optimize multi status layout

lib_base/src/main/java/com/android/base/app/fragment/BaseFragment.java

@@ -245,12 +245,19 @@ public class BaseFragment extends Fragment implements LoadingView, OnBackPressLi
     }
 
     private LoadingView getLoadingViewImpl() {
+        if (mLoadingViewImpl == null) {
+            mLoadingViewImpl = onCreateLoadingView();
+        }
         if (mLoadingViewImpl == null) {
             mLoadingViewImpl = BaseKit.get().getLoadingViewFactory().createLoadingDelegate(getContext());
         }
         return mLoadingViewImpl;
     }
 
+    protected LoadingView onCreateLoadingView() {
+        return null;
+    }
+
     @Override
     public void showLoadingDialog() {
         getLoadingViewImpl().showLoadingDialog(true);

lib_base/src/main/java/com/android/base/app/fragment/BaseListV2Fragment.kt

@@ -98,5 +98,6 @@ abstract class BaseListV2Fragment<T> : BaseFragment(), RefreshListLayout<T> {
     override fun showNetErrorLayout() = stateLayout.showNetErrorLayout()
     override fun showServerErrorLayout() = stateLayout.showServerErrorLayout()
     override fun isLoadingMore() = stateLayout.refreshView.isLoadingMore
+    override fun currentStatus() = stateLayout.currentStatus()
 
 }

lib_base/src/main/java/com/android/base/app/fragment/BaseStateDialogFragment.java

@@ -59,7 +59,7 @@ public abstract class BaseStateDialogFragment extends BaseDialogFragment impleme
         return mStateLayout.getRefreshView();
     }
 
-    protected void onRetry(int state) {
+    protected void onRetry(@StateLayoutConfig.RetryableState int state) {
         if (getRefreshView() != null) {
             if (!getRefreshView().isRefreshing()) {
                 autoRefresh();
@@ -142,4 +142,9 @@ public abstract class BaseStateDialogFragment extends BaseDialogFragment impleme
         getStateLayout().showServerErrorLayout();
     }
 
+    @Override
+    public int currentStatus() {
+        return mStateLayout.currentStatus();
+    }
+
 }

lib_base/src/main/java/com/android/base/app/fragment/BaseStateFragment.java

@@ -65,7 +65,7 @@ public abstract class BaseStateFragment extends BaseFragment implements RefreshS
         return mStateLayout.getRefreshView();
     }
 
-    protected void onRetry(int state) {
+    protected void onRetry(@StateLayoutConfig.RetryableState int state) {
         if (getRefreshView() != null) {
             if (!getRefreshView().isRefreshing()) {
                 autoRefresh();
@@ -149,4 +149,9 @@ public abstract class BaseStateFragment extends BaseFragment implements RefreshS
         getStateLayout().showServerErrorLayout();
     }
 
+    @Override
+    public int currentStatus() {
+        return mStateLayout.currentStatus();
+    }
+
 }

lib_base/src/main/java/com/android/base/app/fragment/RefreshLoadMoreStateLayoutImpl.kt

@@ -34,6 +34,7 @@ internal class RefreshLoadMoreStateLayoutImpl private constructor(layout: View)
     override fun showBlank() = checkMultiStateView().showBlank()
     override fun showNetErrorLayout() = checkMultiStateView().showNetErrorLayout()
     override fun showServerErrorLayout() = checkMultiStateView().showServerErrorLayout()
+    override fun currentStatus() = checkMultiStateView().currentStatus()
 
     override fun getStateLayoutConfig(): StateLayoutConfig = checkMultiStateView().stateLayoutConfig
 

lib_base/src/main/java/com/android/base/app/fragment/RefreshableStateLayoutImpl.java

@@ -129,6 +129,11 @@ final class RefreshableStateLayoutImpl implements RefreshStateLayout, StateLayou
         return this;
     }
 
+    @Override
+    public int currentStatus() {
+        return mMultiStateView.currentStatus();
+    }
+
     @Override
     public void refreshCompleted() {
         if (mRefreshView != null) {

lib_base/src/main/java/com/android/base/app/ui/StateLayout.java

@@ -24,4 +24,8 @@ public interface StateLayout {
     void showServerErrorLayout();
 
     StateLayoutConfig getStateLayoutConfig();
+
+    @StateLayoutConfig.ViewState
+    int currentStatus();
+
 }

lib_base/src/main/java/com/android/base/app/ui/StateLayoutConfig.java

@@ -29,6 +29,7 @@ public interface StateLayoutConfig {
             EMPTY,
             ERROR,
             NET_ERROR,
+            SERVER_ERROR,
     })
     @Retention(RetentionPolicy.SOURCE)
     @interface RetryableState {

lib_base/src/main/java/com/android/base/kotlin/DialogEx.kt

@@ -2,12 +2,14 @@ package com.android.base.kotlin
 
 import android.app.Dialog
 
-/**
+fun Dialog.notCancelable(): Dialog {
- *@author Ztiany
- *      Email: ztiany3@gmail.com
- *      Date : 2019-03-04 10:46
- */
-fun Dialog.noCancelable(): Dialog {
     this.setCancelable(false)
     return this
 }
+
+fun Dialog.onDismiss(action: () -> Unit): Dialog {
+    setOnDismissListener {
+        action()
+    }
+    return this
+}

lib_base/src/main/java/com/android/base/widget/SimpleMultiStateView.java

@@ -142,4 +142,10 @@ public class SimpleMultiStateView extends MultiStateView implements StateLayout
         return mStateProcessor.getStateLayoutConfigImpl();
     }
 
+    @Override
+    @ViewState
+    public int currentStatus() {
+        return getViewState();
+    }
+
 }

lib_base/src/main/java/com/android/base/widget/StateActionProcessor.java

@@ -6,6 +6,7 @@ import android.support.annotation.DrawableRes;
 import android.support.annotation.NonNull;
 import android.support.v4.content.ContextCompat;
 import android.text.TextUtils;
+import android.view.Gravity;
 import android.view.View;
 import android.widget.Button;
 import android.widget.ImageView;
@@ -102,7 +103,7 @@ public class StateActionProcessor extends StateProcessor {
         private final int mState;
         private Drawable mDrawable;
         private CharSequence mMessage;
-        private int mMessageGravity;
+        private int mMessageGravity = Gravity.CENTER;
         private CharSequence mActionText;
         private View mStateView;
         private TextView mMessageTv;