ダイアログフラグメントの使用方法（非推奨のshowDialog）Android

Question

このドキュメントがあることを理解しています

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

しかし、新しいAndroid/Java学習者として、2つのオプション（yes/no）メッセージでポップアップする単純なアラートダイアログを書くことから、含まれるコードの量を理解することは容易ではありません。

MainActivityファイルに現在あるコードは次のとおりです。

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;
    };

これは、Androidサイト：Main Activity file：

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;
    };

次に、MainDialogクラスを作成しました（これを正しく行う方法または適用する方法が実際に失われています）。

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;
    }
}

フラグメントの新しいクラスを作成するかどうか、およびアクティビティ画面の現在のダイアログにそれを適用する方法がわからない。

Answer 1

次のようにDialogFragmentを表示できます：

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

断片化ダイアログでは、onCreateDialogをオーバーライドして、_Dialogなどの単純なAlertDialogのインスタンスを返す必要があります。

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 2

カスタムビューのアラート

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;

    }
}

およびYesNoDialogインターフェイスを使用したアラート

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();
    }
}

のように使用します

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
            }
        });
    }

Answer 3

Sherlockを使用したDialogFragmentの例

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 4

次のようなダイアログを表示できます。

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();