Spostare immagini

[tommy87]

Ciao ragazzi, volevo spostare un immagine col drug & drop , ho implementato questo metodino ( onTouch ) però se avete dei consigli su come fare per migliorarlo o se ci sono metodi migliori e piu' semplici sono ben accetti, io intanto lo condivido con voi :



<br /> import android.app.Activity;<br /> import android.os.Bundle;<br /> import android.view.M<span class="forTooltip">ot</span>ionEvent;<br /> import android.view.View;<br /> import android.view.View.OnTouchListener;<br /> import android.view.ViewGroup.MarginLayoutParams;<br /> import android.widget.ImageView;<br /> import android.widget.RelativeLayout.LayoutParams;<br /> <br /> public class Main exten<span class="forTooltip">ds</span> Activity implements OnTouchListener{<br /> /** Called when the activity is first created. */<br /> <br /> private ImageView img; <br /> <br /> @Override<br /> public void onCreate(Bundle savedInstanceState) {<br /> super.onCreate(savedInstanceState); <br /> setContentView(R.layout.main); <br /> img=(ImageView)findViewById(R.id.tubo1); <br /> <br /> img.setClickable(true);<br /> img.setOnTouchListener((OnTouchListener)this);<br /> <br /> <br /> }<br /> <br /> @Override<br /> public boolean onTouch(View v, M<span class="forTooltip">ot</span>ionEvent event) {<br /> // TODO Auto-generated method stub<br /> <br /> int action = event.getAction();<br /> int mCurX = (int)event.getX();<br /> int mCurY = (int)event.getY();<br /> <br /> if ( action == MotionEvent.ACTION_MOVE ) {<br /> <br /> MarginLayoutParams b = (MarginLayoutParams)img.getLayoutParams();<br /> MarginLayoutParams mar= new MarginLayoutParams(img.getLayoutParams().width,img.getLayoutParams().height);<br /> mar.bottomMargin = b.bottomMargin+mCurY;<br /> mar.to<span class="forTooltip">pM</span>argin = b.to<span class="forTooltip">pM</span>argin+mCurY;<br /> mar.leftMargin = b.leftMargin+mCurX;<br /> mar.rightMargin = b.rightMargin+mCurX;<br /> img.setLayoutParams(new LayoutParams(mar)); <br /> <br /> }<br /> if ( action == MotionEvent.ACTION_UP ) {<br /> //this.setText("not moving");<br /> <br /> }<br /> return true;<br /> }<br /> }<br />

 

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import android.app.Activity;

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import android.os.Bundle;

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import android.view.MotionEvent;

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import android.view.View;

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import android.view.View.OnTouchListener;

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import android.view.ViewGroup.MarginLayoutParams;

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import android.widget.ImageView;

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import android.widget.RelativeLayout.LayoutParams;

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​

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public class Main extends Activity implements OnTouchListener{

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    /** Called when the activity is first created. */

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     private ImageView img;  

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    @Override

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    public void onCreate(Bundle savedInstanceState) {

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        super.onCreate(savedInstanceState);  

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        setContentView(R.layout.main);          

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        img=(ImageView)findViewById(R.id.tubo1);  

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        img.setClickable(true);

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        img.setOnTouchListener((OnTouchListener)this);

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    }

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​

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    @Override

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    public boolean onTouch(View v, MotionEvent event) {

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        // TODO Auto-generated method stub

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          int action = event.getAction();

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          int mCurX = (int)event.getX();

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          int mCurY = (int)event.getY();

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​

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          if ( action == MotionEvent.ACTION_MOVE ) {

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​

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              MarginLayoutParams b = (MarginLayoutParams)img.getLayoutParams();

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              MarginLayoutParams mar=  new MarginLayoutParams(img.getLayoutParams().width,img.getLayoutParams().height);

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              mar.bottomMargin = b.bottomMargin+mCurY;

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              mar.topMargin =  b.topMargin+mCurY;

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              mar.leftMargin = b.leftMargin+mCurX;

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              mar.rightMargin = b.rightMargin+mCurX;

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              img.setLayoutParams(new LayoutParams(mar));   

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          }

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          if ( action == MotionEvent.ACTION_UP ) {

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            //this.setText("not moving");

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​

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          }

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          return true;

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        }

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}

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