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
这绝对对你有帮助。试试这段代码:点击一个按钮,你可以放一个,两个或三个按钮与警报对话框…
SingleButtton.setOnClickListener(new View.OnClickListener() {
public void onClick(View arg0) {
// Creating alert Dialog with one Button
AlertDialog alertDialog = new AlertDialog.Builder(AlertDialogActivity.this).create();
// Setting Dialog Title
alertDialog.setTitle("Alert Dialog");
// Setting Dialog Message
alertDialog.setMessage("Welcome to Android Application");
// Setting Icon to Dialog
alertDialog.setIcon(R.drawable.tick);
// Setting OK Button
alertDialog.setButton("OK", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,int which)
{
// Write your code here to execute after dialog closed
Toast.makeText(getApplicationContext(),"You clicked on OK", Toast.LENGTH_SHORT).show();
}
});
// Showing Alert Message
alertDialog.show();
}
});
btnAlertTwoBtns.setOnClickListener(new View.OnClickListener() {
public void onClick(View arg0) {
// Creating alert Dialog with two Buttons
AlertDialog.Builder alertDialog = new AlertDialog.Builder(AlertDialogActivity.this);
// Setting Dialog Title
alertDialog.setTitle("Confirm Delete...");
// Setting Dialog Message
alertDialog.setMessage("Are you sure you want delete this?");
// Setting Icon to Dialog
alertDialog.setIcon(R.drawable.delete);
// Setting Positive "Yes" Button
alertDialog.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" Button
alertDialog.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 Message
alertDialog.show();
}
});
btnAlertThreeBtns.setOnClickListener(new View.OnClickListener() {
public void onClick(View arg0) {
// Creating alert Dialog with three Buttons
AlertDialog.Builder alertDialog = new AlertDialog.Builder(
AlertDialogActivity.this);
// Setting Dialog Title
alertDialog.setTitle("Save File...");
// Setting Dialog Message
alertDialog.setMessage("Do you want to save this file?");
// Setting Icon to Dialog
alertDialog.setIcon(R.drawable.save);
// Setting Positive Yes Button
alertDialog.setPositiveButton("YES",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int which) {
// User pressed Cancel button. Write Logic Here
Toast.makeText(getApplicationContext(),
"You clicked on YES",
Toast.LENGTH_SHORT).show();
}
});
// Setting Negative No Button... Neutral means in between yes and cancel button
alertDialog.setNeutralButton("NO",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int which) {
// User pressed No button. Write Logic Here
Toast.makeText(getApplicationContext(),
"You clicked on NO", Toast.LENGTH_SHORT)
.show();
}
});
// Setting Positive "Cancel" Button
alertDialog.setNegativeButton("Cancel",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int which) {
// User pressed Cancel button. Write Logic Here
Toast.makeText(getApplicationContext(),
"You clicked on Cancel",
Toast.LENGTH_SHORT).show();
}
});
// Showing Alert Message
alertDialog.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>-->
public void showSimpleDialog(View view) {
// Use the Builder class for convenient dialog construction
AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
builder.setCancelable(false);
builder.setTitle("AlertDialog Title");
builder.setMessage("Simple Dialog Message");
builder.setPositiveButton("OK!!!", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int id) {
//
}
})
.setNegativeButton("Cancel ", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
}
});
// Create the AlertDialog object and return it
builder.create().show();
}
也可以看看我的关于Android对话的博客,你会在这里找到所有的细节:http://www.fahmapps.com/2016/09/26/dialogs-in-android-part1/。
您可以使用AlertDialog创建对话框。构建器
试试这个:
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage("Are you sure you want to delete this entry?");
builder.setPositiveButton("Yes, please", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
//perform any action
Toast.makeText(getApplicationContext(), "Yes clicked", Toast.LENGTH_SHORT).show();
}
});
builder.setNegativeButton("No", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
//perform any action
Toast.makeText(getApplicationContext(), "No clicked", Toast.LENGTH_SHORT).show();
}
});
//creating alert dialog
AlertDialog alertDialog = builder.create();
alertDialog.show();
要改变Alert对话框的正反按钮的颜色,你可以在alertDialog.show()后面写下面两行;
alertDialog.getButton(AlertDialog.BUTTON_POSITIVE).setTextColor(getResources().getColor(R.color.colorPrimary));
alertDialog.getButton(AlertDialog.BUTTON_NEGATIVE).setTextColor(getResources().getColor(R.color.colorPrimaryDark));
这是在kotlin中完成的
val builder: AlertDialog.Builder = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
AlertDialog.Builder(this, android.R.style.Theme_Material_Dialog_Alert)
} else {
AlertDialog.Builder(this)
}
builder.setTitle("Delete Alert!")
.setMessage("Are you want to delete this entry?")
.setPositiveButton("YES") { dialog, which ->
}
.setNegativeButton("NO") { dialog, which ->
}
.setIcon(R.drawable.ic_launcher_foreground)
.show()