ScreenShotUtils.java

package com.wangbb.naruto.utils;

import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Rect;
import android.util.Log;
import android.view.View;
import android.widget.ListView;
import android.widget.ScrollView;

import com.wangbb.naruto.R;

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

public class ScreenShotUtils {
	// ��ȡָ��Activity�Ľ��������浽png�ļ�
	public static Bitmap takeScreenShot(Activity activity) {
		// View������Ҫ��ͼ��View
		View view = activity.getWindow().getDecorView();
		view.setDrawingCacheEnabled(true);
		view.buildDrawingCache();
		Bitmap b1 = view.getDrawingCache();
		// ��ȡ״̬���߶�
		Rect frame = new Rect();
		activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(frame);
		int statusBarHeight = frame.top;
		System.out.println(statusBarHeight);
		// ��ȡ��Ļ���͸�
		int width = activity.getWindowManager().getDefaultDisplay().getWidth();
		int height = activity.getWindowManager().getDefaultDisplay()
				.getHeight();
		// ȥ��������
		// Bitmap b = Bitmap.createBitmap(b1, 0, 25, 320, 455);
		Bitmap b = Bitmap.createBitmap(b1, 0, statusBarHeight, width, height
				- statusBarHeight);
		view.destroyDrawingCache();
		savePic(b, "/sdcard/screen_test.png");
		return b;
	}

	// ���浽sdcard
	public static void savePic(Bitmap b, String strFileName) {
		FileOutputStream fos = null;
		try {
			fos = new FileOutputStream(strFileName);
			if (null != fos) {
				b.compress(Bitmap.CompressFormat.PNG, 90, fos);
				fos.flush();
				fos.close();
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	/**
	 * ?????* ��View����ת����bitmap ?????*
	 */
	public static Bitmap convertViewToBitmap(View view) {
//		view.measure(MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED),
//				MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
		view.layout(0, 0, view.getMeasuredWidth(), view.getMeasuredHeight());
		view.buildDrawingCache();
		return view.getDrawingCache();
	}

	/**
	 * ��activity�Ľ���
	 * @param activity Ҫ������activity
	 * @param path ͼƬ���·��
	 */
	public static void shootActivity(Activity activity, String path) {
		ScreenShotUtils.savePic(ScreenShotUtils.takeScreenShot(activity), path);
	}

	/**
	 * ��view�Ľ���
	 * @param view Ҫ������view
	 * @param path ͼƬ���·��
	 */
	public static void shootView(View view,String path, int width) {
		// CacheManager.getCacheFolder() + "/" + System.currentTimeMillis() +".png"
		
		Bitmap bitmap = ScreenShotUtils.convertViewToBitmap(view);
		if (bitmap != null) {
			ImageUtils.resizeImage(bitmap, width, path);
		} else {
			
		}
	}

	public static Bitmap getViewBitmap(View v) {
		v.clearFocus();
		v.setPressed(false);
		boolean willNotCache = v.willNotCacheDrawing();
		v.setWillNotCacheDrawing(false);
		// Reset the drawing cache background color to fully transparent
		// for the duration of this operation
		int color = v.getDrawingCacheBackgroundColor();
		v.setDrawingCacheBackgroundColor(0);
		if (color != 0) {
			v.destroyDrawingCache();
		}
		v.buildDrawingCache();
		Bitmap cacheBitmap = v.getDrawingCache();
		if (cacheBitmap == null) {
			Log.e("TTTTTTTTActivity", "failed getViewBitmap(" + v + ")",
					new RuntimeException());
			return null;
		}
		Bitmap bitmap = Bitmap.createBitmap(cacheBitmap);
		// Restore the view
		v.destroyDrawingCache();
		v.setWillNotCacheDrawing(willNotCache);
		v.setDrawingCacheBackgroundColor(color);
		return bitmap;
	}

	/**
	 * ��ȡscrollview����Ļ
	 * **/
	public static Bitmap getBitmapByView(ScrollView scrollView) {
		int h = 0;
		Bitmap bitmap = null;
		// ��ȡlistViewʵ�ʸ߶�
		for (int i = 0; i < scrollView.getChildCount(); i++) {
			h += scrollView.getChildAt(i).getHeight();
			scrollView.getChildAt(i).setBackgroundResource(R.drawable.ic_launcher);
		}
		// ������Ӧ��С��bitmap
		bitmap = Bitmap.createBitmap(scrollView.getWidth(), h,
				Bitmap.Config.ARGB_8888);
		final Canvas canvas = new Canvas(bitmap);
		scrollView.draw(canvas);
		// �������
		FileOutputStream out = null;
		try {
			out = new FileOutputStream("/sdcard/screen_test.png");
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		}
		try {
			if (null != out) {
				bitmap.compress(Bitmap.CompressFormat.PNG, 100, out);
				out.flush();
				out.close();
			}
		} catch (IOException e) {
		}
		return bitmap;
	}

	private static String TAG = "Listview and ScrollView item ��ͼ:";

	/**
	 * ?????*? ��ͼlistview ?????*
	 **/
	public static Bitmap getbBitmap(ListView listView) {
		int h = 0;
		Bitmap bitmap = null;
		// ��ȡlistViewʵ�ʸ߶�
		for (int i = 0; i < listView.getChildCount(); i++) {
			h += listView.getChildAt(i).getHeight();
		}
		Log.d(TAG, "ʵ�ʸ߶�:" + h);
		Log.d(TAG, "list �߶�:" + listView.getHeight());
		// ������Ӧ��С��bitmap
		bitmap = Bitmap.createBitmap(listView.getWidth(), h,
				Bitmap.Config.ARGB_8888);
		final Canvas canvas = new Canvas(bitmap);
		listView.draw(canvas);
		// �������
		FileOutputStream out = null;
		try {
			out = new FileOutputStream("/sdcard/screen_test.png");
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		}
		try {
			if (null != out) {
				bitmap.compress(Bitmap.CompressFormat.PNG, 100, out);
				out.flush();
				out.close();
			}
		} catch (IOException e) {
		}
		return bitmap;
	}
}