Hi I have this code to move from firstActvivity to secondActivity
try {
Class ourClass = Class.forName("com.example.listexample.SecondActivity");
forTransferIntent = new Intent(FirstActivity.this, ourClass);
startActivity(forTransferIntent);
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
I want to open my whole class in a popup that contains a button of OK and Cancel and a textfield to extract data from. most popup I have seen are just informative. I am looking for a popup that I can create fields into.
Thanks!
You need to create custom dialog for it (to show activity in a popup)
step 1) create a layout with proper id's.
step 2) use the following code wherever you desire.
LayoutInflater factory = LayoutInflater.from(this);
final View deleteDialogView = factory.inflate(
R.layout.mylayout, null);
final AlertDialog deleteDialog = new AlertDialog.Builder(this).create();
deleteDialog.setView(deleteDialogView);
deleteDialogView.findViewById(R.id.yes).setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
//your business logic
deleteDialog.dismiss();
}
});
deleteDialogView.findViewById(R.id.no).setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
deleteDialog.dismiss();
}
});
deleteDialog.show();
3) in your mylayout use textview/edittext as you wish.(yes button here is your OK button)
hopefully this solves your problem.
Related
In my app I have implemented this custom dialog (which has a fairly complex layout) by extending DialogFragment. I expect this dialog to pop up when I click a button in my layout. (Which I have successfully achieved). But the problem is that the dialog shows up in a janky manner.
My custom dialog class:
public class CustomizeDialog extends DialogFragment implements AdapterView.OnItemSelectedListener {
// field declarations go here
#NonNull
#Override
public Dialog onCreateDialog(#Nullable Bundle savedInstanceState) {
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
LayoutInflater inflater = getActivity().getLayoutInflater();
View view = inflater.inflate(R.layout.customize_dialog, null);
builder.setView(view)
.setTitle("Customize")
.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
}
})
.setPositiveButton("Let's go!", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
Intent intent = new Intent();
intent.setAction("fromDialog");
intent.putExtra("ratio",getRatio(paperSizeSpinner.getSelectedItem().toString()));
if(isOrientationSpinnerVisible){
intent.putExtra("isCustom",false);
intent.putExtra("orientation",orientationSpinner.getSelectedItem().toString());
} else {
intent.putExtra("isCustom",true);
}
intentProvider.getIntent(intent);
}
});
widthEditText = view.findViewById(R.id.width_et);
heightEditText = view.findViewById(R.id.height_et);
widthEditText.setEnabled(false);
heightEditText.setEnabled(false);
paperSizeSpinner = view.findViewById(R.id.paper_size_spinner);
orientationSpinner = view.findViewById(R.id.orientation_spinner);
// ArrayList for populating paperSize spinner via paperSizeAdapter
ArrayList<String> paperSizes = new ArrayList<>();
paperSizes.add("A0");
paperSizes.add("A1");
paperSizes.add("A2");
paperSizes.add("A3");
paperSizes.add("A4");
paperSizes.add("A5");
paperSizes.add("Custom");
// ArrayList for populating orientation spinner via orientationAdapter
ArrayList<String> orientation = new ArrayList<>();
orientation.add("Portrait");
orientation.add("Landscape");
// arrayAdapters containing arraylists to populate spinners
ArrayAdapter paperSizeAdapter = new ArrayAdapter(getActivity(), android.R.layout.simple_spinner_dropdown_item, paperSizes);
ArrayAdapter orientationAdapter = new ArrayAdapter(getActivity(), android.R.layout.simple_spinner_dropdown_item, orientation);
paperSizeSpinner.setAdapter(paperSizeAdapter);
orientationSpinner.setAdapter(orientationAdapter);
paperSizeSpinner.setSelection(4);
paperSizeSpinner.setOnItemSelectedListener(this);
orientationSpinner.setOnItemSelectedListener(this);
return builder.create();
}
// These are some important complex ui functionalities
#Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
if (parent.getId() == R.id.paper_size_spinner) {
if (position == 6) {
widthEditText.setEnabled(true);
heightEditText.setEnabled(true);
orientationSpinner.setEnabled(false);
isOrientationSpinnerVisible = false;
} else {
widthEditText.setEnabled(false);
heightEditText.setEnabled(false);
orientationSpinner.setEnabled(true);
isOrientationSpinnerVisible = true;
}
}
}
#Override
public void onNothingSelected(AdapterView<?> parent) {
}
// interface used to communicate with the parent activity
public interface IntentProvider {
// this method is used to provide the intent to the parent activity
void getIntent(Intent intent);
}
// instantiating the interface object and throwing error if parent activity does not implement this interface
#Override
public void onAttach(#NonNull Context context) {
super.onAttach(context);
try {
intentProvider = (IntentProvider) context;
} catch (ClassCastException e) {
throw new ClassCastException(context.toString() + " must implement IntentProvider");
}
}
}
MainActivity class:
public class MainActivity extends AppCompatActivity implements CustomizeDialog.IntentProvider {
// field declarations go here
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
imageView = findViewById(R.id.image);
// instantiating the dialog
final CustomizeDialog dialog = new CustomizeDialog();
findViewById(R.id.button).setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// showing the dialog on click
dialog.show(getSupportFragmentManager(),"");
}
});
}
// via this method I receive the intent from the dialog
// I know intent might not be the best option for this function but let's let it be here for now
#Override
public void getIntent(Intent intent) {
ratio = intent.getFloatExtra("ratio",3);
isCustom = intent.getBooleanExtra("isCustom",false);
orientation = intent.getStringExtra("orientation");
launchChooser();
}
}
Let me know in the comments if you want the layout code for the dialog.
What I tried:
Implementing threading so that my dialog is ready in a background thread and show it onButtonClick. But this is not allowed in general as any other thread except UI thread aren't supposed to touch UI related events.
Using onCreateView instead of onCreateDialog to inflate the layout directly.
Making the dialog a global variable, initialized it in onCreate and then show the dialog onButtonClick.
Switched to CONSTRAINT LAYOUT
Using an activity as a dialog by setting the dialog theme to the activity in the manifest file.
Launched my app in a device with better hardware than mine.
BUT NOTHING WORKED
What I want:
Why is my dialog janky? and what I need to do to make the dialog pop up faster?
In case anybody wants here's the link to my app repo on github.
AlertDialog and DialogFragment frameworks are slow because they need to some time to do calculations and fragment stuffs. So a solution to this problem is, using the Dialog framework straight away.
Use the Dialog framework's constructor to initialize a Dialog object like this:
Dialog dialog = new Dialog(context, R.style.Theme_AppCompat_Dialog);
// the second parameter is not compulsory and you can use other themes as well
Define the layout and then use dialog.setContentView(R.layout.name_of_layout).
Use dialog.findViewById(R.id.name_of_view) to reference views from the dialog's layout file
And then implement the logic just like anyone would do in an activity class. Find out the best implementation for your use case by reading the official documentation.
Long press
When I long-click on an item of the message, the item will display and the layout changes like the picture. I want to make this , but i don't have a keyword to find this solution. I need a keyword or some example to make it.
Many ways you can do. I am going to share one example.
Implement View.OnLongClickListener as follows
private void setupLongPress() {
imageButton.setOnLongClickListener(new View.OnLongClickListener(){
#Override
public boolean onLongClick(View v){
// here your staff
// we added dialog method here as follows
createPreviewDialog();
return false;
}
});
}
Now use LayoutInflater to inflate new layout as a popup windows
private Dialog createPreviewDialog() {
View view = LayoutInflater.from(getContext()).inflate(R.layout.dialog_preview, null);
LinearLayout closeButton = view.findViewById(R.id.close);
closeButton.setOnClickListener (new View.OnClickListener (){
#Override
public void onClick ( View view ) {
dismiss();
}
});
View okButton = view.findViewById(R.id.ok);
loginButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
dismiss();
// here your staff
}
});
builder.setView(view);
return builder.create();
}
Why doesn't dialog dismiss on the first click (but shows Toast) ?
On the second click it dismisses (Toast is shown again).
private void networkDialog(){
final Dialog dialog = new Dialog(EnterActivity.this, android.R.style.Theme_Translucent_NoTitleBar);
dialog.setContentView(R.layout.custom_dialog);
Button nobutton = (Button) dialog.findViewById(R.id.dialogButLeft);
nobutton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
dialog.dismiss();
Toast.makeText(getApplicationContext(), "DIALOG", Toast.LENGTH_LONG).show();
}
});
dialog.show();
}
Try this way .Let me inform .I hope it will help you.
private void networkDialog()
{
final Dialog dialog = new Dialog(EnterActivity.this, android.R.style.Theme_Translucent_NoTitleBar);
dialog.setContentView(R.layout.custom_dialog);
Button nobutton = (Button) dialog.findViewById(R.id.dialogButLeft);
nobutton.setOnClickListener(this);
dialog.show();
}
Then Use onClick switch Statement
public void onClick(View view)
{
switch (view.getId())
{
case R.id.dialogButLeft:
Toast.makeText(getApplicationContext(), "DIALOG", Toast.LENGTH_LONG).show();
dialog.dismiss();
break;
}
}
A bit late but a colleague had the same issue and referred to this, are you absolutely sure that you're not creating two dialogs by calling networkDialog() twice?
Add some unique text to the dialog that will be visible to you when it's displayed like System.currentTimeMillis(), that way you can see if it's called twice because the text is different.
Or add logging / run in debug
Make your Button also final like this:
private void networkDialog(){
final Dialog dialog = new Dialog(EnterActivity.this, android.R.style.Theme_Translucent_NoTitleBar);
dialog.setContentView(R.layout.custom_dialog);
final Button nobutton = (Button) dialog.findViewById(R.id.dialogButLeft);
nobutton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
dialog.dismiss();
Toast.makeText(getApplicationContext(), "DIALOG", Toast.LENGTH_LONG).show();
}
});
dialog.show();
}
it's working for me in my app like this:
// Initialize variables
final Dialog passwordDialog = new Dialog(BPMActivity.this,R.style.CustomDialogStyle);
passwordDialog.setContentView(R.layout.password_view);
final Button btnCancel=(Button) passwordDialog.findViewById(R.id.btn_cancel);
btnCancel.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
passwordDialog.dismiss();
}
});
passwordDialog.show();
I don't know if this is still relevant to the OP. But I've been banging my head against the wall for quite some time trying to figure this one out. It appears to happen in later (5-6+) Android versions and did not occur on a 4.4.2 device which I have. The solution I've found is to setFocusableInTouchMode of the Button to false:
button.setFocusableInTouchMode(false)
This answer gave me the idea:
I have to click the button twice for it to work
i have an activity that when user click on button , a dialog open. in this dialog there is a spinner that have 3 choices: Blue,Red,Green. and there is a submit button. i want that when user select a color and click on submit, in caller activity, its String color set to selected color in dialog. i try this: but not worked. please help me....
String color;
String dialogColor;
showDialog.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
final Dialog dialog = new Dialog(context);
dialog.setContentView(R.layout.custom_dialog);
dialog.setTitle("my dialog");
Spinner spinner = (Spinner) dialog.findViewById(R.id.spinner);
final TextView status = (TextView) dialog.findViewById(R.id.status);
Button submit = (Button) dialog.findViewById(R.id.submit);
spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
dialogColor = parent.getItemAtPosition(position).toString();
status.setText("Color is: "+dialogColor);
color = dialogColor;
}
#Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
submit.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent();
intent.putExtra("Color",dialogColor);
dialog.dismiss();
}
});
dialog.show();
}
});
i use both of direct and with intent ways to assign my color String to selected value. but not worked. where i have mistake?
I think the best way to create custom dialogs now is the Dialog Fragment, because the simple dialog it's limited. For example it's the way to create a dialogs with material design. And you have a differents ways to take info from dialog fragment, the first and the second for example.
This is basic code to create a dialog fragment:
//Method to call and start dialog fragment class
public void ShowPhotoFilesDialog(Activity context,File photo){
//Declaration of classes
Custom_DialogFragment custom_dialogFragment = new Custom_DialogFragment ();
FragmentManager fragmentManager = context.getFragmentManager();
// The device is using a large layout, so show the fragment as a dialog
custom_dialogFragment.show(fragmentManager, "dialog");
}
And this is the basic dialog fragment class:
public class Custom_DialogFragment extends DialogFragment {
#Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
try {
// The only reason you might override this method when using onCreateView() is
// to modify any dialog characteristics. For example, the dialog includes a
// title by default, but your custom layout might not need it. So here you can
// remove the dialog title, but you must call the superclass to get the Dialog.
Dialog dialog = super.onCreateDialog(savedInstanceState);
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
//To hide action bar from layout
dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
//Declaration of controls
View v = getActivity().getLayoutInflater().inflate(R.layout.my_custom_layout);
builder.setView(v);
//My code
return builder.create();
}
catch (Exception ex){
Log.e("-- Custom_DialogFragment.onCreateDialog --","",ex);
return null;
}
}
}
Tell me if I helped you, good programming!
Alright, so I would like to have a custom dialog, but I cannot figure out for the life of me how to make it appear when the function is called.
public void addHomework() {
final Dialog alert = new Dialog(this);
alert.setTitle("Add Homework");
alert.setContentView(R.layout.homework_item_entry);
Button add_button = (Button) findViewById(R.id.add_homework_button);
Button cancel_button = (Button) findViewById(R.id.cancel_homework_button);
add_button.setOnClickListener( new OnClickListener() {
public void onClick(View v) {
Toast.makeText(ClassHomeworkList.this, "Adding homework", Toast.LENGTH_SHORT).show();
}
});
cancel_button.setOnClickListener( new OnClickListener() {
public void onClick(View v) {
alert.dismiss();
}
});
alert.show();
}
What could I do?
I know this is an old thread, but even after reading the Android docs it also was not obvious to me how to display a custom dialog using the standard Dialog class. Basically you can call:
this.showDialog(MANAGE_PASSWORD); // MANAGE_PASSWORD static final int
from your activity. Then instantiate the custom dialog in the onCreateDialog method:
protected Dialog onCreateDialog(int id) {
Dialog dialog;
switch(id) {
case MANAGE_PASSWORD:
dialog= getInstancePasswordDialog();
break;
case DIALOG_ABOUT:
// do the work to define the About Dialog
dialog= getInstanceAlertDialog(); // called "the first time"
break;
default:
dialog = null;
}
return dialog;
}
The code to instantiate the dialog is in getInstancePasswordDialog(). Here is the code sample.
I think you have the problem that your two buttons cannot be found by their ID's like this (as you are trying to find them in your main activity, but they are in the layout for the dialog)
Button add_button = (Button) findViewById(R.id.add_homework_button);
Button cancel_button = (Button) findViewById(R.id.cancel_homework_button);
But instead need to do:
Button add_button = (Button) alert.findViewById(R.id.add_homework_button);
Button cancel_button = (Button) alert.findViewById(R.id.cancel_homework_button);
Have you read the following document: http://developer.android.com/guide/topics/ui/dialogs.html#ShowingADialog ?
You should override your Activity's onCreateDialog(int) method as described there and then use showDialog(int)
LayoutInflater factory = LayoutInflater.from(this);
View view = factory.inflate(R.layout.dialog, null);
//the id is your root layout
LinearLayout layout = (LinearLayout) view.findViewById(R.id.layout);
alert.setContentView(layout);