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Upgrade to version 2: post to github & use built-in v4 support
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ColinTree committed Jul 28, 2018
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5 changes: 5 additions & 0 deletions README.md
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# Swipe Refresh

This is a extension for appinventor

See [document](https://aix.colintree.cn/en/extensions/SwipeRefresh.html)
295 changes: 295 additions & 0 deletions SwipeRefresh.java
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package cn.colintree.aix.SwipeRefresh;

import com.google.appinventor.components.annotations.DesignerComponent;
import com.google.appinventor.components.annotations.DesignerProperty;
import com.google.appinventor.components.annotations.SimpleEvent;
import com.google.appinventor.components.annotations.SimpleFunction;
import com.google.appinventor.components.annotations.SimpleObject;
import com.google.appinventor.components.annotations.SimpleProperty;
import com.google.appinventor.components.annotations.UsesLibraries;
import com.google.appinventor.components.common.ComponentCategory;
import com.google.appinventor.components.common.PropertyTypeConstants;
import com.google.appinventor.components.runtime.AndroidNonvisibleComponent;
import com.google.appinventor.components.runtime.AndroidViewComponent;
import com.google.appinventor.components.runtime.Component;
import com.google.appinventor.components.runtime.ComponentContainer;
import com.google.appinventor.components.runtime.EventDispatcher;
import com.google.appinventor.components.runtime.ListView;
import com.google.appinventor.components.runtime.VerticalScrollArrangement;
import com.google.appinventor.components.runtime.util.YailList;

import android.content.res.Resources;
import android.support.v4.widget.SwipeRefreshLayout;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.R.color;

@DesignerComponent(version = SwipeRefresh.VERSION,
description = "by ColinTree at http://aix.colintree.cn",
category = ComponentCategory.EXTENSION,
nonVisible = true,
iconName = "aiwebres/icon.png")

@SimpleObject(external = true)
@UsesLibraries(libraries = "support-v4.aar")
public class SwipeRefresh extends AndroidNonvisibleComponent implements Component {

public static final int VERSION = 2;

private static final String LOG_TAG = "SwipeRefresh";

private ComponentContainer container;
private Resources res;

private SwipeRefreshLayout srl;

private boolean enabled = true;
private boolean nestedScrollingEnabled = true;
private boolean large = false;
private boolean scale = true;
private int dragStart = 0;
private int dragEnd = 150;
private int backgroundColor = 0xFFFAFAFA;
private YailList colorList;

public SwipeRefresh(ComponentContainer container) {
super(container.$form());
Log.d(LOG_TAG, "SwipeRefresh Created");

this.container = container;
res = container.$context().getResources();

ColorList(YailList.makeList(new Object[]{
_Color_holo_blue_bright(),
_Color_holo_green_light(),
_Color_holo_orange_light(),
_Color_holo_red_light()
}));
}

@SimpleEvent
public void Refresh() {
EventDispatcher.dispatchEvent(this, "Refresh");
}

@SimpleFunction
public void CancelRefreshing() {
if (srl != null) {
Refreshing(false);
}
}

@SimpleProperty
public void Refreshing(boolean refreshing) {
if (srl != null) {
srl.setRefreshing(refreshing);
}
}
@SimpleProperty
public boolean Refreshing() {
if (srl != null) {
return srl.isRefreshing();
}
return false;
}

@SimpleProperty
@DesignerProperty(editorType = PropertyTypeConstants.PROPERTY_TYPE_BOOLEAN, defaultValue = "True")
public void Enabled(boolean enabled) {
this.enabled = enabled;
if (srl != null) {
srl.setEnabled(enabled);
}
}
@SimpleProperty
public boolean Enabled() {
return enabled;
}

@SimpleProperty
@DesignerProperty(editorType = PropertyTypeConstants.PROPERTY_TYPE_BOOLEAN, defaultValue = "True")
public void NestedScrollingEnabled(boolean enabled) {
this.nestedScrollingEnabled = enabled;
if (srl != null) {
srl.setNestedScrollingEnabled(enabled);
}
}
@SimpleProperty
public boolean NestedScrollingEnabled() {
if (srl != null) {
return srl.isNestedScrollingEnabled();
}
return nestedScrollingEnabled;
}

@SimpleProperty
@DesignerProperty(editorType = PropertyTypeConstants.PROPERTY_TYPE_BOOLEAN, defaultValue = "False")
public void SizeLarge(boolean large) {
this.large = large;
if (srl != null) {
srl.setSize(large ? SwipeRefreshLayout.LARGE : SwipeRefreshLayout.DEFAULT);
}
}
@SimpleProperty
public boolean SizeLarge() {
return large;
}

@SimpleProperty
@DesignerProperty(editorType = PropertyTypeConstants.PROPERTY_TYPE_BOOLEAN, defaultValue = "True")
public void DragScale(boolean scale) {
this.scale = scale;
if (srl != null) {
srl.setProgressViewOffset(DragScale(), DragStart(), DragStart());
}
}
@SimpleProperty
public boolean DragScale() {
return scale;
}

@SimpleProperty
@DesignerProperty(editorType = PropertyTypeConstants.PROPERTY_TYPE_NON_NEGATIVE_INTEGER, defaultValue = "0")
public void DragStart(int dragStart) {
this.dragStart = dragStart;
if (srl != null) {
srl.setProgressViewOffset(DragScale(), DragStart(), DragStart());
}
}
@SimpleProperty
public int DragStart() {
return dragStart;
}

@SimpleProperty
@DesignerProperty(editorType = PropertyTypeConstants.PROPERTY_TYPE_NON_NEGATIVE_INTEGER, defaultValue = "150")
public void DragEnd(int dragEnd) {
this.dragEnd = dragEnd;
if (srl != null) {
srl.setProgressViewOffset(DragScale(), DragStart(), DragEnd());
}
}
@SimpleProperty
public int DragEnd() {
return dragEnd;
}

@SimpleProperty(description = "have to use the color that provided here")
@DesignerProperty(editorType = PropertyTypeConstants.PROPERTY_TYPE_COLOR, defaultValue = Component.DEFAULT_VALUE_COLOR_DEFAULT)
public void BackgroundColor(int color) {
if(color == Component.COLOR_DEFAULT) {
color = 0xFFFAFAFA;
}
this.backgroundColor = color;
if (srl != null) {
srl.setProgressBackgroundColorSchemeColor(color);
}
}
@SimpleProperty
public int BackgroundColor() {
return backgroundColor;
}

@SimpleProperty
public void ColorList(YailList list) {
if(list == null) {
return;
}
if (srl != null) {
this.colorList = list;
int[] color = new int[list.size()];
for(int i = list.size()-1; i >= 0; i--) { //avoid calling size() for many times
color[i] = Integer.parseInt(list.getString(i));
}
srl.setColorSchemeColors(color);
}
}
@SimpleProperty
public YailList ColorList() {
return colorList;
}

@SimpleFunction(description = "Vertical Scroll Arrangement allowed only")
public void RegisterArrangement(VerticalScrollArrangement arrangement) {
register(arrangement);
}
@SimpleFunction(description = "Vertical Scroll Arrangement allowed only")
public void RegisterListView(ListView listView) {
register(listView);
}

private void register(AndroidViewComponent component) {
if (srl != null) {
return;
}
srl = new SwipeRefreshLayout(container.$context());

Enabled(Enabled());
NestedScrollingEnabled(NestedScrollingEnabled());
DragScale(DragScale());
DragStart(DragStart());
DragEnd(DragEnd());
SizeLarge(SizeLarge());
BackgroundColor(BackgroundColor());
ColorList(ColorList());

srl.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
@Override
public void onRefresh() {
Refresh();
}
});

View child = component.getView();
ViewGroup vg = (ViewGroup) child.getParent();
if (vg.getChildCount() <= 0) {
return;
//check, though it is impossible
}
vg.addView(srl, vg.indexOfChild(child));
vg.removeView(child);
srl.addView(child);
}

@SimpleFunction
public int _Color_holo_blue_bright() {
return res.getColor(color.holo_blue_bright);
}
@SimpleFunction
public int _Color_holo_blue_dark() {
return res.getColor(color.holo_blue_dark);
}
@SimpleFunction
public int _Color_holo_blue_light() {
return res.getColor(color.holo_blue_light);
}
@SimpleFunction
public int _Color_holo_green_dark() {
return res.getColor(color.holo_green_dark);
}
@SimpleFunction
public int _Color_holo_green_light() {
return res.getColor(color.holo_green_light);
}
@SimpleFunction
public int _Color_holo_orange_dark() {
return res.getColor(color.holo_orange_dark);
}
@SimpleFunction
public int _Color_holo_orange_light() {
return res.getColor(color.holo_orange_light);
}
@SimpleFunction
public int _Color_holo_purple() {
return res.getColor(color.holo_purple);
}
@SimpleFunction
public int _Color_holo_red_dark() {
return res.getColor(color.holo_red_dark);
}
@SimpleFunction
public int _Color_holo_red_light() {
return res.getColor(color.holo_red_light);
}
}
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