I am using com.andexert.library.RippleViewlibrary from Here's a link
Its working but not as expected . The ripple effect appears late i.e; when I click on TextView the Activity gets launched , then the ripple effect appears on the TextView of previous activity.
Also it shows error " cannot resolve method setOnRippleCompleteListener() "
xml file
<com.andexert.library.RippleView
android:id="#+id/ripple_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
rv_centered="true"
android:padding="0dp"
android:layout_alignParentBottom="true">
<com.techmorphosis.Utils.TextViewCustomFont
android:id="#+id/txt_lets_go"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textColor="#color/white_text"
android:background="#drawable/purple_button_bg"
android:gravity="center"
android:padding="10dp"
android:text="#string/lets_go"
android:textSize="#dimen/textsize_medium" />
</com.andexert.library.RippleView>
java file
rippleView.setOnRippleCompleteListener(new RippleView.OnRippleCompleteListener() {
// #Override
public void onComplete(RippleView rippleView) {
Log.d("Sample", "Ripple completed");
}
});
I solved this by placing the view id's click event inside rippleView.setOnRippleCompleteListener
Eg :
rippleviewNavigation.setOnRippleCompleteListener(new RippleView.OnRippleCompleteListener() {
#Override
public void onComplete(RippleView rippleView) {
if(id==R.id.txt_open){
// do stuffs here
}
}
Related
I have a list of buttons in my activity_main, Once i clicked on Button_A it is taking me to the next list of buttons layout for eg. Button_A1.
And once i clicked Button_A1 it should show me the text which i have written in text_view. But here its getting failed. Once i Clicked in Button_A1, it showing like "your app is stopped". Can you guys help me on this, as i am new on this platform.
**Button_A1.xml:**
<?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">
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:textAppearance="?android:attr/textAppearanceSmall"
android:text="Small Text"
android:id="#+id/textView2"
android:layout_gravity="center_vertical"
android:onClick="Button_A1" />
</LinearLayout>
**button_A1.java:**
public class Ov1 extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.ov1);
}
}
Do i have to give activity entry in manifest.xml. Please help me on this..
Button_A ----> Button_A1 ----> Textview
Clicked in Button_A1, it showing like "your app is stopped"
Because Button_A1 method is not available in Ov1 class. add method as:
public void Button_A1(View view) {
////
}
NOTE: To make TextView click-able need to add android:clickable="true" attribute in TextView xml
I allow the App's User to change the ImageButton's pictures from the drawable folders?
It's possible?
I want associate this action after onLongClickListener,
I put in the Drawable folder about 3 or 4 pictures(png) and the User can choose one for its ImageButton.
Yes, you can. On onLongClickListener click, you can pop up the option and then put a switch statement and put the following for each of the cases:
aButton.setImageResource(R.drawable.image2);
Here is the more detailed answer:
Put the following at the bottom of the layout (just before the last closing layout tag)
<FrameLayout
android:id="#+id/imagebuttonselectorlayout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:visibility="gone"
android:background="#android:color/black" >
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical" >
<ImageButton
android:id="#+id/imgButton1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/image1" />
<ImageButton
android:id="#+id/imgButton2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/image2" />
</LinearLayout>
</FrameLayout>
Then, in the java class file, add the following lines:
FrameLayout mFrameLayout;
ImageButton mImageButton1;
ImageButton mImageButton2;
mFrameLayout = (FrameLayout)findViewById(R.id.imagebuttonselectorlayout);
mImageButton1 = (ImageButton)findViewById(R.id.imgButton1);
mImageButton2 = (ImageButton)findViewById(R.id.imgButton2);
For the onLongClick of the main image button
mImageButton1.setOnLongClickListener(new OnLongClickListener() {
#Override
public boolean onLongClick(View v) {
mFrameLayout.setVisibility(View.VISIBLE);
return true;
}
});
Add the following lines in the same file to complete the functionality:
mImageButton1.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
mainImageButton.setImageResource(R.drawable.image1);
mFrameLayout.setVisibility(View.GONE);
}
});
mImageButton2.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
mainImageButton.setImageResource(R.drawable.image2);
mFrameLayout.setVisibility(View.GONE);
}
});
How does one create an ImageButton with transparent background that still clickable (still acts like a Button)?
This is the xml snippet:
<ImageButton
android:paddingRight="10dp"
android:paddingLeft="10dp"
android:paddingTop="7dp"
android:paddingBottom="7dp"
android:src="#drawable/serverschedule"
android:background="#null"
android:clickable="true"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="#string/predict"
local:MvxBind="Click PredictCmd" />
I have also tried android:background="#00000000" and android:background="#android:color/transparent"and in all cases, I do get the desired visual effect but button no longer can be clicked.
I am using MvvmCross framework to binding to the Click event of the button, hence there is no code behind.
I am testing against API Level 15, if this matters.
EDIT Added entire axml for button.
EDIT Adding MVVM framework as it may have something to do with problem.
TIA.
Thanks for all of the suggestions.
This is what finally worked for me:
android:background="?android:attr/selectableItemBackground"
Based on responses from this thread.
Please provide width and height of your button.
Also try this :
ImageButton theButton = (ImageButton )findViewById(R.id.theButton);
theButton.setVisibility(View.VISIBLE);
theButton.setBackgroundColor(Color.TRANSPARENT);
theButton.setOnClickListener(new OnClickListener()
{
#Override
public void onClick(View v)
{
// DO STUFF
}
});
Hope this helps.
Do certain Necessary changes
<ImageButton
android:paddingRight="10dp"
android:paddingLeft="10dp"
android:paddingTop="7dp"
android:paddingBottom="7dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/serverschedule"
android:background="#null"
android:id="#+id/mybutton"
</ImageButton
Into Your code:
mybutton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View view) {
//Your Stuff here
}
});
try this...
<ImageButton
android:id="#+id/imageButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#id/timeText"
android:layout_centerHorizontal="true"
android:background="#android:color/transparent"
android:clickable="true"
android:contentDescription="image button"
android:src="#drawable/anchor" />
set clickable attribute to true, and handle onclick event in your activity like
findViewById(R.id.imageButton).setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Toast.makeText(getApplicationContext(), "text", Toast.LENGTH_SHORT).show();
}
});
No change in your xml file.. even no need to add this android:clickable="true"
edit your java file as below code...
ImageButton imageButton;
#Override
public void onCreate(Bundle savedInstanceState) {
imageButton = (ImageButton) findViewById(R.id.imageButton1);
imageButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
Toast.makeText(MyAndroidAppActivity.this,
"ImageButton is clicked!", Toast.LENGTH_SHORT).show();
}
});
}
}
If this doesn't work you might have problem with your parent layout. Please post that if so....
what's the meaning of the "acts as a button" ? when you use
android:background="#null"
your ImageButton will have no background and you can use selector as the src ,you'll get the same acts as a button,also can click as usual
selector like this
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="#drawable/button_bg_pressed" android:state_pressed="true"/>
<item android:drawable="#drawable/button_bg_pressed" android:state_focused="true"/>
<item android:drawable="#drawable/button_bg_normal"/>
</selector>
also see enter link description here
back.setBackgroundColor(Color.TRANSPARENT);
works for all android versions
I'm facing some complexities when developing a medium-complex Android application. I'm searching for information about the possibility of using code-behind-like techniques for easier maintanability of Android software.
Currently (please highlight anything wrong), I have found that in order to make a multi-step wizard with extra dialogs (eg. dialogs that are not part of the main sequence) I need to code a single XML layout file with a single ViewFlipper containing each subview as child node. Today I discovered how to navigate across views more than forward/backward (viewFlipper.setDisplayedChild(i)), giving access to extra views.
Now all the Java code is contained within the main Activity class, which is beginning to look bad. As an experienced .NET developer I have learned how to use custom controls to wrap both layout and business logic inside modules.
I know that in Android I can define a view programmatically as an independent class and add it to the main layout programmatically, however I want to know if it's possible in Android to define a layout by XML (for easier WYSIWYG creation/editing) and define all the code within a dedicated class, with initialization logic, button callbacks, async tasks, etc.
I'm not sure if it's feasible or there is a good compromise that can be achieved.
I have read this question without clearing my doubts.
Thank you.
Code examples:
An extract of the layout file (I expect 4 wizard steps, a help view and an EULA view)
<?xml version="1.0" encoding="utf-8"?>
<ViewFlipper xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/view_phone"
style="#android:style/Theme.Light.NoTitleBar"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<!-- First screen/welcome -->
<LinearLayout
android:id="#+id/view_phone_screen1"
style="#android:style/Theme.Light.NoTitleBar"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:weightSum="100" >
<TextView
android:id="#+id/view_phone_screen1_lblChooseProvider"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical|center_horizontal"
android:text="#string/view_phone_lblChooseProvider_1ststep"
android:textAppearance="?android:attr/textAppearanceLarge" />
<ImageButton
android:id="#+id/view_phone_btnFrecciarossa"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:clickable="true"
android:contentDescription="#string/provider_FRECCIAROSSA"
android:gravity="center_vertical|clip_vertical"
android:padding="10dp"
android:src="#drawable/logo_frecciarossa"
android:tag="#+id/provider_FRECCIAROSSA" />
<ImageButton
android:id="#+id/view_phone_btnItalo"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:clickable="true"
android:contentDescription="#string/provider_ITALO"
android:gravity="center_vertical|clip_vertical"
android:padding="10dp"
android:src="#drawable/logo_italo"
android:tag="#+id/provider_ITALO" />
</LinearLayout>
<!-- Second screen - will need to do some asynchronous task -->
<RelativeLayout
android:id="#+id/view_phone_screen2"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<TextView
android:id="#+id/view_phone_screen2_lblConnectingToWifi"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical|center_horizontal"
android:text="#string/view_phone_lblConnectToWifi_2ndstep"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="#+id/view_phone_step2_lblConnectedToWifi"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/imageView1"
android:layout_centerHorizontal="true"
android:layout_marginTop="58dp"
android:text="#string/view_phone_step2_connectingToWifi"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="#+id/view_phone_step2_lblPhoneNumber"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/editText1"
android:layout_below="#+id/view_phone_step2_lblConnectedToWifi"
android:layout_marginTop="51dp"
android:text="#string/view_phone_step2_msgInputPhoneNumber"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="#+id/view_phone_step2_lblUnableDetectPhoneNumber"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:text="#string/view_phone_step2_msgUnableDetectPhoneNumber"
android:textAppearance="?android:attr/textAppearanceSmall"
android:visibility="invisible" />
<Button
android:id="#+id/view_phone_screen2_backward"
style="#style/buttonBackward" />
<Button
android:id="#+id/view_phone_screen2_forward"
style="#style/buttonForward_disabled"
android:enabled="false" />
<EditText
android:id="#+id/view_phone_step2_txtPhoneNumber"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignRight="#+id/view_phone_step2_lblPhoneNumber"
android:layout_below="#+id/view_phone_step2_lblPhoneNumber"
android:inputType="phone"
android:singleLine="true" >
<requestFocus />
</EditText>
</RelativeLayout>
</ViewFlipper>
Code example from Activity (expect to implement ALL the logic of 4+2 step wizard)
public class MyActivity extends Activity {
/** Called when the activity is first created. */
private final static String LOG_TAG = "LOG_TAG";
private int stepNumber;
#Override
public void onCreate(Bundle savedInstanceState) {
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
this.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
super.onCreate(savedInstanceState);
this.stepNumber=1;
setContentView(R.layout.view_phone);
//This class wraps the click for the two buttons
ProviderSelectionListener providerSelectionListener = new ProviderSelectionListener(this);
this.findViewById(R.id.view_phone_btnFrecciarossa).setOnClickListener(providerSelectionListener);
this.findViewById(R.id.view_phone_btnItalo).setOnClickListener(providerSelectionListener);
}
#Override
protected void onPause() {
super.onPause();
try {
if (MyApplication.getPlatformManager() != null)
MyApplication.getPlatformManager().onApplicationPause();
} catch (MyCustomException e) {
// WTF (Worse Than Failure!)
Log.e(LOG_TAG, super.getString(R.string.zf_error_unknown_error_pauseactivity), e);
e.printStackTrace();
}
}
#Override
protected void onResume() {
super.onResume();
try {
if (MyApplication.getPlatformManager() != null)
MyApplication.getPlatformManager().onApplicationResume();
} catch (MyCustomException e) {
// WTF (Worse Than Failure!)
Log.e(LOG_TAG, super.getString(R.string.zf_error_unknown_error_pauseactivity), e);
e.printStackTrace();
}
}
/*
* SLIDE INIZIO
*/
protected void slideNext() {
ViewFlipper vf = (ViewFlipper) findViewById(R.id.view_phone);
vf.setOutAnimation(getApplicationContext(), R.anim.slide_out_left);
vf.setInAnimation(getApplicationContext(), R.anim.slide_in_right);
vf.showNext();
}
protected void slidePrevious() {
ViewFlipper vf = (ViewFlipper) findViewById(R.id.view_phone);
vf.setOutAnimation(getApplicationContext(), R.anim.slide_out_right);
vf.setInAnimation(getApplicationContext(), R.anim.slide_in_left);
vf.showPrevious();
}
/*
* SLIDE FINE
*/
/*
* STEP 1 INIZIO
*/
public void completeStep1(ISmsWifiProvider provider) {
if (provider == null) {
Log.e(LOG_TAG, "Provider nullo");
return;
}
MyApplication.setAuthenticationProvider(provider);
slideNext();
initializeStep2();
}
public void returnToStep1() {
MyApplication.setAuthenticationProvider(null);
slidePrevious();
}
/*
* STEP 1 FINE
*/
/*
* STEP 2 INIZIO
*/
private void initializeStep2() {
// Event handler
Button backButton = (Button) findViewById(R.id.view_phone_screen2_backward), fwButton = (Button) findViewById(R.id.view_phone_screen2_forward);
fwButton.setEnabled(false);
backButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
returnToStep1();
}
});
}
/*
* STEP 2 FINE
*/
#Override
public void onBackPressed() {
// This will be called either automatically for you on 2.0
// or later, or by the code above on earlier versions of the
// platform.
return;
}
}
I want to know if it's possible in Android to define a layout by XML (for easier WYSIWYG creation/editing) and define all the code within a dedicated class, with initialization logic, button callbacks, async tasks, etc.
Yes. It is one of the techniques for creating a custom View. For example, I have a custom ColorMixer widget in this project, which can be used directly in an activity, or in a dialog, or in a custom preference.
I agree with your tactical decision to implement a wizard via a ViewFlipper -- see this answer to another StackOverflow question for "Murphy's Theory of the Activity".
I suspect that the right answer, longer term, is for somebody (who might be me) to come up with a Fragment-based wizard pattern, as that gives you the decoupling you desire.
I know this is so easy (doh...) but I am looking for a way to run a method on tapping or clicking a TextView line of text in an Android App.
I keep thinking about button listeners and anonymous method listener calls, but it just does not seem to apply to TextView.
Can someone point me at some code snippet to show how clicking or tapping on a piece of text in a TextView runs a method?
You can set the click handler in xml with these attribute:
android:onClick="onClick"
android:clickable="true"
Don't forget the clickable attribute, without it, the click handler isn't called.
main.xml
...
<TextView
android:id="#+id/click"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Click Me"
android:textSize="55sp"
android:onClick="onClick"
android:clickable="true"/>
...
MyActivity.java
public class MyActivity extends Activity {
public void onClick(View v) {
...
}
}
This may not be quite what you are looking for but this is what worked for what I'm doing. All of this is after my onCreate:
boilingpointK = (TextView) findViewById(R.id.boilingpointK);
boilingpointK.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if ("Boiling Point K".equals(boilingpointK.getText().toString()))
boilingpointK.setText("2792");
else if ("2792".equals(boilingpointK.getText().toString()))
boilingpointK.setText("Boiling Point K");
}
});
OK I have answered my own question (but is it the best way?)
This is how to run a method when you click or tap on some text in a TextView:
package com.textviewy;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.TextView;
public class TextyView extends Activity implements OnClickListener {
TextView t ;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
t = (TextView)findViewById(R.id.TextView01);
t.setOnClickListener(this);
}
public void onClick(View arg0) {
t.setText("My text on click");
}
}
and my main.xml is:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<LinearLayout android:id="#+id/LinearLayout01" android:layout_width="wrap_content" android:layout_height="wrap_content"></LinearLayout>
<ListView android:id="#+id/ListView01" android:layout_width="wrap_content" android:layout_height="wrap_content"></ListView>
<LinearLayout android:id="#+id/LinearLayout02" android:layout_width="wrap_content" android:layout_height="wrap_content"></LinearLayout>
<TextView android:text="This is my first text"
android:id="#+id/TextView01"
android:layout_width="wrap_content"
android:textStyle="bold"
android:textSize="28dip"
android:editable = "true"
android:clickable="true"
android:layout_height="wrap_content">
</TextView>
</LinearLayout>
from inside an activity that calls a layout and a textview, this click listener works:
setContentView(R.layout.your_layout);
TextView tvGmail = (TextView) findViewById(R.id.tvGmail);
String TAG = "yourLogCatTag";
tvGmail.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View viewIn) {
try {
Log.d(TAG,"GMAIL account selected");
} catch (Exception except) {
Log.e(TAG,"Ooops GMAIL account selection problem "+except.getMessage());
}
}
});
the text view is declared like this (default wizard):
<TextView
android:id="#+id/tvGmail"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="#string/menu_id_google"
android:textSize="30sp" />
and in the strings.xml file
<string name="menu_id_google">Google ID (Gmail)</string>
Although you can resolve the problem by setting the listener to textview, it's recommended not to. You should use flat button as it is a subclass of Button and it provides many attributes which TextView doesn't.
To use flat button, add style="?android:attr/borderlessButtonStyle" attribute -
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="DONE"
style="?android:attr/borderlessButtonStyle"/>
in textView
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New Text"
android:onClick="onClick"
android:clickable="true"
You must also implement View.OnClickListener and in On Click method can use intent
Intent intent = new Intent(android.content.Intent.ACTION_VIEW);
intent.setData(Uri.parse("https://youraddress.com"));
startActivity(intent);
I tested this solution works fine.
To click on a piece of the text (not the whole TextView), you can use Html or Linkify (both create links that open urls, though, not a callback in the app).
Linkify
Use a string resource like:
<string name="links">Here is a link: http://www.stackoverflow.com</string>
Then in a textview:
TextView textView = ...
textView.setText(R.string.links);
Linkify.addLinks(textView, Linkify.ALL);
Html
Using Html.fromHtml:
<string name="html">Here you can put html <a href="http://www.stackoverflow.com">Link!</></string>
Then in your textview:
textView.setText(Html.fromHtml(getString(R.string.html)));
You can use TextWatcher for TextView, is more flexible than ClickLinstener (not best or worse, only more one way).
holder.bt_foo_ex.addTextChangedListener(new TextWatcher() {
#Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
// code during!
}
#Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
// code before!
}
#Override
public void afterTextChanged(Editable s) {
// code after!
}
});