Android数字键盘

Question

I am trying to add a keyboard listener...

txta1cresult.setOnEditorActionListener(new OnEditorActionListener() {
    public boolean onEditorAction(TextView v,int actionId, KeyEvent event) {
        if(actionId==EditorInfo.IME_ACTION_DONE){
            calculate();
        }
    return false;
    }
});  

However, I am getting the following compiler error...

/home/jocala/hba1c/src/com/android/hba1c.java:82: cannot find symbol
symbol  : class OnEditorActionListener
location: class com.jocala.hba1c.hba1c
txta1cresult.setOnEditorActionListener(new OnEditorActionListener() {        

This is my EditText ...

<EditText
    android:id="@+id/txta1cresult"
    android:inputType="numberDecimal"
    android:layout_width="80px"
    android:maxLength="5"
    android:layout_height="40px"
    android:textSize="18sp"
    android:layout_x="200px"
    android:layout_y="32px"
    >
</EditText>

Do I need to import something other than EditText and TextView ? Is there something else wrong here?

 [javac] Compiling 3 source files to /home/jeff/hba1c/bin/classes
  [javac] /home/jeff/hba1c/src/com/android/hba1c.java:83: cannot find symbol
  [javac] symbol: class KeyEvent
  [javac]     public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
     [javac]                                                       ^
[javac] /home/jeff/hba1c/src/com/android/hba1c.java:84: cannot find symbol
[javac] symbol: variable EditorInfo
[javac]         if(actionId==EditorInfo.IME_ACTION_DONE){
[javac]                      ^
[javac] 2 errors

2 errors remaining after fixing the import:

[javac] Compiling 2 source files to /home/jeff/hba1c/bin/classes
[javac] /home/jeff/hba1c/src/com/android/hba1c.java:161: cannot find symbol
[javac] symbol: class KeyEvent
[javac]     public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
[javac]                                                             ^
[javac] /home/jeff/hba1c/src/com/android/hba1c.java:162: cannot find symbol
[javac] symbol: variable EditorInfo
[javac]         if(actionId==EditorInfo.IME_ACTION_DONE){
[javac]                      ^
[javac] 2 errors

It appears to choke on this code:

public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
    if(actionId==EditorInfo.IME_ACTION_DONE){
        calculate();
    }

Finally fixed with:

import android.view.KeyEvent; import android.view.inputmethod.EditorInfo;

Thanks!

Answer 1

It looks like you need to import TextView.OnEditorActionListener

Relatedly, pay attention to the KeyEvent parameter. If the action was triggered by an Enter key (which sounds like what you want to do), it will be in that parameter. You might try that instead of gleaning it from the int parameter.

Answer 2

You need to import android.widget.TextView.OnEditorActionListener in your code.

Or, change your listener from this...

txta1cresult.setOnEditorActionListener(new OnEditorActionListener() {

to this...

txta1cresult.setOnEditorActionListener(new TextView.OnEditorActionListener() {

The compiler error you're getting is basically saying that is doesn't know what OnEditorActionListener is, so you need to import it.