Delphi - Fmx Samples

Studying Delphi FMX samples is essential, but blindly copying them leads to bugs. Here are five real-world problems and how to fix them.

Typical folder structure (local install):

FMX/
├── Controls/          # TListBox, TGrid, TTreeView, etc.
├── Data/              # LiveBindings, FireDAC, REST, DB-aware controls
├── Dialogs/           # TFileOpenDialog, TPrintDialog, custom dialogs
├── Drawing/           # Canvas, TBitmap, TPath, TShape
├── Effects/           # TShadowEffect, TGlowEffect, TBlurEffect
├── Gestures/          # TGestureManager, touch gestures
├── Graphics/          # 2D/3D transformations, shaders
├── Layout/            # TLayout, TGridLayout, TFlowLayout
├── Media/             # TMediaPlayer, TCamera, TMicrophone
├── Multi-Device/      # Platform-specific behaviors, conditional compilation
├── Sensors/           # Accelerometer, gyroscope, location
├── Styles/            # Custom style books, dynamic styling
├── 3D/                # TViewport3D, TLight, TModel3D, collision detection
└── Web/               # TWebBrowser, TWebBrowser (embedded Chromium)

Even great samples can be outdated or misused. Watch out for these issues:

// Camera capture with QR detection and 3D augmentation
TCameraOverlay = class
  procedure ProcessCameraFrame(Bitmap: TBitmap);
  procedure DetectQRAndOverlay3D;
end;

This spectrum analyzer showcases:

The code is ready to compile - just add the necessary FMX components to your form and you'll have an impressive demo that shows off Delphi's multimedia and 3D capabilities! delphi fmx samples

Master Multi-Platform Development: A Deep Dive into Delphi FMX Samples

The promise of "write once, deploy everywhere" has been a developer's dream for decades. In the world of Delphi, this dream is realized through the FireMonkey (FMX)

framework. Unlike the Windows-centric VCL, FMX is a cross-platform powerhouse that allows you to target Android, iOS, Windows, macOS, and Linux from a single codebase.

Whether you are a seasoned Delphi veteran or a newcomer exploring modern cross-platform tools Studying Delphi FMX samples is essential, but blindly

, the best way to learn is through hands-on samples. Here is a curated guide to the most essential Delphi FMX samples and how they can accelerate your development. 1. The "Big 50": A Comprehensive Starter Kit If you are looking for a one-stop shop, the 50 Cross Platform Samples for Delphi

is the gold standard. These samples cover everything from basic UI to advanced hardware integration: UI Fundamentals: Samples like HelloWorldStyled DrawerMenu show you how to use TMultiView for modern navigation drawers. Data Handling: Learn how to bind data to visual controls using LiveBindings ListViewFromJson StringGridWithJsonData Hardware Access:

samples demonstrate how FMX accesses native device APIs directly—often with just a single component. Embarcadero 2. Mastering Modern Mobile UI

Mobile users expect fluid transitions and native-feeling controls. Several key samples focus specifically on these polished experiences: Even great samples can be outdated or misused

Samples frequently use $IFDEF ANDROID or $IFDEF IOS to handle permissions (camera, location, notifications).
Example:

$IFDEF ANDROID
  PermissionsService.RequestPermissions(['android.permission.CAMERA']);
$ENDIF

Why you need it: FMX is GPU-accelerated. You can draw thousands of shapes without flicker. Key sample: CanvasDrawingDemo – draws lines, bezier curves, and custom TPath objects. Lesson learned: Use BeginScene / EndScene when performing batch drawing. Never call Canvas.DrawLine inside a tight loop without batching.

FMX uses a flexible layout system based on TAlign, TLayout, TGridPanelLayout, and TScaleLayout. Key samples to explore:

| Sample Name | What It Teaches | |-------------|------------------| | CustomListBox | Creating dynamic, styled list items | | MasterDetailDetail | Multi-level navigation on mobile | | TabControlTransitions | Animated swiping between tabs | | AdaptiveLayout | Changing UI orientation and size at runtime |

Code highlight – Adding a search filter to a TListView (excerpt from official sample):

procedure TForm1.SearchEditChangeTracking(Sender: TObject);
begin
  TListView(SearchHandle).Items.Filter := 
    function (Item: TListViewItem): Boolean
    begin
      Result := ContainsText(Item.Text, SearchEdit.Text);
    end;
end;

A sample demonstrating the use of TListView to display a list of items.

program ListViewSample;
uses
  System.StartUpCopy,
  FMX.Forms,
  FMX.Controls,
  FMX.Types,
  FMX.ListView;
begin
  Application.Initialize;
  Application.CreateForm(TForm1, Form1);
  Form1.ListView1.Items.Add('Item 1');
  Form1.ListView1.Items.Add('Item 2');
  Form1.ListView1.Items.Add('Item 3');
  Application.Run;
end.