使用Android键盘上的“完成”按钮点击按钮

148

在我的应用程序中,我有一个字段供用户输入数字。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。在键盘上(在ICS上),有一个完成按钮。我希望键盘上的完成按钮触发我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);


        }
    }

};

}

1
请查看此链接:https://dev59.com/PVXTa4cB1Zd3GeqP0EmW - Nishant
这指的是文本框更新。 - mpeerman
我想要做的是让它触发我已经有的按钮。我不想去掉这个按钮,因为有些人可能正在使用没有完成按钮的键盘。 - mpeerman
可能是Android检测OnScreen键盘上的Done按键的重复问题。 - Elltz
13个回答

0

你的Last Edittext .setOnEditorActionListener调用此方法自动触发API

我在LoginActivity中调用了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;
            }
        });

运行正常


0

在你的布局中使用这个类:

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

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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