你能告诉我如何使用textwatcher吗？ [英] Can you tell me how to use textwatcher

问题描述

public void addKeyListener() {

    // get edittext component
    edittext = (EditText) findViewById(R.id.editText);
    edittext1 = (EditText) findViewById(R.id.editText1);



    // add a keylistener to keep track user input
    edittext.setOnEditorActionListener(new TextView.OnEditorActionListener() {
        @Override
        public boolean onEditorAction(TextView v, int keyCode, KeyEvent event) {

        // if keydown and "enter" is pressed
            if(keyCode == EditorInfo.IME_ACTION_GO)
        {
            edittext1.requestFocus();
            return true;
        }


        return false;
     } });

     edittext1.setOnEditorActionListener(new TextView.OnEditorActionListener() {
             @Override
             public boolean onEditorAction(TextView a, int b, KeyEvent c) {

        // if keydown and "enter" is pressed
             if(b == EditorInfo.IME_ACTION_GO) {

            //hide the keyboard
             InputMethodManager imm = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
             imm.hideSoftInputFromWindow(edittext.getWindowToken(), 0);
             imm.hideSoftInputFromWindow(edittext1.getWindowToken(), 0);
        // display a floating message
            Toast.makeText(MyAndroidAppActivity.this, edittext.getText().toString() + " " + edittext1.getText().toString(), Toast.LENGTH_SHORT).show();
            return true;
        }

        return false;
      } });

 }

你能告诉我如何使用文本观察器，应该在android 4.4中工作。请帮帮我



请重写完整代码并告诉我

Can you tell me how to use text watcher and should work in android 4.4. Please help me

Please rewrite the complete code and tell me

推荐答案

参考以下示例



http：//learnandroideasily.blogspot .in / 2013/06 / using-textwatcher-in-android.html [ ^ ]



http://rajeshvijayakumar.blogspot.in/2013/03/text-watcher-example-in-android.html [ ^ ]

Refer following examples

http://learnandroideasily.blogspot.in/2013/06/using-textwatcher-in-android.html[^]

http://rajeshvijayakumar.blogspot.in/2013/03/text-watcher-example-in-android.html[^]

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