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Android APN 执行

发布于 2024-12-11 05:36:55 字数 63 浏览 0 评论 0原文

有人知道是否有一种以编程方式在设备上使用特定定义的 APN（不是默认的 APN）的方法？

谢谢。

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揪着可爱 2024-12-18 05:36:55

您可以使用 uri content://telephony/riers/preferapn 以编程方式查询和设置首选 APN。要设置新的首选 APN，您必须传入现有 APN 条目的数据库 ID。如果您传入 APN 的显示名称，以下函数可以执行此操作（例如：setPreferredApn(context, "Giffgaff");）

public static final Uri APN_TABLE_URI = Uri.parse("content://telephony/carriers");
public static final Uri APN_PREFER_URI = Uri.parse("content://telephony/carriers/preferapn");

public static boolean setPreferredApn(Context context, String name) {
    boolean changed = false;
    String columns[] = new String[] { Carriers._ID, Carriers.NAME };
    String where = "name = ?";
    String wargs[] = new String[] {name};
    String sortOrder = null;
    Cursor cur = context.getContentResolver().query(APN_TABLE_URI, columns, where, wargs, sortOrder);
    if (cur != null) {
        if (cur.moveToFirst()) {
            ContentValues values = new ContentValues(1);
            values.put("apn_id", cur.getLong(0));
            if (context.getContentResolver().update(APN_PREFER_URI, values, null, null) == 1)
                changed = true;
        }
        cur.close();
    }
    return changed;
}

我想我应该补充一点，您需要 WRITE_APN_SETTINGS 权限并且需要导入android.provider.Telephony 和 android.provider.Telephony.Carriers

4.0+ 更新

此功能随着 Android 的发布而被禁用4.0（工业控制系统）。启用 WRITE_APN_SETTINGS 权限不会影响您再设置 APN。请参阅此问题获取一些相关链接。在 API 页面上，现在明确声明此权限不供外部使用，这是内部强制执行的。

You can programmatically query and set the preferred APN using the uri content://telephony/carriers/preferapn. To set a new preferred APN you have to pass in the database ID of an existing APN entry. The following function can do this if you pass in the display name of the APN (eg: setPreferredApn(context, "Giffgaff");)

public static final Uri APN_TABLE_URI = Uri.parse("content://telephony/carriers");
public static final Uri APN_PREFER_URI = Uri.parse("content://telephony/carriers/preferapn");

public static boolean setPreferredApn(Context context, String name) {
    boolean changed = false;
    String columns[] = new String[] { Carriers._ID, Carriers.NAME };
    String where = "name = ?";
    String wargs[] = new String[] {name};
    String sortOrder = null;
    Cursor cur = context.getContentResolver().query(APN_TABLE_URI, columns, where, wargs, sortOrder);
    if (cur != null) {
        if (cur.moveToFirst()) {
            ContentValues values = new ContentValues(1);
            values.put("apn_id", cur.getLong(0));
            if (context.getContentResolver().update(APN_PREFER_URI, values, null, null) == 1)
                changed = true;
        }
        cur.close();
    }
    return changed;
}

I guess I should add that you need WRITE_APN_SETTINGS permission and need to import android.provider.Telephony and android.provider.Telephony.Carriers

UPDATE FOR 4.0+

This facility became disabled with the release of Android 4.0 (ICS). Enabling the WRITE_APN_SETTINGS permission has no effect on allowing you to set the APN any more. See this question for some relevant links. On the API page it now states explicitly this permission is not for external use and this is enforced internally.

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