testEditText.setOnEditorActionListener(new TextView.OnEditorActionListener() {
    @Override
    public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
        Log.e("TAG", "onEditorAction: 點(diǎn)擊了回車(chē)按鈕");
        return false;
    }
});

testEditText.setOnEditorActionListener(OnEditorActionListener { v, actionId, event ->
    Log.e("TAG", "onEditorAction: 點(diǎn)擊了回車(chē)按鈕")
    false
})

testEditText.addTextChangedListener(new TextWatcher() {
    @Override
    public void beforeTextChanged(CharSequence s, int start, int count, int after) {
        //參數(shù)1代表輸入的
        Log.e("TAG", "beforeTextChanged: 輸入前（內(nèi)容變化前）的監(jiān)聽(tīng)回調(diào)"+s.toString()+"==="+start+"==="+count+"==="+after);
    }
    @Override
    public void onTextChanged(CharSequence s, int start, int before, int count) {
        Log.e("TAG", "beforeTextChanged: 輸入中（內(nèi)容變化中）的監(jiān)聽(tīng)回調(diào)"+s.toString()+"==="+start+"==="+before+"==="+count);
    }
    @Override
    public void afterTextChanged(Editable s) {
        Log.e("TAG", "beforeTextChanged: 輸入后（內(nèi)容變化后）的監(jiān)聽(tīng)回調(diào)"+s.toString());
    }
});

testEditText.addTextChangedListener(object : TextWatcher {
    override fun beforeTextChanged(s: CharSequence, start: Int, count: Int, after: Int) {
        //參數(shù)1代表輸入的
        Log.e("TAG", "beforeTextChanged: 輸入前（內(nèi)容變化前）的監(jiān)聽(tīng)回調(diào)$s===$start===$count===$after")
    }
    override fun onTextChanged(s: CharSequence, start: Int, before: Int, count: Int) {
        Log.e("TAG", "beforeTextChanged: 輸入中（內(nèi)容變化中）的監(jiān)聽(tīng)回調(diào)$s===$start===$before===$count")
    }
    override fun afterTextChanged(s: Editable) {
        Log.e("TAG", "beforeTextChanged: 輸入后（內(nèi)容變化后）的監(jiān)聽(tīng)回調(diào)$s")
    }
})

testEditText.setOnFocusChangeListener(new View.OnFocusChangeListener() {
    @Override
    public void onFocusChange(View v, boolean hasFocus) {
      Log.e("TAG", "onFocusChange: 是否獲取焦點(diǎn)：hasFocus：為true表示獲取焦點(diǎn)，為false表示未獲取");
    }
});

testEditText.setOnFocusChangeListener(OnFocusChangeListener { v, hasFocus ->
    Log.e("TAG", "onFocusChange: 是否獲取焦點(diǎn)：hasFocus：為true表示獲取焦點(diǎn)，為false表示未獲取")
 })

InputFilter custemInputFiter = new InputFilter() {
    @Override
    public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {
        //source 新輸入的字符串
        //start 新輸入的字符串起始下標(biāo)，一般為0
        //end 新輸入的字符串終點(diǎn)下標(biāo)，一般為source長(zhǎng)度-1
        //dest 輸入之前文本框內(nèi)容
        //dstart 原內(nèi)容起始坐標(biāo)，一般為0
        //dend 原內(nèi)容終點(diǎn)坐標(biāo)，一般為dest長(zhǎng)度-1
        if (source.toString().equals("芝麻粒兒")) {
            //此示例：輸入的如果是【芝麻粒兒】，則直接返回null，頁(yè)面上表現(xiàn)為不顯示
            return null;
        }
        Log.e("TAG", "filter: 自定義的過(guò)濾規(guī)則");
        return null;
    }
};
//傳遞的參數(shù)是數(shù)組，也就是可以有多個(gè)過(guò)濾規(guī)則
testEditText.setFilters(new InputFilter[]{
        custemInputFiter,
        new InputFilter.LengthFilter(6),
        new InputFilter.AllCaps()});

val custemInputFiter = InputFilter { source, start, end, dest, dstart, dend -> //source 新輸入的字符串
    //start 新輸入的字符串起始下標(biāo)，一般為0
    //end 新輸入的字符串終點(diǎn)下標(biāo)，一般為source長(zhǎng)度-1
    //dest 輸入之前文本框內(nèi)容
    //dstart 原內(nèi)容起始坐標(biāo)，一般為0
    //dend 原內(nèi)容終點(diǎn)坐標(biāo)，一般為dest長(zhǎng)度-1
    if (source.toString() == "芝麻粒兒") {
        //此示例：輸入的如果是【芝麻粒兒】，則直接返回null，頁(yè)面上表現(xiàn)為不顯示
        return@InputFilter null
    }
    Log.e("TAG", "filter: 自定義的過(guò)濾規(guī)則")
    null
}
//傳遞的參數(shù)是數(shù)組，也就是可以有多個(gè)過(guò)濾規(guī)則
testEditText.setFilters(
    arrayOf(
        custemInputFiter,
        LengthFilter(6),
        AllCaps()
    )
)