如何添加一个类别来我SyncAdapter [英] How can I add a category to my SyncAdapter

问题描述

我已经试过了很大的谷歌为例，从同步web服务和做工精细的接触。 这就是所谓的SampleSyncAdapter，真正值得： http://developer.android.com /resources/samples/SampleSyncAdapter/index.html

I have tried the great Google example to sync contact from a webservice and that work fine. This is called the SampleSyncAdapter and really worth it: http://developer.android.com/resources/samples/SampleSyncAdapter/index.html

我succed的一切，但我不能在这个例子中也没有文件的方式中添加，将链接到一个自定义活动，完全像下面的截图类别：

I succed everything, but I cannot found in the example nor in the documentation a way to add a category that would link to a custom activity, exactly like the screenshot below:

（我只有与复选框同步帐户选项）

(I have only the sync account option with the checkbox)

所以，我的问题是：我怎么能添加帐户设置类别

So, my question is: how can I add the account settings category?

推荐答案

赫歇尔的回答提供链接。以下是如何修改的 SampleSyncAdapter 源添加自定义preferences（安卓2.3.4）看起来像上面的截图：

herschel's answer provides a link to a generic solution. Here's how to modify the SampleSyncAdapter source to add custom preferences (Android 2.3.4) that look like the screenshot above:

1. 记住，客户经理正在作为一个系统的过程，所以手机会死机如果有一个在你的code，缺少清单条目，或错误未处理的异常在你的XML。

1. Remember that the account manager is running as a system process, so the phone will crash if there's an unhandled exception in your code, a missing manifest entry, or an error in your xml.

创建一个 account_ preferences.xml 资源文件。

• 在实际的preference屏幕的安卓键值必须指定为account_settings。
• 如果你想要把你的自定义preferences的一类，你需要 关闭 preferenceCategory 标签，当你定义它;如果你把 preferenceScreen 类别里面，当你点击preference手机会死机。

• The actual preference screen's android:key value must be specified as "account_settings".
• If you want to put your custom preferences in a category, you need to close the PreferenceCategory tag when you define it; if you put the PreferenceScreen inside the category the phone will crash when you click on the preference.

XML：

<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
    <PreferenceCategory android:title="General Settings" />
    <PreferenceScreen android:key="account_settings"
            android:title="Account Settings"
            android:summary="Sync frequency, notifications, etc.">
        <intent android:action="com.example.android.samplesync.ACCOUNT_SETUP"
            android:targetPackage="com.example.android.samplesync"
            android:targetClass="com.example.android.samplesync.AccountPreferences" />
    </PreferenceScreen>
</PreferenceScreen>

添加引用 account_ preferences.xml 在 authenticator.xml 的结束

Add a reference to account_preferences.xml at the end of authenticator.xml:

<account-authenticator xmlns:android="http://schemas.android.com/apk/res/android"
    android:accountType="com.example.android.samplesync" android:label="@string/label"
    android:icon="@drawable/icon" android:smallIcon="@drawable/icon"

    android:accountPreferences="@xml/account_preferences" />

创建preference活动，并把它添加到清单。我用的样品code的简化版本，从答案的如何控制一个Android同步适配器preference？。

一个。 添加活动到清单

<activity android:label="Account Preferences" android:name=".AccountPreferences"
   android:theme="@android:style/Theme.Dialog" android:excludeFromRecents="true" />

乙。这里是最微不足道帐户preferences.java ：

b. Here's the most trivial AccountPreferences.java:

public class AccountPreferences extends PreferenceActivity {
    @Override
    public void onCreate(Bundle icicle) {
        super.onCreate(icicle);
        addPreferencesFromResource(R.xml.preferences_resources);
    }
}

℃。这里的 preferences_resources.xml 与硬codeD字符串：

c. Here's preferences_resources.xml with hard-coded strings:

<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
    <PreferenceCategory android:title="Privacy preferences"/>
        <CheckBoxPreference android:key="privacy_contacts" android:defaultValue="true"
                android:summary="Keep contacts private" android:title="Contacts"/>
    <PreferenceCategory android:title="Outgoing"/>
        <CheckBoxPreference android:key="allow_mail" android:defaultValue="true"
                android:summary="Allow email" android:title="Email"/>
</PreferenceScreen>

就是这样。安装code，打开帐户，并选择您SampleSyncAdapter帐户（用户1 的）。选择的帐户设置的，你看到的设置活动。

That's it. Install your code, open the accounts, and select your SampleSyncAdapter account (user1). Select Account Settings and you see the settings activity.

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