我有一个对话框与EditText进行输入。当我单击对话框上的“是”按钮时，它将验证输入，然后关闭对话框。但是，如果输入错误，我希望保持在同一对话框中。每次无论输入是什么，当我单击“否”按钮时，对话框都会自动关闭。如何禁用此功能？顺便说一句，我在对话框中使用了PositiveButton和NegativeButton。
当前回答
它可以用最简单的方法构建：
带有自定义视图和两个按钮（正和负）的警报对话框。
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity()).setTitle(getString(R.string.select_period));
builder.setPositiveButton(getString(R.string.ok), null);
builder.setNegativeButton(getString(R.string.cancel), new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// Click of Cancel Button
}
});
LayoutInflater li = LayoutInflater.from(getActivity());
View promptsView = li.inflate(R.layout.dialog_date_picker, null, false);
builder.setView(promptsView);
DatePicker startDatePicker = (DatePicker)promptsView.findViewById(R.id.startDatePicker);
DatePicker endDatePicker = (DatePicker)promptsView.findViewById(R.id.endDatePicker);
final AlertDialog alertDialog = builder.create();
alertDialog.show();
Button theButton = alertDialog.getButton(DialogInterface.BUTTON_POSITIVE);
theButton.setOnClickListener(new CustomListener(alertDialog, startDatePicker, endDatePicker));
警报日志正面按钮的CustomClickLister：
private class CustomListener implements View.OnClickListener {
private final Dialog dialog;
private DatePicker mStartDp, mEndDp;
public CustomListener(Dialog dialog, DatePicker dS, DatePicker dE) {
this.dialog = dialog;
mStartDp = dS;
mEndDp = dE;
}
@Override
public void onClick(View v) {
int day1 = mStartDp.getDayOfMonth();
int month1= mStartDp.getMonth();
int year1 = mStartDp.getYear();
Calendar cal1 = Calendar.getInstance();
cal1.set(Calendar.YEAR, year1);
cal1.set(Calendar.MONTH, month1);
cal1.set(Calendar.DAY_OF_MONTH, day1);
int day2 = mEndDp.getDayOfMonth();
int month2= mEndDp.getMonth();
int year2 = mEndDp.getYear();
Calendar cal2 = Calendar.getInstance();
cal2.set(Calendar.YEAR, year2);
cal2.set(Calendar.MONTH, month2);
cal2.set(Calendar.DAY_OF_MONTH, day2);
if(cal2.getTimeInMillis()>=cal1.getTimeInMillis()){
dialog.dismiss();
Log.i("Dialog", "Dismiss");
// Condition is satisfied so do dialog dismiss
}else {
Log.i("Dialog", "Do not Dismiss");
// Condition is not satisfied so do not dialog dismiss
}
}
}
Done
其他回答
对于ProgressDialogs
要防止对话框自动关闭，必须在显示ProgressDialog后设置OnClickListener，如下所示：
connectingDialog = new ProgressDialog(this);
connectingDialog.setCancelable(false);
connectingDialog.setCanceledOnTouchOutside(false);
// Create the button but set the listener to a null object.
connectingDialog.setButton(DialogInterface.BUTTON_NEGATIVE, "Cancel",
(DialogInterface.OnClickListener) null )
// Show the dialog so we can then get the button from the view.
connectingDialog.show();
// Get the button from the view.
Button dialogButton = connectingDialog.getButton( DialogInterface.BUTTON_NEGATIVE);
// Set the onClickListener here, in the view.
dialogButton.setOnClickListener( new View.OnClickListener() {
@Override
public void onClick ( View v ) {
// Dialog will not get dismissed until you call dismiss() explicitly.
}
});
编辑：这只适用于一些评论中提到的API 8+。
这是一个迟到的回答，但您可以在AlertDialog中添加一个onShowListener，然后可以覆盖按钮的onClickListener。
final AlertDialog dialog = new AlertDialog.Builder(context)
.setView(v)
.setTitle(R.string.my_title)
.setPositiveButton(android.R.string.ok, null) //Set to null. We override the onclick
.setNegativeButton(android.R.string.cancel, null)
.create();
dialog.setOnShowListener(new DialogInterface.OnShowListener() {
@Override
public void onShow(DialogInterface dialogInterface) {
Button button = ((AlertDialog) dialog).getButton(AlertDialog.BUTTON_POSITIVE);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
// TODO Do something
//Dismiss once everything is OK.
dialog.dismiss();
}
});
}
});
dialog.show();
我编写了一个简单的类（AlertDialogBuilder），您可以使用它在按下对话框按钮时禁用自动关闭功能。
它还与Android 1.6兼容，因此它不使用OnShowListener（仅API>=8可用）。
因此，您可以使用此CustomAlertDialogBuilder，而不是使用AlertDialogBuilder。最重要的部分是不应该调用create（），而应该只调用show（）方法。我添加了setCanceledOnTouchOutside（）和setOnDismissListener等方法，这样您仍然可以直接在生成器上设置它们。
我在Android 1.6、2.x、3.x和4.x上测试了它，所以它应该工作得很好。如果你发现一些问题，请在这里评论。
package com.droidahead.lib.utils;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.view.View;
import android.view.View.OnClickListener;
public class CustomAlertDialogBuilder extends AlertDialog.Builder {
/**
* Click listeners
*/
private DialogInterface.OnClickListener mPositiveButtonListener = null;
private DialogInterface.OnClickListener mNegativeButtonListener = null;
private DialogInterface.OnClickListener mNeutralButtonListener = null;
/**
* Buttons text
*/
private CharSequence mPositiveButtonText = null;
private CharSequence mNegativeButtonText = null;
private CharSequence mNeutralButtonText = null;
private DialogInterface.OnDismissListener mOnDismissListener = null;
private Boolean mCancelOnTouchOutside = null;
public CustomAlertDialogBuilder(Context context) {
super(context);
}
public CustomAlertDialogBuilder setOnDismissListener (DialogInterface.OnDismissListener listener) {
mOnDismissListener = listener;
return this;
}
@Override
public CustomAlertDialogBuilder setNegativeButton(CharSequence text, DialogInterface.OnClickListener listener) {
mNegativeButtonListener = listener;
mNegativeButtonText = text;
return this;
}
@Override
public CustomAlertDialogBuilder setNeutralButton(CharSequence text, DialogInterface.OnClickListener listener) {
mNeutralButtonListener = listener;
mNeutralButtonText = text;
return this;
}
@Override
public CustomAlertDialogBuilder setPositiveButton(CharSequence text, DialogInterface.OnClickListener listener) {
mPositiveButtonListener = listener;
mPositiveButtonText = text;
return this;
}
@Override
public CustomAlertDialogBuilder setNegativeButton(int textId, DialogInterface.OnClickListener listener) {
setNegativeButton(getContext().getString(textId), listener);
return this;
}
@Override
public CustomAlertDialogBuilder setNeutralButton(int textId, DialogInterface.OnClickListener listener) {
setNeutralButton(getContext().getString(textId), listener);
return this;
}
@Override
public CustomAlertDialogBuilder setPositiveButton(int textId, DialogInterface.OnClickListener listener) {
setPositiveButton(getContext().getString(textId), listener);
return this;
}
public CustomAlertDialogBuilder setCanceledOnTouchOutside (boolean cancelOnTouchOutside) {
mCancelOnTouchOutside = cancelOnTouchOutside;
return this;
}
@Override
public AlertDialog create() {
throw new UnsupportedOperationException("CustomAlertDialogBuilder.create(): use show() instead..");
}
@Override
public AlertDialog show() {
final AlertDialog alertDialog = super.create();
DialogInterface.OnClickListener emptyOnClickListener = new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) { }
};
// Enable buttons (needed for Android 1.6) - otherwise later getButton() returns null
if (mPositiveButtonText != null) {
alertDialog.setButton(AlertDialog.BUTTON_POSITIVE, mPositiveButtonText, emptyOnClickListener);
}
if (mNegativeButtonText != null) {
alertDialog.setButton(AlertDialog.BUTTON_NEGATIVE, mNegativeButtonText, emptyOnClickListener);
}
if (mNeutralButtonText != null) {
alertDialog.setButton(AlertDialog.BUTTON_NEUTRAL, mNeutralButtonText, emptyOnClickListener);
}
// Set OnDismissListener if available
if (mOnDismissListener != null) {
alertDialog.setOnDismissListener(mOnDismissListener);
}
if (mCancelOnTouchOutside != null) {
alertDialog.setCanceledOnTouchOutside(mCancelOnTouchOutside);
}
alertDialog.show();
// Set the OnClickListener directly on the Button object, avoiding the auto-dismiss feature
// IMPORTANT: this must be after alert.show(), otherwise the button doesn't exist..
// If the listeners are null don't do anything so that they will still dismiss the dialog when clicked
if (mPositiveButtonListener != null) {
alertDialog.getButton(AlertDialog.BUTTON_POSITIVE).setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
mPositiveButtonListener.onClick(alertDialog, AlertDialog.BUTTON_POSITIVE);
}
});
}
if (mNegativeButtonListener != null) {
alertDialog.getButton(AlertDialog.BUTTON_NEGATIVE).setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
mNegativeButtonListener.onClick(alertDialog, AlertDialog.BUTTON_NEGATIVE);
}
});
}
if (mNeutralButtonListener != null) {
alertDialog.getButton(AlertDialog.BUTTON_NEUTRAL).setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
mNeutralButtonListener.onClick(alertDialog, AlertDialog.BUTTON_NEUTRAL);
}
});
}
return alertDialog;
}
}
EDIT下面是一个关于如何使用CustomAlertDialogBuilder的小示例：
// Create the CustomAlertDialogBuilder
CustomAlertDialogBuilder dialogBuilder = new CustomAlertDialogBuilder(context);
// Set the usual data, as you would do with AlertDialog.Builder
dialogBuilder.setIcon(R.drawable.icon);
dialogBuilder.setTitle("Dialog title");
dialogBuilder.setMessage("Some text..");
// Set your buttons OnClickListeners
dialogBuilder.setPositiveButton ("Button 1", new DialogInterface.OnClickListener() {
public void onClick (DialogInterface dialog, int which) {
// Do something...
// Dialog will not dismiss when the button is clicked
// call dialog.dismiss() to actually dismiss it.
}
});
// By passing null as the OnClickListener the dialog will dismiss when the button is clicked.
dialogBuilder.setNegativeButton ("Close", null);
// Set the OnDismissListener (if you need it)
dialogBuilder.setOnDismissListener(new DialogInterface.OnDismissListener() {
public void onDismiss(DialogInterface dialog) {
// dialog was just dismissed..
}
});
// (optional) set whether to dismiss dialog when touching outside
dialogBuilder.setCanceledOnTouchOutside(false);
// Show the dialog
dialogBuilder.show();
干杯
Yuvi
它可以用最简单的方法构建：
带有自定义视图和两个按钮（正和负）的警报对话框。
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity()).setTitle(getString(R.string.select_period));
builder.setPositiveButton(getString(R.string.ok), null);
builder.setNegativeButton(getString(R.string.cancel), new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// Click of Cancel Button
}
});
LayoutInflater li = LayoutInflater.from(getActivity());
View promptsView = li.inflate(R.layout.dialog_date_picker, null, false);
builder.setView(promptsView);
DatePicker startDatePicker = (DatePicker)promptsView.findViewById(R.id.startDatePicker);
DatePicker endDatePicker = (DatePicker)promptsView.findViewById(R.id.endDatePicker);
final AlertDialog alertDialog = builder.create();
alertDialog.show();
Button theButton = alertDialog.getButton(DialogInterface.BUTTON_POSITIVE);
theButton.setOnClickListener(new CustomListener(alertDialog, startDatePicker, endDatePicker));
警报日志正面按钮的CustomClickLister：
private class CustomListener implements View.OnClickListener {
private final Dialog dialog;
private DatePicker mStartDp, mEndDp;
public CustomListener(Dialog dialog, DatePicker dS, DatePicker dE) {
this.dialog = dialog;
mStartDp = dS;
mEndDp = dE;
}
@Override
public void onClick(View v) {
int day1 = mStartDp.getDayOfMonth();
int month1= mStartDp.getMonth();
int year1 = mStartDp.getYear();
Calendar cal1 = Calendar.getInstance();
cal1.set(Calendar.YEAR, year1);
cal1.set(Calendar.MONTH, month1);
cal1.set(Calendar.DAY_OF_MONTH, day1);
int day2 = mEndDp.getDayOfMonth();
int month2= mEndDp.getMonth();
int year2 = mEndDp.getYear();
Calendar cal2 = Calendar.getInstance();
cal2.set(Calendar.YEAR, year2);
cal2.set(Calendar.MONTH, month2);
cal2.set(Calendar.DAY_OF_MONTH, day2);
if(cal2.getTimeInMillis()>=cal1.getTimeInMillis()){
dialog.dismiss();
Log.i("Dialog", "Dismiss");
// Condition is satisfied so do dialog dismiss
}else {
Log.i("Dialog", "Do not Dismiss");
// Condition is not satisfied so do not dialog dismiss
}
}
}
Done
这段代码对你有用，因为我有一个类似的问题，这对我有用。：）
1-重写片段对话框类中的Onstart（）方法。
@Override
public void onStart() {
super.onStart();
final AlertDialog D = (AlertDialog) getDialog();
if (D != null) {
Button positive = (Button) D.getButton(Dialog.BUTTON_POSITIVE);
positive.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
if (edittext.equals("")) {
Toast.makeText(getActivity(), "EditText empty",Toast.LENGTH_SHORT).show();
} else {
D.dismiss(); //dissmiss dialog
}
}
});
}
}
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