I have an inflated Linear Layout that contains 2 TextViews inside it.
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:orientation="vertical" >
<TextView
android:id="#+id/tv_m"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#drawable/ll_borders"
android:tag="m"
android:text="m" />
<TextView
android:id="#+id/tv_q"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#drawable/ll_borders"
android:tag="q"
android:text="q" />
</LinearLayout>
All i want is that when this Linear Layout is inflated then i want to get the only TEXTVIEW on which i click. For example if i click on "tv_m" then it shall only return me the text of tv_m.
May b its simple but i am not getting a way to it. So i need help.
Thanks
After inflating the layout get the textview objects as below
LinearLayout layout = inflater.inflate(<your layout name>, null);
TextView textView1 = layout.findViewById(R.id.tv_m));
TextView textView2 = layout.findViewById(R.id.tv_q));
String selectedText;
textView1.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
selectedText = textView1.getText().toString();
}
});
Similarly you can put listener for textView2 also. The selectedText will be the final string which you want.
You need to set up on click listeners for the text views. Then when one is clicked, it will call a function in your code passing it the view that was touched. Then you can call getText on it.
here is the code just check this out :
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
LinearLayout lt = (LinearLayout) findViewById( R.id.linearLayout );
LayoutInflater inflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View view = inflater.inflate(your xml to be inflate, null, false);
lt.addView(view);
TextView tv_m = (TextView)view.findViewById( R.id.tv_m);
TextView tv_l = (TextView)view.findViewById( R.id.tv_l);
tv_m.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
tv_m.getText(); // to get the value written on text view
} });
}
Related
Please help. I have tried everything but failed every time. I am building an android app where I need to update text of a TextView in dialog box programmatically.
This dialog box is created using a custom layout. Posting code below, Please help in updating value of tv1 to "It's the new text". In XML layout file text was set to "old text".
After I run this program, the value of tv1 in 'dialogabt', is still seen as "old text".
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button b1 = (Button) findViewById(R.id.b1);
//generating first dialog box
b1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Dialog dialog1 = new Dialog(MainActivity.this);
dialog1.requestWindowFeature(Window.FEATURE_NO_TITLE);
dialog1.setContentView(R.layout.setings);
dialog1.show();
}
});
}
}
function to generate the second dialog box and update TextView's text in it
public void abtit(View view) {
Dialog dialogabt = new Dialog(this);
dialogabt.requestWindowFeature(Window.FEATURE_NO_TITLE);
LayoutInflater inflater = this.getLayoutInflater();
View dialogView = inflater.inflate(R.layout.custom2, null);
TextView tv1 = (TextView) dialogView.findViewById(R.id.firstapp);
System.out.println("Going to set new value");
tv1.setText("Its new text");
System.out.println("done setting new value");
dialogabt.setContentView(R.layout.custom2);
dialogabt.show();
}
settings.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="300dp"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:id="#+id/set3"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:onClick="abtit"
android:text="About app" />
</RelativeLayout>
custom2.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="315dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:background="#drawable/custom_alert2"
android:orientation="vertical">
<TextView
android:id="#+id/firstapp"
android:layout_width="wrap_content"
android:layout_height="100dp"
android:onClick="openapp2"
android:text="old text" />
</RelativeLayout>
Try this:
dialogabt.setContentView(R.layout.custom2);
TextView tv1 = (TextView) dialogabt.findViewById(R.id.firstapp);
System.out.println("Going to set new value");
tv1.setText("Its new text");
System.out.println("done setting new value");
dialogabt.show();
Check your abtit() method, you are setting value in one custom view and in alert dialog you are setting another view, so it will not affect the values which you have set for dialogView object.
So just change your below line,
dialogabt.setContentView(R.layout.custom2);
By
dialogabt.setView(dialogView);
It will work
Remove following line because you are seting contentView after setting text to textView
dialogabt.setContentView(R.layout.custom2);
and add this line to below
View dialogView = inflater.inflate(R.layout.custom2, null);
I have a layout where I want to imitate a listview by adding items programmatically one below the other. So I created an .xml for the layout of these items that are something like this:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/ll_lista"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="1dp"
android:layout_marginTop="5dp"
android:layout_toLeftOf="#+id/rellay_btn"
android:orientation="vertical" >
<TextView
android:id="#+id/tv_username"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="1dp"
android:text="Some name"
android:textColor="#3F3F3F"
android:textSize="17sp"
android:textStyle="bold" />
<TextView
android:id="#+id/tv_tip"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/iv_follow"
android:text="Some text"
android:textColor="#3F3F3F"
android:textSize="13sp" />
</LinearLayout>
In the activity I would like to generate n of this layout, fill the textviews with text and also I would like to set an onClickListener on them. n is the size of an array. Please help
Note: Once the activity loads, the number of layouts will not change, nor can a layout be removed.
This is what I have now but the layout is displayed on top of the activity instead of below a Textview:
LayoutInflater inflater = LayoutInflater.from(BucketProfileActivity.this);
for (int i = 0; i < 3; i++) {
View view = inflater.inflate(R.layout.bucketprofile_tips, null);
view.setId(i);
TextView tv_username = (TextView) view.findViewById(R.id.tv_username);
tv_username.setText(String.valueOf(i));
RelativeLayout.LayoutParams rl = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT,
RelativeLayout.LayoutParams.WRAP_CONTENT);
rl.addRule(RelativeLayout.BELOW, R.id.tv_nemkell);
addContentView(view, rl);
}
If your posted xml file is bucketprofile_tips.xml then you need to change here from
TextView tv_username = (TextView) view.findViewById(R.id.tv_title);
to
TextView tv_username = (TextView) view.findViewById(R.id.tv_username);
Because in bucketprofile_tips.xml tv_title id not found for your TextView. So you are getting Null Pointer Exception.
Not sure why you would want to do this but you can just use a LayoutInflater to inflate x of this view and add them to a designated ViewGroup. For example:
LayoutInflater inflater = LayoutInflater.from(context);
for (int i = 0; i < numberOfViews; i++) {
View v = inflater.inflate(R.layout.view_to_add, parentView, false);
setup(v);
parentView.addView(v);
}
Where setup() is a function you define that does the setup work such as setting the text of a TextView etc.
For instance, in your setup function might look something like this:
private void setup(View v) {
TextView tv = (TextView) v.findViewById(R.id.name);
// set the text of the text view
tv.setText("Hello!");
// set the click listener for the view...
v.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// do stuff here...
}
});
}
LinearLayout parentLayout=findViewById(R.id.parentLayout);
LayoutInflater inflater = LayoutInflater.from(BucketProfileActivity.this);
View view = inflater.inflate(R.layout.bucketprofile_tips, null);
parentLayout.addView(view);
LinearLayout textList=(LinearLayout) parentLayout.getChildAt(0);
for(int i=0; i<textList.getChildCount(); i++){
TextView tv_username=(TextView) textList.getChildAt(i);
textView.setOnClickListener(new View.OnClickListener(){
#Override
public void onClick(View view){
tv_username.setText(String.valueOf(i));
}
}
}
i have create a xml for a bottom bar.
Implements this bottom bar in other activity xml with this line of code:
<include layout="#layout/bottom_bar" />
where bottom_bar are the name of the file xml of the bottom bar.
I created a MainActivity and when i launch the app i see the MainActivity content with the bottom bar.
how to set an onclicklistener in one button of the bottom bar and make it work in every activity of my app?
this is the bottom_bar.xml
<?xml version="1.0" encoding="utf-8"?>
<HorizontalScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/footer"
android:layout_alignParentBottom="true"
android:layout_width="match_parent"
android:layout_height="80dip"
android:background="#ff44ff">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="1dip">
<ImageView
android:id="#+id/imageView1"
android:layout_marginLeft="1dip"
android:layout_marginRight="1dip"
android:layout_width="75dip"
android:layout_height="75dip"
android:background ="#drawable/icona" />
</LinearLayout>
</HorizontalScrollView>
this the MainActivity.java
public class MainActivity extends Activity {
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
LayoutInflater layoutInflator = (LayoutInflater) getApplicationContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
LinearLayout insertPoint = (LinearLayout) findViewById(R.id.ll_content);
List views = new ArrayList();
//create a dynamic view
Iterator<Notizia> it = (Dati.listaNotizie).iterator();
while (it.hasNext()){
final Notizia not = it.next();
View view = layoutInflator.inflate(R.layout.layout_notizie, null);
TextView textView = (TextView) view.findViewById(R.id.notizieTitolo);
int pixel = (int) (10 * getResources().getDisplayMetrics().density);
TextView textView1 = (TextView) view.findViewById(R.id.notizieSottoTitolo);
textView.setText(not.getTitolo());
textView1.setText(not.getSottoTitolo());
textView.setOnClickListener(new OnClickListener(){
public void onClick(View v){
Dati.setNewsListaAttuale("http://www.rhinos.it/rhinos-news/");
SingleNewsActivity.setNotizia(not);
Intent intent = new Intent(MainActivity.this, SingleNewsActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(intent);
}
});
view.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
views.add(view);
}
for(int i = 0; i<views.size(); i++)
insertPoint.addView((View) views.get(i));
}
}
I can create a java class or a function for the bottom bar and implement this class/function in the MainActivity.java ?
Set id
<include android:id="#+id/bottom_bar"
layout="#layout/bottom_bar" />
then
View bottom_bar_container = findViewById(R.id.bottom_bar);
bottom_bar_container.findViewById(R.id.<your id name which is use inside bottom bar>);
Set click listener
Set an id in the XML reference of the layout.
<include android:id="#+id/yourBottomBarId" layout="#layout/bottom_bar" />
Then get it in the activity class by Referencing it.
YourBottomBar bottomBar = (YourBottomBar) findViewById(R.id.yourBottomBarId);
Then get reference to the button contained in your bottomBar view.
// Unsure how you want to reference, this is one suggestion.
Button yourButton = bottomBar.getButton();
yourButton.setOnClickListener(new OnClickListener()
{
#Override
public void onClick(View v) {
// Your onClick implementation here.
}
});
What I'm trying to do is to have a listview item with a button in each list viewitem.
When the Buttton is being pressed I want a layout that is at gone state will be visible and expand with animation down, and if the layout is shown than when the same button is being preesed than the layout will slide up and be gone again.
In order to do so I've created the next layout for the listview item -
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/tilte_info">
<TextView
android:id="#+id/textView_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="20dp"
android:layout_marginTop="15dp"
android:text="TextView"
android:textSize="20sp" />
<Button
android:id="#+id/button_open"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginLeft="25dp"
android:text="Open" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#5C83AF"
android:visibility="gone"
android:id="#+id/extend_info">
<TextView
android:id="#+id/textView_more_info"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="20dp"
android:layout_marginTop="15dp"
android:text="TextView"
android:textSize="20sp" />
</LinearLayout>
</LinearLayout>
As you can see there are two layouts - one is tilte_info which is always shown and have the button in it, and the other one is extend_info which will be shown or hide by the button click.
Now I've used the next code in order to try and make it work -
public class MainActivity extends Activity {
ArrayList<Place> placesList = new ArrayList<Place>();
placeAdapter adapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Place place1 = new Place("Place num 1", "some info on place 1");
Place place2 = new Place("Place num 2", "some info on place 2");
Place place3 = new Place("Place num 3", "some info on place 3");
placesList.add(place1);
placesList.add(place2);
placesList.add(place3);
ListView lv = (ListView) findViewById(R.id.listview_1);
adapter = new placeAdapter(this);
lv.setAdapter(adapter);
}
class placeAdapter extends ArrayAdapter<Place> implements OnClickListener{
public placeAdapter(Context context) {
super(context, -1, placesList);
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
if (convertView==null){
// use the LayoutInflater to inflate an XML layout file:
convertView=getLayoutInflater().inflate(R.layout.list_item, parent,false);
}
TextView textTitle = (TextView) convertView.findViewById(R.id.textView_title);
TextView textInfo = (TextView) convertView.findViewById(R.id.textView_more_info);
Button open = (Button) convertView.findViewById(R.id.button_open);
infoLayout = (View) convertView.findViewById(R.id.extend_info);
infoLayout.setVisibility(View.GONE);
open.setOnClickListener(this);
Place place = placesList.get(position);
textTitle.setText(place.getTitle());
textInfo.setText(place.getInfo());
return convertView;
}
#Override
public void onClick(View v) {
if(infoLayout.isShown()){
slide_up(MainActivity.this, infoLayout);
infoLayout.setVisibility(View.GONE);
}else{
infoLayout.setVisibility(View.VISIBLE);
slide_down(MainActivity.this, infoLayout);
}
}
}
public static void slide_down(Context ctx, View v){
Animation a = AnimationUtils.loadAnimation(ctx, R.anim.slide_down);
if(a != null){
a.reset();
if(v != null){
v.clearAnimation();
v.startAnimation(a);
}
}
}
public static void slide_up(Context ctx, View v){
Animation a = AnimationUtils.loadAnimation(ctx, R.anim.slide_up);
if(a != null){
a.reset();
if(v != null){
v.clearAnimation();
v.startAnimation(a);
}
}
}
}
The thing is that I tried to debug the code and it getting into the onclick function but nothing is happening - the layout that is gone not been shown.
I've chacked the animation code with simple textview outside the listview and it worked, but when im trying to use it in the listview item, it doesn't work.
Any ideas why?
Thanks for any kind of help
Use ExpandableListView. You have to extend the BaseExpandableListAdapter to your adapter and override methods. In this methods, override getGroupView to display the name of expandablegroup and override getChildView method to inflate the child view for list. After inflating the layout for child, set whatever animation you want on that view.
you shoud use expandableview for it...
basic example fot that is here... expandavlelistview example
Does anyone know how I could create a for loop(?) for my imageView and textView without adding them in my XML file? I'm not sure if it is possible too..so I would appreciate if someone could help me in this.
For your info, I would like to grab data from another activity. eg. If the user click the add to Favourite button, I would display another imageView & textView in this activity of the clothes image and name. The activity will also display the previous items that is added to the page.
XML file:
<ImageView
android:id="#+id/image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/ic_launcher" />
<TextView
android:id="#+id/name"
android:layout_marginLeft="10dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:text="a" />
</LinearLayout>
Inside my onCreate method:
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.my_favourite);
editButton = (Button)findViewById(R.id.edit);
image = (ImageView)findViewById(R.id.image);
name = (TextView)findViewById(R.id.name);
}
Thank you.
I think what you are going to want to do is in your layout have a ListView, and then you create something that implements ListAdapter (ArrayAdapter is a good choice). In your adapter you can reuse one xml file that would contain your ImageView and TextView.
There are a lot of good tutorials out there on it, Googling "ListView Adapter" will get you pretty far. Here's a good one: http://www.vogella.com/articles/AndroidListView/article.html
Yours is a pretty simple case, so you can use an ArrayAdapter like this:
Activity:
public class MainActivity extends Activity {
private ArrayAdapter<String> listAdapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
listAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, new ArrayList<String>()) {
#Override
public View getView(int position, View convertView, ViewGroup parent) {
View v = convertView;
if (convertView == null)
{
v = super.getView(position, convertView, parent);
}
String text = getItem(position);
TextView textview = ((TextView) v.findViewById(android.R.id.text1));
textview.setText(text);
// Now you can set an image by calling
// textview.setCompoundDrawablesWithIntrinsicBounds(...);
return v;
}
};
((ListView) findViewById(R.id.listView)).setAdapter(listAdapter);
findViewById(R.id.button).setOnClickListener(new View.OnClickListener() {
private int i = 0;
#Override
public void onClick(View view) {
listAdapter.add("item number: " + (++i));
listAdapter.notifyDataSetChanged();
}
});
}
}
Layout activity_main:
<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:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:paddingBottom="#dimen/activity_vertical_margin"
tools:context=".MainActivity">
<ListView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/listView"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
tools:listitem="#layout/listview_row"
android:layout_above="#+id/button"/>
<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>
Alternative:
If you are bent on not using a ListView or for whatever reason you can't use a list view, you can always inflate a layout and add it to another layout in your app. The code below would then replace the code above in the button's on click:
View row = getLayoutInflater().inflate(android.R.layout.simple_list_item_1, null); /* null here means it's not attaching/populating a view you already have */
((TextView) row.findViewById(android.R.id.text1)).setText("item number: " + (++i));
((ViewGroup) findViewById(R.id.linearlayout)).addView(row);
findViewById(R.id.linearlayout).invalidate();
Using a ListView here is the right way to go, so this is kind of a last resort.
I'm not sure of what you want, maybe this?
for (int i = 1; i <= 20; i++) {
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
Button btn = new Button(this);
btn.setId(i);
final int id_ = btn.getId();
btn.setText("button " + id_);
btn.setBackgroundColor(Color.rgb(70, 80, 90));
linear.addView(btn, params);
btn1 = ((Button) findViewById(id_));
btn1.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
Toast.makeText(view.getContext(),
"Button clicked index = " + id_, Toast.LENGTH_SHORT)
.show();
}
});
}