I am able to make the RadarChart work with some static data. Now i want to display a alert dialog when users click on the radarchart to ask the user to input some data and then use this input data to redraw the chart.
I have created a MyMarkerView class which extends MarkerView and in the refreshContent method add the code for the Alert Dialog view.
But the problem is that whenever uses click the AlerDialog, the refreshContent is again called and a new alert Dialog is created - and the user is not able to enter anything.
Below is the code in the refreshContent method
LayoutInflater li = LayoutInflater.from(mContext);
View promptsView = li.inflate(R.layout.month_target_analysis_dialog, null);
AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(mContext);
// set prompts.xml to alertdialog builder
alertDialogBuilder.setView(promptsView);
final EditText userInput1 = (EditText) promptsView.findViewById(R.id.textView1Edit);
final EditText userInput2 = (EditText) promptsView.findViewById(R.id.textView2Edit);
// set dialog message
alertDialogBuilder.setCancelable(false);
alertDialogBuilder.setPositiveButton("OK",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
// get user input and set it to result
// edit text
//result.setText(userInput.getText());
String input1 = userInput1.getText().toString();
String input2 = userInput1.getText().toString();
if (userInput1.getError() == null && userInput2.getError() == null) {
//Do something
} else {
}
}
});
alertDialogBuilder.setNegativeButton("Cancel",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
}
});
// create alert dialog
AlertDialog alertDialog = alertDialogBuilder.create();
// show it
alertDialog.show();
}
Below is the Xml layout
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/layout_root"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:padding="10dp" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingRight="10dp"
android:text="#string/l_target"
android:textAppearance="#style/ItemMedium" />
<EditText
android:id="#+id/textView1Edit"
android:layout_width="50dp"
android:layout_height="wrap_content"
android:paddingLeft="50dp"
android:clickable="false"
android:inputType="number"
>
<requestFocus />
</EditText>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<TextView
android:id="#+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingRight="10dp"
android:text="#string/g_target"
android:textAppearance="#style/ItemMedium" />
<EditText
android:id="#+id/textView2Edit"
android:layout_width="50dp"
android:layout_height="wrap_content"
android:paddingLeft="50dp"
android:clickable="false"
android:inputType="number"
>
</EditText>
</LinearLayout>
Any ideas how to disable the calling of refreshContent ?
Or is there any other better way of handling this ?
Thanks
Praveen
I was not able to make it work using the MarkerView. Instead i defined a setOnChartGestureListener to catch all the possible action on the chart and then handled the necessary action when the action was caught.
Seems to be working.
mChart.setOnChartGestureListener(new OnChartGestureListener() {
#Override
public void onChartSingleTapped(MotionEvent me) {
// TODO Auto-generated method stub
Log.e(LOG_TAG, "single tap");
}
#Override
public void onChartDoubleTapped(MotionEvent me) {
// TODO Auto-generated method stub
Log.e(LOG_TAG, "double tap");
}
}
Thanks
Related
I created a custom alert dialog to show in my app. It has an imageView, two textViews and a button. I am trying to show this custom alert dialog once my main activity launches.I am calling this custom alert dialog.show() in a separate method according to my requirement.The custom alert dialog is showing up but on click of a button it is not getting dismissed, also the custom alert dialog is showing a extra white background.
showCustomAlertDialog() Method
public void showCustomAlertDialog() {
LayoutInflater layoutInflater = LayoutInflater.from(this);
final View promptView =layoutInflater.inflate(R.layout.reminder_alert_dialog, null);
final AlertDialog builder = new AlertDialog.Builder(this).create();
Button recordButton = (Button)promptView.findViewById(R.id.record_button);
recordButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
System.out.println("Dismiss the dialog");
builder.dismiss();
}
});
builder.setView(promptView);
builder.show();
}
reminder_alert_dialog Layout
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageView
android:id="#+id/image_view"
android:layout_width="wrap_content"
android:layout_height="500dp"
android:background="#drawable/ic_alert" />
<TextView
android:id="#+id/greetings_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="GOOD MORNING, KEVIN"
android:textColor="#000000"
android:textSize="20sp"
android:textStyle="bold"
android:layout_marginTop="200dp"
android:layout_centerHorizontal="true"/>
<TextView
android:id="#+id/medicines_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Have you taken your medicines today?"
android:textColor="#000000"
android:textSize="15sp"
android:textStyle="normal"
android:layout_below="#id/greetings_text"
android:layout_marginTop="50dp"
android:layout_centerHorizontal="true"/>
<Button
android:id="#+id/record_button"
android:layout_width="160dp"
android:layout_height="40dp"
android:background="#3BC4B8"
android:text="Record"
android:textSize="20sp"
android:textColor="#ffffff"
android:layout_below="#id/medicines_text"
android:layout_marginTop="60dp"
android:layout_centerHorizontal="true"/>
</RelativeLayout>
Coming to the extra white background, you have to apply the Window Background colour to transparent for the AlertDialog with this code
Dialog alertDialog = new Dialog(this);
alertDialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
alertDialog.setContentView(R.layout.tabs);
alertDialog.getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
alertDialog.show();
And the issue where dialog isn't showing, is the System.out.println() called? I would also recommend you setting the view for the AlertDialog.Builder before setting the listeners like,
final AlertDialog builder = new AlertDialog.Builder(this).create();
builder.setView(promptView);
Button recordButton = (Button)promptView.findViewById(R.id.record_button);
recordButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
System.out.println("Dismiss the dialog");
builder.dismiss();
}
});
Try like this...
//class variables
AlertDialog dialog;
Button dismiss;
//Add your other views if required
//in onCreate() activity method
makeDialog();
//makeDialog() method code
void makeDialog(){
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Title");
View root = getLayoutInflater().inflate(R.layout.your_layout,null);
dismiss = root.findViewById(R.id.your_button_id);
//another views initialization goes here...
dismiss.setOnClickListener(new View.OnClickListener(){
dialog.dismiss();
//your logic or job...
});
builder.setView(root);
dialog = builder.create();
}
finally show the dialog whenever you want
dialog.show();
I have created a custom alertdialog with a radiogroup, radiobuttons, and edittext.
The goal is to trying to get the text value from the selected radiobutton and the edittext. At this point, I can only get the value entered in the edittext.
I have seen the following link and tried to adjust the code to adapt, but it seems that the code still doesn't work.
Android getting value from selected radiobutton
http://www.mkyong.com/android/android-radio-buttons-example/
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<RadioGroup
android:id="#+id/radioPersonGroup"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<RadioButton
android:id="#+id/gButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:layout_marginLeft="16dp"
android:layout_weight="1"
android:text="G" />
<RadioButton
android:id="#+id/kButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:layout_marginLeft="16dp"
android:layout_weight="1"
android:text="K" />
</RadioGroup>
<EditText
android:id="#+id/editText2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:layout_marginLeft="16dp"
android:layout_weight="1"
android:ems="10"
android:hint="$10.00"
android:inputType="numberDecimal" />
</LinearLayout>
java file
private RadioButton radioSelectedButton;
...
FloatingActionButton fab = findViewById(R.id.fab);
final RadioGroup group = findViewById(R.id.radioPersonGroup);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
final AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
final View dialogView = getLayoutInflater().inflate(R.layout.custom_dialog, null);
builder.setTitle("Who Paid")
.setView(dialogView)
.setCancelable(false)
.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
int selectedId = group.getCheckedRadioButtonId();
radioSelectedButton = (RadioButton) findViewById(selectedId);
Toast.makeText(MainActivity.this,
radioSelectedButton.getText(), Toast.LENGTH_SHORT).show();
EditText input = dialogView.findViewById(R.id.editText2);
Toast.makeText(MainActivity.this,input.getText().toString(), Toast.LENGTH_SHORT).show();
}
})
.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialogInterface, int i) {
dialogInterface.cancel();
}
});
AlertDialog alert = builder.create();
alert.show();
}
});
When I click on either buttons followed by the Ok to submit the dialog the following exception occurs.
java.lang.NullPointerException: Attempt to invoke virtual method 'int android.widget.RadioGroup.getCheckedRadioButtonId()' on a null object reference
You're getting a NullPointerException in this line
int selectedId = group.getCheckedRadioButtonId();
because you tried to "find" the RadioGroup in the wrong View when you wrote
final RadioGroup group = findViewById(R.id.radioPersonGroup);
The RadioGroup is part of the Dialog, so you need to look for it in the View tree of dialogView:
// inside onClick()
final View dialogView = getLayoutInflater().inflate(R.layout.custom_dialog, null);
final RadioGroup group = dialogView.findViewById(R.id.radioPersonGroup);
Similarly, you need to "find" selectedRadioButton in a ViewGroup which contains it. e.g.
radioSelectedButton = (RadioButton) dialogView.findViewById(selectedId);
or
radioSelectedButton = (RadioButton) group.findViewById(selectedId);
I have a custom AlertDialog with radio buttons which will open on click of a textview. Everything is working as it is supposed to except that the radio buttons are never shown as "checked". Whenever I open the AlertDialog all of the buttons are unchecked. After selecting a button and opening the AlertDialog again the buttons are unchecked again.
My XML:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:padding="15dp">
<RadioGroup
android:id="#+id/rg_gender"
android:layout_width="200dp"
android:layout_height="wrap_content"
android:layout_marginRight="30dp"
android:layout_marginLeft="30dp"
android:layout_marginTop="10dp"
android:orientation="vertical"
android:layout_gravity="center_horizontal">
<RadioButton
android:id="#+id/buttonMale"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/therapist_male"
/>
<RadioButton
android:id="#+id/buttonFemale"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/therapist_female"
/>
<RadioButton
android:id="#+id/buttonEither"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/therapist_either"
/>
</RadioGroup>
</LinearLayout>
My AlertDialog:
private void therapistDialog() {
final AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(getActivity());
LayoutInflater inflater = getActivity().getLayoutInflater();
View dialogView = inflater.inflate(R.layout.gender_dialog, null);
dialogBuilder.setView(dialogView);
dialogBuilder.setNegativeButton(getResources().getString(R.string.cancel_button), new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
final AlertDialog alertDialog = dialogBuilder.show();
final RadioGroup rg = (RadioGroup) dialogView.findViewById(R.id.rg_gender);
rg.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
#Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
if (checkedId == R.id.buttonMale){
tvGender.setText(getResources().getString(R.string.therapist_male));
therapistSex = 0;
mMassage.setTherapistSex(therapistSex);
male.setChecked(true);
alertDialog.dismiss();
} else if (checkedId == R.id.buttonFemale){
tvGender.setText(getResources().getString(R.string.therapist_female));
therapistSex = 1;
mMassage.setTherapistSex(therapistSex);
alertDialog.dismiss();
} else if (checkedId == R.id.buttonEither){
tvGender.setText(getResources().getString(R.string.therapist_either));
therapistSex = 2;
mMassage.setTherapistSex(therapistSex);
alertDialog.dismiss();
}
}
});
You are not restoring the state of dialog on opening and assign a new instance of AlertDialog every time You invoke therapistDialog method.
Try to check the button on AlertDialog view init.
Add
int buttonToCheck = mMassage.getTherapistSex();
RadioGroup radioGroup = dialogView.findViewById(R.id.rg_gender);
int buttonId = radioGroup.getChildAt(buttonToCheck).getId();
radioGroup.check(radioGroup.getChildAt(buttonToCheck).getId());
Before invoking dialogBuilder.setView(dialogView);
Every time you call the method therapistDialog() is creating a new instance of the alertDialogBuilder. You must create instance of the alertDialogBuilder only once globally,
and just call
final AlertDialog alertDialog = dialogBuilder.show(); inside your method.
note: this is not tested but this should work and will maintain your check box states also
I have an Text View on which when user click will open a alert dialog. The dialog consists of Edit Text and a button. In Edit text when user enters it's height and clicks on "OK" button,the entered height will gets displayed to the Edit Text.
MainActivity.java
et_weightAndHeight = (EditText) findViewById(R.id.et_weightAndHeight);
et_weightAndHeight.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
LayoutInflater li = LayoutInflater.from(AccountActivity.this);
View promptView = li.inflate(R.layout.prompts, null);
AlertDialog.Builder alertDialog = new AlertDialog.Builder(AccountActivity.this);
alertDialog.setView(promptView);
final EditText input = (EditText)findViewById(R.id.editTextDialogUserInput);
alertDialog.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
et_weightAndHeight.setText(input.getText().toString());
}
});
AlertDialog aD = alertDialog.create();
aD.show();
}
});
}
}
prompts.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/layout_root"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:padding="10dp" >
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Enter Weight in lbs : "
android:textAppearance="?android:attr/textAppearanceLarge" />
<EditText
android:id="#+id/editTextDialogUserInput"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<requestFocus />
</EditText>
</LinearLayout>
Without proper explanation and logcat, I am assuming you are getting NullPointerException because you haven't initialized the TextView inside the dialog properly.
Change,
final TextView input =(TextView)findViewById(R.id.editTextDialogUserInput);
to
final TextView input =(TextView)promptView.findViewById(R.id.editTextDialogUserInput);
This question already has answers here:
How to prevent a dialog from closing when a button is clicked
(21 answers)
Closed 3 years ago.
The subject kinda says it all.. I'm requesting a PIN code from the user, if they enter it, click the OK Positive Button and the PIN is incorrect I want to display a Toast but keep the dialog open. At the moment it closes automatically.. Sure this is very trivial thing to correct but can't find the answer yet.
Thanks..
You do not need to create a custom class. You can register a View.OnClickListener for the AlertDialog. This listener will not dismiss the AlertDialog. The trick here is that you need to register the listener after the dialog has been shown, but it can neatly be done inside an OnShowListener. You can use an accessory boolean variable to check if this has already been done so that it will only be done once:
/*
* Prepare the alert with a Builder.
*/
AlertDialog.Builder b = new AlertDialog.Builder(this);
b.setNegativeButton("Button", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {}
});
this.alert = b.create();
/*
* Add an OnShowListener to change the OnClickListener on the
* first time the alert is shown. Calling getButton() before
* the alert is shown will return null. Then use a regular
* View.OnClickListener for the button, which will not
* dismiss the AlertDialog after it has been called.
*/
this.alertReady = false;
alert.setOnShowListener(new DialogInterface.OnShowListener() {
#Override
public void onShow(DialogInterface dialog) {
if (alertReady == false) {
Button button = alert.getButton(DialogInterface.BUTTON_NEGATIVE);
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
//do something
}
});
alertReady = true;
}
}
});
Part of this solution was provided by http://groups.google.com/group/android-developers/browse_thread/thread/fb56c8721b850124#
Build a custom dialog with a EditText with the attribute android:password="true" a button, then manually set onClick listener the button, and explicitly choose what to do in it.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<EditText
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:minWidth="180dip"
android:digits="1234567890"
android:maxLength="4"
android:password="true"/>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<Button
android:id="#+id/Accept"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Accept"/>
</LinearLayout>
</LinearLayout>
Then when you want it to pop up:
final Dialog dialog = new Dialog(RealizarPago.this);
dialog.setContentView(R.layout.custom_dialog);
dialog.setTitle("PIN number:");
dialog.setCancelable(true);
Button button = (Button) dialog.findViewById(R.id.Accept);
button.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
if(password_wrong){
// showToast
} else{
dialog.dismiss();
// other stuff to do
}
}
});
dialog.show();
You can set an OnClickListener as follows to keep the dialog open:
public class MyDialog extends AlertDialog {
public MyDialog(Context context) {
super(context);
setMessage("Hello");
setButton(AlertDialog.BUTTON_POSITIVE, "Ok", (new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
// this will never be called
}
});
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getButton(AlertDialog.BUTTON_POSITIVE).setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (ok) {
// do something
dismiss();
} else {
Toast.makeText(getContext(), "when you see this message, the dialog should stay open", Toast.LENGTH_SHORT).show();
}
}
});
}
}
You can just continue using the dialog you already have, just put an if clause in the onClick() saying
if(pin_check_method){ //pin_check_method should be a boolean returned method
//close the Dialog, then continue
}
else{
//dont put the dialog.dismiss() in here, put instead
Toast.makeText(getApplicationContext(),"Invalid pin, please try again",Toast.LENGTH_LONG).show();
}
Now, to use this code, simply invoke text.setText(""); and put in the text you want here
common error is that when you type in:
TextView text = (TextView) findViewById(R.id.dialog);
you miss that it needs to actually be
dialog.findViewById
and this is regardless of what the name of the dialog is, in my example it just happens to be the same name.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/layout_root"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView android:id="#+id/text"
android:layout_height="wrap_content"
android:textColor="#FFF"
android:layout_centerHorizontal="true"
android:layout_width="wrap_content"/>
<Button android:text="Continue"
android:id="#+id/Button01"
android:layout_width="fill_parent"
android:layout_height="wrap_content" android:layout_below="#+id/text">
</Button>
</RelativeLayout>
Try this:
final AlertDialog alertDialog = new AlertDialog.Builder(context)
.setView(v)
.setTitle(R.string.my_title)
.setPositiveButton(android.R.string.ok, null) //Set to null. We override the onclick
.setNegativeButton(android.R.string.cancel, null)
.create();
alertDialog.setOnShowListener(new DialogInterface.OnShowListener() {
#Override
public void onShow(DialogInterface dialog) {
Button b = alertDialog.getButton(AlertDialog.BUTTON_POSITIVE);
b.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
// TODO Do something
}
});
}
});
alertDialog.show();
Source: Prevent Alertdialog from closing after button click
Hope This Helps! Good Luck!
Same problem for me in a FragmentDialog. Here's my criminal/elegant solution:
Remove all buttons from the dialog (positive,negative,neutral). Add your buttons from the xml.eg.:
<LinearLayout
android:layout_width="match_parent"
android:orientation="horizontal"
android:layout_height="wrap_content">
<Button
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="wrap_content"
android:id="#+id/button_cancel"
style="#style/Widget.AppCompat.Button.Borderless.Colored"
android:text="#android:string/cancel"
android:layout_gravity="left"
/>
<Button
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="wrap_content"
android:id="#+id/button_ok"
style="#style/Widget.AppCompat.Button.Borderless.Colored"
android:text="#android:string/ok"
android:layout_gravity="right"
/>
</LinearLayout>
And then in your code handle it with:
view.findViewById(R.id.button_ok).setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view2) {
if (wannaClose)
dismiss();
else
//do stuff without closing!
}
});
where view is the view assigned to the dialog!