Android 使用键盘上的“完成”按钮来单击按钮

问题描述 投票：0回答：13

好的，在我的应用程序中，我有一个供用户输入数字的字段。我已将该字段设置为仅接受数字。当用户单击该字段时，它会弹出键盘。键盘（ICS 上）上有一个完成按钮。我希望键盘上的完成按钮能够触发我的应用程序中的提交按钮。我的代码如下。

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);


        }
    }

};

}
android keyboard-events android-softkeyboard
13个回答
343
投票

您也可以使用这个（设置一个特殊的侦听器，当在 EditText 上执行操作时调用），它适用于 DONE 和 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;
        }
    });

此外，在键盘本身中显示一个漂亮的发送按钮会让它变得更好。在 EditText xml 中添加以下行：

android:imeOptions="actionSend"
android:inputType="text"
30
投票

您可以尝试使用 

IME_ACTION_DONE
.

此操作执行“完成”操作，无需输入任何内容，并且 IME 将关闭。

 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;
            }
        });
29
投票

Kotlin 解决方案

Kotlin 中处理完成操作的基本方法是：

edittext.setOnEditorActionListener { _, actionId, _ ->
    if (actionId == EditorInfo.IME_ACTION_DONE) {
        // Call your code here
        true
    }
    false
}

Kotlin 扩展

使用它在主代码中调用

edittext.onDone {/*action*/}
。使其更具可读性和可维护性

edittext.onDone { submitForm() }

fun EditText.onDone(callback: () -> Unit) {
    setOnEditorActionListener { _, actionId, _ ->
        if (actionId == EditorInfo.IME_ACTION_DONE) {
            callback.invoke()
            true
        }
        false
    }
}

不要忘记将这些选项添加到您的编辑文本中

<EditText ...
    android:imeOptions="actionDone"
    android:inputType="text"/>

如果您需要

inputType="textMultiLine"
支持，阅读这篇文章

17
投票

试试这个：

max.setOnKeyListener(new OnKeyListener(){
    @Override
    public boolean onKey(View v, int keyCode, KeyEvent event){
        if(keyCode == event.KEYCODE_ENTER){
            //do what you want
        }
    }
});
8
投票

针对 Xamarin.Android（跨平台）尝试此操作

edittext.EditorAction += (object sender, TextView.EditorActionEventArgs e) {
       if (e.ActionId.Equals (global::Android.Views.InputMethods.ImeAction.Done)) {
           //TODO Something
       }
};
4
投票

当您创建 LoginActivity 时，我从 AndroidStudio 复制了以下代码。 我使用 ime 属性

在您的布局中

<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"/>

在您的活动中

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;
        }
    });
2
投票

您可以在关键侦听器上实现：

public class ProbabilityActivity extends Activity implements OnClickListener, View.OnKeyListener {

在 onCreate 中：

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;
}
2
投票

Kotlin 和数字键盘

如果您使用数字键盘，则必须关闭键盘， 它会像：

editText.setOnEditorActionListener { v, actionId, event ->
  if (action == EditorInfo.IME_ACTION_DONE || action == EditorInfo.IME_ACTION_NEXT || action == EditorInfo.IME_ACTION_UNSPECIFIED) {
      //hide the keyboard
      val imm = context.getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
      imm.hideSoftInputFromWindow(v.windowToken, 0)
      //Take action
      editValue.clearFocus()
      return true
  } else {
      return false
  }
}
1
投票

如果您想捕获键盘输入按钮来完成您想要通过任何事件（如按钮单击）完成的工作，您可以为该文本视图编写以下简单代码

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;
}
});
0
投票

在布局中使用此类：

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;
    }

}

在 XML 中：

<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" />
0
投票
max.setOnKeyListener(new OnKeyListener(){
  @Override
  public boolean onKey(View v, int keyCode, KeyEvent event){
    if(keyCode == event.KEYCODE_ENTER){
        //do what you want
    }
  }
});
0
投票

你最后的Edittext.setOnEditorActionListener调用此方法自动命中api

我在et_password中的LoginActivity中被调用

 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;
            }
        });

工作正常

0
投票

这是 Kotlin 版本：

editText.setOnEditorActionListener { v, actionId, event ->
  if(actionId == EditorInfo.IME_ACTION_DONE){
      //Put your action there
      true
  } else {
      false
  }
}
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