Hi, I like to do this simple graphics oriented program. But i can't able to do this. B'coz i can't able to extend GraphicsActivity Class. I don't know why?
Any body know about these?.... my code is given below.... /* * Copyright (C) 2007 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import android.app.Activity; import android.content.Context; import android.graphics.*; import android.os.Bundle; import android.view.KeyEvent; import android.view.*; import java.io.InputStream; import java.io.ByteArrayOutputStream; public class AlphaBitmap extends GraphicsActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(new SampleView(this)); } private static class SampleView extends View { private Bitmap mBitmap; private Bitmap mBitmap2; private Bitmap mBitmap3; private Shader mShader; private static void drawIntoBitmap(Bitmap bm) { float x = bm.getWidth(); float y = bm.getHeight(); Canvas c = new Canvas(bm); Paint p = new Paint(); p.setAntiAlias(true); p.setAlpha(0x80); c.drawCircle(x/2, y/2, x/2, p); p.setAlpha(0x30); p.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC)); p.setTextSize(60); p.setTextAlign(Paint.Align.CENTER); Paint.FontMetrics fm = p.getFontMetrics(); c.drawText("Alpha", x/2, (y-fm.ascent)/2, p); } public SampleView(Context context) { super(context); setFocusable(true); InputStream is = context.getResources().openRawResource(R.drawable.app_sample_code); mBitmap = BitmapFactory.decodeStream(is); mBitmap2 = mBitmap.extractAlpha(); mBitmap3 = Bitmap.createBitmap(200, 200, Bitmap.Config.ALPHA_8); drawIntoBitmap(mBitmap3); mShader = new LinearGradient(0, 0, 100, 70, new int[] { Color.RED, Color.GREEN, Color.BLUE }, null, Shader.TileMode.MIRROR); } @Override protected void onDraw(Canvas canvas) { canvas.drawColor(Color.WHITE); Paint p = new Paint(); float y = 10; p.setColor(Color.RED); canvas.drawBitmap(mBitmap, 10, y, p); y += mBitmap.getHeight() + 10; canvas.drawBitmap(mBitmap2, 10, y, p); y += mBitmap2.getHeight() + 10; p.setShader(mShader); canvas.drawBitmap(mBitmap3, 10, y, p); } } } -- Thanks & Regards Sasikumar.S -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
