SelectAccountActivity.java

/*
 * Copyright (c) 2015 Zhang Hai <Dreaming.in.Code.ZH@Gmail.com>
 * All Rights Reserved.
 */

package me.zhanghai.android.douya.account.ui;

import android.accounts.Account;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;

import me.zhanghai.android.douya.R;
import me.zhanghai.android.douya.account.util.AccountUtils;
import me.zhanghai.android.douya.ui.SimpleDialogFragment;

public class SelectAccountActivity extends AppCompatActivity
        implements SimpleDialogFragment.ListenerProvider {

    private static final String KEY_PREFIX = SelectAccountActivity.class.getName() + '.';

    private static final String EXTRA_ON_SELECTED_INTENT = KEY_PREFIX + "on_selected_intent";

    private SimpleDialogFragment.Listener mDialogListener;

    public static Intent makeIntent(Intent onSelectedIntent, Context context) {
        return new Intent(context, SelectAccountActivity.class)
                .putExtra(SelectAccountActivity.EXTRA_ON_SELECTED_INTENT, onSelectedIntent);
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        // FIXME: Account list might change; don't use SimpleDialogFragment.
        final Account[] accounts = AccountUtils.getAccounts();
        int numAccounts = accounts.length;
        String[] accountNames = new String[numAccounts];
        for (int i = 0; i < numAccounts; ++i) {
            accountNames[i] = accounts[i].name;
        }

        mDialogListener = new SimpleDialogFragment.Listener() {
            @Override
            public void onSingleChoiceItemClicked(int requestCode, int index) {
                AccountUtils.setActiveAccount(accounts[index]);
                // Calling finish() before startActivity() makes it work when the Intent is a
                // launcher one.
                finish();
                Intent onSelectedIntent = getIntent().getParcelableExtra(EXTRA_ON_SELECTED_INTENT);
                startActivity(onSelectedIntent);
            }
            @Override
            public void onNegativeButtonClicked(int requestCode) {
                onCancel(requestCode);
            }
            @Override
            public void onCancel(int requestCode) {
                finish();
            }
        };

        if (savedInstanceState == null) {
            SimpleDialogFragment.makeSingleChoice(R.string.auth_select_account, accountNames, -1,
                    this)
                    .show(this);
        }
    }

    @Override
    public SimpleDialogFragment.Listener getDialogListener() {
        return mDialogListener;
    }
}