import com.yarolegovich.lovelydialog.LovelyTextInputDialog; //导入依赖的package包/类
@Override
public boolean onPreferenceClick(Preference preference) {
    if (preference.getKey().equals(getString(R.string.trainer_name_key))) {
        new LovelyTextInputDialog(getActivity())
                .setTopColor(ContextCompat.getColor(getActivity(), R.color.colorPrimary))
                .setTitle(getString(R.string.change_trainer_name))
                .setIcon(R.drawable.ic_info_white_24dp)
                .setInitialInput(pref.getString(SignUpActivity.USERNAME, "Error"))
                .setConfirmButton(android.R.string.ok, text -> {
                    if (!text.isEmpty()) {
                        pref.edit().putString(SignUpActivity.USERNAME, text).apply();
                        namePreference.setSummary(pref.getString(SignUpActivity.USERNAME, "Error"));
                    }
                }).show();
    }
    else if (preference.getKey().equals(getString(R.string.update_key))) {
        preference.setSummary(getString(R.string.checking));

        Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(getString(R.string.update_url)));
        startActivity(browserIntent);
    }
    return true;
}
 

import com.yarolegovich.lovelydialog.LovelyTextInputDialog; //导入依赖的package包/类
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    getSupportLoaderManager().initLoader(R.id.todo_items_loader_id, null, this);

    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);
    FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
    fab.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            new LovelyTextInputDialog(view.getContext())
                    .setConfirmButton(R.string.save, new LovelyTextInputDialog.OnTextInputConfirmListener() {
                        @Override
                        public void onTextInputConfirmed(String text) {
                            sObservable.notifyObservers(new Todo(text.trim()));
                        }
                    })
                    .show();
        }
    });

    RecyclerView rv = (RecyclerView) findViewById(R.id.content_main);
    rv.setLayoutManager(new LinearLayoutManager(this, LinearLayoutManager.VERTICAL, false));
    mAdapter = new Adapter();
    rv.setAdapter(mAdapter);
    rv.addItemDecoration(new DividerItemDecoration(this, DividerItemDecoration.VERTICAL));
}
 

import com.yarolegovich.lovelydialog.LovelyTextInputDialog; //导入依赖的package包/类
@Override
public void showEditTextInput(
        String key,
        CharSequence title,
        CharSequence defaultValue,
        final Listener<String> listener) {
    standardInit(new LovelyTextInputDialog(context)
            .setConfirmButton(android.R.string.ok, new LovelyTextInputDialog.OnTextInputConfirmListener() {
                @Override
                public void onTextInputConfirmed(String text) {
                    listener.onInput(text);
                }
            }), key, title)
            .show();
}