vivo X21A在应用回到后台时无法显示悬浮窗

[pzl237]

vivo X21A，应用在前台可以显示悬浮窗，当应用在后台，悬浮窗就消失了。需要进入到手机权限管理，手动打开应用的悬浮窗权限，应用在后台才能显示悬浮窗。有办法解决吗？

[zhaozepeng]

判断悬浮窗权限在vivo x21a上会失效么？

[pzl237]

会失效哦。目前找到了解决办法：
public class VIVOHelper {

public static boolean checkPermission(Context context) {
    return getFloatPermissionStatus(context) == 0;
}

public static void applyPermission(Fragment fragment, int requestCode) {
    Intent intent = applyIntent(fragment.getContext());
    if (intent != null) {
        fragment.startActivityForResult(intent, requestCode);
    }
}

/**
 * 获取悬浮窗权限状态
 *
 * @param context 上下文
 * @return 1或其他是没有打开，0是打开，该状态的定义和{@link android.app.AppOpsManager#MODE_ALLOWED}，MODE_IGNORED等值差不多，自行查阅源码
 */
private static int getFloatPermissionStatus(Context context) {
    if (context == null) {
        throw new IllegalArgumentException("context is null");
    }
    String packageName = context.getPackageName();
    Uri uri = Uri.parse("content://com.iqoo.secure.provider.secureprovider/allowfloatwindowapp");
    String selection = "pkgname = ?";
    String[] selectionArgs = new String[]{packageName};
    Cursor cursor = context
            .getContentResolver()
            .query(uri, null, selection, selectionArgs, null);
    if (cursor != null) {
        cursor.getColumnNames();
        if (cursor.moveToFirst()) {
            int currentmode = cursor.getInt(cursor.getColumnIndex("currentlmode"));
            cursor.close();
            return currentmode;
        } else {
            cursor.close();
            return getFloatPermissionStatus2(context);
        }

    } else {
        return getFloatPermissionStatus2(context);
    }
}


/**
 * vivo比较新的系统获取方法
 *
 * @param context 上下文
 * @return 1或其他是没有打开，0是打开
 */
private static int getFloatPermissionStatus2(Context context) {
    String packageName = context.getPackageName();
    Uri uri2 = Uri.parse("content://com.vivo.permissionmanager.provider.permission/float_window_apps");
    String selection = "pkgname = ?";
    String[] selectionArgs = new String[]{packageName};
    Cursor cursor = context
            .getContentResolver()
            .query(uri2, null, selection, selectionArgs, null);
    if (cursor != null) {
        if (cursor.moveToFirst()) {
            int currentmode = cursor.getInt(cursor.getColumnIndex("currentmode"));
            cursor.close();
            return currentmode;
        } else {
            cursor.close();
            return 1;
        }
    }
    return 1;
}

private static List<Intent> intentList(Context paramContext) {
    List<Intent> intents = new ArrayList<>();
    Intent localIntent = new Intent();
    localIntent.putExtra("packagename", paramContext.getPackageName());
    localIntent.setComponent(new ComponentName("com.vivo.permissionmanager", "com.vivo.permissionmanager.activity.SoftPermissionDetailActivity"));
    intents.add(localIntent);

    localIntent = new Intent();
    localIntent.putExtra("packagename", paramContext.getPackageName());
    localIntent.setComponent(new ComponentName("com.iqoo.secure", "com.iqoo.secure.ui.phoneoptimize.FloatWindowManager"));
    intents.add(localIntent);

    localIntent = new Intent();
    localIntent.setComponent(new ComponentName("com.vivo.permissionmanager", "com.vivo.permissionmanager.activity.PurviewTabActivity"));
    intents.add(localIntent);

    localIntent = new Intent();
    localIntent.setComponent(new ComponentName("com.iqoo.secure", "com.iqoo.secure.MainActivity"));
    intents.add(localIntent);

    localIntent = new Intent();
    localIntent.setComponent(new ComponentName("com.iqoo.secure", "com.iqoo.secure.MainGuideActivity"));
    intents.add(localIntent);
    return intents;
}

@SuppressLint("WrongConstant")
private static boolean canQueryIntent(Context paramContext, Intent paramIntent) {
    boolean bool;
    if (paramContext.getPackageManager().queryIntentActivities(paramIntent, PackageManager.GET_PERMISSIONS).size() > 0)
        bool = true;
    else
        bool = false;
    return bool;
}

private static Intent applyIntent(Context paramContext) {
    List<Intent> intentList = intentList(paramContext);
    Intent destIntent = null;
    if (intentList.isEmpty()) {
        return null;
    }
    for (Intent intent : intentList) {
        if (canQueryIntent(paramContext, intent)) {
            destIntent = intent;
            break;
        }
    }
    return destIntent;
}

}

[zhaozepeng]

可以麻烦发一个Pull request么？