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我只想这样做如果我输入一个等级,那么它会根据输入的等级更改为点字段,如果我输入一个点,那么它会更改等级字段根据输入的点。我为editText添加了textChangeListener,但是当我输入某些内容时,我的应用程序根本没有响应。Android TextWatcher不能连续编辑两个编辑文本
http://i.stack.imgur.com/50LYo.png
grade.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
if (grade.getText().toString().equals("A+"))
{
points.setText("4.00");
}
else if (grade.getText().toString().equals("A"))
{
points.setText("3.75");
}
else if (grade.getText().toString().equals("A-"))
{
points.setText("3.50");
}
else if (grade.getText().toString().equals("B+"))
{
points.setText("3.25");
}
else if (grade.getText().toString().equals("B"))
{
points.setText("3.00");
}
else if (grade.getText().toString().equals("B-"))
{
points.setText("2.75");
}
else if (grade.getText().toString().equals("C+"))
{
points.setText("2.50");
}
else if (grade.getText().toString().equals("C"))
{
points.setText("2.25");
}
else if (grade.getText().toString().equals("D"))
{
points.setText("2.00");
}
else if (grade.getText().toString().equals("F"))
{
points.setText("0.0");
}
else
points.setText(null);
}
@Override
public void afterTextChanged(Editable s) {
}
});
points.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
if (points.getText().toString().matches("[4]|[4]\\.[0]{0,2}"))
{
grade.setText("A+");
}
else if (points.getText().toString().matches("[3]\\.[7][5]{1}"))
{
grade.setText("A");
}
else if (points.getText().toString().matches("[3]\\.[5][0]{0,1}"))
{
grade.setText("A-");
}
else if (points.getText().toString().matches("[3]\\.[2][5]{1}"))
{
grade.setText("B+");
}
else if (points.getText().toString().matches("[3]|[3]\\.[0]{0,2}"))
{
grade.setText("B");
}
else if (points.getText().toString().matches("[2]\\.[7][5]{1}"))
{
grade.setText("B-");
}
else if (points.getText().toString().matches("[2]\\.[5][0]{0,1}"))
{
grade.setText("C+");
}
else if (points.getText().toString().matches("[2]\\.[2][5]{1}"))
{
grade.setText("C");
}
else if (points.getText().toString().matches("[2]|[2]\\.[0]{0,2}"))
{
grade.setText("D");
}
else if (points.getText().toString().matches("[0]|[0]\\.[0]{0,2}"))
{
grade.setText("F");
}
else
grade.setText(null);
}
@Override
public void afterTextChanged(Editable s) {
}
});
分享您的代码 –
把你textChange听者这里 – Vickyexpert
的代码检查一些错误来还是不来? – sushildlh