取得当前屏幕的截图

取得当前屏幕的截图主要使用了Bitmap 类里的方法，首相取得一个bitmap 然后用取得的bitmap 去绘制一张图片然后进行保存。

废话不多说直接上代码：

1.import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import android.app.Activity; import android.graphics.Bitmap; import android.graphics.Rect; import android.os.Environment; import android.util.Log; import android.view.View; public class ShotScreen { private static final String TAG="shotscreen"; @SuppressWarnings("unused") private static Bitmap takeScreenShot(Activity activity){ View view =activity.getWindow().getDecorView(); view.setDrawingCacheEnabled(true); view.buildDrawingCache(); Bitmap bitmap = view.getDrawingCache(); Rect rect = new Rect(); activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(rect); int statusBarHeight = rect.top; System.out.println(statusBarHeight); int width =activity.getWindowManager().getDefaultDisplay().getWidth(); int height =activity.getWindowManager().getDefaultDisplay().getHeight(); Bitmap bitmap2 = Bitmap.createBitmap(bitmap,0,statusBarHeight, width, height - statusBarHeight); view.destroyDrawingCache(); return bitmap2; } @SuppressWarnings("unused") private static void savePic(Bitmap bitmap,String filename){ FileOutputStream fileOutputStream = null; try { fileOutputStream = new FileOutputStream(filename); if (fileOutputStream != null) { bitmap.compress(Bitmap.CompressFormat.PNG, 90, fileOutputStream); fileOutputStream.flush(); fileOutputStream.close(); } } catch (FileNotFoundException e) { Log.d(TAG, "Exception:FileNotFoundException"); e.printStackTrace(); } catch (IOException e) { Log.d(TAG, "IOException:IOException"); e.printStackTrace(); } } /** * * @param a */ public static void shoot(Activity a){ if (android.os.Environment.MEDIA_MOUNTED != "mounted") { ShotScreen.savePic(ShotScreen.takeScreenShot(a), "/sdcard/抽样.png"); }else{ ShotScreen.savePic(ShotScreen.takeScreenShot(a), "/data/data/"+a.getPackageName()+"/抽样.png"); } }

2.在main.xml 中加入一个button

<Button android:id="@+id/button" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="adfasdfasdfasdfas" />

测试一下。