java - onTouch movement for ImageView? -
i relatively new android development.
but wondering whether possible move these images, can swap each other in grid. board game trying implement.
this looks like: http://i.imgur.com/2shaugd.png
the code array of images:
private integer[] mthumbids = { r.drawable.blank, r.drawable.blank, r.drawable.peg, r.drawable.peg, r.drawable.peg, r.drawable.blank, r.drawable.blank, r.drawable.blank, r.drawable.blank, r.drawable.peg, r.drawable.peg, r.drawable.peg, r.drawable.blank, r.drawable.blank, r.drawable.peg, r.drawable.peg, r.drawable.peg, r.drawable.peg, r.drawable.peg, r.drawable.peg, r.drawable.peg, r.drawable.peg, r.drawable.peg, r.drawable.peg, r.drawable.empty, r.drawable.peg, r.drawable.peg, r.drawable.peg, r.drawable.peg, r.drawable.peg, r.drawable.peg, r.drawable.peg, r.drawable.peg, r.drawable.peg, r.drawable.peg, r.drawable.blank, r.drawable.blank, r.drawable.peg, r.drawable.peg, r.drawable.peg, r.drawable.blank, r.drawable.blank, r.drawable.blank, r.drawable.blank, r.drawable.peg, r.drawable.peg, r.drawable.peg, r.drawable.blank, r.drawable.blank, }; xml:
<?xml version="1.0" encoding="utf-8"?> <linearlayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <gridview android:id="@+id/gridview" android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_margintop="40dp" android:columnwidth="50dp" android:numcolumns="7" android:verticalspacing="2dp" android:horizontalspacing="2dp" android:stretchmode="columnwidth" android:gravity="center" /> </linearlayout>
if don't need drag , drop should simple enough.
private view firstclicked = null; private onclicklistener swapimages = new onclicklistener() { @override public void onclick(view v) { if(firstclicked != null){ layoutparams p1 = firstclicked.getlayoutparams(); layoutparams p2 = v.getlayoutparams(); v.setlayoutparams(p1); firstclicked.setlayoutparams(p2); firstclicked = null; } else firstclicked = v; } }; this way swap positions, not images inside them.
edit: if interfere game logic, swap instead of layout parameters, swap images.
edit: code swaps drawables, need create own logic
package com.example.stackoverflow; import android.os.bundle; import android.view.view; import android.widget.adapterview; import android.widget.adapterview.onitemclicklistener; import android.widget.gridview; import android.widget.imageview; import android.widget.toast; import android.app.activity; import android.graphics.drawable.drawable; public class game extends activity { private imageview firstclicked = null; @override protected void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.game); gridview gridview = (gridview) findviewbyid(r.id.gridview); gridview.setadapter(new imageadapter(this)); gridview.setonitemclicklistener(new onitemclicklistener() { public void onitemclick(adapterview<?> parent, view v, int position, long id) { toast.maketext(game.this, "" + position, toast.length_short).show(); if(firstclicked != null){ imageview v2 = (imageview)v; drawable d2 = v2.getdrawable(); drawable d1 = firstclicked.getdrawable(); v2.setimagedrawable(d1); firstclicked.setimagedrawable(d2); firstclicked = null; } else { firstclicked = (imageview)v; } } }); } } hope helps , enjoy work.
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