Develop Reference

I want to add the same cardView of my xml underneath the first one when i clic on the add Button and that can be maked endlessly

Hello i'm stcuk by a little problem,
I want to add a new CardView with same set of the first CardView underneath the first Cardview only when i click on my button and this action can be repetable endlessly.
Because i'm beginner in android and i have litterally no idea how to make that.
If anyone can Copy Past this code and help me i will be very happy.
I know the spinner is void but its for after i just want to duplicate this.
my activity :
package com.example.lif.test;
public class testActivity extends AppCompatActivity {
Spinner idSpinnerLance;
EditText idEdtTempsLance;
TextView idTextViewPuissance, textViewTitre;
Button idButtonAdd;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_test);
idSpinnerLance = findViewById(R.id.idSpinnerLance);
idEdtTempsLance = findViewById(R.id.idEdtTempsLance);
textViewTitre = findViewById(R.id.textViewTitre);
idTextViewPuissance = findViewById(R.id.idTextViewPuissance);
idButtonAdd = findViewById(R.id.idButtonAdd);
idButtonAdd.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
}
});
}
}
and my xml code :
<?xml version="1.0" encoding="utf-8"?>
<ScrollView
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:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".test.testActivity">
<androidx.cardview.widget.CardView
android:layout_width="match_parent"
android:layout_height="match_parent"
app:cardCornerRadius="10dp"
android:layout_margin="2dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Ajouter une lance :"
android:textColor="?android:textColorPrimary"
android:textSize="15dp"
android:textStyle="bold" />
<Spinner
android:id="#+id/idSpinnerLance"
android:layout_width="150dp"
android:layout_height="47dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Temps :"
android:textColor="?android:textColorPrimary"
android:textSize="15dp"
android:textStyle="bold" />
<EditText
android:id="#+id/idEdtTempsLance"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="phone" />
</LinearLayout>
</androidx.cardview.widget.CardView>
<Button
android:id="#+id/idButtonAdd"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="add" />
</LinearLayout>
</ScrollView>
thank you

If those CardView will contain different data you can use a RecyclerView and on button click you can add an item in the list and notify the adapter this will add a new item(here item is your CardView created in a different XML file) on screen.
This could be helpful
and this too

ButterKnife #onClick method for Button view is not working

I was updating an existing code by introducing dismiss button, and the onClick Butterknife method is not working for dismiss button, whereas its working for close button. In the below code, I am enabling the close button for some devices and for other devices I am enabling the dismiss button. I am quite unsure why this "dismiss" button is not working, whereas the close button is working fine. And both of them use the ButterKnife, onClick method - onSkip()
InfoActivity.java :
public class InfoActivity extends BccActiviy {
#BindView(R.id.ImageView_CloseView)
ImageView tCloseView;
#BindView(R.id.Dismiss)
Button tDismiss;
.....
#OnClick({R.id.Dismiss, R.id.ImageView_CloseView})
public void onSkip(View v) {
onDissmissPressed();
}
public void initialize(Bundle savedInstanceState) {
if (tConfig.isDismiss()) {
tCloseView.setVisibility(View.GONE);
tDismiss.setVisibility(View.VISIBLE);
} else {
tDismiss.setVisibility(View.GONE);
}
}
}
info_screen.xml :
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
tools:ignore="All"
android:id="#+id/root_layout"
android:background="#color/fd_theme"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="#+id/ImageView_CloseView"
style="#style/CancelButton"
android:layout_width="#di/target_size"
android:layout_marginTop="#di/p_6"
android:layout_height="#di/target_size"
android:layout_alignParentStart="true"
android:clickable="true"
android:contentDescription="#string/close_btn_txt"
android:importantForAccessibility="yes"
android:paddingStart="#di/p_14"
android:paddingEnd="#di/p_14"
android:background="?attr/bg_color"
app:srcCompat="#drawable/icn_close_white"/>
<LinearLayout
android:id="#+id/TextView_Layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:orientation="vertical">
<TextView
android:id="#+id/TextContent"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginBottom="#di/size_2x"
android:focusableInTouchMode="true"
android:gravity="center"
android:text="#string/text"
android:textColor="#color/white"
android:textSize="#di/rating"
android:textAlignment="center"/>
<com.package.button.star.views.widgets.StaView
android:id="#+id/StarView_AppRating"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_gravity="center">
</com.package.button.star.views.widgets.StarView>
<Button
android:id="#+id/Dismiss"
style="#style/buttonStyle"
android:layout_marginTop="#di/margin_top"
android:paddingLeft="#di/padding_50"
android:paddingTop="#di/padding_18"
android:paddingRight="#di/padding_50"
android:paddingBottom="#di/padding_18"
android:text="Dismiss"
android:onClick="onSkip"
android:textAlignment="center"
android:textAllCaps="false"
android:textSize="#di/dismiss_fontSize"
android:visibility="visible"
android:focusable="true"
tools:text="Dismiss" />
<ViewStub
android:id="#+id/actions_stub"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="#di/margin_center"
android:inflatedId="#+id/view_actions"
android:layout="#layout/view_actions" />
</LinearLayout>
</FrameLayout>

Try removing the onClick from xml.

Accessing element from same layout parent

i have a listview with different components (2 linear layouts and a button) , what i want to do is when i click on a button that's inside one of those linear layouts , i want to access a textview that's inside the other linearlayout , is it possible ?
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<ListView
android:id="#+id/listV2"
android:layout_width="match_parent"
android:layout_height="wrap_content">
</ListView>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<ImageView
android:id="#+id/icon"
android:layout_width="85dp"
android:layout_height="wrap_content" />
<LinearLayout
android:layout_width="150dp"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:id="#+id/nom"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textColor="#color/textCname"
android:textSize="21dp"
android:textStyle="bold" />
<TextView
android:id="#+id/numero"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="12dp"
android:textColor="#color/textCother"
android:textStyle="italic" />
<TextView
android:id="#+id/ville"
android:layout_width="match_parent"
android:textColor="#color/textCother"
android:layout_height="wrap_content"
android:textSize="12dp"
android:textStyle="italic" />
</LinearLayout>
<Button
android:layout_width="50dp"
android:layout_height="wrap_content"
android:visibility="invisible" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="end"
>
<ImageView
android:id="#+id/remove"
android:onClick="contactRemove"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<ImageView
android:id="#+id/edit"
android:onClick="contactEdit"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="22dp"/>
<ImageView
android:onClick="contactCall"
android:id="#+id/call"
android:layout_marginLeft="22dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
</LinearLayout>
</RelativeLayout>
what i want to do is access the value of android:id="#+id/numero"
when i click on one of the image views

You can set OnClickListener interface provided by View class. Something like this.
Implement listener on your activity class
public class SpinnerActivity extends AppCompatActivity implements
View.OnClickListener
Declare class level variables for your views
private TextView tvNumero;
private ImageView ivRemove, ivEdit, ivContactCall;
Find initialise value in onCreate() method
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_gildi_spinner);
tvNumero = (TextView) findViewById(R.id.numero)
ivRemove = (ImageView) findViewById(R.id.remove);
ivEdit = (ImageView) findViewById(R.id.edit);
ivContactCall = (ImageView) findViewById(R.id.contactCall);
ivRemove.setOnClickListener(this);
ivEdit.setOnClickListener(this);
ivContactCall.setOnClickListener(this);
}
Implemented class from Onclickistener, where you get on click event for your registered views
#Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.remove:
case R.id.edit:
case R.id.contactCall:
Toast.makeText(this, tvNumero.getText().toString(), Toast.LENGTH_SHORT).show();
break;
}
}
NOTE : tvNumero.getText().toString() gives you the value of your desired TextView.
UPDATE :
Firstly replace your ListView with RecyclerView
Refer RecyclerView Example tutorial.
Secondly to achieve onClick for your listed items
Refer recyclerview-onclick tutorial.

Pass context when you create your adapter, Use that context to get the inflated view.
Adapter adapter = new Adapter(this);
Then in Adpater Class constructor :
public Adapter(Context context){
context.findViewById(R.id.textview);//consider this as numero textview
}
Then access it as per your requirement. Hope it helps!

Android - HorizontalScrollView will not scroll all the way

This is bugging me for a while now, Im using HorizontalScrollView.fullScroll(HorizontalScrollView.FOCUS_RIGHT) which scrolls my ScrollView to the right, but not all the way, it's takes the scrollbar 99% percent to the right, I can manually scroll the rest of the way but for some reason it does not do it when i call the fullScroll() API.
Here's a sample code.... If you push the button a few times, the TextView will expand and you'll see the problem.
Activity:
package com.example.test;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.HorizontalScrollView;
import android.widget.TextView;
public class MainActivity extends Activity {
TextView tv;
HorizontalScrollView hsv;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tv = (TextView) findViewById(R.id.textView1);
hsv = (HorizontalScrollView)findViewById(R.id.horizontalScrollView1);
}
public void btnOnClick(View v) {
tv.append("a");
hsv.fullScroll(HorizontalScrollView.FOCUS_RIGHT);
}
}
Layout:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<HorizontalScrollView
android:id="#+id/horizontalScrollView1"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal" >
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="30sp"
android:text="push the button" />
</LinearLayout>
</HorizontalScrollView>
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:onClick="btnOnClick"
android:text="Button" />
</LinearLayout>

I updated your code. Replace your code with below one. Which perfectly moves HorizontalScrollView to right of the screen.
Replace Your MainActivity.java with below one:
public class AndroidHTMLActivity extends Activity{
TextView tv;
HorizontalScrollView hsv;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
tv = (TextView) findViewById(R.id.textView1);
}
public void btnOnClick(View v){
tv.append("a");
System.out.println("tv.getWidth()="+tv.getWidth());
hsv = (HorizontalScrollView)findViewById(R.id.horizontalScrollView1);
ViewTreeObserver vto = hsv.getViewTreeObserver();
vto.addOnGlobalLayoutListener(new OnGlobalLayoutListener(){
#Override
public void onGlobalLayout() {
hsv.getViewTreeObserver().removeGlobalOnLayoutListener(this);
hsv.scrollTo(tv.getWidth(), 0);
}
});
}
}
And replace youe Xml file with below one:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:id="#+id/ll_parent_layout">
<HorizontalScrollView
android:id="#+id/horizontalScrollView1"
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="30dp"
android:text="push the button" />
</LinearLayout>
</HorizontalScrollView>
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:onClick="btnOnClick"
android:text="Button" />
</LinearLayout>
This code fulfile your condition which you wants.

Android content of ViewGroup disappears when rotationY is animated

I created an animation that flips a "card" to its backside.
To achieve this, I used setRotationYBy() and setVisibility() on each, the front, and the back.
The animation itself works fine, but when the animation is running, the content of both cards disappears (and reappears when the animation is finished).
cardFront.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
final Runnable moveMapDown = new Runnable() {
public void run() {
map.animate().y(0);
}
};
final Runnable flipCard2 = new Runnable() {
public void run() {
cardBack.setVisibility(View.VISIBLE);
cardFront.setVisibility(View.INVISIBLE);
currentFront = false;
CardBack.animate().rotationYBy(90).setInterpolator
(new DecelerateInterpolator()).withEndAction(moveMapDown).setDuration(300);
cardFront.setRotationY(180);
}
};
Runnable flipCard = new Runnable() {
public void run() {
cardBack.setRotationY(-90);
cardFront.animate().rotationYBy(90).setInterpolator
(new AccelerateInterpolator()).withEndAction(flipCard2).setDuration(300);
}
};
map.animate().y(-200).withEndAction(flipCard);
}
});
XML-Layout of the backside (front almost the same).
<RelativeLayout
android:id="#+id/back"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#id/imageView1"
android:layout_centerHorizontal="true"
android:layout_centerInParent="true"
android:layout_centerVertical="true"
android:layout_marginTop="-18dp"
android:background="#drawable/bgpatch"
android:paddingBottom="16dp"
android:paddingLeft="8dp"
android:paddingRight="8dp"
android:paddingTop="6dp"
android:visibility="invisible" >
<RelativeLayout
android:layout_width="300dp"
android:layout_height="288dp"
android:background="#drawable/dayplan_element_bg" >
<RelativeLayout
android:id="#+id/background"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/dayplan_element_bg"
android:paddingBottom="2dp"
android:paddingLeft="8dp"
android:paddingRight="8dp"
android:paddingTop="2dp" >
<TextView
android:id="#+id/backTitle"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_centerHorizontal="true"
android:layout_centerInParent="true"
android:layout_centerVertical="true"
android:gravity="center"
android:text="zusätzliche Informationen"
android:textAppearance="?android:textAppearanceLarge"
android:textColor="#android:color/primary_text_dark"
android:textSize="30sp"
android:textStyle="italic" />
</RelativeLayout>
<View
android:id="#+id/view1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="-1dp"
android:background="#drawable/shadow" />
</RelativeLayout>
</RelativeLayout>

Found the solution:
I had hardware-acceleration set to false due to another part of the app that requires this.
Set it back to true and it works!