Android拆分Bitmap完整示例
package cc.testsplitimage; import java.util.ArrayList; import android.app.Activity; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.ImageView; /** * Demo描述: * 拆分图片 * * 参考资料: * http://blog.csdn.net/arui319/article/details/7470193 * Thank you very much */ public class MainActivity extends Activity { private Button mSplitButton; private Bitmap mRawBitmap; private ImageView mImageView; private int row; private int column; private ArrayList<Bitmap> mPartImagesArrayLis; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); init(); } private void init(){ mSplitButton=(Button) findViewById(R.id.splitButton); mSplitButton.setOnClickListener(new ClickListenerImpl()); mImageView=(ImageView) findViewById(R.id.imageView); mRawBitmap=BitmapFactory.decodeResource(getResources(), R.drawable.e); row=3; column=3; } private class ClickListenerImpl implements OnClickListener{ @Override public void onClick(View view) { switch (view.getId()) { case R.id.splitButton: mPartImagesArrayLis=splitImage(mRawBitmap, row, column); mImageView.setImageBitmap(null); break; default: break; } } } /** * @param rawBitmap 原来的Bitmap * @param row 切成几行 * @param column 切成几列 * @return */ private ArrayList<Bitmap> splitImage(Bitmap rawBitmap,int row,int column){ ArrayList<Bitmap> partImagesArrayList=new ArrayList<Bitmap>(row*column); int rawBitmapWidth=rawBitmap.getWidth(); int rawBitmapHeight=rawBitmap.getHeight(); System.out.println("rawBitmapWidth="+rawBitmapWidth+",rawBitmapHeight="+rawBitmapHeight); int perPartWidth=rawBitmapWidth/column; int perPartHeight=rawBitmapHeight/row; System.out.println("perPartWidth="+perPartWidth+",perPartHeight="+perPartHeight); Bitmap perBitmap=null; for (int i = 0; i < row; i++) { for (int j = 0; j < column; j++) { int x=j*perPartWidth; int y=i*perPartHeight; System.out.println("i="+i+",j="+j+",x="+x+",y="+y); perBitmap=Bitmap.createBitmap(rawBitmap, x, y, perPartWidth, perPartHeight); partImagesArrayList.add(perBitmap); } } System.out.println("size="+partImagesArrayList.size()); return partImagesArrayList; } }
<RelativeLayout 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" > <Button android:id="@+id/splitButton" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerHorizontal="true" android:layout_marginTop="10dip" android:text="拆分图片" /> <ImageView android:id="@+id/imageView" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerInParent="true" android:src="@drawable/e" /> </RelativeLayout>
补充:移动开发 , Android ,