I'm relatively new to android development and I'm trying to find a way to inflate a view repeatedly each time when a button is pressed, in a different location, so every inflated view has its own position:
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.RelativeLayout;
import android.widget.TextView;
public class teamCreateScreen extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.team_locate_layout);
}
public void createTeam(View view) {
final RelativeLayout rlTeam = (RelativeLayout) findViewById(R.id.rlTeam);
View teamBox = View.inflate(this, R.layout.team_box, rlTeam);
final TextView teamBoxView = (TextView) findViewById(R.id.team_task_box);
teamBoxView.setX(0);
teamBoxView.setY(230);
}
}
The XML code of the layout:
<?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:id="#+id/rlTeam">
<Button
android:layout_width="60dp"
android:layout_height="60dp"
android:id="#+id/teamAddBtn"
android:text="+"
android:textSize="30sp"
android:onClick="createTeam"/>
</RelativeLayout>
XML code of the view that's being inflated:
<?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">
<TextView
android:layout_width="192dp"
android:layout_height="120dp"
android:id="#+id/team_task_box"
android:text="New Team" />
</RelativeLayout>
I want to use the same view to inflate multiple boxes with different coordinates in the layout. Every time I press the button to inflate the view again it inflates the box in the same coordinates so they overlap. I need to make the second box to appear to the first one's right, the third below 1st and so on, much like a grid of boxes.
Try this code and tell me whether it works. Remove the inflating of layout
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.RelativeLayout;
import android.widget.TextView;
public class teamCreateScreen extends Activity {
int i=0;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.team_locate_layout);
}
public void createTeam(View view) {
final RelativeLayout rlTeam = (RelativeLayout) findViewById(R.id.rlTeam);
RelativeLayout.LayoutParams relativeParams = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
TextView tv=new TextView(getApplicationContext());
if(tv.getId()>0) {
relativeParams.addRule(RelativeLayout.BELOW, tv.getId());
}
tv.setId(i);
r1Team.addView(tv, relativeParams);
i++;
}
}
Declare int i=0; as a global variable and increment it in the createTeam() method.
Related
I am new to Android Studio/Development, but not programming itself. I am struggling with the syntax (as I do think it is my problem) yet I cannot find a solution anywhere on here or on Google. I have this 2nd activity named FilterActivity. FilterActivity currently has 2 TextViews. Both create dynamic CheckBoxes. Right now, I only have one doing this so I can get one right before I go onto another. Here's the issue, I click on the TextView to get the dynamically created CheckBox and it shows perfectly fine. However, clicking on it again just adds the same values until it appears to completely fill the parent via xml.
No matter what I search, what I do, it all does the same exact thing. I know, I have nothing for onCheckedChanged, but I have previously before and it did not work either. So question(s), should I not be using LinearLayout and do like a container of sorts? There will be a decently big database for the checkboxes (500+) so I was thinking I would have to implement ScrollView at some point. Also, if LinearLayout is the correct way to go, what am I doing wrong? I am just completely spinning and I know it should not be this hard.
Thank you to anyone that gives feedback!
Here's XML:
<?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:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:context="xxx.AppEx.FilterActivity"
tools:layout_editor_absoluteY="81dp"
tools:showIn="#layout/activity_filter">
<View
android:id="#+id/firstView"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_centerHorizontal="true" />
<View
android:id="#+id/secondView"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_centerVertical="true"/>
<TextView
android:id="#+id/AllTextView"
android:clickable="true"
android:text="All"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:height="50dp"
android:layout_toLeftOf="#id/firstView"
android:layout_alignParentTop="true"
android:gravity="center"
android:textStyle="bold"
android:textAllCaps="true"/>
<TextView
android:id="#+id/DisTextView"
android:clickable="true"
android:text="Dis"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:height="50dp"
android:layout_toRightOf="#+id/firstView"
android:layout_alignParentTop="true"
android:gravity="center"
android:textStyle="bold"
android:textAllCaps="true"/>
<LinearLayout
android:id="#+id/CheckBoxLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_below="#id/secondView">
</LinearLayout>
</RelativeLayout>
Here's the main code:
import android.graphics.Color;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.content.Intent;
public class FilterActivity extends AppCompatActivity implements
CompoundButton.OnCheckedChangeListener {
LinearLayout CheckBoxLayout;
CheckBox checkBox;
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_filter);
CheckBoxLayout = (LinearLayout) findViewById(R.id.CheckBoxLayout);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
final TextView AllTextView = (TextView) findViewById(R.id.AllTextView);
AllTextView.setOnClickListener(new View.OnClickListener()
{
#Override
public void onClick(View v)
{
AllTextView.setBackgroundColor(Color.BLUE);
onAllClick();
}
});
TextView DisTextView = (TextView) findViewById(R.id.DisTextView);
DisTextView.setOnClickListener(new View.OnClickListener()
{
#Override
public void onClick(View v)
{
//onAllClick();
}
});
}
public void onAllClick()
{
Intent intent = getIntent();
dummy();
}
public void dummy()
{
String[] array = new String[]
{
"Rice", "Beans"
};
LinearLayout CheckBoxLayout = (LinearLayout)findViewById(R.id.CheckBoxLayout);
for (int i = 0; i < array.length; i++)
{
CheckBox checkBox = new CheckBox(this);
checkBox.setText(array[i]);
CheckBoxLayout.addView(checkBox);
}
}
#Override
public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
}
}
i'm trying to create a widget called DecoView dynamicaly every time i press a button.
if i just put two deco views in the XML i can see them both and they both look fine on ontop of the other.
but when i try to add it dynamicly in the code, i only create the first one,
and all the rest just aren't get created
what am i missing here ?
can someone help me with this ?
my mainActivity.java
package com.example.shay_v.dynamicdecoviewexample;
import android.graphics.Color;
import android.graphics.PointF;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import android.widget.Toast;
import com.hookedonplay.decoviewlib.DecoView;
import com.hookedonplay.decoviewlib.charts.SeriesItem;
import com.hookedonplay.decoviewlib.events.DecoEvent;
public class MainActivity extends AppCompatActivity implements View.OnClickListener {
Button mainMenuButton;
int widgetInteger = 1;
LinearLayout ll;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//pointing to display
mainMenuButton = (Button) findViewById(R.id.button);
mainMenuButton.setOnClickListener(this);
//points to the linear layout in the xml
ll = (LinearLayout)findViewById(R.id.mainMenu_mainLayout);
}
private void createDecoViewWidget (int i) {
//adds params to the linear layout
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
//deco view widget
DecoView decoViewWidget = new DecoView(this);
//adding to view
decoViewWidget.setId(i);
ll.addView(decoViewWidget, params);
//decoViewWidget.configureAngles((int) (Math.random() * 360) + 1, (int) (Math.random() * 100));
//Create data series track
SeriesItem seriesItem = new SeriesItem.Builder(Color.argb(255, (int) (Math.random()*255), (int) (Math.random()*255), (int) (Math.random()*255)))
//third controller is end point
.setRange(0, 100, 0)
.setLineWidth(60f)
.setInset(new PointF(120f, 120f))
.build();
int series1Index = decoViewWidget.addSeries(seriesItem);
decoViewWidget.addEvent(new DecoEvent.Builder((float) (Math.random() * 100)).setIndex(series1Index).setDelay(1000).build());
}
//button listener
#Override
public void onClick(View v) {
createDecoViewWidget (widgetInteger);
widgetInteger++;
}
}
my activity_main.xml >
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context="com.example.shay_v.dynamicdecoviewexample.MainActivity">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World!" />
<LinearLayout
android:orientation="vertical"
android:layout_width="350dp"
android:layout_height="350dp"
android:layout_centerVertical="true"
android:id="#+id/mainMenu_mainLayout"
android:layout_centerHorizontal="true"></LinearLayout>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New Button"
android:id="#+id/button"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true" />
</RelativeLayout>
anyone ?
When you are creating the Views they are being added into a LinearLayout. This type of layout will position the views one after the other, so the second view is being drawn off the visible area of the screen.
As you want all views to be drawn on top of each other you should use a RelativeLayout.
I have to create a edit text one by one below inside custom dialog while clicking the button.
So far I have tried and created one edit text on clicking the button in custom dialog.
MainActivity.java:
Below I am shown the code what I had tried so far:
Edited:
import android.support.v7.app.ActionBarActivity;
import android.app.Dialog;
import android.os.Bundle;
import android.view.Gravity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.widget.Button;
import android.widget.EditText;
import android.widget.FrameLayout;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
public class MainActivity extends ActionBarActivity {
private Button button;
private LinearLayout ll;
EditText et;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button = (Button) findViewById(R.id.addBtn);
button.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
final Dialog dialog = new Dialog(MainActivity.this);
//setting custom layout to dialog
dialog.setContentView(R.layout.custom_dialog_layout);
dialog.setTitle("Add List");
//adding button click event
Button createEditText = (Button) dialog.findViewById(R.id.button);
createEditText.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// dialog.dismiss();
et= new EditText(MainActivity.this);
FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
params.gravity = Gravity.CENTER;
dialog.addContentView(et,params);
((LinearLayout) dialog.findViewById(R.id.container)).addView(et);
}
});
dialog.show();
}
});
}
}
custom_dialog_layout.xml:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<LinearLayout
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
>
<Button
android:id="#+id/button"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:layout_below="#+id/image"
android:layout_centerHorizontal="true"
android:layout_marginTop="100dp"
android:text="Next" />
</LinearLayout>
</RelativeLayout>
I don't know how to create infinite number of edittext one by one below.Anyone can help me with this.Thank you.
The way I've done it before is to have some containing layout (linearlayout, usually) and add my views to that container. Rough code:
LinearLayout container = (LinearLayout) findViewById(R.id.container);
and in your onclick listener
EditText edit = new EditText(MainActivity.this);
container.addView(edit);
Edit
Okay, after managing to absolutely miss the point of your question in my initial post, I went and checked out what was going on. What's happening (I think) is that it IS actually adding more edittexts, but they're all on top of each other so it looks like that it's not. So here's what you have to do, which plays into what I wrote above:
In your custom dialog view, add a linearlayout container
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/container"></LinearLayout>
and in your onclick, you add your edit texts to the linearlayout, NOT the dialog view
et= new EditText(TestActivity.this);
FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.WRAP_CONTENT, FrameLayout.LayoutParams.WRAP_CONTENT);
params.gravity = Gravity.CENTER;
((LinearLayout) dialog.findViewById(R.id.container)).addView(et);
and that should work.
I'm trying to create dynamically generated EditText views like the Google Keep app so when the user starts to enter text in one edit text view, a new blank one is generated below it.
I have a RecyclerView set up with an adapter that will contain the edit text views.
What's the best way to approach this?
The best way to do this is to have a TextView and below the textView have a list view.
Everytime the user enters something on the TextView and presses save, add the new entry to the arrayList which you are using to populate the ListView. Then refresh the ListView. That should do the trick.
In your MainActivity.java:
package com.junglesofts.strsend;
import android.support.v7.app.ActionBarActivity;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.EditText;
import android.widget.TableLayout;
import android.widget.TableRow;
import android.os.Bundle;
public class MainActivity extends ActionBarActivity {
public int i = 1;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
TableLayout ll = (TableLayout) findViewById(R.id.tblMain);
View mTableRow = null;
mTableRow = (TableRow) View.inflate(getApplicationContext(), R.layout.mrowrayout, null);
EditText txtNew = (EditText)mTableRow.findViewById(R.id.txtNew);
txtNew.setId(i);
txtNew.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
++i;
TableLayout ll = (TableLayout) findViewById(R.id.tblMain);
View mTableRow = null;
mTableRow = (TableRow) View.inflate(getApplicationContext(), R.layout.mrowrayout, null);
EditText txtNew = (EditText)mTableRow.findViewById(R.id.txtNew);
txtNew.setId(i);
txtNew.setOnClickListener(this);
mTableRow.setTag(i);
ll.addView(mTableRow);
}
});
mTableRow.setTag(i);
ll.addView(mTableRow);
}
}
In your activity_main.xml:
<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/tblMain"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.junglesofts.strsend.MainActivity">
</TableLayout>
And in layout folder, create a new layout and rename it to mrowrayout.xml and in it:
<TableRow xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/LinearLayoutRow"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<EditText android:id="#+id/txtNew"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Enter your text!"/>
</TableRow>
I tested it and it works for me.
I've created a custom ViewGroup based on a LinearLayout.
ClearableEditText.java
package test.todolist;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
public class ClearableEditText extends LinearLayout{
private EditText editText;
private Button button;
public ClearableEditText (Context context){
super (context);
String service = Context.LAYOUT_INFLATER_SERVICE;
LayoutInflater li = (LayoutInflater)getContext ().getSystemService (service);
li.inflate (R.layout.clearable_edit_text, this, true);
editText = (EditText)findViewById (R.id.clearEditText);
button = (Button)findViewById (R.id.clearButton);
configButton ();
}
private void configButton (){
button.setOnClickListener (new Button.OnClickListener (){
public void onClick (View v){
editText.setText ("");
}
});
}
}
clearable_edit_text.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<EditText
android:id="#+id/clearEditText"
android:layout_width="match_parent"
android:layout_height="wrap_content"
/>
<Button
android:id="#+id/clearButton"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="#string/clear"
/>
</LinearLayout>
How can I use ClearableEditText now?
I've tried to put a node inside a layout (main.xml) in 2 ways:
<test.todolist.ClearableEditText/>
and
<test.todolist.clearable_edit_text/>
but none of them have worked.
My main.xml:
<?xml version="1.0" encoding="utf-8"?>
<test.todolist.ClearableEditText/>
My ToDoList.java (main activity):
package test.todolist;
import android.app.Activity;
import android.os.Bundle;
public class ToDoList extends Activity{
#Override
public void onCreate (Bundle savedInstanceState){
super.onCreate (savedInstanceState);
setContentView (R.layout.main);
}
}
Thanks.
Solved. The main.xml should be like:
<?xml version="1.0" encoding="utf-8"?>
<merge xmlns:android="http://schemas.android.com/apk/res/android">
<test.todolist.ClearableEditText
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</merge>
First, merge tag because it is needed when using custom views. My custom view have a LinearLayout root, so it's inefficient if I set another LinearLayout or FrameLayout root in main.xml to use my custom view. merge solves that.
And second, all views must have the layout_width and layout_height attributes.