example - oncreatedialog android

¿Cómo usar el fragmento de diálogo?(showDialog obsoleto) Android

Question

Entiendo que existe esta documentación.

http://developer.android.com/reference/android/app/DialogFragment.html#AlertDialog

pero como nuevo aprendiz de Android / Java no es fácil entender la cantidad de código involucrado al escribir un simple diálogo de alerta que aparece con un mensaje de 2 opciones (sí / no).

Aquí está el código que tengo actualmente en mi archivo MainActivity:

final private int RESET_DIALOG = 0;
private OnClickListener resetButtonListener = new OnClickListener() {
@Override
public void onClick(View v) {
showDialog(RESET_DIALOG);
}
};
protected android.app.Dialog onCreateDialog(int id) {
switch(id) {
case RESET_DIALOG:
AlertDialog.Builder builder = new Builder(this);
return builder
.setMessage("Are you sure you want to reset the count?")
.setNegativeButton("No", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface arg0, int arg1) {
Toast.makeText(MainActivity.this, "Did not reset!", 5).show();
}
})
.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface arg0, int arg1) {
Toast.makeText(MainActivity.this, "Did Reset!", 5).show();
}
})
.create();
}
return null;
};

Este es mi intento de seguir las instrucciones en el sitio de Android: Archivo de actividad principal:

final private int RESET_DIALOG = 0;
private OnClickListener resetButtonListener = new OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(MainActivity.this, MainDialog.class);
startActivity(intent);
}
};
protected android.app.Dialog onCreateDialog(int id) {
switch(id) {
case RESET_DIALOG:
AlertDialog.Builder builder = new Builder(this);
return builder
.setMessage("Are you sure you want to reset the count?")
.setNegativeButton("No", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface arg0, int arg1) {
Toast.makeText(MainActivity.this, "Did not reset!", 5).show();
}
})
.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface arg0, int arg1) {
Toast.makeText(MainActivity.this, "Did Reset!", 5).show();
}
})
.create();
}
return null;
};

Luego creó una clase MainDialog: (Estoy realmente perdido en cómo hacer esto correctamente o aplicarlo)

package com.proteintracker;
import android.support.v4.app.DialogFragment;
public class MainDialog extends DialogFragment {
public static MyAlertDialogFragment newInstance(int title) {
MyAlertDialogFragment frag = new MyAlertDialogFragment();
Bundle args = new Bundle();
args.putInt("title", title);
frag.setArguments(args);
return frag;
}
}

No estoy seguro de si se suponía que debía crear una nueva clase para el fragmento y cómo aplicarlo a mi diálogo actual en la pantalla de actividad.

Answer 1

Ejemplo de DialogFragment usando Sherlock

FragmentManager fm = getSherlockActivity().getSupportFragmentManager();
DialogFragment dialog = new DialogFragment(){
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
// Use the Builder class for convenient dialog construction
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
builder
.setTitle(getString(R.string.delete)+"?")
.setPositiveButton(getString(android.R.string.ok), new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
// do something
}
})
.setNegativeButton(getString(android.R.string.cancel), new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dismiss();
}
});
// Create the AlertDialog object and return it
return builder.create();
}
};
dialog.setCancelable(true);
dialog.show(fm, "DELETE_DIALOG_FRAGMENT");

Answer 2

Puedes mostrar el diálogo así:

new AlertDialog.Builder(this)
.setMessage("Are you sure you want to reset the count?")
.setNegativeButton("No", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface arg0, int arg1) {
Toast.makeText(MainActivity.this, "Did not reset!", 5).show();
}
})
.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface arg0, int arg1) {
Toast.makeText(MainActivity.this, "Did Reset!", 5).show();
}
})
.create().show();

Answer 3

Puedes mostrar tu DialogFragment así:

void showDialog() {
DialogFragment newFragment = MyAlertDialogFragment.newInstance(
R.string.alert_dialog_two_buttons_title);
newFragment.show(getFragmentManager(), "dialog");
}

En su cuadro de diálogo de fragmentos, debe anular onCreateDialog y devolver su instancia de Dialog simple, por ejemplo, AlertDialog .

public static class MyAlertDialogFragment extends DialogFragment {
public static MyAlertDialogFragment newInstance(int title) {
MyAlertDialogFragment frag = new MyAlertDialogFragment();
Bundle args = new Bundle();
args.putInt("title", title);
frag.setArguments(args);
return frag;
}
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
int title = getArguments().getInt("title");
AlertDialog.Builder builder = new Builder(this);
return builder
.setMessage("Are you sure you want to reset the count?")
.setNegativeButton("No", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface arg0, int arg1) {
Toast.makeText(MainActivity.this, "Did not reset!", 5).show();
}
})
.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface arg0, int arg1) {
Toast.makeText(MainActivity.this, "Did Reset!", 5).show();
}
})
.create();
}
}

Answer 4

Alerta con vista personalizada.

public class MyAlertDialogFragment extends DialogFragment {
public static final String TITLE = "dataKey";
public static MyAlertDialogFragment newInstance(String dataToShow) {
MyAlertDialogFragment frag = new MyAlertDialogFragment();
Bundle args = new Bundle();
args.putString(TITLE, dataToShow);
frag.setArguments(args);
return frag;
}
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
String mDataRecieved = getArguments().getString(TITLE,"defaultTitle");
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
LayoutInflater inflater = getActivity().getLayoutInflater();
View view = inflater.inflate(R.layout.alert_layout, null);
TextView mTextView = (TextView) view.findViewById(R.id.textview);
mTextView.setText(mDataRecieved);
setCancelable(false);
builder.setView(view);
Dialog dialog = builder.create();
dialog.getWindow().setBackgroundDrawable(
new ColorDrawable(Color.TRANSPARENT));
return dialog;
}
}

Y alerta con la interfaz YesNoDialog

public class MyAlertDialogFragment extends DialogFragment {
public static final String TITLE = "dataKey";
private OnYesNoClick yesNoClick;
public static MyAlertDialogFragment newInstance(String dataToShow ) {
MyAlertDialogFragment frag = new MyAlertDialogFragment();
Bundle args = new Bundle();
args.putString(TITLE, dataToShow);
frag.setArguments(args);
return frag;
}
public void setOnYesNoClick(OnYesNoClick yesNoClick) {
this.yesNoClick = yesNoClick;
}
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
String mDataRecieved = getArguments().getString(TITLE,"defaultTitle");
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
builder
.setMessage("Message to Show")
.setNegativeButton("No", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface arg0, int arg1) {
if(yesNoClick != null)
yesNoClick.onNoClicked();
}
})
.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface arg0, int arg1) {
if(yesNoClick != null)
yesNoClick.onYesClicked();
}
});
Dialog dialog = builder.create();
dialog.getWindow().setBackgroundDrawable(
new ColorDrawable(Color.TRANSPARENT));
return dialog;
}
public interface OnYesNoClick{
void onYesClicked();
void onNoClicked();
}
}

Utilízalo como

private void showYesNoDialog(){
MyAlertDialogFragment yesNoAlert = MyAlertDialogFragment.newInstance(
"Data to Send");
yesNoAlert.show(getFragmentManager(), "yesNoAlert");
yesNoAlert.setOnYesNoClick(new MyAlertDialogFragment.OnYesNoClick() {
@Override
public void onYesClicked() {
//yes or ok clicked
}
@Override
public void onNoClicked() {
//no or cancel clicked
}
});
}