Custom DialogFragment

gistfile1.java

package com.kuapay.library.fragment;

import android.app.Activity;
import android.app.Dialog;
import android.os.Bundle;
import android.support.v4.app.DialogFragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.widget.Button;
import android.widget.RelativeLayout;
import android.widget.TextView;

import com.kuapay.library.R;
import com.kuapay.library.interfaces.KuaCustomDialogFragmentInterface;
import com.kuapay.library.util.Kualog;

public class KuaCustomDialogFragment extends DialogFragment
{
    //region Variables
    private View dividerView;
    private TextView titleTextView;
    private TextView bodyTextView;
    private Button negativeButton;
    private Button positiveButton;
    private RelativeLayout buttonsRelativeLayout;
    private KuaCustomDialogFragmentInterface dialogCoordinator;
    //endregion

    //region Listeners
    private View.OnClickListener positiveClickListener = new View.OnClickListener()
    {
        @Override
        public void onClick(View view)
        {
            dialogCoordinator.onPositiveOrNeutralClicked(KuaCustomDialogFragment.this);
        }
    };

    private View.OnClickListener negativeClickListener = new View.OnClickListener()
    {
        @Override
        public void onClick(View view)
        {
            dialogCoordinator.onNegativeClicked(KuaCustomDialogFragment.this);
        }
    };
    //endregion

    //region Constructor
    public static KuaCustomDialogFragment newInstance(String messageBody)
    {
        return newInstance(messageBody, null, null, null, true);
    }

    public static KuaCustomDialogFragment newInstance(String messageBody, boolean isCancelable)
    {
        return newInstance(messageBody, null, null, null, isCancelable);
    }

    public static KuaCustomDialogFragment newInstance(String messageBody, String title, boolean isCancelable)
    {
        return newInstance(messageBody, title, null, null, isCancelable);
    }

    public static KuaCustomDialogFragment newInstance(String messageBody, String title, String neutralButtonText)
    {
        return newInstance(messageBody, title, null, neutralButtonText, true);
    }

    public static KuaCustomDialogFragment newInstance(String messageBody, String title, String neutralButtonText, boolean isCancelable)
    {
        return newInstance(messageBody, title, null, neutralButtonText, isCancelable);
    }

    public static KuaCustomDialogFragment newInstance(String messageBody, String title, String negativeButtonText, String positiveButtonText)
    {
        return newInstance(messageBody, title, negativeButtonText, positiveButtonText, true);
    }

    public static KuaCustomDialogFragment newInstance(String messageBody, String title, String negativeButtonText, String positiveButtonText, boolean isCancelable)
    {
        KuaCustomDialogFragment mCustomDialog = new KuaCustomDialogFragment();
        Bundle args = new Bundle();

        args.putString("body", messageBody);
        args.putBoolean("cancelable",isCancelable);
        if (title!= null)
            args.putString("title", title);
        if (negativeButtonText == null && positiveButtonText != null)
            args.putString("neutral", positiveButtonText);
        if (negativeButtonText != null && positiveButtonText != null)
        {
            args.putString("negative", negativeButtonText);
            args.putString("positive", positiveButtonText);
        }

        mCustomDialog.setArguments(args);

        return mCustomDialog;
    }
    //endregion

    @Override
    public void onAttach(Activity activity)
    {
        super.onAttach(activity);

        if(getParentFragment()  instanceof KuaCustomDialogFragmentInterface)
            dialogCoordinator = (KuaCustomDialogFragmentInterface) getParentFragment();
        else if (activity instanceof KuaCustomDialogFragmentInterface)
            dialogCoordinator = (KuaCustomDialogFragmentInterface) activity;
        else
            throw new ClassCastException("Parent container must implement KuaCustomDialogFragmentInterface");
    }

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState)
    {
        Dialog mDialog = new Dialog(getActivity(),android.R.style.Theme_Translucent);
        mDialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
        mDialog.setContentView(R.layout.fragment_dialog_layout);

        bindUIElements(mDialog);
        setUpListeners();

        mDialog.setCancelable(getArguments().getBoolean("cancelable"));
        setDialogBody(getArguments().getString("body"));
        setDialogTitle(getArguments().getString("title"));

        if (getArguments().getString("neutral") != null)
            setNeutralButtonText(getArguments().getString("neutral"));
        else
            setNegativePositiveButtonText(getArguments().getString("negative"), getArguments().getString("positive"));

        return mDialog;
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
    {
        dialogCoordinator.setUpKuaDialog(this);
        return super.onCreateView(inflater, container, savedInstanceState);
    }

    public void setDialogTitle(String title)
    {
        if (title != null && !title.equals(""))
        {
            titleTextView.setVisibility(View.VISIBLE);
            titleTextView.setText(title);
        }
        else
            titleTextView.setVisibility(View.GONE);
    }

    public void setNegativePositiveButtonText(String negativeText, String positiveText)
    {
        if (negativeText != null && !negativeText.equals("")
                && positiveText != null && !positiveText.equals(""))
        {
            buttonsRelativeLayout.setVisibility(View.VISIBLE);
            dividerView.setVisibility(View.VISIBLE);
            negativeButton.setVisibility(View.VISIBLE);
            negativeButton.setText(negativeText);
            positiveButton.setText(positiveText);
        }
    }

    public void setNeutralButtonText(String neutralText)
    {
        if (neutralText != null && !neutralText.equals(""))
        {
            buttonsRelativeLayout.setVisibility(View.VISIBLE);
            dividerView.setVisibility(View.GONE);
            negativeButton.setVisibility(View.GONE);
            positiveButton.setText(neutralText);
        }
    }

    private void setUpListeners()
    {
        positiveButton.setOnClickListener(positiveClickListener);
        negativeButton.setOnClickListener(negativeClickListener);
    }

    private void bindUIElements(Dialog mDialog)
    {
        titleTextView = (TextView)(mDialog.findViewById(R.id.title_textView));
        bodyTextView  = (TextView) mDialog.findViewById(R.id.dialog_body_textView);
        negativeButton = (Button) mDialog.findViewById(R.id.dialog_negative_button);
        positiveButton = (Button) mDialog.findViewById(R.id.dialog_positive_button);
        buttonsRelativeLayout = (RelativeLayout) mDialog.findViewById(R.id.dialog_buttons_relativeLayout);
        dividerView = mDialog.findViewById(R.id.dialog_divider_view);
    }

    private void setDialogBody(String body)
    {
        bodyTextView.setText(body);
    }
}