Android实现的截屏小程序示例

package com.test;import android.app.Activity;import android.graphics.Bitmap;import android.graphics.Canvas;import android.graphics.Bitmap.Config;import android.os.Bundle;import android.view.View;import android.widget.Button;import android.widget.ImageView;import android.widget.ImageView.ScaleType;public class ScreenPrinter extends Activity { /** Called when the activity is first created. */ boolean customTitleSupported; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.screen_printer); Button btn = (Button)findViewById(R.id.btn); btn.setOnClickListener(new Button.OnClickListener(){  public void onClick(View arg0) {  ImageView im = (ImageView)findViewById(R.id.img);  Bitmap bmp = Bitmap.createBitmap(320, 480, Config.ARGB_8888);  View cv = getWindow().getDecorView();  cv.draw(new Canvas(bmp));  im.setScaleType(ScaleType.FIT_XY);  im.setImageBitmap(bmp);  }}); }}

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" android:background="@drawable/border"> <Button android:layout_width="fill_parent" android:layout_height="wrap_content" android:id="@+id/btn" android:text="截屏"/> <LinearLayout android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_weight="1" android:padding="10dip" android:background="#ffffdd"> <ImageView android:id="@+id/img" android:layout_width="fill_parent" android:layout_height="fill_parent"/> </LinearLayout></LinearLayout>