i need to declare my Chronometer on onCreate() of my fragment because if I declare on onCreateView(), every time the ChronometerFragment is called the Chronometer is reseted.
My actual code:
ChronometerFragment.class
public class CronometroFragment extends Fragment {
Button btStart, btPause, btReset;
boolean click;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_cronometro, container,
false);
final Cronometro cronometro = (Cronometro) v.findViewById(R.id.cronometro);
click = true;
btStart = (Button) v.findViewById(R.id.btStart);
btPause = (Button) v.findViewById(R.id.btPause);
btReset = (Button) v.findViewById(R.id.btReset);
btStart.setOnClickListener(new View.OnClickListener() {
public void onClick(View arg0) {
cronometro.start();
}
});
btPause.setOnClickListener(new View.OnClickListener() {
public void onClick(View arg0) {
cronometro.pause();
}
});
btReset.setOnClickListener(new View.OnClickListener() {
public void onClick(View arg0) {
cronometro.setBase(SystemClock.elapsedRealtime());
cronometro.stop();
}
});
return v;
}
fragment_cronometro.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#f0f0f0"
android:orientation="vertical" >
<LinearLayout
android:id="#+id/Title"
android:layout_width="match_parent"
android:layout_height="40sp"
android:gravity="center" >
<TextView
android:id="#+id/titleText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/title_cronometro"
android:textSize="35sp" />
</LinearLayout>
<LinearLayout
android:id="#+id/Timer"
android:layout_width="match_parent"
android:layout_height="70sp"
android:gravity="center"
android:orientation="horizontal" >
<com.hello.app.Cronometro
android:id="#+id/cronometro"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:textSize="45sp" />
</LinearLayout>
<LinearLayout
android:id="#+id/Start"
android:layout_width="match_parent"
android:layout_height="50sp"
android:gravity="center"
android:orientation="horizontal" >
<Button
android:id="#+id/btStart"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="#string/button_start" />
</LinearLayout>
<LinearLayout
android:id="#+id/PauseStop"
android:layout_width="match_parent"
android:layout_height="50sp"
android:gravity="center"
android:orientation="horizontal" >
<Button
android:id="#+id/btPause"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="#string/button_pause" />
<Button
android:id="#+id/btReset"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="#string/button_reset" />
</LinearLayout>
</LinearLayout>
My problem is that user cannot change fragment because this reset the Chronometer.
Please, can someone help me?
Thanks.
This question is badly formulated.. But in your onCreate, put setretaininstance(true). This should work. :-)
Related
In one of my fragment class, it has two buttons (A and B) on top, used to switch to another fragment when clicked using viewPager.
When buttonA is clicked, it should switch to page A and so on.
When I click button A, how can I make the text in A show below the two buttons?
fragment_menu.xml
<?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">
<Button
android:id="#+id/buttonA"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="15dp"
android:layout_marginTop="10dp"
android:padding="15dp"
android:text="ButtonA"
android:textSize="12sp" />
<Button
android:id="#+id/buttonB"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_marginLeft="15dp"
android:layout_marginTop="10dp"
android:layout_marginRight="15dp"
android:layout_toRightOf="#+id/buttonB"
android:backgroundTint="#color/materialGrey600"
android:padding="15dp"
android:text="ButtonB"
android:textSize="12sp" />
<androidx.viewpager.widget.ViewPager
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
MenuFragment
public class MenuFragment extends BaseFragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View v = inflater.inflate(R.layout.fragment_menu, container, false);
final ViewPager viewPager = (ViewPager) v.findViewById(R.id.pager);
viewPager.setAdapter(new ViewPagerAdapter(getActivity().getFragmentManager()));
Button btnA = (Button) v.findViewById(R.id.buttonA);
Button btnB = (Button) v.findViewById(R.id.buttonB);
btnA.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
viewPager.setCurrentItem(0, true);
}
});
btnB.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
viewPager.setCurrentItem(1, true);
}
});
return v;
}
}
ViewPagerAdapter
public class ViewPagerAdapter extends FragmentPagerAdapter {
public ViewPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int position) {
switch (position)
{
case 0:
return new A()
case 1:
return new B()
}
return null;
}
#Override
public int getCount() {
return 2;
}
}
Output
try with below code.hope it is helpful for you ;)
P.S. You just need to set button style as you want :)
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.viewpager.widget.ViewPager
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_above="#id/llButton"
android:layout_height="match_parent" />
<LinearLayout
android:id="#+id/llButton"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_alignParentBottom="true"
android:layout_marginBottom="10dp">
<Button
android:id="#+id/buttonA"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:padding="15dp"
android:text="ButtonA"
android:textSize="12sp" />
<Button
android:id="#+id/buttonB"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="15dp"
android:layout_marginTop="10dp"
android:layout_marginRight="15dp"
android:backgroundTint="#color/colorAccent"
android:padding="15dp"
android:text="ButtonB"
android:textSize="12sp" />
</LinearLayout>
</RelativeLayout>
Since you are using Relative Layout you can add layout_below
<androidx.viewpager.widget.ViewPager
android:layout_below="#id/buttonB"
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent" />
you are doing it wrong, You cannot align a button to itself. That's why your buttons are not working properly. In your button B do this:
android:layout_toRightOf="#+id/buttonA"
instead of this:
android:layout_toRightOf="#+id/buttonB"
And to your viewPager add "android:layout_below:"
<androidx.viewpager.widget.ViewPager
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="#+id/buttonA" />
You have to set your layout like this....
[I think you want something like this 2 button fisrt and then viewpager for change the content ][1]
[1]: https://i.stack.imgur.com/dluXA.png
**Code for main Page **
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:orientation="vertical"
android:padding="5dp"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:padding="10dp"
android:layout_marginTop="10dp"
android:layout_height="match_parent"
android:orientation="horizontal">
<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/frame_content">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_gravity="center_horizontal">
<Button
android:id="#+id/btn_donner"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="2"
android:background="#drawable/rect_outline"
android:text="Donor's"
android:textAlignment="center"
android:textColor="#color/white" />
<Button
android:id="#+id/btn_blood_bank"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Blood Bank"
android:background="#drawable/rect_outline"
android:layout_weight="2"
android:textAlignment="gravity"
android:textColor="#color/white" />
</LinearLayout>
</FrameLayout>
</LinearLayout>
</LinearLayout>
Code For Java File of two Buttons And ViewPager
//Click Event for donor's and blood bank .....
View.OnClickListener listener = new View.OnClickListener() {
#Override
public void onClick(View view) {
Fragment fragment = null;
if (view == view.findViewById(R.id.btn_donner))
{
fragment = new TabDonnerFragment();
}
else
{
fragment = new TabBloodBankFragment();
}
FragmentManager manager = getFragmentManager();
FragmentTransaction transaction = manager.beginTransaction();
transaction.replace(R.id.frame_content, fragment);
transaction.commit();
}
};
btn_donner.setOnClickListener(listener);
btn_blood_bank.setOnClickListener(listener);
return root;
}
#Override
public void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Fragment fragment = null;
fragment = new TabDonnerFragment();
FragmentManager manager = getFragmentManager();
FragmentTransaction transaction = manager.beginTransaction();
transaction.replace(R.id.frame_content, fragment);
transaction.commit();
}
}
I am trying to apply a setOnClickListener on an EditText View in a Fragment and for some reason, It is not working, the code in the listener doesn't execute when I click on the EditText.
The fragment xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="16dp"
tools:context=".add_payment">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal">
<TextView
android:id="#+id/testpay"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Time:"
android:textColor="#000000"
android:textSize="24sp" />
<EditText
android:id="#+id/add_pay_time"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:clickable="true"
android:ems="10"
android:inputType="time" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal">
<TextView
android:id="#+id/textView5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Date:"
android:textColor="#000000"
android:textSize="24sp" />
<EditText
android:id="#+id/add_pay_date"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="10"
android:inputType="date" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal">
<TextView
android:id="#+id/textView6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Name:"
android:textColor="#000000"
android:textSize="24sp" />
<EditText
android:id="#+id/add_pay_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="10"
android:inputType="textPersonName" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal">
<TextView
android:id="#+id/textView8"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Table:"
android:textColor="#000000"
android:textSize="24sp" />
<EditText
android:id="#+id/add_pay_table"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="10"
android:inputType="textPersonName" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal">
<TextView
android:id="#+id/textView7"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Amount:"
android:textColor="#000000"
android:textSize="24sp" />
<EditText
android:id="#+id/add_pay_amm"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="10"
android:inputType="numberDecimal" />
</LinearLayout>
</LinearLayout>
The fragment code:
#Override
public View onCreateView(#NonNull LayoutInflater inflater, #Nullable ViewGroup container,
#Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.add_payment_fragment, container, false);
view.findViewById(R.id.add_pay_time).setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Toast.makeText(getContext(), "aaaa", Toast.LENGTH_LONG).show();
}
});
return view;
}
Edit text needs focus to call onClick().
Solution 1
request focus when you set listener:
EditText editText = view.findViewById(R.id.add_pay_time);
editText.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Toast.makeText(getContext(), "aaaa", Toast.LENGTH_LONG).show();
}
});
editText.requestFocus(); //request focus
Solution 2
set on touch listener:
EditText editText = view.findViewById(R.id.add_pay_time);
editText.setOnTouchListener(new View.OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
if (MotionEvent.ACTION_DOWN == event.getAction())
Toast.makeText(getContext(), "aaaa", Toast.LENGTH_LONG).show();
return false;
}
});
Solution 3
you can use onClickListener and onFocusChangeListener together:
EditText editText = view.findViewById(R.id.add_pay_time);
editText.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
showToast();//call your method
}
});
editText.setOnFocusChangeListener(new View.OnFocusChangeListener() {
#Override
public void onFocusChange(View v, boolean hasFocus) {
if (hasFocus)
showToast();//call your method
}
});
EditText edText = view.findViewById(R.id.add_pay_time);
edText.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Toast.makeText(getActivity(), "aaaa", Toast.LENGTH_LONG).show();
}
});
Use getActivity().getApplicationContext() instead
I want the code in the Java file to set the background color of whatever button was clicked, and keep it, even after you let go of the button. Thanks in advance
I don't really get the formatting on here. I hope it's clear what belongs where.
Java:
package mika.actual;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class accordion extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.accordian);
Button btnProfile = (Button) findViewById(R.id.btnProfile);
Button btnSettings = (Button) findViewById(R.id.btnSettings);
Button btnPrivacy = (Button) findViewById(R.id.btnPrivacy);
View panelProfile = findViewById(R.id.panelProfile);
panelProfile.setVisibility(View.GONE);
View panelSettings = findViewById(R.id.panelSettings);
panelSettings.setVisibility(View.GONE);
View panelPrivacy = findViewById(R.id.panelPrivacy);
panelPrivacy.setVisibility(View.GONE);
btnProfile.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// DO STUFF
View panelProfile = findViewById(R.id.panelProfile);
panelProfile.setVisibility(View.VISIBLE);
View panelSettings = findViewById(R.id.panelSettings);
panelSettings.setVisibility(View.GONE);
View panelPrivacy = findViewById(R.id.panelPrivacy);
panelPrivacy.setVisibility(View.GONE);
}
});
btnSettings.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// DO STUFF
View panelProfile = findViewById(R.id.panelProfile);
panelProfile.setVisibility(View.GONE);
View panelSettings = findViewById(R.id.panelSettings);
panelSettings.setVisibility(View.VISIBLE);
View panelPrivacy = findViewById(R.id.panelPrivacy);
panelPrivacy.setVisibility(View.GONE);
}
});
btnPrivacy.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// DO STUFF
View panelProfile = findViewById(R.id.panelProfile);
panelProfile.setVisibility(View.GONE);
View panelSettings = findViewById(R.id.panelSettings);
panelSettings.setVisibility(View.GONE);
View panelPrivacy = findViewById(R.id.panelPrivacy);
panelPrivacy.setVisibility(View.VISIBLE);
}
});
}
}
XML:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/root_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#FFFFFFFF"
android:orientation="vertical">
<Button
android:id="#+id/btnProfile"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Profile"
android:textColor="#FFFFFFFF" />
<LinearLayout
android:id="#+id/panelProfile"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="#FFFFFFFF">
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#FFFFFFFF">
<LinearLayout
android:id="#+id/panelProfile1"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#FFFFFFFF">
<TextView
android:id="#+id/strName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Name" />
<EditText
android:id="#+id/txtName"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
<LinearLayout
android:id="#+id/panelProfile2"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#FFFFFFFF">
<TextView
android:id="#+id/strSurname"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Surname" />
<EditText
android:id="#+id/txtSurname"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
</LinearLayout>
</ScrollView>
</LinearLayout>
<Button
android:id="#+id/btnSettings"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Settings"
android:textColor="#FFFFFFFF" />
<LinearLayout
android:id="#+id/panelSettings"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="#FFFFFFFF">
<ScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<LinearLayout
android:id="#+id/panelSettings1"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#FFFFFFFF">
<TextView
android:id="#+id/strMail"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="e-mail" />
<EditText
android:id="#+id/txtMail"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
<LinearLayout
android:id="#+id/panelSettings2"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#FFFFFFFF">
<TextView
android:id="#+id/strPhone"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Phone" />
<EditText
android:id="#+id/txtPhone"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
</LinearLayout>
</ScrollView>
</LinearLayout>
<Button
android:id="#+id/btnPrivacy"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Privacy"
android:textColor="#FFFFFFFF" />
<ScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout
android:id="#+id/panelPrivacy"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="#FFFFFFFF">
<CheckBox
android:id="#+id/checkFacebook"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Facebook"
android:textColor="#ff355689">
</CheckBox>
<CheckBox
android:id="#+id/checkLinkedIn"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="LinkedIn"
android:textColor="#ff355689">
</CheckBox>
<CheckBox
android:id="#+id/checkTwitter"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Twitter"
android:textColor="#ff355689">
</CheckBox>
</LinearLayout>
</ScrollView>
</LinearLayout>
If I understood correctly, what you want to do is, when clicking a button and expanding its sub-menu, change the background of that button until it is clicked again. You can do this with a Tag on the Button:
btnSettings.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// DO STUFF
//if button is not selected, change background and tag the View as selected
if(v.getTag() == null || v.getTag().equals("not_selected")) {
v.setBackgroundColor(Color.RED);
v.setTag("selected");
//show sub-menu
}
//if button is already selected, reset background and tag the View as not selected
else{
v.setBackgroundResource(android.R.drawable.btn_default);
v.setTag("not_selected");
//hide sub menu
}
}
});
Notice that v.setBackgroundResource(android.R.drawable.btn_default); is resetting the Button background to an android drawable. You may want to change this to a custom drawable or color.
You could have used an ExpandableListView to implement this kind of menu.
button.setOnTouchListener(new View.OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
if (event.getAction() == MotionEvent.ACTION_DOWN) {
view.setBackgroundColor(ContextCompat.getColor(context, R.color.presed_color));
} else if (event.getAction() == MotionEvent.ACTION_UP) {
view.setBackgroundColor(ContextCompat.getColor(context, R.color.unpresed_color));
}
return false;
}
});
I'm trying to create an application with 5 buttons on the main page. For some reason the ListenerOnButton is not working and the app will close before showing xml buttons layout.
Here's my MainActivity:
public class MainListActivity extends Activity {
ImageButton news;
ImageButton weather;
ImageButton counter;
ImageButton fakoi;
ImageButton gyalia;
ImageButton uvindex;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main_layout);
addListenerOnButton();
}
public void addListenerOnButton() {
news = (ImageButton) findViewById(R.id.news);
weather = (ImageButton) findViewById(R.id.weather);
fakoi = (ImageButton) findViewById(R.id.fakoi);
gyalia = (ImageButton) findViewById(R.id.gyalia);
uvindex = (ImageButton) findViewById(R.id.uvindex);
news.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
Intent intent = new Intent
(getApplicationContext(), MyOrasisNews.class);
startActivity(intent);
}
});
weather.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
Intent intent = new Intent
(getApplicationContext(), MainActivity.class);
startActivity(intent);
}
});
gyalia.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
Intent intent = new Intent
(getApplicationContext(), GyaliaActivity.class);
startActivity(intent);
}
});
fakoi.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
Intent intent = new Intent
(getApplicationContext(), FakoiActivity.class);
startActivity(intent);
}
});
uvindex.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
Intent intent = new Intent
(getApplicationContext(), UvMainActivity.class);
startActivity(intent);
}
});
}
}
And this is the xml file
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/db1_root"
android:background="#drawable/bg"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TableLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<TableRow
android:layout_width="fill_parent"
android:layout_height="0dp"
android:weightSum="1"
android:layout_weight="0.5">
<RelativeLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="0.5">
<Button
android:id="#+id/news"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/homebg"
android:gravity="center|bottom"
android:paddingBottom="10dp"
android:singleLine="false"
android:text="News"
android:textSize="18sp" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/news"
android:layout_centerInParent="true"/>
</RelativeLayout>
<RelativeLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="0.5">
<Button
android:id="#+id/weather"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/homebg"
android:gravity="center|bottom"
android:paddingBottom="10dp"
android:singleLine="false"
android:text="Weather"
android:textSize="18sp" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/weather"
android:layout_centerInParent="true"/>
</RelativeLayout>
</TableRow>
<TableRow
android:layout_width="fill_parent"
android:layout_height="0dp"
android:weightSum="1"
android:layout_weight="0.5">
<RelativeLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="0.5">
<Button
android:id="#+id/uvindex"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/homebg"
android:gravity="center|bottom"
android:paddingBottom="10dp"
android:text="Uv Index"
android:textSize="18sp" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/uvindex"
android:layout_centerInParent="true"/>
</RelativeLayout>
<RelativeLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="0.5">
<Button
android:id="#+id/fakoi"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/homebg"
android:gravity="center|bottom"
android:paddingBottom="10dp"
android:text="S Fakwn"
android:textSize="18sp" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/sfakon"
android:layout_centerInParent="true"/>
</RelativeLayout>
</TableRow>
<TableRow
android:layout_width="fill_parent"
android:layout_height="0dp"
android:weightSum="1"
android:layout_weight="0.5">
<RelativeLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="0.5">
<Button
android:id="#+id/gyalia"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/homebg"
android:gravity="center|bottom"
android:paddingBottom="10dp"
android:text="S gyalion"
android:textSize="18sp" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/sgyalion"
android:layout_centerInParent="true"/>
</RelativeLayout>
</TableRow>
</TableLayout>
</LinearLayout>
Any help will be appreciated.
you defined Buttons in your xml but you are trying to cast them to ImageButton. change type of your ImageButtons to Button.
You try to cast Button to ImageButton.
In your XML file change the Button to ImageButton or in your activity change the ImageButton to Button.
In my app i have a list with custom row,in each row i have a button and i want to set all of the buttons to the same listener. when i define a listener to the button (btn in code) my app get crash
this is how i set the list:
private void updateResultsInUi() {
lv = getListView();
lv.setTextFilterEnabled(true);
lv.setItemsCanFocus(false);
lv.setCacheColorHint(0x00000000);
ItemsAdapter adapter = new ItemsAdapter(this,R.layout.item_row, Catalog.instance());
lv.setAdapter(adapter);
lv.setTextFilterEnabled(true);
lv.setClickable(true);
Button btn = (Button)this.findViewById(R.id.cellbtn);
btn.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
int l = 0;
l++;
}
});
}
this is my row xml :
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
android:layout_height="100dp"
android:orientation="horizontal"
android:layout_width="fill_parent">
<LinearLayout android:layout_height="wrap_content"
android:weightSum="1" android:layout_marginLeft="5dp"
android:layout_width="match_parent"
android:orientation="horizontal" android:layout_weight="1">
<LinearLayout android:orientation="vertical"
android:layout_height="100dp"
android:layout_width="wrap_content">
<Button android:id="#+id/cellbtn"
android:layout_width="76px"
android:layout_height="37px" android:background="#drawable/hazmanacell"
android:layout_marginTop="20dp"/>
</LinearLayout>
<LinearLayout android:layout_height="wrap_content"
android:orientation="vertical" android:layout_width="0dp"
android:layout_weight="1" android:layout_marginRight="10dp">
<TextView android:textSize="14dp" android:layout_weight="0.50"
android:textStyle="bold" android:layout_height="wrap_content"
android:id="#+id/toptext" android:text="stam1"
android:layout_width="fill_parent"
android:gravity="right" android:textColor="#color/black" />
<TextView android:textSize="12dp" android:layout_weight="0.50"
android:layout_height="wrap_content"
android:text="stam1" android:layout_width="fill_parent"
android:id="#+id/centertext" android:gravity="right"
android:textColor="#color/black" />
</LinearLayout>
</LinearLayout>
<ImageView android:id="#+id/imageViewTwitterPic"
android:src="#drawable/icon"
android:layout_height="wrap_content"
android:layout_width="wrap_content" android:gravity="center_vertical" />
Edit
In this line :
Button btn = (Button)this.findViewById(R.id.cellbtn);
btn is null,any idea why it's happen?
in each row i have a button....In your adapter(ItemsAdapter)
#Override
public View getView(final int position, View convertView, ViewGroup parent) {
Button btn = (Button)view.findViewById(R.id.cellbtn);
btn.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
Toast.makeText(context,"clicked",Toast.LENGTH_SHORT).show();
}
});
}
in Your row.xml
<Button
android:id="#+id/cellbtn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:focusable="false"
android:textColor="#FFFFFF" />
Why
Button btn = (Button)this.findViewById(R.id.cellbtn);
you must use Your_Item_Layout.findViewById(R.id.cellbtn);