问题
Ok in my app I have a field for the user to input a number. I have the field set to only accept numbers. When the user clicks on the field it brings up the keyboard. On the keyboard (on ICS) there is a done button. I would like for the done button on the keyboard to trigger the submit button i have in my application. My code is as follows.
package com.michaelpeerman.probability;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.content.DialogInterface.OnCancelListener;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import java.util.Random;
public class ProbabilityActivity extends Activity implements OnClickListener {
private Button submit;
ProgressDialog dialog;
int increment;
Thread background;
int heads = 0;
int tails = 0;
public void onCreate(Bundle paramBundle) {
super.onCreate(paramBundle);
setContentView(R.layout.main);
submit = ((Button) findViewById(R.id.submit));
submit.setOnClickListener(this);
}
public void onClick(View view) {
increment = 1;
dialog = new ProgressDialog(this);
dialog.setCancelable(true);
dialog.setMessage("Flipping Coin...");
dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
dialog.setProgress(0);
EditText max = (EditText) findViewById(R.id.number);
int maximum = Integer.parseInt(max.getText().toString());
dialog.setMax(maximum);
dialog.show();
dialog.setOnCancelListener(new OnCancelListener(){
public void onCancel(DialogInterface dialog) {
background.interrupt();
TextView result = (TextView) findViewById(R.id.result);
result.setText("heads : " + heads + "\ntails : " + tails);
}});
background = new Thread(new Runnable() {
public void run() {
heads=0;
tails=0;
for (int j = 0; !Thread.interrupted() && j < dialog.getMax(); j++) {
int i = 1 + new Random().nextInt(2);
if (i == 1)
heads++;
if (i == 2)
tails++;
progressHandler.sendMessage(progressHandler.obtainMessage());
}
}
});
background.start();
}
Handler progressHandler = new Handler() {
public void handleMessage(Message msg) {
dialog.incrementProgressBy(increment);
if (dialog.getProgress() == dialog.getMax()) {
dialog.dismiss();
TextView result = (TextView) findViewById(R.id.result);
result.setText("heads : " + heads + "\ntails : " + tails);
}
}
};
}
回答1:
You can use this one also (sets a special listener to be called when an action is performed on the EditText), it works both for DONE and RETURN:
max.setOnEditorActionListener(new OnEditorActionListener() {
@Override
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
if ((event != null && (event.getKeyCode() == KeyEvent.KEYCODE_ENTER)) || (actionId == EditorInfo.IME_ACTION_DONE)) {
Log.i(TAG,"Enter pressed");
}
return false;
}
});
回答2:
You can try with IME_ACTION_DONE .
This action performs a “done” operation for nothing to input and the IME will be closed.
Your_EditTextObj.setOnEditorActionListener(new TextView.OnEditorActionListener() {
@Override
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
boolean handled = false;
if (actionId == EditorInfo.IME_ACTION_DONE) {
/* Write your logic here that will be executed when user taps next button */
handled = true;
}
return handled;
}
});
回答3:
Try this:
max.setOnKeyListener(new OnKeyListener(){
@Override
public boolean onKey(View v, int keyCode, KeyEvent event){
if(keyCode == event.KEYCODE_ENTER){
//do what you want
}
}
});
回答4:
Try this for Xamarin.Android (Cross Platform)
edittext.EditorAction += (object sender, TextView.EditorActionEventArgs e) {
if (e.ActionId.Equals (global::Android.Views.InputMethods.ImeAction.Done)) {
//TODO Something
}
};
回答5:
I copied the following code from AndroidStudio when you create a LoginActivity. I use the ime attributes
In your layout
<EditText android:id="@+id/unidades" android:layout_width="match_parent"
android:layout_height="wrap_content" android:hint="@string/prompt_unidades"
android:inputType="number" android:maxLines="1"
android:singleLine="true"
android:textAppearance="?android:textAppearanceSmall"
android:enabled="true" android:focusable="true"
android:gravity="right"
android:imeActionId="@+id/cantidad"
android:imeActionLabel="@string/add"
android:imeOptions="actionUnspecified"/>
In your Activity
editTextUnidades.setOnEditorActionListener(new TextView.OnEditorActionListener() {
@Override
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
if (actionId == R.id.cantidad || actionId == EditorInfo.IME_NULL) {
addDetalle(null);
return true;
}
return false;
}
});
回答6:
You can implement on key listener:
public class ProbabilityActivity extends Activity implements OnClickListener, View.OnKeyListener {
In onCreate:
max.setOnKeyListener(this);
...
@Override
public boolean onKey(View v, int keyCode, KeyEvent event){
if(keyCode == event.KEYCODE_ENTER){
//call your button method here
}
return true;
}
回答7:
if you want to catch the keyboard enter button for doing your job which you want to done through any event like button click, you can write the below simple code for that text view
Edittext ed= (EditText) findViewById(R.id.edit_text);
ed.setOnEditorActionListener(new TextView.OnEditorActionListener() {
@Override
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
if (actionId == EditorInfo.IME_ACTION_DONE) {
// Do you job here which you want to done through event
}
return false;
}
});
回答8:
Use this class in your layout :
public class ActionEditText extends EditText
{
public ActionEditText(Context context)
{
super(context);
}
public ActionEditText(Context context, AttributeSet attrs)
{
super(context, attrs);
}
public ActionEditText(Context context, AttributeSet attrs, int defStyle)
{
super(context, attrs, defStyle);
}
@Override
public InputConnection onCreateInputConnection(EditorInfo outAttrs)
{
InputConnection conn = super.onCreateInputConnection(outAttrs);
outAttrs.imeOptions &= ~EditorInfo.IME_FLAG_NO_ENTER_ACTION;
return conn;
}
}
In xml:
<com.test.custom.ActionEditText
android:id="@+id/postED"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="@android:color/transparent"
android:gravity="top|left"
android:hint="@string/msg_type_message_here"
android:imeOptions="actionSend"
android:inputType="textMultiLine"
android:maxLines="5"
android:padding="5dip"
android:scrollbarAlwaysDrawVerticalTrack="true"
android:textColor="@color/white"
android:textSize="20sp" />
回答9:
max.setOnKeyListener(new OnKeyListener(){
@Override
public boolean onKey(View v, int keyCode, KeyEvent event){
if(keyCode == event.KEYCODE_ENTER){
//do what you want
}
}
});
回答10:
Your Last Edittext .setOnEditorActionListener call this method automatic hit api
I was Call in LoginActivity in et_password
et_Pass.setOnEditorActionListener(new TextView.OnEditorActionListener() {
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
if ((event != null && (event.getKeyCode() == KeyEvent.KEYCODE_ENTER)) || (actionId == EditorInfo.IME_ACTION_DONE)) {
Log.i(TAG,"Enter pressed");
Log.i(Check Internet," and Connect To Server");
}
return false;
}
});
Working Fine
回答11:
And this is a Kotlin version:
editText.setOnEditorActionListener { v, actionId, event ->
if(actionId == EditorInfo.IME_ACTION_DONE){
//Put your action there
true
} else {
false
}
}
来源：https://stackoverflow.com/questions/9596010/android-use-done-button-on-keyboard-to-click-button