Question

我正在努力设置TextView的文本，所以我现在尝试按下按钮，但是当我从按钮readWeight启动线程时，按钮updateButton不会工作。

以下是我的两个按钮onClick方法：

readWeight.setOnClickListener(new View.OnClickListener() {
    public void onClick(View v) {

        inputWindow.setText("helloooooooo worldddddd");
        //connector.run();
        System.out.println("********** PRINTING **********");

        // readWeight.setVisibility(View.INVISIBLE);
    }
});
updateButton.setOnClickListener(new View.OnClickListener() {
    public void onClick(View v) {
        System.out.println("!!!!!!!!!!!!!!!"+weight+"!!!!!!!!!!!!!!!");
        inputWindow.setText(weight);
    }
});

这是启动线程的方法，这个方法在另一个类中：

public void run() {
    new Handler().post(new Runnable() {

        @Override
        public void run() {
            // Always cancel discovery because it will slow down a connection
            //Log.d("workkkkkk","$$$$$$$$$$$$$$$$****** printingggggg ******$$$$$$$$$$$$$$$$");
            int counter = 0;
            while (true) {
                counter++;
                try {
                    output = "";
                    //read the data from socket stream
                    //mmInStream != null && counter%10000000 == 1
                    if (mmInStream != null) {
                        mmInStream.read(buffer);
                        for (byte b : buffer) {
                            char c = (char) b;
                            if (c >= ' ' && c < 'z') {
                               // System.out.print(c);
                                output += c;
                            }

                        }
                        System.out.println();
                        Intent intent = new Intent();
                        intent.setAction("com.curie.WEIGHT_RECEIVED");
                        intent.putExtra("Output",output);

                        if (counter % 10 == 0) {

                            System.out.println(counter);

                            //InputActivity.setInputWindowText(output);
                            LocalBroadcastManager.getInstance(InputActivity.getContext()).sendBroadcastSync(intent);

                        }


                    }
                    // Send the obtained bytes to the UI Activity
                } catch (IOException e) {
                    //an exception here marks connection loss
                    //send message to UI Activity
                    break;
                }
            }
        }

任何帮助都将非常感谢！谢谢。

Answer 1

使用时

Handler.post()

它在UI线程中运行，因此如果它是长动作，它将阻止所有接口。要避免它，你应该在另一个线程中运行它。如果您不想使用复杂的东西，可以试试这个：

mHandler = new Handler();

new Thread(new Runnable() {
   @Override
   public void run () {
     mHandler.post(new Runnable() {
      @Override
      public void run () {
        // place your action here
      }
     });
   }
 }).start();

线程运行时按钮onClick（）无效

1 个答案: