TextWatcher的事件被两次调用 [英] Events of TextWatcher are being called twice

问题描述

在我的应用程序上，我将TextWatcher放在EditText上.当我更改EditText的文本时，TextWatcher的事件被调用了两次.

On my application I put TextWatcher on EditText. When I change the text of the EditText, the events of TextWatcher are being called twice.

我正在使用模拟器来运行该应用程序.

I am using emulator for running the app.

推荐答案

您的代码看起来如何?这是TextWatcher的正常行为. 示例:

How does your code looks like? that is the normal behaviour of TextWatcher. Example:

myInput.addTextChangedListener(new TextWatcher() {
        boolean mToggle = false;

        public void onTextChanged(CharSequence cs, int s, int b, int c) {}

        public void afterTextChanged(Editable editable) {
            if (mToggle) { 
                Toast.makeText(getBaseContext(), "HIT KEY",Toast.LENGTH_LONG).show();
            }
            mToggle = !mToggle;
        }

        public void beforeTextChanged(CharSequence cs, int i, int j, int k) {}
    });

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