Android 2048 game implementation

Android 2048 mini-game complete implementation: GridLayout layout (Android 4.0 and above).

Package Com.example.y2048;import Android.annotation.suppresslint;import Android.app.activity;import Android.os.bundle;import Android.util.log;import Android.view.motionevent;import Android.view.View;import Android.widget.button;import Android.widget.gridlayout;import Android.widget.textview;import Android.widget.Toast ; Import Com.example.y2048.map.direction;import Com.example.y2048.map.maps;public class Mainactivity extends Activity {Private String tag = "Gridlayoutactivity"; GridLayout gridlayout;float StartX = 0, Starty = 0, endx, EndY; Maps maps = new maps ();p rivate TextView score;private TextView best; @SuppressLint ("Newapi") void init () {//Get View object Gridla yout = (GridLayout) Findviewbyid (R.id.root), for (int i = 0, i < 4; i++) {for (int j = 0; J < 4; J + +) {Button bn = NE W button (this), bn.setclickable (false), Bn.settext (""),///Set the size of the button bn.settextsize (120); bn.setwidth Bn.setheight (120);//Specifies the line where the component is located gridlayout.spec rowspec = Gridlayout.spec (i + 2);//Specifies the column in which the component is located gridlayout.spec columnSpec = Gridlayout.spec (j); String msg = "Rowspec:" + (i + 2) + "-Columnspec:" + (j); LOG.D (tag, msg); Gridlayout.layoutparams params = new Gridlayout.layoutparams (Rowspec, columnspec);//Specifies that the component fills the container//params.setgravity ( Gravity.fill); Gridlayout.addview (BN, params); Maps.addbutton (I, J, Bn);}} Score = (TextView) Findviewbyid (R.id.score); Score.settext ("0"); best = (TextView) Findviewbyid (r.id.best); Maps.setscore (score); Maps.setbest (best); Maps.init ();} @Overrideprotected void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate); Setcontentview ( R.layout.activity_main); init ();} @Overridepublic boolean dispatchtouchevent (Motionevent event) {//System.out.println ("touch"); int action =  Event.getaction (); if (action = = motionevent.action_down) {StartX = Event.getx (); starty = Event.gety ();} else if (action = = MOTIONEVENT.ACTION_UP) {endx = Event.getx (); EndY = Event.gety (); int direction = Getslidedirection (StartX, Starty, EndX, E NdY);//System.out.println (startx+ "," +starty+ "|" +endx+ "," +endy+"+direction");//Toast.maketext (This, direction+ "", Toast.length_long). Show (); Boolean gameover = maps. Slide (direction); if (Gameover) {if (Maps.getscore () >maps.getbestscore ()) {Toast.maketext (this, "Congratulations over the best record!!! ", Toast.length_short). Show (); Maps.setbestscore (Maps.getscore ()); Best.settext (Maps.getscore () +" ");} Else{toast.maketext (This, "Gameover", Toast.length_short). Show ();}} Return Super.dispatchtouchevent (event);} Return angle private double getslideangle (float dx, float dy) {return math.atan2 (dy, dx) * 180/MATH.PI;} Return direction based on start and end 1: Up, 2: down, 3: Left, 4: Right, 0: not sliding private int getslidedirection (float StartX, float starty, float endx,float EndY) {Float dy = starty-endy;float dx = Endx-startx;int result = direction.none;//If the sliding distance is too short if (Math.Abs (dx) < 2 &&am P Math.Abs (DY) < 2) {return result;} Double angle = getslideangle (dx, dy), if (angle >= -45 && Angle <) {return direction.right;} else if (Angl e >= && Angle < 135) {return direction.up;} else if (angle>= -135 && Angle < -45) {return direction.down;} else if (angle >= 135 && Angle <= 180) | | (Angle >= -180 && Angle <-135)) {return direction.left;} return result;} public void Reset (view view) {Maps.init ();}}

Package Com.example.y2048.map;public interface Direction {//1: Up, 2: down, 3: Left, 4: Right, 0: static final int left=3;static not sliding Final int right=4;static final int up=1;static final int down=2;static final int none=0;}

Package Com.example.y2048.map;import Java.util.random;import Android.content.context;import Android.content.sharedpreferences;import Android.content.sharedpreferences.editor;import Android.view.View; Import Android.widget.button;import Android.widget.textview;public class Maps {private TextView score;private TextView Best;private button[][] maps = new Button[4][4];p ublic void AddButton (int i, int J, Button btn) {maps[i][j] = btn;} private void Swaptext (button btn1, button btn2) {charsequence text = Btn1.gettext (); Btn1.settext (Btn2.gettext ()); Btn2.settext (text);} void Up_remove_blank () {int I, J, k;for (j = 0; J < 4; J + +) {for (i = 1; i < 4; i++) {k = I;while (k-1 >= 0&amp ;& Maps[k-1][j].gettext (). toString (). Length () = = 0) {///The one above is empty swaptext (Maps[k][j], maps[k-1][j]); k--;}}} void Down_remove_blank () {int I, J, k;for (j = 0; J < 4; J + +) {for (i = 2; I >= 0; i--) {k = I;while (k + 1 <= 3& amp;& maps[k + 1][j].gettext (). toString (). Length () = = 0) {//The one above is an empty swapText (Maps[k][j], maps[k + 1][j]); k++;}}} void Left_remove_blank () {int I, J, k;for (i = 0; i < 4; i++) {for (j = 1; j < 4; J + +) {k = J;while (k-1 >= 0&A mp;& Maps[i][k-1].gettext (). toString (). Length () = = 0) {///The one above is empty swaptext (Maps[i][k], maps[i][k-1]); k--;}}} void Right_remove_blank () {int I, J, k;for (i = 0; i < 4; i++) {for (j = 2; J >= 0; j--) {k = J;while (k + 1 <= 3 && maps[i][k + 1].gettext (). toString (). Length () = = 0) {//The one above is empty swaptext (Maps[i][k], maps[i][k + 1]); k++;}}} void Left () {int I, j;for (i = 0; i < 4; i++) {for (j = 0; J < 3; J + +) {String S1 = Maps[i][j].gettext (). toString (); String s2 = maps[i][j + 1].gettext (). toString (); if (s1.equals (S2) &&!s1.equals ("")) {//Maps[i][j]+=maps[i][j+1 ];integer sum = integer.valueof (Maps[i][j].gettext (). toString ()), Sum + = integer.valueof (Maps[i][j + 1].gettext (). ToString ()); int total = Integer.valueof (Score.gettext (). ToString ()), Score.settext (string.valueof (sum + total); maps I [J].settExt (sum.tostring ()); Maps[i][j + 1].settext (""); Left_remove_blank ();}}} void Right () {int I, j;for (i = 0; i < 4; i++) {for (j = 3; J >= 1; j--) {String S1 = Maps[i][j].gettext (). ToString ( ); String s2 = Maps[i][j-1].gettext (). toString (); if (s1.equals (S2) &&!s1.equals ("")) {//Maps[i][j]+=maps[i][j-1 ];//Maps[i][j-1]=0;integer sum = integer.valueof (Maps[i][j].gettext (). toString ()); sum + = integer.valueof (Maps[i][j- 1].gettext (). ToString ()); int total = Integer.valueof (Score.gettext (). ToString ()); Score.settext (string.valueof (sum + total); Maps[i][j].settext (sum.tostring ()); Maps[i][j-1].settext (""); Right_remove_blank ();}}} void up () {int I, j;for (j = 0; J < 4; J + +) {//each column for (i = 0; i < 3; i++) {String S1 = Maps[i][j].gettext (). Tostrin g (); String s2 = maps[i + 1][j].gettext (). toString (); if (s1.equals (S2) &&!s1.equals ("")) {//maps[i][j]=maps[i][j]+ maps[i+1][j];//Maps[i+1][j]=0;integer sum = integer.valueof (Maps[i][j].gettext (). toString ()); sum + = Integer.vaLueof (Maps[i + 1][j].gettext (). ToString ()); int total = Integer.valueof (Score.gettext (). ToString ()); Score.settext ( String.valueof (sum + total); Maps[i][j].settext (sum.tostring ()); Maps[i + 1][j].settext ("");//Remove Space Up_remove_blank () ;}}}} void down () {int I, j;for (j = 0; J < 4; J + +) {//each column for (i = 3; I >= 1; i--) {String S1 = Maps[i][j].gettext (). toSt Ring (); String s2 = Maps[i-1][j].gettext (). toString (); if (s1.equals (S2) &&!s1.equals ("")) {//maps[i][j]=maps[i][j]+ maps[i-1][j];//Maps[i-1][j]=0;integer sum = integer.valueof (Maps[i][j].gettext (). toString ()); sum + = integer.valueof (Maps[i-1][j].gettext (). ToString ()); int total = Integer.valueof (Score.gettext (). ToString ()); Score.settext ( String.valueof (sum + total); Maps[i][j].settext (sum.tostring ()); Maps[i-1][j].settext ("");//Remove Space Down_remove_blank ();}}}} private void Addnumber () {Random random = new random (), int x = Random.nextint (4), int y = random.nextint (4); int number = RA Ndom.nextint (20);//probability of appearing 2 probability of 95% 4 5%if (number==0) nUmber=4;else Number=2;while (Maps[x][y].gettext (). toString (). Length ()! = 0) {x = Random.nextint (4); y = Random.nextint (4 );} Maps[x][y].settext (number + "");} public void Init () {for (int i = 0; i < 4; i++) {for (int j = 0; J < 4; J + +) {Maps[i][j].settext ("");}} Score.settext ("0"); Addnumber (); Addnumber ();} Private Boolean Isfull () {for (int i = 0; i < 4; i++) {for (int j = 0; J < 4; J + +) {if (Maps[i][j].gettext (). Tostrin g (). Length () = = 0) {return false;}}} return true;} public boolean Slide (int direction) {if (direction = = Direction.left) {Left_remove_blank (); left (); if (Isfull ()) return True;else {addnumber ();}} else if (direction = = Direction.right) {Right_remove_blank (); right (); if (Isfull ()) return True;else {Addnumber ();}} else if (direction = = Direction.up) {Up_remove_blank (); up (), if (Isfull ()) return True;else {Addnumber ();}} else if (direction = = Direction.down) {Down_remove_blank ();d own (); if (Isfull ()) return True;else {Addnumber ();}} return false;} public void SetScore (TextView sCore) {This.score = score;} public void Setbest (TextView best) {this.best = Best;best.settext (Getbestscore () + "");} public int Getscore () {return integer.valueof (Score.gettext (). toString ());} public int Getbestscore () {Sharedpreferences sp = Best.getcontext (). Getsharedpreferences ("BestScore.txt", context.mode_private); int Bestscore=sp.getint ("Bestscore", 0); return bestscore;} public void Setbestscore (int score) {Sharedpreferences sp = Best.getcontext (). Getsharedpreferences ("BestScore.txt", Context.mode_private); Editor edit = Sp.edit (); Edit.putint ("Bestscore", score); Edit.commit ();}}

<gridlayout xmlns:android= "http://schemas.android.com/apk/res/android" xmlns:tools= "http// Schemas.android.com/tools "android:id=" @+id/root "android:layout_width=" match_parent "android:layout_height=" MATC H_parent "android:columncount=" 4 "android:rowcount=" 6 "tools:ignore=" Newapi "> <textview android: Layout_width= "Wrap_content" android:layout_height= "50DP" android:layout_marginleft= "4DP" Android:layo ut_marginright= "4DP" android:gravity= "center" android:text= "score:"/> <textview android:id= "@+id/score" android:layout_width= "wrap_content" android:layout_height= "50DP" Android:layout_marginle ft= "4DP" android:layout_marginright= "4DP" android:gravity= "center" android:text= "score:"/> &lt ;        TextView android:layout_width= "wrap_content" android:layout_height= "50DP" android:gravity= "center" android:text= "best:"/> <textview       Android:id= "@+id/best" android:layout_width= "wrap_content" android:layout_height= "50DP" Androi        d:gravity= "center"/> <button android:layout_width= "wrap_content" android:layout_height= "40DP" Android:layout_columnspan= "4" android:onclick= "reset" android:text= "reset"/></gridlayout>

Android 2048 game implementation