确定在我的应用程序,我对用户输入一个号的字段。我有字段设置为只接受数字。当用户点击该领域它带来了键盘。在键盘上(上ICS)有一个完成按钮。我想为完成按钮键盘上的触发提交按钮,我有我的应用程序。我的code是如下:
包com.michaelpeerman.probability;
进口android.app.Activity;
进口android.app.ProgressDialog;
进口android.content.DialogInterface;
进口android.content.DialogInterface.OnCancelListener;
进口android.os.Bundle;
进口android.os.Handler;
进口android.os.Message;
进口android.view.View;
进口android.view.View.OnClickListener;
进口android.widget.Button;
进口android.widget.EditText;
进口android.widget.TextView;
导入了java.util.Random;
公共类ProbabilityActivity扩展活动实现OnClickListener {
私人按钮提交;
ProgressDialog对话框;
INT增量;
主题背景;
诠释头= 0;
诠释尾= 0;
公共无效的onCreate(包paramBundle){
super.onCreate(paramBundle);
的setContentView(R.layout.main);
提交=((按钮)findViewById(R.id.submit));
submit.setOnClickListener(本);
}
公共无效的onClick(视图查看){
增量= 1;
对话框=新ProgressDialog(本);
dialog.setCancelable(真正的);
dialog.setMessage(翻转硬币......);
dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
dialog.setProgress(0);
最大的EditText =(EditText上)findViewById(R.id.number);
INT最大=的Integer.parseInt(max.getText()的toString());
dialog.setMax(最大);
dialog.show();
dialog.setOnCancelListener(新OnCancelListener(){
公共无效OnCancel的(DialogInterface对话){
background.interrupt();
TextView的结果=(TextView中)findViewById(R.id.result);
result.setText(头:+头+\ ntails:+尾);
}});
背景=新主题(新的Runnable(){
公共无效的run(){
头= 0;
尾= 0;
为(诠释J = 0;!Thread.interrupted()&安培;&安培; J&其中; dialog.getMax(); J ++){
INT I = 1 +新的随机()nextInt(2)。
如果(ⅰ== 1)
头++;
如果(ⅰ== 2)
尾巴++;
progressHandler.sendMessage(progressHandler.obtainMessage());
}
}
});
background.start();
}
处理器progressHandler =新的处理程序(){
公共无效的handleMessage(信息MSG){
dialog.incrementProgressBy(增量);
如果(dialog.getProgress()== dialog.getMax()){
dialog.dismiss();
TextView的结果=(TextView中)findViewById(R.id.result);
result.setText(头:+头+\ ntails:+尾);
}
}
};
}
解决方案
您可以使用这其中也(设置一个特殊的监听器当上的EditText执行的动作被称为),它的作品无论是做,RETURN:
max.setOnEditorActionListener(新OnEditorActionListener(){
公共布尔onEditorAction(TextView的V,INT actionId,KeyEvent的事件){
如果((事件= NULL和放大器;!及(event.getKey code()== KeyEvent.KEY code_ENTER))||(actionId == EditorInfo.IME_ACTION_DONE)){
Log.i(TAG,输入pressed);
}
返回false;
}
});
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);
}
}
};
}
解决方案
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() {
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;
}
});