basic4android 程序实例 一键隐藏文件夹

package folder.widget; import anywheresoftware.b4a.B4AMenuItem; import android.app.Activity; import android.os.Bundle; import anywheresoftware.b4a.BA; import anywheresoftware.b4a.BALayout; import anywheresoftware.b4a.B4AActivity; import anywheresoftware.b4a.ObjectWrapper; import anywheresoftware.b4a.objects.ActivityWrapper; import java.lang.reflect.InvocationTargetException; import anywheresoftware.b4a.B4AUncaughtException; import anywheresoftware.b4a.debug.*; import java.lang.ref.WeakReference; public class main extends Activity implements B4AActivity{ static main mostCurrent; static boolean afterFirstLayout; static boolean isFirst = true; private static boolean processGlobalsRun = false; BALayout layout; public static BA processBA; BA activityBA; ActivityWrapper _activity; java.util.ArrayList<B4AMenuItem> menuItems; private static final boolean fullScreen = false; private static final boolean includeTitle = true; public static WeakReference<Activity> previousOne; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); if (isFirst) { processBA = new BA(this.getApplicationContext(), null, null, "folder.widget", "main"); processBA.loadHtSubs(this.getClass()); float deviceScale = getApplicationContext().getResources().getDisplayMetrics().density; BALayout.setDeviceScale(deviceScale); } else if (previousOne != null) { Activity p = previousOne.get(); if (p != null && p != this) { anywheresoftware.b4a.keywords.Common.Log("Killing previous instance (main)."); p.finish(); } } if (!includeTitle) { this.getWindow().requestFeature(android.view.Window.FEATURE_NO_TITLE); } if (fullScreen) { getWindow().setFlags(android.view.WindowManager.LayoutParams.FLAG_FULLSCREEN, android.view.WindowManager.LayoutParams.FLAG_FULLSCREEN); } mostCurrent = this; processBA.activityBA = null; layout = new BALayout(this); setContentView(layout); afterFirstLayout = false; BA.handler.postDelayed(new WaitForLayout(), 5); } private static class WaitForLayout implements Runnable { public void run() { if (afterFirstLayout) return; if (mostCurrent.layout.getWidth() == 0) { BA.handler.postDelayed(this, 5); return; } mostCurrent.layout.getLayoutParams().height = mostCurrent.layout.getHeight(); mostCurrent.layout.getLayoutParams().width = mostCurrent.layout.getWidth(); afterFirstLayout = true; mostCurrent.afterFirstLayout(); } } private void afterFirstLayout() { activityBA = new BA(this, layout, processBA, "folder.widget", "main"); processBA.activityBA = new java.lang.ref.WeakReference<BA>(activityBA); _activity = new ActivityWrapper(activityBA, "activity"); anywheresoftware.b4a.Msgbox.isDismissing = false; initializeProcessGlobals(); initializeGlobals(); anywheresoftware.b4a.objects.ViewWrapper.lastId = 0; anywheresoftware.b4a.keywords.Common.Log("** Activity (main) Create, isFirst = " + isFirst + " **"); processBA.raiseEvent2(null, true, "activity_create", false, isFirst); isFirst = false; if (mostCurrent == null || mostCurrent != this) return; processBA.setActivityPaused(false); anywheresoftware.b4a.keywords.Common.Log("** Activity (main) Resume **"); processBA.raiseEvent(null, "activity_resume"); } public void addMenuItem(B4AMenuItem item) { if (menuItems == null) menuItems = new java.util.ArrayList<B4AMenuItem>(); menuItems.add(item); } @Override public boolean onCreateOptionsMenu(android.view.Menu menu) { super.onCreateOptionsMenu(menu); if (menuItems == null) return false; for (B4AMenuItem bmi : menuItems) { android.view.MenuItem mi = menu.add(bmi.title); if (bmi.drawable != null) mi.setIcon(bmi.drawable); mi.setOnMenuItemClickListener(new B4AMenuItemsClickListener(bmi.eventName.toLowerCase(BA.cul))); } return true; } private class B4AMenuItemsClickListener implements android.view.MenuItem.OnMenuItemClickListener { private final String eventName; public B4AMenuItemsClickListener(String eventName) { this.eventName = eventName; } public boolean onMenuItemClick(android.view.MenuItem item) { processBA.raiseEvent(item.getTitle(), eventName + "_click"); return true; } } public static Class<?> getObject() { return main.class; } private Boolean onKeySubExist = null; private Boolean onKeyUpSubExist = null; @Override public boolean onKeyDown(int keyCode, android.view.KeyEvent event) { if (onKeySubExist == null) onKeySubExist = processBA.subExists("activity_keypress"); if (onKeySubExist) { Boolean res = (Boolean)processBA.raiseEvent2(_activity, false, "activity_keypress", false, keyCode); if (res == null || res == true) return true; } return super.onKeyDown(keyCode, event); } @Override public boolean onKeyUp(int keyCode, android.view.KeyEvent event) { if (onKeyUpSubExist == null) onKeyUpSubExist = processBA.subExists("activity_keyup"); if (onKeyUpSubExist) { Boolean res = (Boolean)processBA.raiseEvent2(_activity, false, "activity_keyup", false, keyCode); if (res == null || res == true) return true; } return super.onKeyUp(keyCode, event); } @Override public void onNewIntent(android.content.Intent intent) { this.setIntent(intent); } @Override public void onPause() { super.onPause(); if (_activity == null) //workaround for emulator bug (Issue 2423) return; anywheresoftware.b4a.Msgbox.dismiss(true); anywheresoftware.b4a.keywords.Common.Log("** Activity (main) Pause, UserClosed = " + activityBA.activity.isFinishing() + " **"); processBA.raiseEvent2(_activity, true, "activity_pause", false, activityBA.activity.isFinishing()); processBA.setActivityPaused(true); mostCurrent = null; if (!activityBA.activity.isFinishing()) previousOne = new WeakReference<Activity>(this); anywheresoftware.b4a.Msgbox.isDismissing = false; } @Override public void onDestroy() { super.onDestroy(); previousOne = null; } @Override public void onResume() { super.onResume(); mostCurrent = this; anywheresoftware.b4a.Msgbox.isDismissing = false; if (activityBA != null) { //will be null during activity create (which waits for AfterLayout). ResumeMessage rm = new ResumeMessage(mostCurrent); BA.handler.post(rm); } } private static class ResumeMessage implements Runnable { private final WeakReference<Activity> activity; public ResumeMessage(Activity activity) { this.activity = new WeakReference<Activity>(activity); } public void run() { if (mostCurrent == null || mostCurrent != activity.get()) return; processBA.setActivityPaused(false); anywheresoftware.b4a.keywords.Common.Log("** Activity (main) Resume **"); processBA.raiseEvent(mostCurrent._activity, "activity_resume", (Object[])null); } } @Override protected void onActivityResult(int requestCode, int resultCode, android.content.Intent data) { processBA.onActivityResult(requestCode, resultCode, data); } private static void initializeGlobals() { processBA.raiseEvent2(null, true, "globals", false, (Object[])null); } public anywheresoftware.b4a.keywords.Common __c = null; public anywheresoftware.b4a.objects.LabelWrapper _label1 = null; public anywheresoftware.b4a.objects.LabelWrapper _label2 = null; public widgetservice _widgetservice = null; public static String _activity_create(boolean _firsttime) throws Exception{ //BA.debugLineNum = 13;BA.debugLine="Sub Activity_Create(Fir