在数据列表页面增加了刷新按钮

glance/src/main/java/com/glance/guolindev/ui/data/DataActivity.kt

@@ -21,6 +21,7 @@ import android.content.Intent
 import android.graphics.Typeface
 import android.os.Bundle
 import android.view.Gravity
+import android.view.Menu
 import android.view.MenuItem
 import android.view.View
 import android.widget.EditText
@@ -86,6 +87,11 @@ class DataActivity : AppCompatActivity() {
      */
     private var editDialog: AlertDialog? = null
 
+    /**
+     * Prevent refreshing data frequently
+     */
+    private var loadCompletableState = false
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         binding = GlanceLibraryActivityDataBinding.inflate(layoutInflater)
@@ -116,6 +122,7 @@ class DataActivity : AppCompatActivity() {
             binding.progressBar.visibility = View.INVISIBLE
         }
         viewModel.columnsLiveData.observe(this) {
+            loadCompletableState = true
             initAdapter(table, it)
         }
         viewModel.updateDataLiveData.observe(this) {
@@ -134,6 +141,12 @@ class DataActivity : AppCompatActivity() {
         if (viewModel.columnsLiveData.value == null) {
             viewModel.getColumnsInTable(table)
         }
+
+    }
+
+    override fun onCreateOptionsMenu(menu: Menu?): Boolean {
+        menuInflater.inflate(R.menu.glance_menu_item, menu)
+        return true
     }
 
     override fun onOptionsItemSelected(item: MenuItem): Boolean {
@@ -142,6 +155,13 @@ class DataActivity : AppCompatActivity() {
                 finish()
                 return true
             }
+            R.id.action_refresh -> {
+                if(loadCompletableState){
+                    loadCompletableState = loadCompletableState.not()
+                    viewModel.getColumnsInTable(table)
+                }
+                return true
+            }
         }
         return super.onOptionsItemSelected(item)
     }
@@ -215,6 +235,7 @@ class DataActivity : AppCompatActivity() {
                 adapter.addLoadStateListener { loadState ->
                     when (loadState.refresh) {
                         is LoadState.NotLoading -> {
+                            binding.recyclerView.scrollToPosition(0)
                             binding.horizontalScroller.visibility = View.VISIBLE
                             binding.progressBar.visibility = View.INVISIBLE
                             if (loadStarted) {
@@ -264,6 +285,7 @@ class DataActivity : AppCompatActivity() {
      * Build a TableRowLayout as a row to show the columns of a table as title.
      */
     private fun buildTableTitle(columns: List<Column>, rowWidth: Int) {
+        binding.rowTitleLayout.removeAllViews()
         val param = binding.rowTitleLayout.layoutParams
         param.width = rowWidth
         columns.forEachIndexed { index, column ->

glance/src/main/java/com/glance/guolindev/ui/db/DBActivity.kt

@@ -18,6 +18,7 @@ package com.glance.guolindev.ui.db
 
 import androidx.appcompat.app.AppCompatActivity
 import android.os.Bundle
+import android.util.Log
 import android.view.View
 import androidx.lifecycle.ViewModelProvider
 import androidx.recyclerview.widget.DiffUtil

glance/src/main/res/drawable/ic_glance_refresh.xml

@@ -0,0 +1,4 @@
+<vector android:height="21.333334dp" android:viewportHeight="1024"
+    android:viewportWidth="1152" android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="#FFFFFFFF" android:pathData="M1034.11,515.07l0.06,-5.7C1034.24,256.77 828.67,51.2 576,51.2a456.96,456.96 0,0 0,-240 67.84,67.26 67.26,0 1,0 70.59,114.56A322.75,322.75 0,0 1,576 185.66a324.03,324.03 0,0 1,323.58 329.34h-114.5l183.49,262.72L1152,515.07h-117.89zM783.68,774.14c-13.7,0 -27.01,4.16 -38.27,11.9A322.75,322.75 0,0 1,576 833.92a324.03,324.03 0,0 1,-323.65 -329.34h114.56L183.42,241.86 0,504.58h117.89v5.7c0,252.61 205.44,458.18 458.11,458.18a456.96,456.96 0,0 0,240 -67.84,67.26 67.26,0 0,0 -32.32,-126.46z"/>
+</vector>

glance/src/main/res/menu/glance_menu_item.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+    <item
+        android:id="@+id/action_refresh"
+        android:title="Refresh"
+        android:icon="@drawable/ic_glance_refresh"
+        app:showAsAction="always" />
+
+</menu>