom.java:199)
06-22 17:16:06.797:E / AndroidRuntime(698):在mobile.chat.ChatRoom $ ReceivedTask.doInBackground(ChatRoom.java:1)
06-22 17:16:06.797:E / AndroidRuntime(698):在android.os.AsyncTask $ 2.call(AsyncTask.java:185)
06-22 17:16:06.797:E / AndroidRuntime(698):在java.util.concurrent.FutureTask中$ Sync.innerRun(FutureTask.java:306)
06-22 17:16:06.797:E / AndroidRuntime(698):4 ...更多
 
为什么我的QQ只显示好友网名 不显示好友备注 还有聊天里字也变红色的

解决方案

会使人的名字变为动态

 公共无效showPerson(字符串friendname,布尔leftSide){
        最后的TextView TextView的=新的TextView(ChatRoom.this);
        textView.setTextColor(Color.BLACK);
        textView.setTextSize(12);
        textView.setText(friendname);

        INT bgName = R.id.meLabel;

        LinearLayout.LayoutParams PARAMS =新LinearLayout.LayoutParams(
                LinearLayout.LayoutParams.WRAP_CONTENT,LinearLayout.LayoutParams.WRAP_CONTENT);

        如果(!leftSide){
            bgName = R.id.friendLabel;
            params.gravity = Gravity.RIGHT;
        }

        textView.setLayoutParams(PARAMS);

        textView.setId(bgName);

        runOnUiThread(新的Runnable(){
            @覆盖
            公共无效的run(){
                messagesContainer.addView(TextView的);

                //滚动到底
                如果(scrollContainer.getChildAt(0)!= NULL){
                    scrollContainer.scrollTo(scrollContainer.getScrollX(),scrollContainer.getChildAt(0).getHeight());
                }
                scrollContainer.fullScroll(View.FOCUS_DOWN);
            }
        });
    }
 

所以JSON一部分变成了这个样子

 如果(!content.equals(空)){
                        尝试{
                            JSONArray jArr =新JSONArray(内容);

                             //字符串消息=;
                              的for(int i = 0; I< jArr.length();我++){
                                  的JSONObject jObj = jArr.getJSONObject(ⅰ);

                                     字符串名称= jObj.getString(名字);
                                     字符串消息= jObj.getString(信息);

                                     showPerson(姓名,假);
                                     showMessage(消息,FALSE);
                              }
                        }赶上(JSONException E){
                            // TODO自动生成的catch块
                            e.printStackTrace();
                        }
                    }
 

I have problem to show the friend name on my chat. the apps force close every time run to show the friend's name. if i comment the part for friend's name, the messages can appear fine. but when i add the label for name, it got error and force close. i really need help, anyone please help me. thank you

json part

if(!content.equals("null")){
                        try{
                            JSONArray jArr = new JSONArray(content);

                             // String messages="";
                              for(int i=0; i < jArr.length() ; i++){ 
                                  JSONObject jObj = jArr.getJSONObject(i);

                                     String name = jObj.getString("firstname");
                                     String message = jObj.getString("message");

                                     friendLabel.setText(name);
                                     showMessage(message, false);
                              }
                        }catch(JSONException e) {
                            // TODO Auto-generated catch block
                            e.printStackTrace();
                        }
                    }
                    else{
                        Toast.makeText(ChatRoom.this, "Error", Toast.LENGTH_LONG).show();
                     }

whole code

@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.chatpage);

        messagesContainer = (ViewGroup) findViewById(R.id.messagesContainer);
        scrollContainer = (ScrollView) findViewById(R.id.scrollContainer);

        Button sendMessageButton = (Button) findViewById(R.id.sendButton);

        Bundle bundle = this.getIntent().getExtras();
        /*final String paramnama = bundle.getString("nama");*/
        messageText = (EditText) findViewById(R.id.messageEdit);
        meLabel = (TextView) findViewById(R.id.meLabel);
        friendLabel = (TextView) findViewById(R.id.friendLabel);
        meLabel.setText("me");


        final String param1 = bundle.getString("keyCourseId");
        final String param2 = bundle.getString("keyUserId");
        final String param3 = bundle.getString("keyChatsId");
         String param4 = bundle.getString("keyMessagesId");


        sendMessageButton.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub

                //for send part already works fine
        });

        HttpURLConnection connection;
        URL url = null;
        try{
            linkurl = new Koneksi(this);
            SERVER_URL = linkurl.getUrl();
            SERVER_URL += "/mobile/ChatRoom.php?idu="+param2+"&idch="+param3;
            url = new URL(SERVER_URL);
            connection = (HttpURLConnection) url.openConnection();
            connection.setDoOutput(true);
            connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
            connection.setRequestMethod("POST");
            new ReceivedTask().execute();

            }
        catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

            }


    public class ReceivedTask extends AsyncTask<String, String, String> {

        @Override
        protected void onPreExecute() {

        }

        @Override
        protected String doInBackground(String... arg0) {
            // TODO Auto-generated method stub
            try{
                HttpClient httpClient = new DefaultHttpClient();
                HttpPost httpPost = new HttpPost(SERVER_URL);
                ArrayList<NameValuePair> param = new ArrayList<NameValuePair>();
                //add parameter
                    httpPost.setEntity(new UrlEncodedFormEntity(param));

                    HttpResponse httpRespose = httpClient.execute(httpPost);
                    HttpEntity httpEntity = httpRespose.getEntity();

                    //read content
                    InputStream in = httpEntity.getContent();
                    BufferedReader read = new BufferedReader(new InputStreamReader(in));

                    String content = "";
                    String line = "";


                    while((line = read.readLine())!=null){
                       content += line;
                    }
                   Log.d("ADBUG", "content: "+content);

                   //json
                    if(!content.equals("null")){
                        try{
                            JSONArray jArr = new JSONArray(content);

                             // String messages="";
                              for(int i=0; i < jArr.length() ; i++){ 
                                  JSONObject jObj = jArr.getJSONObject(i);


                                     String message = jObj.getString("message");


                                     showMessage(message, false);
                              }
                        }catch(JSONException e) {
                            // TODO Auto-generated catch block
                            e.printStackTrace();
                        }
                    }
                    else{
                        Toast.makeText(ChatRoom.this, "Error", Toast.LENGTH_LONG).show();
                     }
            } catch (ClientProtocolException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();}
            catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }



            return null;

                }
        }



    public void showMessage(String message, boolean leftSide) {
        final TextView textView = new TextView(ChatRoom.this);
        textView.setTextColor(Color.BLACK);
        textView.setText(message);

        int bgRes = R.drawable.left_message_bg;

        LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
                LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);

        if (!leftSide) {
            bgRes = R.drawable.right_message_bg;
            params.gravity = Gravity.RIGHT;
        }

        textView.setLayoutParams(params);

        textView.setBackgroundResource(bgRes);

        runOnUiThread(new Runnable() {
            @Override
            public void run() {
                messagesContainer.addView(textView);

                // Scroll to bottom
                if (scrollContainer.getChildAt(0) != null) {
                    scrollContainer.scrollTo(scrollContainer.getScrollX(), scrollContainer.getChildAt(0).getHeight());
                }
                scrollContainer.fullScroll(View.FOCUS_DOWN);
            }
        });
    }

LogCat

06-22 17:16:06.688: D/ADBUG(698): content: [{"firstname":"teach","message":"test"},{"firstname":"teach","message":"test"},{"firstname":"teach","message":"test"},{"firstname":"teach","message":"testing chat"},
06-22 17:16:06.787: W/dalvikvm(698): threadid=11: thread exiting with uncaught exception (group=0x40015560)
06-22 17:16:06.797: E/AndroidRuntime(698): FATAL EXCEPTION: AsyncTask #2
06-22 17:16:06.797: E/AndroidRuntime(698): java.lang.RuntimeException: An error occured while executing doInBackground()
06-22 17:16:06.797: E/AndroidRuntime(698):  at android.os.AsyncTask$3.done(AsyncTask.java:200)
06-22 17:16:06.797: E/AndroidRuntime(698):  at java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:274)
06-22 17:16:06.797: E/AndroidRuntime(698):  at java.util.concurrent.FutureTask.setException(FutureTask.java:125)
06-22 17:16:06.797: E/AndroidRuntime(698):  at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:308)
06-22 17:16:06.797: E/AndroidRuntime(698):  at java.util.concurrent.FutureTask.run(FutureTask.java:138)
06-22 17:16:06.797: E/AndroidRuntime(698):  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1088)
06-22 17:16:06.797: E/AndroidRuntime(698):  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581)
06-22 17:16:06.797: E/AndroidRuntime(698):  at java.lang.Thread.run(Thread.java:1019)
06-22 17:16:06.797: E/AndroidRuntime(698): Caused by: android.view.ViewRoot$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views.
06-22 17:16:06.797: E/AndroidRuntime(698):  at android.view.ViewRoot.checkThread(ViewRoot.java:2932)
06-22 17:16:06.797: E/AndroidRuntime(698):  at android.view.ViewRoot.requestLayout(ViewRoot.java:629)
06-22 17:16:06.797: E/AndroidRuntime(698):  at android.view.View.requestLayout(View.java:8267)
06-22 17:16:06.797: E/AndroidRuntime(698):  at android.view.View.requestLayout(View.java:8267)
06-22 17:16:06.797: E/AndroidRuntime(698):  at android.view.View.requestLayout(View.java:8267)
06-22 17:16:06.797: E/AndroidRuntime(698):  at android.view.View.requestLayout(View.java:8267)
06-22 17:16:06.797: E/AndroidRuntime(698):  at android.widget.RelativeLayout.requestLayout(RelativeLayout.java:257)
06-22 17:16:06.797: E/AndroidRuntime(698):  at android.view.View.requestLayout(View.java:8267)
06-22 17:16:06.797: E/AndroidRuntime(698):  at android.widget.ScrollView.requestLayout(ScrollView.java:1291)
06-22 17:16:06.797: E/AndroidRuntime(698):  at android.view.View.requestLayout(View.java:8267)
06-22 17:16:06.797: E/AndroidRuntime(698):  at android.view.View.requestLayout(View.java:8267)
06-22 17:16:06.797: E/AndroidRuntime(698):  at android.widget.TextView.checkForRelayout(TextView.java:5521)
06-22 17:16:06.797: E/AndroidRuntime(698):  at android.widget.TextView.setText(TextView.java:2724)
06-22 17:16:06.797: E/AndroidRuntime(698):  at android.widget.TextView.setText(TextView.java:2592)
06-22 17:16:06.797: E/AndroidRuntime(698):  at android.widget.TextView.setText(TextView.java:2567)
06-22 17:16:06.797: E/AndroidRuntime(698):  at mobile.chat.ChatRoom$ReceivedTask.doInBackground(ChatRoom.java:199)
06-22 17:16:06.797: E/AndroidRuntime(698):  at mobile.chat.ChatRoom$ReceivedTask.doInBackground(ChatRoom.java:1)
06-22 17:16:06.797: E/AndroidRuntime(698):  at android.os.AsyncTask$2.call(AsyncTask.java:185)
06-22 17:16:06.797: E/AndroidRuntime(698):  at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:306)
06-22 17:16:06.797: E/AndroidRuntime(698):  ... 4 more

解决方案

make the person name become dynamic

public void showPerson(String friendname, boolean leftSide) {
        final TextView textView = new TextView(ChatRoom.this);
        textView.setTextColor(Color.BLACK);
        textView.setTextSize(12);
        textView.setText(friendname);

        int bgName = R.id.meLabel;

        LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
                LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);

        if (!leftSide) {
            bgName = R.id.friendLabel;
            params.gravity = Gravity.RIGHT;
        }

        textView.setLayoutParams(params);

        textView.setId(bgName);

        runOnUiThread(new Runnable() {
            @Override
            public void run() {
                messagesContainer.addView(textView);

                // Scroll to bottom
                if (scrollContainer.getChildAt(0) != null) {
                    scrollContainer.scrollTo(scrollContainer.getScrollX(), scrollContainer.getChildAt(0).getHeight());
                }
                scrollContainer.fullScroll(View.FOCUS_DOWN);
            }
        });
    }

so the json part become like this

                    if(!content.equals("null")){
                        try{
                            JSONArray jArr = new JSONArray(content);

                             // String messages="";
                              for(int i=0; i < jArr.length() ; i++){ 
                                  JSONObject jObj = jArr.getJSONObject(i);

                                     String name = jObj.getString("firstname");
                                     String message = jObj.getString("message");

                                     showPerson(name, false);
                                     showMessage(message, false);
                              }
                        }catch(JSONException e) {
                            // TODO Auto-generated catch block
                            e.printStackTrace();
                        }
                    }