http://blog.csdn.net/wbwjx/article/details/46674157 Android长截屏-- ScrollView,ListView及RecyclerView截屏
/*
* Copyright (C) 2016. BoBoMEe(wbwjx115@gmail.com)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/ package com.bobomee.android.common.util; import android.app.Activity;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Point;
import android.graphics.Rect;
import android.graphics.drawable.ColorDrawable;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.support.v4.util.LruCache;
import android.support.v7.widget.RecyclerView;
import android.util.DisplayMetrics;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.ScrollView;
import java.util.ArrayList;
import java.util.List; /**
* 获取屏幕的宽高度
*
* @author BoBoMEe
*/
public class ScreenUtil { /**
* shot the current screen ,with the status but the status is trans *
*
* @param ctx current activity
*/
public static Bitmap shotActivity(Activity ctx) { View view = ctx.getWindow().getDecorView();
view.setDrawingCacheEnabled(true);
view.buildDrawingCache(); Bitmap bp = Bitmap.createBitmap(view.getDrawingCache(), 0, 0, view.getMeasuredWidth(),
view.getMeasuredHeight()); view.setDrawingCacheEnabled(false);
view.destroyDrawingCache(); return bp;
} /**
* shot the current screen ,with the status and navigationbar*
*/
public static Bitmap ShotActivity$WithoutStatus$WithoutNavigationBar(Activity ctx) {
int statusH = getStatusH(ctx);
int navigationBarH = getNavigationBarHeight(ctx); View view = ctx.getWindow().getDecorView();
view.setDrawingCacheEnabled(true);
view.buildDrawingCache(); Bitmap bp = Bitmap.createBitmap(view.getDrawingCache(), 0, statusH, view.getMeasuredWidth(),
view.getMeasuredHeight() - statusH - navigationBarH); view.setDrawingCacheEnabled(false);
view.destroyDrawingCache(); return bp;
} /**
* 获得屏幕高度
*/
public static int getScreenWidth(Context context) {
WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
DisplayMetrics outMetrics = new DisplayMetrics();
wm.getDefaultDisplay().getMetrics(outMetrics);
return outMetrics.widthPixels;
} /**
* get the height of screen *
*/
public static int getScreenH(Context ctx) {
int h = 0;
if (Build.VERSION.SDK_INT > 13) {
Point p = new Point();
((WindowManager) ctx.getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay().getSize(p);
h = p.y;
} else {
h = ((WindowManager) ctx.getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay()
.getHeight();
}
return h;
} /**
* get the width of screen **
*/
public static int getScreenW(Context ctx) {
int w = 0;
if (Build.VERSION.SDK_INT > 13) {
Point p = new Point();
((WindowManager) ctx.getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay().getSize(p);
w = p.x;
} else {
w = ((WindowManager) ctx.getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay()
.getWidth();
}
return w;
} /**
* get the height of status *
*/
public static int getStatusH(Activity ctx) {
Rect s = new Rect();
ctx.getWindow().getDecorView().getWindowVisibleDisplayFrame(s);
return s.top;
} /**
* get the height of status *
*/
public static int getStatusHeight(Context activity) {
int resourceId = activity.getResources().getIdentifier("status_bar_height", "dimen", "android");
return resourceId > 0 ? activity.getResources().getDimensionPixelSize(resourceId) : 0;
} /**
* get the height of status *
*/
public static int getStatusH(Context ctx) {
int statusHeight = -1;
try {
Class<?> clazz = Class.forName("com.android.internal.R$dimen");
Object object = clazz.newInstance();
int height = Integer.parseInt(clazz.getField("status_bar_height").get(object).toString());
statusHeight = ctx.getResources().getDimensionPixelSize(height);
} catch (Exception e) {
e.printStackTrace();
}
return statusHeight;
} /**
* get the height of title *
*/
public static int getTitleH(Activity ctx) {
int contentTop = ctx.getWindow().findViewById(Window.ID_ANDROID_CONTENT).getTop();
return contentTop - getStatusH(ctx);
} /**
* get the height of NavigationBar
*/ public static int getNavigationBarHeight(Activity mActivity) {
Resources resources = mActivity.getResources();
int resourceId = resources.getIdentifier("navigation_bar_height", "dimen", "android");
int height = resources.getDimensionPixelSize(resourceId);
return height;
} /**
* http://*.com/questions/12742343/android-get-screenshot-of-all-listview-items
*/
public static Bitmap shotListView(ListView listview) { ListAdapter adapter = listview.getAdapter();
int itemscount = adapter.getCount();
int allitemsheight = 0;
List<Bitmap> bmps = new ArrayList<Bitmap>(); for (int i = 0; i < itemscount; i++) { View childView = adapter.getView(i, null, listview);
childView.measure(
View.MeasureSpec.makeMeasureSpec(listview.getWidth(), View.MeasureSpec.EXACTLY),
View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED)); childView.layout(0, 0, childView.getMeasuredWidth(), childView.getMeasuredHeight());
childView.setDrawingCacheEnabled(true);
childView.buildDrawingCache();
bmps.add(childView.getDrawingCache());
allitemsheight += childView.getMeasuredHeight();
} Bitmap bigbitmap =
Bitmap.createBitmap(listview.getMeasuredWidth(), allitemsheight, Bitmap.Config.ARGB_8888);
Canvas bigcanvas = new Canvas(bigbitmap); Paint paint = new Paint();
int iHeight = 0; for (int i = 0; i < bmps.size(); i++) {
Bitmap bmp = bmps.get(i);
bigcanvas.drawBitmap(bmp, 0, iHeight, paint);
iHeight += bmp.getHeight(); bmp.recycle();
bmp = null;
} return bigbitmap;
} /**
* https://gist.github.com/PrashamTrivedi/809d2541776c8c141d9a
*/
public static Bitmap shotRecyclerView(RecyclerView view) {
RecyclerView.Adapter adapter = view.getAdapter();
Bitmap bigBitmap = null;
if (adapter != null) {
int size = adapter.getItemCount();
int height = 0;
Paint paint = new Paint();
int iHeight = 0;
final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024); // Use 1/8th of the available memory for this memory cache.
final int cacheSize = maxMemory / 8;
LruCache<String, Bitmap> bitmaCache = new LruCache<>(cacheSize);
for (int i = 0; i < size; i++) {
RecyclerView.ViewHolder holder = adapter.createViewHolder(view, adapter.getItemViewType(i));
adapter.onBindViewHolder(holder, i);
holder.itemView.measure(
View.MeasureSpec.makeMeasureSpec(view.getWidth(), View.MeasureSpec.EXACTLY),
View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
holder.itemView.layout(0, 0, holder.itemView.getMeasuredWidth(),
holder.itemView.getMeasuredHeight());
holder.itemView.setDrawingCacheEnabled(true);
holder.itemView.buildDrawingCache();
Bitmap drawingCache = holder.itemView.getDrawingCache();
if (drawingCache != null) { bitmaCache.put(String.valueOf(i), drawingCache);
}
height += holder.itemView.getMeasuredHeight();
} bigBitmap = Bitmap.createBitmap(view.getMeasuredWidth(), height, Bitmap.Config.ARGB_8888);
Canvas bigCanvas = new Canvas(bigBitmap);
Drawable lBackground = view.getBackground();
if (lBackground instanceof ColorDrawable) {
ColorDrawable lColorDrawable = (ColorDrawable) lBackground;
int lColor = lColorDrawable.getColor();
bigCanvas.drawColor(lColor);
} for (int i = 0; i < size; i++) {
Bitmap bitmap = bitmaCache.get(String.valueOf(i));
bigCanvas.drawBitmap(bitmap, 0f, iHeight, paint);
iHeight += bitmap.getHeight();
bitmap.recycle();
}
}
return bigBitmap;
} /**
* http://blog.csdn.net/lyy1104/article/details/40048329
*/
public static Bitmap shotScrollView(ScrollView scrollView) {
int h = 0;
Bitmap bitmap = null;
for (int i = 0; i < scrollView.getChildCount(); i++) {
h += scrollView.getChildAt(i).getHeight();
scrollView.getChildAt(i).setBackgroundColor(Color.parseColor("#ffffff"));
}
bitmap = Bitmap.createBitmap(scrollView.getWidth(), h, Bitmap.Config.RGB_565);
final Canvas canvas = new Canvas(bitmap);
scrollView.draw(canvas);
return bitmap;
} /**
* http://*.com/questions/9791714/take-a-screenshot-of-a-whole-view
*/
public static Bitmap shotView(View v, int width, int height) {
Bitmap b = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
Canvas c = new Canvas(b);
v.layout(0, 0, v.getLayoutParams().width, v.getLayoutParams().height);
v.draw(c);
return b;
}
}