Develop Reference

Scroll View not working in Alert Dialog

Somehow the scroll view is not working . The message alert dialog box is showing is really big and so I need to implement vertical scrollbar. I tried to get data from previous asked question but it isn't solving my issue please help.
I need to show the alert dialog on button click event.
benefits.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
AlertDialog ad = new AlertDialog.Builder(Panchgavya.this).create();
ad.setCancelable(false); // This blocks the 'BACK' button
ad.setMessage(getString(R.string.benefits));
ad.setTitle("Benefits");
ad.setButton("OK", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
ad.show();
TextView textView = (TextView) ad.findViewById(android.R.id.message);
textView.setScroller(new Scroller(Panchgavya.this));
textView.setVerticalScrollBarEnabled(true);
textView.setMovementMethod(new ScrollingMovementMethod());
}
});
My XML File Code:
<?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"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".Design.Panchgavya"
android:orientation="vertical">
<android.support.v7.widget.Toolbar
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:background="#color/Green"
android:minHeight="?attr/actionBarSize"
android:theme="#style/ThemeOverlay.AppCompat.ActionBar">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="Panchgavya"
android:textColor="#color/white"/>
</android.support.v7.widget.Toolbar>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="6"
android:orientation="vertical">
<TextView
android:layout_marginTop="10dp"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:ellipsize="end"
android:text="#string/panchgavya"/>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="3"
android:orientation="vertical">
<TextView
android:id="#+id/panchgavya_tv_cow_dung"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Cow Dung"
android:textAppearance="#style/Base.TextAppearance.AppCompat.Medium"
android:textStyle="bold"
android:textColor="#color/black"/>
<TextView
android:id="#+id/panchgavya_tv_cow_urine"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="5dp"
android:text="Cow Urine"
android:textStyle="bold"
android:textAppearance="#style/Base.TextAppearance.AppCompat.Medium"
android:textColor="#color/black"/>
<TextView
android:id="#+id/panchgavya_tv_cow_milk"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="5dp"
android:text="Cow Milk"
android:textStyle="bold"
android:textAppearance="#style/Base.TextAppearance.AppCompat.Medium"
android:textColor="#color/black"/>
<TextView
android:id="#+id/panchgavya_tv_ghee"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="5dp"
android:textAppearance="#style/Base.TextAppearance.AppCompat.Medium"
android:text="Ghee"
android:textStyle="bold"
android:textColor="#color/black"/>
<TextView
android:id="#+id/panchgavya_tv_dahi"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="5dp"
android:textAppearance="#style/Base.TextAppearance.AppCompat.Medium"
android:text="Dahi"
android:textStyle="bold"
android:textColor="#color/black"/>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:orientation="vertical"
android:scrollbars="vertical"
android:scrollbarAlwaysDrawVerticalTrack="true">
<Button
android:id="#+id/panchgavya_btn_benefits"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="Benefits"
android:background="#color/Green"
android:textColor="#color/white"
/>
</LinearLayout>
</LinearLayout>

You can create custom layout for your dialog and set any property easily.
For your requirement, Crate a layout for your required Dialog. Put android:scrollbars = "vertical" in your textView inside your layout. And textview.setMovementMethod(new ScrollingMovementMethod());.
You can set custom layout on your by following method.
public void showDialog(Activity activity, String msg){
final Dialog dialog = new Dialog(activity);
dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
dialog.setCancelable(false);
dialog.setContentView(R.layout.dialog);
TextView text = (TextView) dialog.findViewById(R.id.text_dialog);
text.setText(msg);
Button dialogButton = (Button) dialog.findViewById(R.id.btn_dialog);
dialogButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
dialog.dismiss();
}
});
dialog.show();
}

<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<Textview
android:id="#+id/txtDescription"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="#dimen/margin_16dp"
android:paddingRight="#dimen/margin_16dp"
android:paddingBottom="#dimen/margin_16dp"
android:paddingTop="#dimen/margin_10dp"
android:text="#string/dummy_text_"
android:textSize="#dimen/font_14dp"
android:textColor="#color/colorPrimary"
android:layout_below="#+id/imgClose"/>
<ImageView
android:id="#+id/imgClose"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/ic_close"
android:layout_alignParentRight="true"
android:layout_marginRight="#dimen/margin_10dp"
android:layout_marginTop="#dimen/margin_10dp" />
</RelativeLayout>
</ScrollView>
// in your java file put below code
private void showPopup() {
final AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this);
LayoutInflater inflater = this.getLayoutInflater();
final View dialogView = inflater.inflate(R.layout.dialog_terms_services,
null);
dialogBuilder.setView(dialogView);
TextView txtDescription = dialogView.findViewById(R.id.txtDescription);
ImageView imgClose = dialogView.findViewById(R.id.imgClose);
txtDescription.setText(message);
final AlertDialog b = dialogBuilder.create();
b.show();
imgClose.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
b.dismiss();
}
});
}
// after than call that showPopup() methos on button click.Hope it works for you

class extending DialogFragment can have UI elements as per your requirement.
public class OrderDetailFragment extends DialogFragment{
#Override
public void onStart() {
super.onStart();
Dialog d = getDialog();
if (d!=null){
int width = ViewGroup.LayoutParams.MATCH_PARENT;
int height = ViewGroup.LayoutParams.WRAP_CONTENT;
d.getWindow().setLayout(width, height);
}
}
public static OrderDetailFragment getInstance(GeneralListDataPojo dataList){
OrderDetailFragment orderDetailFragment=new OrderDetailFragment();
Bundle bundle = new Bundle();
bundle.putParcelable(DATA, dataList);
orderDetailFragment.setArguments(bundle);
return orderDetailFragment;
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View root_view = inflater.inflate(R.layout.fragment_order_detail, container, false);
GeneralListDataPojo mDataList = getArguments().getParcelable(DATA);//My class which holds data implemented Parcelable
//population of data from mDataList
return root_view;
}
void closeDialog(){
this.dismiss();
}
}
fragment_order_detail is having my requirement specific element's (ScrollView/LinearLayouts/Buttons etc)
GeneralListDataPojo is the class which holds data implements Parcelable for transferring data between components
Now you can invoke this DialogFragment from your Fragment like this. (Im invoking from a Fragment. Change the FragmentManager retrieval accordingly if you are using from Activity)
OrderDetailFragment orderDetailFragment=OrderDetailFragment.getInstance((GeneralListDataPojo) responseObj);
FragmentManager fragmentManager=getFragmentManager();
orderDetailFragment.show(fragmentManager,"OrderDetailFragment");

Create The Custom Dialog layout Using Scroll View in your own custom Layout
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
final Dialog dialog= new Dialog(getApplicationContext());
dialog.setContentView(R.layout.activity_dialog);
Button click= dialog.findViewById(R.id.click);
click.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
dialog.dismiss();
}
});
dialog.show();
}
});

OnClickListener on non-Mainactivity & change first activity

i've a problem. I want to make a app with a loggin activity and a main activity. (To the OnClickListiner later)
fist:
What ive done so far:
i've created a login. java and login.xml
login.java:
public class Login extends Activity implements OnClickListener {
Button btnStartAnotherActivity;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.login);
boolean hasLogedIn = true;
if (hasLogedIn) {
Intent i = new Intent(Login.this, MainActivity.class);
startActivity(i);
finish();
} else {
}
}
public void onClick(View view) {
//calling an activity using <intent-filter> action name
Intent inent = new Intent("android.name.MainActivity ");
startActivity(inent);
}
}
i've created a MainActivity.java and activity_main.xml
moreover i've some other java and xml files to make a materiel designed Tab view for my MainActivity.
i have 3 tabs thats how it looks so far
[![tab1 with buttons][1]][1]
-now i'be added to the first tab 3 buttons.
example of one button: (the others are the same just a other id )
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Kommt"
android:clickable="false"
android:textColor="#190707"
android:id="#+id/kommt"
android:layout_alignParentStart="true"
android:layout_below="#+id/space" />
-So the app is running now without problems. ( All Tabs and there content is showing like i want it )
when i build the project the mainactivity is open first( see that link of the picture )
HOW TO SET: the login interface to be started once, when starting the app for the first time. After login is succesfully, then the mainactivity will always open. Thats my first problem. What should i add to the Login.java ? and how to set that the login.xml starts before the mainactivity ?
Second:
As i told you ive added some buttons. To test the buttons i've tried to implement a code for toast notification when clicking on button. But every time i build the project with the toast notifitcation code, the app doenst start anymore. Here the code for the toast notification i'm using:
public class MainActivity extends ActionBarActivity implements OnClickListener {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main); // but my main_activity doesnt have buttons ... tab1.xml have b
Button kommtbutton;
kommtbutton= (Button) findViewById(R.id.kommt);
kommtbutton.setOnClickListener(this);}
#Override
public void onClick(View v) {
setContentView(R.layout.tab1); // not sure if this is right ive did it cause the buttons are in the tab1 layout and not main_activity
switch(v.getId())
{
case R.id.kommt:
{
Toast toast1 = Toast.makeText(getApplicationContext(),
"Eingestempelt",
Toast.LENGTH_SHORT);
toast1.show();
break;
} ....}
here i have implemented all 3 buttons in a switch case.
It looks right but the onclicklistinier seems to kill my application before it can start. Maybe someone can help me.
i have following files:
Login.java, MainActivity.java, Tab1.java,Tab2.java,Tab3.java, SlidingTabsLayout.java, SlidingTabStrip.java and ViewPagerAdaper.
and i have this layouts.
acitivy_main.xml, login.xml, tab1,tab2,tab3.xml, toolbar.xml.
I'm not allowed to send pictures cause i'm new here.
Where have i do implement the code for the toast notification ?
thats my activity_main:xml
<LinearLayout 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:orientation="vertical"
tools:context=".MainActivity">
<include
android:id="#+id/tool_bar"
layout="#layout/tool_bar"
android:layout_height="wrap_content"
android:layout_width="match_parent"
/>
<android_package.SlidingTabLayout
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:elevation="2dp"
android:background="#color/ColorPrimary"/>
<android.support.v4.view.ViewPager
android:id="#+id/pager"
android:layout_height="match_parent"
android:layout_width="match_parent"
android:layout_weight="1"/>
and this is my tab1.xml
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/Tabs"
android:background="#FDFDFE"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:id="#+id/buchungen"
android:textColor="#190707"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Geht"
android:clickable="false"
android:textColor="#190707"
android:id="#+id/geht"
android:layout_alignParentBottom="true"
android:layout_alignEnd="#+id/textClock"
android:layout_marginBottom="36dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Name:"
android:paddingBottom="7dp"
android:paddingTop="7dp"
android:textColor="#190707"
android:id="#+id/name"
android:layout_alignParentStart="true"
android:layout_below="#+id/buchungen" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#190707"
android:paddingBottom="7dp"
android:paddingTop="7dp"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Status:"
android:id="#+id/status"
android:layout_below="#+id/name"
android:layout_alignParentStart="true" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#190707"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Letzte Buchung:"
android:paddingBottom="4dp"
android:paddingTop="7dp"
android:id="#+id/letzteBuchung"
android:layout_below="#+id/status"
android:layout_alignParentStart="true" />
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_alignBottom="#+id/buchungen"
android:weightSum="1"
android:id="#+id/linearLayout">
<ImageView
android:layout_width="314dp"
android:layout_height="310dp"
android:id="#+id/profilbild"
android:layout_gravity="center_horizontal"
android:src="#drawable/time" />
</LinearLayout>
<Space
android:layout_width="20dp"
android:layout_height="20dp"
android:layout_above="#+id/geht"
android:id="#+id/space" />
<TextClock
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#190707"
android:id="#+id/textClock"
android:layout_alignTop="#+id/name"
android:layout_alignParentEnd="true" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Kommt"
android:clickable="false"
android:textColor="#190707"
android:id="#+id/kommt"
android:layout_alignParentStart="true"
android:layout_below="#+id/space" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:text="Pause An/Aus"
android:textColor="#190707"
android:id="#+id/textView"
android:layout_alignTop="#+id/textView3"
android:layout_alignStart="#+id/pause" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:text="Einstempeln"
android:textColor="#190707"
android:id="#+id/textView2"
android:layout_above="#+id/kommt"
android:layout_alignParentStart="true" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:text="Ausstempeln"
android:textColor="#190707"
android:id="#+id/textView3"
android:layout_alignBottom="#+id/geht"
android:layout_alignStart="#+id/geht"
android:layout_alignTop="#+id/textView2" />
<ToggleButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Pause"
android:textColor="#190707"
android:id="#+id/pause"
android:layout_alignBottom="#+id/kommt"
android:layout_centerHorizontal="true"
android:checked="false" />
</RelativeLayout>
The buttons are in the tab1.xml. Where have i to acces them to make a Interaction ( show toast when pressing the button ) ? in the MainActivity.java or the Tab1.java or somewhere else ?
When i try to add toast notification my app just kills itself ...

You have to put all the findViewById and setContentView in the onCreate method or they won't do the job.
First point :
public class MainActivity extends ActionBarActivity
{
// Layout elements
private Button kommtbutton = null;
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
// Attach layout
setContentView(R.layout.activity_main); // but my main_activity doesnt have buttons ... tab1.xml have b
// Retrieve layout elements
kommtbutton= (Button) findViewById(R.id.kommt);
// Attach listeners
kommtbutton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View view)
{
// Do not use getApplicationContext(), this is an activity
Toast.makeText(MainActivity.this, "Eingestempelt", Toast.LENGTH_SHORT).show();
}
});
}
[...]
}
Second point :
public class LoginActivity extends Activity
{
// Layout elements
private EditText edit_login = null;
private EditText edit_password = null;
private Button btn_login = null;
// Class variables
private SharedPreferences prefs = null;
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
// Check if the user is already logged in
prefs = getSharedPreferences(getPackageName(), MODE_PRIVATE);
if (prefs.getBoolean("isLoggedIn", false))
{
Intent intent = new Intent(LoginActivity.this, MainActivity.class);
startActivity(intent);
finish();
return;
}
// Attach layout
setContentView(R.layout.login);
// Retrieve layout elements
edit_login = (EditText) findViewById(R.id.edit_login);
edit_password = (EditText) findViewById(R.id.edit_password);
btn_login = (Button) findViewById(R.id.btn_login);
// Attach listeners
btn_login.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View view)
{
// Retrieve information
String login = edit_login.getText().toString();
String password = edit_password.getText().toString();
// Do job
boolean canConnect = true; // TODO
if (canConnect)
{
// Update prefs
prefs.edit().putBoolean("isLoggedIn", true).commit();
// Move to activity
Intent intent = new Intent(LoginActivity.this, MainActivity.class);
startActivity(intent);
finish();
}
else
{
// Update prefs
prefs.edit().putBoolean("isLoggedIn", false).commit();
// Display error message
Toast.makeText(LoginActivity.this, "Wrong crendentials", Toast.LENGTH_LONG).show();
}
}
});
}
}

Placing Two Image Buttons on Top of Each Other

I need to place two ImageButtons on top of each other something like the following image.
While placing them has been no issue, I am unable to click the blue button. The red button when clicked works perfectly well.
The XML layout code is as follows:
<FrameLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1" >
<ImageButton
android:id="#+id/bluebutton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#null"
android:onClick="onButtonClicked"
android:scaleType="fitCenter"
android:src="#drawable/bluebutton" />
<ImageButton
android:id="#+id/redbutton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#null"
android:onClick="onButtonClicked"
android:scaleType="fitCenter"
android:src="#drawable/redbutton" />
</FrameLayout>
How do i ensure that both buttons can be clicked ?

You can simply use a RelativeLayout to do that. See this I made just now:
public class MainActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ImageButton btn = (ImageButton)findViewById(R.id.bluebutton);
ImageButton btn2 = (ImageButton)findViewById(R.id.redbutton);
btn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
TextView t = (TextView)findViewById(R.id.txt);
t.setText("Hello!");
}
});
btn2.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
TextView t = (TextView)findViewById(R.id.txt);
t.setText("Hi, how are you?");
}
});
}
it's just an example
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center">
<ImageButton
android:background="#ff040ab2"
android:id="#+id/bluebutton"
android:layout_width="150dp"
android:layout_height="250dp"
android:onClick="onButtonClicked"
android:scaleType="fitCenter"/>
<ImageButton
android:rotation="90"
android:background="#be2222"
android:id="#+id/redbutton"
android:layout_width="150dp"
android:layout_height="250dp"
android:onClick="onButtonClicked"
android:scaleType="fitCenter"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/txt"
android:textColor="#ffffff"/>
</RelativeLayout>

Changed the code.
public class MainActivity extends Activity {
ImageButton red,blue;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
red = (ImageButton)findViewById(R.id.redbutton);
blue = (ImageButton)findViewById(R.id.bluebutton);
}
public void onRedButtonClicked(final View view) {
Toast.makeText(getApplicationContext(), "Button red is clicked!", Toast.LENGTH_SHORT).show();
}
public void onBlueButtonClicked(final View view) {
Toast.makeText(getApplicationContext(), "Button blue is clicked!", Toast.LENGTH_SHORT).show();
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
And the layout:
<FrameLayout 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=".MainActivity" >
<ImageButton
android:id="#+id/redbutton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#null"
android:onClick="onRedButtonClicked"
android:scaleType="fitCenter"
android:src="#drawable/redbutton"
android:visibility="visible"/>
<ImageButton
android:id="#+id/bluebutton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#null"
android:onClick="onBlueButtonClicked"
android:scaleType="fitCenter"
android:src="#drawable/bluebutton"
android:visibility="visible"/>
</FrameLayout>
Hope this helps..:)

Show/hide text with button

I am trying to show text with a button click.
Here is my onClick code:
public class Uteliv extends Activity {
public void onCrate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_uteliv);
TextView tidiTekst = (TextView) findViewById(R.id.tidiTekst);
tidiTekst.setVisibility(View.GONE);
Button tidiKnapp= (Button) findViewById(R.id.tidiKnapp);
tidiKnapp.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
tidiTekst.setVisibility(View.VISIBLE);
}
});
}
}
What is wrong? When I test it on my phone I only get a blank page.

Unless this was a typo in your post, your problem is you haven't declared the proper Activity method
public void onCrate(Bundle savedInstanceState) {
should be
public void onCreate(Bundle savedInstanceState) {
Also, you should probably make your Views member variables (declare them before onCreate() and initialize them inside of onCreate())
Edit
To show/hide your TextView you can use getVisibility to determine what to do. So it would be something like
public void onClick(View v) {
tidiTekst.setVisibility((tidiTekst.getVisibility() == View.Visible)
? View.GONE : View.VISIBLE);
}

activity_Main.xml
<LinearLayout
android:id="#+id/linearLayout1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:orientation="vertical"
android:padding="10dip" >
<Button
android:id="#+id/mybtn"
style="?buttonBarButtonStyle"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dip"
android:layout_weight="1"
android:background="#c4c5c7"
android:shadowColor="#959597"
android:shadowDx="0"
android:shadowDy="1"
android:shadowRadius="1"
android:text="Button"
android:textColor="#ffffff"
android:textSize="30sp"
android:textStyle="bold" />
<TextView
android:id="#+id/myTextView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="15dp"
android:text="hidden"
android:visibility="gone"/>
</LinearLayout>
code for MainActivity.java
private TextView mytxtvw;
private Button myButton;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mytxtvw=(TextView)findViewById(R.id.myTextView);
myButton=(Button)findViewById(R.id.mybtn);
onBtnClick();
}
public void onBtnClick()
{
myButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
mytxtvw.setVisibility((mytxtvw.getVisibility() == View.VISIBLE)
? View.GONE : View.VISIBLE);
}
});
}
}

Define your button and textView variables outside of the on-create method. Until you post the error you are getting, I'm going to assume that you are getting a null pointer because they are going out of scope once onCreate is finished.
TextView tidiTekst;
Button tidiKnapp;
public void onCrate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_uteliv);
tidiTekst = (TextView) findViewById(R.id.tidiTekst);
tidiTekst.setVisibility(View.GONE);
tidiKnapp= (Button) findViewById(R.id.tidiKnapp);
tidiKnapp.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
tidiTekst.setVisibility(View.VISIBLE);
}
});
}

Is it working if you decalre your textView as final ?
final TextView tidiTekst = (TextView) findViewById(R.id.tidiTekst);

Please check your R.layout.activity_uteliv in a WYSIWYG IDE such as Eclipse or IntelliJ IDEA, edit it in graphic mode, it must be something wrong with the layout(xml).

In xml :
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_gravity="center"
android:layout_marginTop="#dimen/_6sdp">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="MORE"
android:textStyle="bold"
android:textColor="#color/darkgray"
android:textSize="#dimen/_10sdp"
android:gravity="left"
android:id="#+id/moreone"/>
</LinearLayout>
<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="#color/darkgray"
android:layout_marginTop="#dimen/_6sdp"/>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_gravity="center"
android:layout_marginTop="#dimen/_9sdp">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="16) I will not indulge in any way in any act that is against the spirit of law and society. "
android:textStyle="bold"
android:textColor="#color/darkgray"
android:textSize="#dimen/_10sdp"
android:gravity="left"
android:id="#+id/tandcone"/>
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_gravity="center"
android:layout_marginTop="#dimen/_6sdp">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="17) I will treat all with dignity irrespective and provide them with high level of service and remedies for their dissatisfaction any time during the course of my business as an Independent Associate."
android:textStyle="bold"
android:textColor="#color/darkgray"
android:textSize="#dimen/_10sdp"
android:gravity="left"
android:id="#+id/tandctwo"/>
</LinearLayout>
In MainActivity :
moreone.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
tandcone.setVisibility((tandcone.getVisibility() == View.VISIBLE)
? View.GONE : View.VISIBLE);
tandctwo.setVisibility((tandctwo.getVisibility() == View.VISIBLE)
? View.GONE : View.VISIBLE);
}
});

How to setting listener for button inside the Crouton Toast and clear that Crouton Toast using that button?

I have an app, which shows toast below the actionbar. I'm using Crouton library for displaying toast. Here I'm placing custom layout for toast, that layout contains one textview and one button (for close option). So Toast appears with button. If I click that it should close the toast but nothing happens.. Below Code for this example. Any Help Appreciated
MainActivity.java
public class MainActivity extends SherlockActivity implements OnClickListener {
private View customToastView;
private TextView customToastMessageView;
private Button customToastCloseButton;
private Button doneButton;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
doneButton = (Button) findViewById(R.id.done_button);
customToastView = getLayoutInflater().inflate(R.layout.toast_custom_layout, null);
customToastMessageView = (TextView) customToastView.findViewById(R.id.messages);
customToastCloseButton = (Button) customToastView.findViewById(R.id.close_button);
customToastCloseButton.setOnClickListener(this);
doneButton.setOnClickListener(this);
}
#Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.done_button:
Crouton.cancelAllCroutons();
customToastMessageView.setText("Message");
Crouton.show(this, customToastView);
break;
case R.id.close_button:
Crouton.cancelAllCroutons();
break;
}
}
}
toast_custom_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" >
<TextView
android:id="#+id/messages"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginLeft="26dp"
android:text="Large Text"
android:textAppearance="?android:attr/textAppearanceLarge" />
<Button
android:id="#+id/close_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:layout_marginRight="23dp"
android:text="Button" />
</RelativeLayout>
activity_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<Button
android:id="#+id/done_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="146dp"
android:text="Button" />
</RelativeLayout>