我想显示一个对话框/弹出窗口,向用户显示一条消息“您确定要删除此条目吗?”,其中一个按钮说“删除”。当点击Delete时,它应该删除该条目,否则什么都不删除。
我已经为这些按钮写了一个点击监听器,但我如何调用对话框或弹出窗口及其功能?
我想显示一个对话框/弹出窗口,向用户显示一条消息“您确定要删除此条目吗?”,其中一个按钮说“删除”。当点击Delete时,它应该删除该条目,否则什么都不删除。
我已经为这些按钮写了一个点击监听器,但我如何调用对话框或弹出窗口及其功能?
当前回答
试试下面的代码:
AlertDialog.Builder builder1 = new AlertDialog.Builder(context);
builder1.setMessage("Write your message here.");
builder1.setCancelable(true);
builder1.setPositiveButton(
"Yes",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
}
});
builder1.setNegativeButton(
"No",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
}
});
AlertDialog alert11 = builder1.create();
alert11.show();
其他回答
你可以使用下面的代码:
AlertDialog.Builder alertDialog2 = new AlertDialog.Builder(
AlertDialogActivity.this);
// Setting Dialog Title
alertDialog2.setTitle("Confirm Delete...");
// Setting Dialog Message
alertDialog2.setMessage("Are you sure you want delete this file?");
// Setting Icon to Dialog
alertDialog2.setIcon(R.drawable.delete);
// Setting Positive "Yes" Btn
alertDialog2.setPositiveButton("YES",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
// Write your code here to execute after dialog
Toast.makeText(getApplicationContext(),
"You clicked on YES", Toast.LENGTH_SHORT)
.show();
}
});
// Setting Negative "NO" Btn
alertDialog2.setNegativeButton("NO",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
// Write your code here to execute after dialog
Toast.makeText(getApplicationContext(),
"You clicked on NO", Toast.LENGTH_SHORT)
.show();
dialog.cancel();
}
});
// Showing Alert Dialog
alertDialog2.show();
Kotlin定制对话框: 如果你想创建自定义对话框
Dialog(activity!!, R.style.LoadingIndicatorDialogStyle)
.apply {
// requestWindowFeature(Window.FEATURE_NO_TITLE)
setCancelable(true)
setContentView(R.layout.define_your_custom_view_id_here)
//access your custom view buttons/editText like below.z
val createBt = findViewById<TextView>(R.id.clipboard_create_project)
val cancelBt = findViewById<TextView>(R.id.clipboard_cancel_project)
val clipboard_et = findViewById<TextView>(R.id.clipboard_et)
val manualOption =
findViewById<TextView>(R.id.clipboard_manual_add_project_option)
//if you want to perform any operation on the button do like this
createBt.setOnClickListener {
//handle your button click here
val enteredData = clipboard_et.text.toString()
if (enteredData.isEmpty()) {
Utils.toast("Enter project details")
} else {
navigateToAddProject(enteredData, true)
dismiss()
}
}
cancelBt.setOnClickListener {
dismiss()
}
manualOption.setOnClickListener {
navigateToAddProject("", false)
dismiss()
}
show()
}
在style.xml中创建LoadingIndicatorDialogStyle
<style name="LoadingIndicatorDialogStyle" parent="Theme.AppCompat.Light.Dialog.Alert">
<item name="android:windowIsTranslucent">true</item>
<item name="android:windowBackground">@android:color/transparent</item>
<item name="android:windowContentOverlay">@null</item>
<item name="android:windowNoTitle">true</item>
<item name="android:statusBarColor">@color/black_transperant</item>
<item name="android:layout_gravity">center</item>
<item name="android:background">@android:color/transparent</item>
<!--<item name="android:windowAnimationStyle">@style/MaterialDialogSheetAnimation</item>-->
使用AlertDialog。建造者:
AlertDialog alertDialog = new AlertDialog.Builder(this)
//set icon
.setIcon(android.R.drawable.ic_dialog_alert)
//set title
.setTitle("Are you sure to Exit")
//set message
.setMessage("Exiting will call finish() method")
//set positive button
.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
//set what would happen when positive button is clicked
finish();
}
})
//set negative button
.setNegativeButton("No", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
//set what should happen when negative button is clicked
Toast.makeText(getApplicationContext(),"Nothing Happened",Toast.LENGTH_LONG).show();
}
})
.show();
您将得到以下输出。
要查看警报对话框教程使用下面的链接。
Android警报对话框教程
在材质组件库中,你可以使用MaterialAlertDialogBuilder
MaterialAlertDialogBuilder(context)
.setMessage("Are you sure you want to delete this entry?")
.setPositiveButton("Delete") { dialog, which ->
// Respond to positive button press
}
.setNegativeButton("Cancel") { dialog, which ->
// Respond to positive button press
}
.show()
使用Compose 1.0。X你可以使用:
val openDialog = remember { mutableStateOf(true) }
if (openDialog.value) {
AlertDialog(
onDismissRequest = {
// Dismiss the dialog when the user clicks outside the dialog or on the back
// button. If you want to disable that functionality, simply use an empty
// onCloseRequest.
openDialog.value = false
},
title = null,
text = {
Text(
"Are you sure you want to delete this entry?"
)
},
confirmButton = {
TextButton(
onClick = {
openDialog.value = false
}
) {
Text("Delete")
}
},
dismissButton = {
TextButton(
onClick = {
openDialog.value = false
}
) {
Text("Cancel")
}
}
)
}
我想补充David Hedlund的回答,分享一个比他发布的更有活力的方法,这样当你有消极行为要做的时候,你可以使用它,当你没有的时候,我希望它能有所帮助。
private void showAlertDialog(@NonNull Context context, @NonNull String alertDialogTitle, @NonNull String alertDialogMessage, @NonNull String positiveButtonText, @Nullable String negativeButtonText, @NonNull final int positiveAction, @Nullable final Integer negativeAction, @NonNull boolean hasNegativeAction)
{
AlertDialog.Builder builder;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
builder = new AlertDialog.Builder(context, android.R.style.Theme_Material_Dialog_Alert);
} else {
builder = new AlertDialog.Builder(context);
}
builder.setTitle(alertDialogTitle)
.setMessage(alertDialogMessage)
.setPositiveButton(positiveButtonText, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
switch (positiveAction)
{
case 1:
//TODO:Do your positive action here
break;
}
}
});
if(hasNegativeAction || negativeAction!=null || negativeButtonText!=null)
{
builder.setNegativeButton(negativeButtonText, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
switch (negativeAction)
{
case 1:
//TODO:Do your negative action here
break;
//TODO: add cases when needed
}
}
});
}
builder.setIcon(android.R.drawable.ic_dialog_alert);
builder.show();
}