Tuesday, 8 January 2013

Drag,Move ImageView in Android


Hello Friends Here is Code for image drag and move

move image view in android anywhere in device screen for that here some code for that move image view using single touch,
drag image view in android

java Code 

importandroid.app.Activity;

import android.os.Bundle;
importandroid.view.MotionEvent;
import android.view.View;
importandroid.widget.ImageView;
import android.widget.LinearLayout.LayoutParams;

public class MainActivity extends Activity {

       int windowwidth;
       int windowheight;

       private LayoutParams layoutParams;

       @Override
       public void onCreate(Bundle savedInstanceState) {
              super.onCreate(savedInstanceState);
              setContentView(R.layout.activity_main);

              windowwidth = getWindowManager().getDefaultDisplay().getWidth();
              windowheight = getWindowManager().getDefaultDisplay().getHeight();
              final ImageView img = (ImageView) findViewById(R.id.imageView1);

              img.setOnTouchListener(newView.OnTouchListener() {

                     @Override
                     public boolean onTouch(View v, MotionEvent event) {
                           LayoutParams layoutParams = (LayoutParams) img
                                         .getLayoutParams();
                           switch (event.getAction()) {
                           case MotionEvent.ACTION_DOWN:
                                  break;
                           case MotionEvent.ACTION_MOVE:
                                  int x_cord = (int) event.getRawX();
                                  int y_cord = (int) event.getRawY();

                                  if (x_cord > windowwidth) {
                                         x_cord = windowwidth;
                                  }
                                  if (y_cord > windowheight) {
                                         y_cord = windowheight;
                                  }

                                  layoutParams.leftMargin = x_cord - 25;
                                  layoutParams.topMargin = y_cord - 75;

                                  img.setLayoutParams(layoutParams);
                                  break;
                           default:
                                  break;
                           }
                           return true;
                     }
              });
       }
}



========================================================
layout.xml



<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
     >

    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/ball" />

    <ImageView
        android:id="@+id/imageView2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/space_icon" />

</LinearLayout>



thanks Enjoy...!

6 comments:

  1. This comment has been removed by a blog administrator.

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  2. layoutParams.leftMargin = x_cord - 25;
    layoutParams.topMargin



    leftMargin and topmargin are not working in my codes..

    ReplyDelete
  3. leftMargin and topmargin are not recognized in my code

    ReplyDelete
  4. For Left Margin and Top Margin use this Import:
    import android.widget.LinearLayout.LayoutParams;
    OR
    import android.widget.RelativeLayout.LayoutParams;
    OR
    Parent layout of your choice

    ReplyDelete