LIBGDX study record 23--picture Move selection

Analog mobile selection of pictures, using the camera implementation.

1  Packagecom.fxb.newtest;2 3 ImportCom.badlogic.gdx.ApplicationAdapter;4 ImportCom.badlogic.gdx.Gdx;5 ImportCom.badlogic.gdx.graphics.Color;6 Importcom.badlogic.gdx.graphics.GL10;7 Importcom.badlogic.gdx.graphics.Texture;8 ImportCom.badlogic.gdx.graphics.glutils.ShapeRenderer;9 ImportCom.badlogic.gdx.graphics.glutils.ShapeRenderer.ShapeType;Ten ImportCom.badlogic.gdx.input.GestureDetector; One ImportCom.badlogic.gdx.input.GestureDetector.GestureAdapter; A Importcom.badlogic.gdx.scenes.scene2d.Action; - ImportCom.badlogic.gdx.scenes.scene2d.Stage; - Importcom.badlogic.gdx.scenes.scene2d.actions.Actions; the ImportCom.badlogic.gdx.scenes.scene2d.ui.Image; -  -  Public classLib025_picchangeextendsapplicationadapter{ -      +Gestureadapter Gestureadapter =NewGestureadapter () { - @Override +          Public BooleanFlingfloatVelocityx,floatVelocityy,intbutton) { A             //TODO auto-generated Method Stub at /*if (Velocityx > 0) { - System.out.println ("Fling Right"); - Stage.getcamera (). Translate (-stage.getwidth (), 0, 0); -             } - else{ - System.out.println ("Fling left"); in Stage.getcamera (). Translate (Stage.getwidth (), 0, 0); -             }*/ to              +             return Super. Fling (Velocityx, Velocityy, button); -         } the  *          $         Panax Notoginseng @Override -          Public BooleanPanfloatXfloatYfloatDeltaX,floatDeltaY) { the             //TODO auto-generated Method Stub +SYSTEM.OUT.PRINTLN ("Pan" ); A             if(index>0 && deltax>0 | | index ){ theStage.getcamera (). Translate (-deltax, 0, 0 ); +Add = deltax > 0? -1:1;  -             }             $              $             return Super. Pan (x, Y, DeltaX, deltay); -         } -  the  - Wuyi @Override the          Public BooleanPanstop (floatXfloatYintPointerintbutton) { -             //TODO auto-generated Method Stub WuSYSTEM.OUT.PRINTLN ("Pan Stop" ); -             if(index>0 && add==-1 | | index ){ AboutIndex + =add; $Stage.getcamera (). Position.set (Index*500+stage.getwidth ()/2, Stage.getheight ()/2, 0 );  -             } -             return Super. Panstop (x, y, pointer, button); -         }     A          +          the          -          $     }; theGesturedetector detector =NewGesturedetector (gestureadapter); the      the Stage stage; the Image img1, Img2, IMG3, IMG4; - image[] IMGs; in     intindex; the     intAdd = 0; the shaperenderer rend; About      the @Override the      Public voidCreate () { the         //TODO auto-generated Method Stub +         Super. Create (); - Gdx.input.setInputProcessor (detector); the         BayiIMG1 =NewImage (NewTexture (Gdx.files.internal ("Data/pal4_0.jpg" ) ) ); theImg2 =NewImage (NewTexture (Gdx.files.internal ("Data/pal4_1.jpg" ) ) ); theIMG3 =NewImage (NewTexture (Gdx.files.internal ("Data/pal4_2.jpg" ) ) ); -IMG4 =NewImage (NewTexture (Gdx.files.internal ("Data/pal4_3.jpg" ) ) ); -          thestage =NewStage (); the Stage.addactor (IMG1); the Stage.addactor (IMG2); the Stage.addactor (IMG3); - Stage.addactor (IMG4); the          theIMGs =Newimage[]{img1, Img2, IMG3, img4}; the         94          for(inti=0; ii) { theImgs[i].setsize (400, 240 ); theImgs[i].setposition (i*500 + stage.getwidth ()/2-imgs[i].getwidth ()/2, Stage.getheight ()/2-imgs[i].getheight ()/2 ); the         }98              About         //imgs[1].setvisible (false); -         //imgs[2].setvisible (false);101index = 0;102rend =Newshaperenderer ();103     }104  the @Override106      Public voidrender () {107         //TODO auto-generated Method Stub108         Super. Render ();109Gdx.gl.glClearColor (1, 1, 1, 1 ); the Gdx.gl.glClear (gl10.gl_color_buffer_bit);111 stage.act (); the Stage.draw ();113          the Rend.begin (shapetype.filled); the Rend.setcolor (color.light_gray); theRend.rect (0, 0, 100, 480 );117Rend.rect (700, 0, 100, 480 );118Rend.rect (100, 0, 700, 60 );119Rend.rect (100, 420, 700, 60 ); - rend.end ();121         122     }123 124 @Override the      Public voidDispose () {126         //TODO auto-generated Method Stub127 rend.dispose (); - stage.dispose ();129         Super. Dispose (); the     }131  the}

Operation Result: