ScreenshotUtils.java

package com.realmo.utils;

import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Rect;
import android.os.Environment;
import android.support.v7.widget.RecyclerView;
import android.text.TextUtils;
import android.util.Log;
import android.view.View;
import android.widget.ListView;
import android.widget.ScrollView;

import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;

/**
 * 代码截屏工具 修改
 *
 * 
 * //保存后发送广播 弹出提示
 * private void saveSuccess(File file){
 * Intent intent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
 * Uri uri = Uri.fromFile(file);
 * intent.setData(uri);
 * sendBroadcast(intent);
 * ToastUtil.initToast(this, "已保存");
 * }
 *
 * 
 */

public class ScreenshotUtils {

 // 程序入口 截取当前屏幕
 public static File shootLoacleView(Activity a, String picpath) {
 return ScreenshotUtils.savePic(ScreenshotUtils.takeScreenShot(a), picpath);
 }

 // 程序入口 截取ScrollView
 public static File shootScrollView(ScrollView scrollView, String picpath) {
 return ScreenshotUtils.savePic(getScrollViewBitmap(scrollView, picpath), picpath);
 }

 // 程序入口 截取ListView
 public static File shootListView(ListView listView, String picpath) {
 return ScreenshotUtils.savePic(getListViewBitmap(listView, picpath), picpath);
 }

 // 程序入口 截取ListView
 public static File shootRecyclerView(RecyclerView recyclerView, String picpath, int rawNum) {
 return ScreenshotUtils.savePic(getRecyclerViewBitmap(recyclerView, picpath, rawNum), picpath);
 }

 //获取默认存储地址 参数要传空
 private static String getDefaultPath() {
 SimpleDateFormat sdf24H = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS", Locale.getDefault());
 String format = sdf24H.format(new Date(System.currentTimeMillis()));
 return Environment.getExternalStorageDirectory().getAbsolutePath() + "/img/" + format + ".png";

 }


 // 获取指定Activity的截屏，保存到png文件
 public static Bitmap takeScreenShot(Activity activity) {
 // View是你需要截图的View
 View view = activity.getWindow().getDecorView();
 view.setDrawingCacheEnabled(true);
 view.buildDrawingCache();
 Bitmap b1 = view.getDrawingCache();

 // 获取状态栏高度
 Rect frame = new Rect();
 activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(frame);
 int statusBarHeight = frame.top;
 System.out.println(statusBarHeight);

 // 获取屏幕长和高
 int width = activity.getWindowManager().getDefaultDisplay().getWidth();
 int height = activity.getWindowManager().getDefaultDisplay()
 .getHeight();
 // 去掉标题栏
 // Bitmap b = Bitmap.createBitmap(b1, 0, 25, 320, 455);
 Bitmap b = Bitmap.createBitmap(b1, 0, statusBarHeight, width, height
 - statusBarHeight);
 view.destroyDrawingCache();
 return b;
 }

 // 保存到sdcard
 public static File savePic(Bitmap b, String strFileName) {
 File file = new File(TextUtils.isEmpty(strFileName) ? getDefaultPath() : strFileName);
 if (!file.getParentFile().exists()) {
 file.getParentFile().mkdir();
 }
 try {
 BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(file));
 b.compress(Bitmap.CompressFormat.PNG, 100, bos);
 bos.flush();
 bos.close();

 } catch (IOException e) {
 e.printStackTrace();
 }
 return file;
 }


 /**
 * 截取scrollview的屏幕 默认
 **/
 public static Bitmap getScrollViewBitmap(ScrollView scrollView, String picpath) {
 int h = 0;
 Bitmap bitmap;
 // 获取listView实际高度
 for (int i = 0; i < scrollView.getChildCount(); i++) {
 h += scrollView.getChildAt(i).getHeight();
 }
 Log.d(TAG, "实际高度:" + h);
 Log.d(TAG, " 高度:" + scrollView.getHeight());
 // 创建对应大小的bitmap
 bitmap = Bitmap.createBitmap(scrollView.getWidth(), h,
 Bitmap.Config.ARGB_8888);
 final Canvas canvas = new Canvas(bitmap);
 scrollView.draw(canvas);
 // 测试输出
 FileOutputStream out = null;
 try {

 out = new FileOutputStream(TextUtils.isEmpty(picpath) ? getDefaultPath() : picpath);
 } 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 截图:";

 /**
 * 截图listview
 **/
 public static Bitmap getListViewBitmap(ListView listView, String picpath) {
 int h = 0;
 Bitmap bitmap;
 // 获取listView实际高度
 for (int i = 0; i < listView.getChildCount(); i++) {
 h += listView.getChildAt(i).getHeight();
 }
 Log.e(TAG, "实际高度:" + h);
 Log.e(TAG, "list 高度:" + listView.getHeight());
 // 创建对应大小的bitmap
 bitmap = Bitmap.createBitmap(listView.getWidth(), h,
 Bitmap.Config.ARGB_8888);
 final Canvas canvas = new Canvas(bitmap);
 listView.draw(canvas);
 // 测试输出
 FileOutputStream out = null;
 try {
 out = new FileOutputStream(TextUtils.isEmpty(picpath) ? getDefaultPath() : picpath);
 } 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 Bitmap getRecyclerViewBitmap(RecyclerView recyclerView, String picpath, int rowNum) {
 int h = 0;
 Bitmap bitmap;
 // 获取listView实际高度
 for (int i = 0; i < recyclerView.getChildCount() / rowNum; i++) {
 h += recyclerView.getChildAt(i).getHeight();
 }
 Log.e(TAG, "实际高度:" + h);
 Log.e(TAG, "list 高度:" + recyclerView.getHeight());
 // 创建对应大小的bitmap
 bitmap = Bitmap.createBitmap(recyclerView.getWidth(), h,
 Bitmap.Config.ARGB_8888);
 final Canvas canvas = new Canvas(bitmap);
 recyclerView.draw(canvas);
 // 测试输出
 FileOutputStream out = null;
 try {
 out = new FileOutputStream(TextUtils.isEmpty(picpath) ? getDefaultPath() : picpath);
 } 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;

 }
}