PermissionsTools

權限請求工具類

public class PermissionsTools {
    public static PermissionsTools.Builder with(Activity activity) {
        return new Builder(activity);
    }

    public static class Builder {

        private Activity mActivity;
        private List<String> permissionList;
        private List<String> hasPermissionList;

        public Builder(@NonNull Activity activity) {
            mActivity = activity;
            permissionList = new ArrayList<>();
            hasPermissionList = new ArrayList<>();
        }

        //添加需要請求的權限
        public Builder addPermission(@NonNull String permission) {
            if (!permissionList.contains(permission)) {
                permissionList.add(permission);
            }
            return this;
        }

        public Builder checkPermission(@NonNull String permission) {
            if (ActivityCompat.checkSelfPermission(mActivity, permission) != PackageManager.PERMISSION_GRANTED) {
                hasPermissionList.add(permission);
            }
            return this;
        }

        public List<String> initPermission() {
            List<String> list = new ArrayList<>();
            for (String permission : permissionList) {
                if (ActivityCompat.checkSelfPermission(mActivity, permission) != PackageManager.PERMISSION_GRANTED) {
                    list.add(permission);
                }
            }
            if (list.size() > 0) {
                ActivityCompat.requestPermissions(mActivity, list.toArray(new String[list.size()]), 1);
            }
            return list;
        }

        public boolean requestPermission() {
            List<String> list = new ArrayList<>();
            for (String permission : hasPermissionList) {
                if (ActivityCompat.checkSelfPermission(mActivity, permission) != PackageManager.PERMISSION_GRANTED) {
                    list.add(permission);
                }
            }
            if (list.size() > 0) {
                ActivityCompat.requestPermissions(mActivity, list.toArray(new String[list.size()]), 1);
                return false;
            } else {
                return true;
            }
        }
    }
}