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-----------------------帖子正文---------------------
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/layout" android:orientation="vertical" android:layout_width="wrap_content" android:layout_height="wrap_content" > </LinearLayout> package com.test.demo; import android.app.Activity; import android.graphics.Bitmap; import android.graphics.Bitmap.Config; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Paint; import android.graphics.PorterDuff.Mode; import android.graphics.PorterDuffXfermode; import android.graphics.Rect; import android.graphics.RectF; import android.graphics.drawable.BitmapDrawable; import android.graphics.drawable.Drawable; import android.os.Bundle; import android.widget.ImageView; import android.widget.LinearLayout; public class MyActivity extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); // Drawable drawable = getResources().getDrawable(R.drawable.bg); // BitmapDrawable bitmapDrawable = (BitmapDrawable) drawable; // Bitmap bitmap = bitmapDrawable.getBitmap(); LinearLayout layout = (LinearLayout) findViewById(R.id.layout); Drawable drawable = getResources().getDrawable(R.drawable.bg); BitmapDrawable bitmapDrawable = (BitmapDrawable) drawable; Bitmap bitmap = bitmapDrawable.getBitmap(); BitmapDrawable bbb = new BitmapDrawable(toRoundCorner(bitmap, 30)); layout.setBackgroundDrawable(bbb); //ImageView imageView = (ImageView) findViewById(R.id.imgShow); //imageView.setImageBitmap(MyActivity.getRoundedCornerBitmap(bitmap)); //imageView.setImageBitmap(MyActivity.toRoundCorner(bitmap, 20)); } public static Bitmap toRoundCorner(Bitmap bitmap, int pixels) { Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Config.ARGB_8888); Canvas canvas = new Canvas(output); final int color = 0xff424242; final Paint paint = new Paint(); final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight()); final RectF rectF = new RectF(rect); final float roundPx = pixels; paint.setAntiAlias(true); canvas.drawARGB(0, 0, 0, 0); paint.setColor(color); canvas.drawRoundRect(rectF, roundPx, roundPx, paint); paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN)); canvas.drawBitmap(bitmap, rect, rect, paint); return output; } }