解决 6.0 动态权限问题，支持 Rxjava、lambda

PermissionUtils.class

public class PermissionUtils {
 //自定义权限字符
 public static final String CAMERA = Manifest.permission.CAMERA;
 public static final String CALL = Manifest.permission.CALL_PHONE;
 public static final String WRITE = Manifest.permission.WRITE_EXTERNAL_STORAGE;
 public static final String READ = Manifest.permission.READ_EXTERNAL_STORAGE;
 public static final String CONTACTS = Manifest.permission.READ_CONTACTS;
 public static final String LOCATION = Manifest.permission.LOCATION_HARDWARE;
 private static RxPermissions rxPermission;

 public PermissionUtils(Context context) {
     if (context == null) {
         throw new NullPointerException("Context not null");
     }
     if (rxPermission == null) {
         rxPermission = RxPermissions.getInstance(context);
     }
 }

 public static PermissionUtils getInstance(Context context) {
     return new PermissionUtils(context);
 }

 public void setPermission(String permission, Listener listener) {
     if (TextUtils.isEmpty(permission)) {
         throw new NullPointerException("permission not null");
     }
     if (listener == null) {
         throw new NullPointerException("PermissionListener not null");
     }
     if (TextUtils.equals(permission, CAMERA)) {
         rxPermission.request(CAMERA).subscribe(listener::isPermission);
     } else if (TextUtils.equals(permission, CALL)) {
         rxPermission.request(CALL).subscribe(listener::isPermission);
     } else if (TextUtils.equals(permission, WRITE)) {
         rxPermission.request(WRITE).subscribe(listener::isPermission);
     } else if (TextUtils.equals(permission, READ)) {
         rxPermission.request(READ).subscribe(listener::isPermission);
     } else if (TextUtils.equals(permission, CONTACTS)) {
         rxPermission.request(CONTACTS).subscribe(listener::isPermission);
     } else if (TextUtils.equals(permission, LOCATION)) {
         rxPermission.request(LOCATION).subscribe(listener::isPermission);
     } else {
         throw new IllegalArgumentException("Please enter the correct permissions");
     }
 }

 public interface Listener {
     void isPermission(boolean grant);
 }

Activity

//PermissionUtils permission = PermissionUtils.getInstance(GestureLockActivity.this);
 PermissionUtils permission = new PermissionUtils(AndroidPermissionActivity.this);
 //6.0 权限拍照测试
 AndroidPermissionDialog dialog = new AndroidPermissionDialog();
 dialog.setResetDialogListener(new AndroidPermissionDialog.ResetDialogListener() {
 @Override
 public void photo() {
     permission.setPermission(PermissionUtils.CAMERA, grant -> {
         if (grant) {
             PhotoUtil.choose(AndroidPermissionActivity.this, 1)
         } else {
             Toast.makeText(AndroidPermissionActivity.this, "没有相机权限", Toast.LENGTH_SHORT).show(); 
         }
     });
 }

 @Override
 public void image() {
     permission.setPermission(PermissionUtils.READ, grant -> {
         if (grant) {
             PhotoUtil.choose(AndroidPermissionActivity.this, 0);
         } else {
             Toast.makeText(AndroidPermissionActivity.this, "没有相册权限", Toast.LENGTH_SHORT).show();       
         }
     });
 }

 @Override
 public void call() {
     permission.setPermission(PermissionUtils.CALL, grant -> {
         if (grant) {
             Intent intent = new Intent(Intent.ACTION_CALL, Uri.parse("tel:" + "10086"));
               startActivity(intent);
         } else {
             Toast.makeText(AndroidPermissionActivity.this, "没有拨打电话权限", Toast.LENGTH_SHORT).show();
         }  
     });
 }
 dialog.show(getFragmentManager(), "test");