android 如何进入某个具体的应用管理页面

http://stackoverflow.com/questions/4421527/start-android-application-info-screen/4772481#4772481

　　private static final String SCHEME = "package";    private static final String APP_PKG_NAME_21 = "com.android.settings.ApplicationPkgName";    private static final String APP_PKG_NAME_22 = "pkg";    private static final String APP_DETAILS_PACKAGE_NAME = "com.android.settings";    private static final String APP_DETAILS_CLASS_NAME = "com.android.settings.InstalledAppDetails";
　　/** 进入管理应用程序的的详细信息页面 */    public static void showInstalledAppDetails(Context context,            String packageName) {        Intent intent = new Intent();        final int apiLevel = Build.VERSION.SDK_INT;        if (apiLevel >= 9) { // above 2.3            intent.setAction(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);            Uri uri = Uri.fromParts(SCHEME, packageName, null);            intent.setData(uri);        } else { // below 2.3            final String appPkgName = (apiLevel == 8 ? APP_PKG_NAME_22                    : APP_PKG_NAME_21);            intent.setAction(Intent.ACTION_VIEW);            intent.setClassName(APP_DETAILS_PACKAGE_NAME,                    APP_DETAILS_CLASS_NAME);            intent.putExtra(appPkgName, packageName);        }        context.startActivity(intent);    }

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