本方法為：

直接獲取到一個view，然後通過View的Cache來獲取一個bitmap物件，然後將bitmap物件寫到影象檔案。

主activity：

package com.zhf.ScreenshotDemo;  
      
    import Android.app.Activity;  
    import android.graphics.Bitmap;  
    import android.graphics.drawable.BitmapDrawable;  
    import android.os.Bundle;  
    import android.view.Display;  
    import android.view.View;  
    import android.view.View.OnClickListener;  
    import android.widget.Button;  
    import android.widget.ImageView;  
      
    public class ScreenshotDemoActivity extends Activity {  
        private Button shotButton;  
        private ImageView imageView;  

        @Override  
        public void onCreate(Bundle savedInstanceState) {  
            super.onCreate(savedInstanceState);  
            setContentView(R.layout.main);  
            shotButton=(Button)findViewById(R.id.shotButton);  
            imageView=(ImageView)findViewById(R.id.imageView);  
            shotButton.setOnClickListener(new OnClickListener() {  
                @Override  
                public void onClick(View v) {  
                    //Bitmap-->Drawable   
                    BitmapDrawable bd=new BitmapDrawable(shot());  
                    imageView.setBackgroundDrawable(bd);  
    //              imageView.setImageBitmap(shot());   
                }  
            });  
        }  
      
        /**
         * 截圖方法
         * @return
         */  
        private Bitmap shot() {  
            View view = getWindow().getDecorView();  
            Display display = this.getWindowManager().getDefaultDisplay();  
            view.layout(0, 0, display.getWidth(), display.getHeight());  
            view.setDrawingCacheEnabled(true);//允許當前視窗儲存快取資訊，這樣getDrawingCache()方法才會返回一個Bitmap   
            Bitmap bmp = Bitmap.createBitmap(view.getDrawingCache());  
            return bmp;  
        }  
    }  
佈局：

<ImageView android:id="@+id/imageView"  
        android:layout_width="fill_parent"  
        android:layout_height="350dip"  
        />  
 
    <Button android:id="@+id/shotButton"  
        android:layout_width="fill_parent"  
        android:layout_height="wrap_content"  
        android:text="shot"/>