Procedure
  1. Start Eclipse IDE.
  2. Create a new project.
  3. Create two Java files, one is AnimationUsingView.java and the second is MyView.java.
  4. Create an activity_animation_using_view.xml file for layout design.
  5. In MyView.java file add an image using BitmapFactory and then in the onDraw function use a canvas with drawLine,drawBitmap, and drawColor.
  6. In the AnimationUsingView.java file extends with Activity and declares a variable of MyView type then add animation_using_view in onCreateOptionsMenu.
The code is given below.
MyView.java
  1. package a.v;
  2. import android.content.Context;
  3. import android.graphics.Bitmap;
  4. import android.graphics.BitmapFactory;
  5. import android.graphics.Canvas;
  6. import android.graphics.Color;
  7. import android.graphics.Paint;
  8. import android.view.View;
  9. public class MyView extends View {
  10. Bitmap ball;
  11. float change = 0;
  12. public MyView(Context context) {
  13. super(context);
  14. ball = BitmapFactory.decodeResource(getResources(), R.drawable.ic_launcher);
  15. }
  16. @Override
  17. protected void onDraw(Canvas canvas) {
  18. super.onDraw(canvas);
  19. Paint pi = new Paint();
  20. pi.setColor(Color.YELLOW);
  21. pi.setStrokeWidth(45);
  22. canvas.drawColor(Color.RED);
  23. canvas.drawBitmap(ball, canvas.getWidth() / 2, change, null);
  24. canvas.drawLine((canvas.getWidth() / 2) + 20, 0, (canvas.getWidth() / 2) + 20, change, pi);
  25. if (change < canvas.getHeight()) {
  26. change += 5;
  27. } else {
  28. change = 0;
  29. }
  30. invalidate();
  31. }
  32. }
AnimationUsingView.java
  1. package a.v;
  2. import android.os.Bundle;
  3. import android.app.Activity;
  4. import android.view.Menu;
  5. public class AnimationUsingView extends Activity {
  6. MyView a1;
  7. @Override
  8. protected void onCreate(Bundle savedInstanceState) {
  9. super.onCreate(savedInstanceState);
  10. a1 = new MyView(getApplicationContext());
  11. setContentView(a1);
  12. }
  13. @Override
  14. public boolean onCreateOptionsMenu(Menu menu) {
  15. getMenuInflater().inflate(R.menu.animation_using_view, menu);
  16. return true;
  17. }
  18. }
activity_animation_using_view.xml
  1. <RelativeLayout
  2. xmlns:android="http://schemas.android.com/apk/res/android"
  3. xmlns:tools="http://schemas.android.com/tools"
  5. android:layout_width="match_parent"
  6. android:layout_height="match_parent"
  7. android:paddingBottom="@dimen/activity_vertical_margin"
  8. android:paddingLeft="@dimen/activity_horizontal_margin"
  9. android:paddingRight="@dimen/activity_horizontal_margin"
  10. android:paddingTop="@dimen/activity_vertical_margin"
  11. tools:context=".AnimationUsingView" >
  13. </RelativeLayout>
Output
Output
Animation using View in Android