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
带有编辑文本的警报对话框
AlertDialog.Builder builder = new AlertDialog.Builder(context);//Context is activity context
final EditText input = new EditText(context);
builder.setTitle(getString(R.string.remove_item_dialog_title));
builder.setMessage(getString(R.string.dialog_message_remove_item));
builder.setTitle(getString(R.string.update_qty));
builder.setMessage("");
LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.MATCH_PARENT);
input.setLayoutParams(lp);
input.setHint(getString(R.string.enter_qty));
input.setTextColor(ContextCompat.getColor(context, R.color.textColor));
input.setInputType(InputType.TYPE_CLASS_NUMBER);
input.setText("String in edit text you want");
builder.setView(input);
builder.setPositiveButton(getString(android.R.string.ok),
(dialog, which) -> {
//Positive button click event
});
builder.setNegativeButton(getString(android.R.string.cancel),
(dialog, which) -> {
//Negative button click event
});
AlertDialog dialog = builder.create();
dialog.show();
其他回答
使用Anko (Kotlin开发人员的官方库),您可以简单地使用
alert("Alert title").show()
或者更复杂的:
alert("Hi, I'm Roy", "Have you tried turning it off and on again?") {
yesButton { toast("Oh…") }
noButton {}
}.show()
导入Anko:
implementation "org.jetbrains.anko:anko:0.10.8"
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();
你可以试试这个....
AlertDialog.Builder dialog = new AlertDialog.Builder(MainActivity.this);
dialog.setCancelable(false);
dialog.setTitle("Dialog on Android");
dialog.setMessage("Are you sure you want to delete this entry?" );
dialog.setPositiveButton("Delete", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int id) {
//Action for "Delete".
}
})
.setNegativeButton("Cancel ", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
//Action for "Cancel".
}
});
final AlertDialog alert = dialog.create();
alert.show();
欲了解更多信息,请查看此链接…
你也可以尝试这种方式,它将为你提供材料样式的对话框
private void showDialog()
{
String text2 = "<font color=#212121>Medi Notification</font>";//for custom title color
AlertDialog.Builder builder = new AlertDialog.Builder(this, R.style.AppCompatAlertDialogStyle);
builder.setTitle(Html.fromHtml(text2));
String text3 = "<font color=#A4A4A4>You can complete your profile now or start using the app and come back later</font>";//for custom message
builder.setMessage(Html.fromHtml(text3));
builder.setPositiveButton("DELETE", new DialogInterface.OnClickListener()
{
@Override
public void onClick(DialogInterface dialog, int which)
{
toast = Toast.makeText(getApplicationContext(), "DELETE", Toast.LENGTH_SHORT);
toast.setGravity(Gravity.CENTER, 0, 0);
toast.show();
}
});
builder.setNegativeButton("CANCEL", new DialogInterface.OnClickListener()
{
@Override
public void onClick(DialogInterface dialog, int which)
{
toast = Toast.makeText(getApplicationContext(), "CANCEL", Toast.LENGTH_SHORT);
toast.setGravity(Gravity.CENTER, 0, 0);
toast.show();
}
});
builder.show();
}
你可以创建Activity并扩展AppCompatActivity。然后在清单中加入下一种风格
<activity android:name=".YourCustomDialog"
android:theme="Theme.AppCompat.Light.Dialog">
</activity>
充气它的按钮和TextViews
然后把这个当做一个对话。
例如,在linearLayout中,我填充下一个参数:
android:layout_width="300dp"
android:layout_height="wrap_content"