My problem is I can't make the button I added in my custom listview to be clickable.
Here is the XML file of my custom listview:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="335dp"
android:layout_height="100dp"
android:minHeight="80dp"
android:maxHeight="250dp"
android:background="#ffffff"
android:id="#+id/list"
android:baselineAligned="false"
android:longClickable="false"
android:descendantFocusability="blocksDescendants"
android:clickable="false">
<Button
android:background="#drawable/grbgCan"
android:layout_width="15dp"
android:layout_height="20dp"
android:id="#+id/deleteMemo"
android:layout_gravity="start"
android:layout_marginLeft="270dp"
android:layout_marginTop="5dp"
android:duplicateParentState="false"
android:clickable="true" />
<TextView
android:text="Text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/id"
android:layout_marginLeft="290dp"
android:layout_marginTop="-20dp"
android:layout_marginRight="15dp"
android:clickable="true" />
<TextView
android:id="#+id/top"
android:text="Title"
android:textColor="#ff7e7777"
android:textAppearance="?android:attr/textAppearanceSmall"
android:layout_width="255.5dp"
android:layout_height="19.9dp"
android:paddingLeft="10dp"
android:layout_marginTop="-20dp" />
<TextView
android:id="#+id/bottom"
android:textColor="#ff7e7777"
android:textAppearance="?android:attr/textAppearanceSmall"
android:layout_width="match_parent"
android:layout_height="63.3dp"
android:paddingLeft="50dp"
android:layout_gravity="left"
android:text="Note" />
<TextView
android:text="Text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/date"
android:layout_marginLeft="250dp"
android:layout_marginRight="5dp" />
</LinearLayout>
In my main activity I tried the Btn.Click event but it only produces an error. And from what I've read in similar problems, their button was initialize in their Array Adapter but I'm using SimpleCursorAdapter because I'm fetching data from my sqlite database.
What should I do then? Please don't give me java codes because some them aren't applicable in xamarin studio since it's c#. Thanks.
You can't do it this way because you have a lot of same items in ListView with same ids
You must set OnClickListener to your button in your Adapter's getView() method like this
(this is java code for android studio, so it can differ from c# code, but gist is the same)
Button btn = (Button) convertView.findViewById(R.id.deleteMemo);
btn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
//here you go
}
});
Try something like this (If you don't have Fragments delete the view. below)
var _view = view.FindViewById<ListView>(Resource.Id.listView1);
if (_view.ChildCount > 0){
Button _button = (Button)_view.GetItemAtPosition(0).GetChildAt(0);
}
Because you have a lot of similar objects on a list this is the only way i think to access them,
Remember that item position is relative to the current visible items on the screen and you cant access items that are not visible
Related
I have created a custom toolbar. But when I put things like imageview, button etc it wont be below toolbar. I also tried android:layout_below but i either its not working or I put wrong id (i tried multiple ids). Its just mixing with the toolbar.
In the code the imageview is merging with the toolbar and i want the imageview to be below it.
Thanks for anyone who answers
code:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/list"
android:layout_width="match_parent"
android:layout_height="match_parent">
<include
android:id="#+id/toolbar"
layout="#layout/toolbar" />
<ImageView
android:id="#+id/icon"
android:layout_below="#id/toolbar"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:background="#drawable/shoppingcart"
android:layout_width="100dp"
android:layout_height="100dp"
/>
<android.support.design.widget.TextInputLayout
android:layout_below="#+id/icon"
android:id="#+id/forgot_input_email"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<EditText
android:id="#+id/forgot_email"
android:hint="Enter groceries"
android:inputType="textCapWords"
android:maxLines="1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
/>
</android.support.design.widget.TextInputLayout>
P.s.
include is just the normal toolbar settings
I got my answer! I had to put on image view tag android:layout_marginTop="?attr/actionBarSize", it just do it below the height of the toolbar/actionbar Like that:
<ImageView
android:layout_marginTop="?attr/actionBarSize"
android:id="#+id/icon"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:background="#drawable/shoppingcart"
android:layout_width="100dp"
android:layout_height="100dp"
I am trying to implement a bottom sheet in Xamarin.Android and I want to disable all touches on everything that is not the bottom sheet (i.e. main layout), when the bottom sheet is active.
Main.axml:
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="#+id/main_layout">
<include
android:id="#+id/toolbar"
layout="#layout/toolbar" />
<!-- Main Layou -->
<FrameLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="#+id/main_content"
android:paddingLeft="16dp"
android:paddingRight="16dp" >
<Button
android:id="#+id/btn_test"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="#string/logout"
android:layout_gravity="center" />
<android.support.design.widget.FloatingActionButton
android:id="#+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|right"
android:layout_margin="16dp"
android:clickable="true"
android:src="#drawable/ic_plus" />
</FrameLayout>
<FrameLayout
android:id="#+id/tint"
android:background="#000000"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<!-- Bottom sheet -->
<FrameLayout
android:id="#+id/bottom_fragment_container"
android:layout_width="match_parent"
android:layout_height="160dp"
android:background="#E0E0E0"
android:layout_gravity="bottom"
android:elevation="16dp"
android:translationY="160dp" />
I tried iterating over all the children and disabling them, but that changes the appearance of the button and I want to avoid that. I also tried setting the Enabled property of the layout to false, but the button was still touchable.
I think i need to somehow intercept all touches before they reach the button (and everything else that will be there later), but I don't know how to do that. By intercepting all touches I could also implement hiding of the bottom sheet after those touches.
Create a transparent RelativeLayout that covers the entire screen and use the android:clickable="true" property in it to make sure it intercepts all the click events.
Then add android:layout_alignParentBottom to your bottom sheet and put it inside this newly created RelativeLayout. This way it'll appear at the bottom and everything else won't be clickable.
<FrameLayout>
<!-- Main Layout -->
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#0000"
android:clickable="true">
<FrameLayout
android:id="#+id/bottom_fragment_container"
android:layout_width="match_parent"
android:layout_height="160dp"
android:background="#E0E0E0"
android:layout_alignParentBottom="true"
android:elevation="16dp"
android:translationY="160dp" />
</RelativeLayout>
</FrameLayout>
I'm newbie in Xamarin. I'm creating a simple application with Xamarin. I have a table view in my layout. Each row of table view displays a modal window. For example the first row is used to get the full name of the user. I want to display the modal window shown (rightside) in the given figure.
I have created a Layout for the same as given below
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#ffffff"
android:minWidth="25px"
android:minHeight="25px">
<EditText
android:inputType="textPersonName"
android:layout_width="200dp"
android:layout_height="55px"
android:id="#+id/txtFirstName"
android:ellipsize="none"
android:gravity="fill_horizontal"
android:hint="First Name"
android:height="55dp"
android:layout_marginTop="100dp"
android:layout_gravity="center_horizontal"
android:textColor="#000000" />
<EditText
android:inputType="textPersonName"
android:layout_width="200dp"
android:layout_height="55px"
android:id="#+id/txtLastName"
android:ellipsize="none"
android:gravity="fill_horizontal"
android:hint="Last Name"
android:height="55dp"
android:layout_marginTop="25dp"
android:layout_gravity="center_horizontal"
android:textColor="#000000" />
<RelativeLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#ffffff"
android:minWidth="25px"
android:minHeight="25px"
android:layout_marginTop="25dp">
<Button
android:text="Save"
android:layout_width="100dp"
android:layout_height="55px"
android:id="#+id/btnSave"
android:gravity="center"
android:layout_gravity="center_horizontal"
android:layout_marginTop="0dp"
android:textColor="#000"
android:layout_marginLeft="165dp" />
</RelativeLayout>
</LinearLayout>
And my code to display popup
tblrName.Click += delegate
{
//Want to display the modal window here.
};
I tried to set the layout using setContentView() but it opens a new window while I want to display the modal window in same screen itself.
Can anybody help me to achieve this?
Use AlertDialog.
In your click event, try this:
var alert = new AlertDialog.Builder(this);
alert.SetView(LayoutInflater.Inflate(Resource.Layout.Modal, null));
alert.Create().Show();
To get values from AlertDialog, you could keep a reference to the EditText in the dialog. And then, in your Save button click event, simply call EditText.Text to get the value.
i'm very much a beginner with programming.. but i'm trying to develop a small android app using monodroid to store contacts in and call contacts from the address book.
Please forgive me if this is very simple but i have a text field and a button, both of which are in my Resources XML file and i want to be able to CLEAR the text in the textbox by clicking the button which will obviously be called 'Clear'.. all help is much appreciated as i'm looking forward to learning more.
Let's say you have the following layout, which I assume is similar to what you have already:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView
android:id="#+id/TextField"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<Button
android:id="#+id/Clear"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Clear"/>
</LinearLayout>
Then in your activity's code you can do:
var clear = FindViewById<Button>(Resource.Id.Clear);
var textField = FindViewById<TextView>(Resource.Id.TextField);
clear.Click += (src, args) =>
{
textField.Text = "";
};
how about this?
Button ClearText=(Button) findViewById(R.id.ClearText);
ClearText.setOnClickListener(new View.OnClickListener(){
public void onClick(View v){
EditText textedit=(EditText) findViewById(R.id.textedit);
textedit.setText("");
}
});
clear must be registered as onclick handler for the button in the layout file like this
<ImageButton android:id="#+id/ClearText"
android:text="#string/ClearText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
**android:onClick="clear"**
android:src="#drawable/clear"
/>
I'm working on an application for the Android OS using Android Mono so I can program it in C#. All things are working well except for this one issue I am getting.
Basically, I have a sample code that changes the text of a button on every click. I tried to modify the sample code so that instead of changing the button, it changes the text of an xml textview object and, upon getting this error, I replaced it with an edittext object. I replaced it because it seemed common sense that editing an edittext would be easier than a textview.
Anywho, I got the same error at the same place. Whenever I try to change the textview.text or the edittext.text, the program freezes up and I get the error 'Unknown Member".
Here is the C# portion of the code:
Button ampButton = FindViewById<Button>(Resource.Id.CurrentButton);
ampButton.Click += delegate
{
SetContentView(Resource.Layout.AmpScreen);
Button ampButton2 = FindViewById<Button>(Resource.Id.CurrentButtonamp);
EditText ampData = FindViewById<EditText>(Resource.Id.ampdata);
ampButton2.Click += delegate
{
ampButton2.Text = string.Format("{0} clicks!", count2++);
ampData.Text = ampButton2.Text;
//string temp = Convert.ToString(count2) + " clicks!";
//ampData.Text=temp;
//count2++;
};
};
Here are the XML sections that are affected:
From the Main.xml:
<Button
android:id="#+id/CurrentButton"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="#string/Amp"
/>
From the AmpScreen.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<ImageView id="#+id/ampImage"
android:layout_width="50px"
android:layout_height="50px"
android:layout_gravity="center"
android:src="#drawable/amp"/>
<EditText id="#+id/ampdata"
android:layout_gravity="center"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Loading"/>
<Button
android:id="#+id/CurrentButtonamp"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Re-scan"
/>
<Button
android:id="#+id/homeButtonamp"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Back"
/>
</LinearLayout>
Looks like a simple issue with your xml.
In your AmpScreen.xml on the EditText element:
id="#+id/ampdata"
should be:
android:id="#+id/ampdata"