Android图片添加水印
Posted mo_weifeng
tags:
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最终效果
参考https://github.com/echoMu/WaterMaskDemo
https://github.com/echoMu/WaterMaskDemo
首先要自定义左下角的view
WaterMaskView
import android.content.Context;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.widget.RelativeLayout;
import android.widget.TextView;
import com.enneagon.net.R;
/**
* 自定义水印view
*/
public class WaterMaskView extends RelativeLayout
private TextView tv_date;
private TextView tv_stationName;
private TextView tv_long;
private TextView tv_lat;
private TextView tv_address;
private TextView tv_date2;
private TextView tv_stationName2;
private TextView tv_long2;
private TextView tv_lat2;
private TextView tv_address2;
public WaterMaskView(Context context)
this(context, null);
public WaterMaskView(Context context, AttributeSet attrs)
super(context, attrs);
LayoutInflater.from(context).inflate(R.layout.layout_watermask, this, true);
tv_date = (TextView) findViewById(R.id.tv_date);
tv_stationName = (TextView) findViewById(R.id.tv_stationName);
tv_long = (TextView) findViewById(R.id.tv_long);
tv_lat = (TextView) findViewById(R.id.tv_lat);
tv_address = (TextView) findViewById(R.id.tv_address);
tv_date2 = (TextView) findViewById(R.id.tv_date2);
tv_stationName2 = (TextView) findViewById(R.id.tv_stationName2);
tv_long2 = (TextView) findViewById(R.id.tv_long2);
tv_lat2 = (TextView) findViewById(R.id.tv_lat2);
tv_address2 = (TextView) findViewById(R.id.tv_address2);
public void setInfoDate(String content)
tv_date.setText(content);
tv_date2.setText(content);
public void setInfoAddress(String content)
tv_address.setText(content);
tv_address2.setText(content);
public void setInfoLat(String content)
tv_lat.setText(content);
tv_lat2.setText(content);
public void setInfoLon(String content)
tv_long.setText(content);
tv_long2.setText(content);
public void setInfoStationName(String content)
tv_stationName.setText(content);
tv_stationName2.setText(content);
layout_watermask.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<LinearLayout
android:paddingRight="4dp"
android:layout_width="220dp"
android:layout_height="wrap_content"
android:alpha="0.4"
android:background="@color/black"
android:orientation="vertical"
android:paddingTop="4dp"
android:paddingLeft="4dp"
android:paddingBottom="4dp">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="日"
android:textColor="@color/white"
android:textSize="14sp"
android:visibility="invisible" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="占"
android:textColor="@color/white"
android:textSize="14sp"
android:visibility="invisible" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="占"
android:textColor="@color/white"
android:textSize="14sp"
android:visibility="invisible" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="期："
android:textColor="@color/white"
android:textSize="14sp"
android:visibility="invisible" />
<TextView
android:id="@+id/tv_date2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="4dp"
android:textColor="@color/white"
android:textSize="14sp"
android:visibility="invisible"
tools:text="2021-07-12 00:00:00" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="4dp"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="站点名称："
android:textColor="@color/white"
android:textSize="14sp"
android:visibility="invisible" />
<TextView
android:id="@+id/tv_stationName2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="4dp"
android:textColor="@color/white"
android:textSize="14sp"
android:visibility="invisible"
tools:text="xxx站点" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="4dp"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="经"
android:textColor="@color/white"
android:textSize="14sp"
android:visibility="invisible" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="占"
android:textColor="@color/white"
android:textSize="14sp"
android:visibility="invisible" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="占"
android:textColor="@color/white"
android:textSize="14sp"
android:visibility="invisible" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="度："
android:textColor="@color/white"
android:textSize="14sp"
android:visibility="invisible" />
<TextView
android:id="@+id/tv_long2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="4dp"
android:textColor="@color/white"
android:textSize="14sp"
android:visibility="invisible"
tools:text="333333" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="4dp"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="纬"
android:textColor="@color/white"
android:textSize="14sp"
android:visibility="invisible" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="占"
android:textColor="@color/white"
android:textSize="14sp"
android:visibility="invisible" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="占"
android:textColor="@color/white"
android:textSize="14sp"
android:visibility="invisible" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="度："
android:textColor="@color/white"
android:textSize="14sp"
android:visibility="invisible" />
<TextView
android:id="@+id/tv_lat2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="4dp"
android:textColor="@color/white"
android:textSize="14sp"
android:visibility="invisible"
tools:text="1" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="4dp"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="地"
android:textColor="@color/white"
android:textSize="14sp"
android:visibility="invisible" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="占"
android:textColor="@color/white"
android:textSize="14sp"
android:visibility="invisible" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="占"
android:textColor="@color/white"
android:textSize="14sp"
android:visibility="invisible" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="址："
android:textColor="@color/white"
android:textSize="14sp"
android:visibility="invisible" />
<TextView
android:id="@+id/tv_address2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="4dp"
android:textColor="@color/white"
android:textSize="14sp"
android:visibility="invisible"
tools:text="1234" />
</LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_width="220dp"
android:layout_height="wrap_content"
android:orientation="vertical"
android:paddingLeft="4dp"
android:paddingTop="4dp"
android:paddingRight="4dp"
android:paddingBottom="4dp">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="日"
android:textColor="@color/white"
android:textSize="14sp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="占"
android:textColor="@color/white"
android:textSize="14sp"
android:visibility="invisible" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="占"
android:textColor="@color/white"
android:textSize="14sp"
android:visibility="invisible" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="期："
android:textColor="@color/white"
android:textSize="14sp" />
<TextView
android:id="@+id/tv_date"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="4dp"
android:textColor="@color/white"
android:textSize="14sp"
tools:text="2021-07-12 00:00:00" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="4dp"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="站点名称："
android:textColor="@color/white"
android:textSize="14sp" />
<TextView
android:id="@+id/tv_stationName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="4dp"
android:textColor="@color/white"
android:textSize="14sp"
tools:text="xxx站点" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="4dp"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="经"
android:textColor="@color/white"
android:textSize="14sp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="占"
android:textColor="@color/white"
android:textSize="14sp"
android:visibility="invisible" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="占"
android:textColor="@color/white"
android:textSize="14sp"
android:visibility="invisible" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="度："
android:textColor="@color/white"
android:textSize="14sp" />
<TextView
android:id="@+id/tv_long"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="4dp"
android:textColor="@color/white"
android:textSize="14sp"
tools:text="333333" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="4dp"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="纬"
android:textColor="@color/white"
android:textSize="14sp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="占"
android:textColor="@color/white"
android:textSize="14sp"
android:visibility="invisible" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="占"
android:textColor="@color/white"
android:textSize="14sp"
android:visibility="invisible" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="度："
android:textColor="@color/white"
android:textSize="14sp" />
<TextView
android:id="@+id/tv_lat"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="4dp"
android:textColor="@color/white"
android:textSize="14sp"
tools:text="11F" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="4dp"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="地"
android:textColor="@color/white"
android:textSize="14sp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="占"
android:textColor="@color/white"
android:textSize="14sp"
android:visibility="invisible" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="占"
android:textColor="@color/white"
android:textSize="14sp"
android:visibility="invisible" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="址："
android:textColor="@color/white"
android:textSize="14sp" />
<TextView
android:id="@+id/tv_address"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="4dp"
android:textColor="@color/white"
android:textSize="14sp"
tools:text="1234" />
</LinearLayout>
</LinearLayout>
</RelativeLayout>接着是水印工具类
WaterMaskUtil
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.Rect;
import android.view.View;
/**
* <pre>
* author : echoMu
* e-mail :
* time : 2017/07/12
* desc :
* version:
* </pre>
*/
public class WaterMaskUtil
/**
* 设置水印图片在左上角
* @param src
* @param watermark
* @param paddingLeft
* @param paddingTop
* @return
*/
public static Bitmap createWaterMaskLeftTop(
Context context, Bitmap src, Bitmap watermark,
int paddingLeft, int paddingTop)
return createWaterMaskBitmap(src, watermark,
dp2px(context, paddingLeft), dp2px(context, paddingTop));
/**
* 设置水印图片在右下角
* @param src
* @param watermark
* @param paddingRight
* @param paddingBottom
* @return
*/
public static Bitmap createWaterMaskRightBottom(
Context context, Bitmap src, Bitmap watermark,
int paddingRight, int paddingBottom)
return createWaterMaskBitmap(src, watermark,
src.getWidth() - watermark.getWidth() - dp2px(context, paddingRight),
src.getHeight() - watermark.getHeight() - dp2px(context, paddingBottom));
/**
* 设置水印图片到右上角
* @param src
* @param watermark
* @param paddingRight
* @param paddingTop
* @return
*/
public static Bitmap createWaterMaskRightTop(
Context context, Bitmap src, Bitmap watermark,
int paddingRight, int paddingTop)
return createWaterMaskBitmap( src, watermark,
src.getWidth() - watermark.getWidth() - dp2px(context, paddingRight),
dp2px(context, paddingTop));
/**
* 设置水印图片到左下角
* @param src
* @param watermark
* @param paddingLeft
* @param paddingBottom
* @return
*/
public static Bitmap createWaterMaskLeftBottom(
Context context, Bitmap src, Bitmap watermark,
int paddingLeft, int paddingBottom)
return createWaterMaskBitmap(src, watermark, dp2px(context, paddingLeft),
src.getHeight() - watermark.getHeight() - dp2px(context, paddingBottom));
/**
* 设置水印图片到中间
* @param src
* @param watermark
* @return
*/
public static Bitmap createWaterMaskCenter(Bitmap src, Bitmap watermark)
return createWaterMaskBitmap(src, watermark,
(src.getWidth() - watermark.getWidth()) / 2,
(src.getHeight() - watermark.getHeight()) / 2);
/**
* 绘制水印图片
* @param src 原图
* @param watermark 水印
* @param paddingLeft
* @param paddingTop
* @return
*/
private static Bitmap createWaterMaskBitmap(Bitmap src, Bitmap watermark,
int paddingLeft, int paddingTop)
if (src == null)
return null;
int width = src.getWidth();
int height = src.getHeight();
//创建一个bitmap
Bitmap newb = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);// 创建一个新的和SRC长度宽度一样的位图
//将该图片作为画布
Canvas canvas = new Canvas(newb);
//在画布 0，0坐标上开始绘制原始图片
canvas.drawBitmap(src, 0, 0, null);
//在画布上绘制水印图片
canvas.drawBitmap(watermark, paddingLeft, paddingTop, null);
// 保存
canvas.save();
// canvas.save(Canvas.ALL_SAVE_FLAG);
// 存储
canvas.restore();
return newb;
/**
* 给图片添加文字到左上角
* @param context
* @param bitmap
* @param text
* @return
*/
public static Bitmap drawTextToLeftTop(Context context, Bitmap bitmap, String text,
int size, int color, int paddingLeft, int paddingTop)
Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
paint.setColor(color);
paint.setTextSize(dp2px(context, size));
Rect bounds = new Rect();
paint.getTextBounds(text, 0, text.length(), bounds);
return drawTextToBitmap(context, bitmap, text, paint, bounds,
dp2px(context, paddingLeft),
dp2px(context, paddingTop) + bounds.height());
/**
* 绘制文字到右下角
* @param context
* @param bitmap
* @param text
* @param size
* @param color
* @param paddingRight
* @param paddingBottom
* @return
*/
public static Bitmap drawTextToRightBottom(Context context, Bitmap bitmap, String text,
int size, int color, int paddingRight, int paddingBottom)
Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
paint.setColor(color);
paint.setTextSize(dp2px(context, size));
Rect bounds = new Rect();
paint.getTextBounds(text, 0, text.length(), bounds);
return drawTextToBitmap(context, bitmap, text, paint, bounds,
bitmap.getWidth() - bounds.width() - dp2px(context, paddingRight),
bitmap.getHeight() - dp2px(context, paddingBottom));
/**
* 绘制文字到右上方
* @param context
* @param bitmap
* @param text
* @param size
* @param color
* @param paddingRight
* @param paddingTop
* @return
*/
public static Bitmap drawTextToRightTop(Context context, Bitmap bitmap, String text,
int size, int color, int paddingRight, int paddingTop)
Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
paint.setColor(color);
paint.setTextSize(dp2px(context, size));
Rect bounds = new Rect();
paint.getTextBounds(text, 0, text.length(), bounds);
return drawTextToBitmap(context, bitmap, text, paint, bounds,
bitmap.getWidth() - bounds.width() - dp2px(context, paddingRight),
dp2px(context, paddingTop) + bounds.height());
/**
* 绘制文字到左下方
* @param context
* @param bitmap
* @param text
* @param size
* @param color
* @param paddingLeft
* @param paddingBottom
* @return
*/
public static Bitmap drawTextToLeftBottom(Context context, Bitmap bitmap, String text,
int size, int color, int paddingLeft, int paddingBottom)
Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
paint.setColor(color);
paint.setTextSize(dp2px(context, size));
Rect bounds = new Rect();
paint.getTextBounds(text, 0, text.length(), bounds);
return drawTextToBitmap(context, bitmap, text, paint, bounds,
dp2px(context, paddingLeft),
bitmap.getHeight() - dp2px(context, paddingBottom+2));
/**
* 绘制文字到中间
* @param context
* @param bitmap
* @param text
* @param size
* @param color
* @return
*/
public static Bitmap drawTextToCenter(Context context, Bitmap bitmap, String text,
int size, int color)
Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
paint.setColor(color);
paint.setTextSize(dp2px(context, size));
Rect bounds = new Rect();
paint.getTextBounds(text, 0, text.length(), bounds);
return drawTextToBitmap(context, bitmap, text, paint, bounds,
(bitmap.getWidth() - bounds.width()) / 2,
(bitmap.getHeight() + bounds.height()) / 2);
//图片上绘制文字
private static Bitmap drawTextToBitmap(Context context, Bitmap bitmap, String text,
Paint paint, Rect bounds, int paddingLeft, int paddingTop)
Bitmap.Config bitmapConfig = bitmap.getConfig();
paint.setDither(true); // 获取跟清晰的图像采样
paint.setFilterBitmap(true);// 过滤一些
if (bitmapConfig == null)
bitmapConfig = Bitmap.Config.ARGB_8888;
bitmap = bitmap.copy(bitmapConfig, true);
Canvas canvas = new Canvas(bitmap);
// canvas.drawText(text, paddingLeft, paddingTop, paint);
drawMultiLineText(text, paddingLeft, paddingTop, paint,canvas);
return bitmap;
private static void drawMultiLineText(String str, float x, float y, Paint paint,
Canvas canvas)
String[] lines = str.split("\\n");
float txtSize = -paint.ascent() + paint.descent();
if (paint.getStyle() == Paint.Style.FILL_AND_STROKE
|| paint.getStyle() == Paint.Style.STROKE)
txtSize += paint.getStrokeWidth(); // add stroke width to the text
float lineSpace = txtSize * 0.1f; // default line spacing
for (int i = 0; i < lines.length; ++i)
canvas.drawText(lines[i], x, y + (txtSize + lineSpace) * i, paint);
/**
* 缩放图片
* @param src
* @param w
* @param h
* @return
*/
public static Bitmap scaleWithWH(Bitmap src, double w, double h)
if (w == 0 || h == 0 || src == null)
return src;
else
// 记录src的宽高
int width = src.getWidth();
int height = src.getHeight();
// 创建一个matrix容器
Matrix matrix = new Matrix();
// 计算缩放比例
float scaleWidth = (float) (w / width);
float scaleHeight = (float) (h / height);
// 开始缩放
matrix.postScale(scaleWidth, scaleHeight);
// 创建缩放后的图片
return Bitmap.createBitmap(src, 0, 0, width, height, matrix, true);
/**
* dip转pix
* @param context
* @param dp
* @return
*/
public static int dp2px(Context context, float dp)
final float scale = context.getResources().getDisplayMetrics().density;
return (int) (dp * scale + 0.5f);
/**
* 将一个view转换为Bitmap
* @param view
* @return
*/
public static Bitmap convertViewToBitmap(View view)
view.measure(View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED), View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
view.layout(0, 0, view.getMeasuredWidth(), view.getMeasuredHeight());
view.buildDrawingCache();
Bitmap bitmap = view.getDrawingCache();
return bitmap;
/**
* 缩放Bitmap图片
*
*/
public static Bitmap zoomBitmap(Bitmap bitmap, int width, int height)
int w = bitmap.getWidth();
int h = bitmap.getHeight();
Matrix matrix = new Matrix();
float scaleWidth = ((float) width / w);
float scaleHeight = ((float) height / h);
matrix.postScale(scaleWidth, scaleHeight);// 利用矩阵进行缩放不会造成内存溢出
Bitmap newbmp = Bitmap.createBitmap(bitmap, 0, 0, w, h, matrix, true);
return newbmp;
使用方式：
1、获取图片的URL，然后转成bitmap
Bitmap sourBitmap = BitmapFactory.decodeFile(fileUrl);2、添加水印，并转为Bitmap
//默认设置水印位置在左下
Bitmap WaterBitmap = saveWaterMask(context, 3, sourBitmap,lng, lat, address, stationName);
/**
* @param position 左上为0，顺时针算起
*/
private static Bitmap saveWaterMask(Context context, int position, Bitmap sourBitmap,String lng, String lat, String address, String stationName)
WaterMaskView waterMaskView = new WaterMaskView(context);
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
waterMaskView.setLayoutParams(params);
// waterMaskView.setCompanyText(address);
// waterMaskView.setInfoText(stationName);
String time = TimeUtils.getCurrentTimeInString();
waterMaskView.setInfoDate(time);
waterMaskView.setInfoAddress(address);
waterMaskView.setInfoLat(lat);
waterMaskView.setInfoLon(lng);
waterMaskView.setInfoStationName(stationName);
Bitmap waterBitmap = WaterMaskUtil.convertViewToBitmap(waterMaskView);
//根据原图处理要生成的水印的宽高
float width = sourBitmap.getWidth();
float height = sourBitmap.getHeight();
float be = width / height;
if ((float) 16 / 9 >= be && be >= (float) 4 / 3)
//在图片比例区间内16;9~4：3内，将生成的水印bitmap设置为原图宽高各自的1/5
waterBitmap = WaterMaskUtil.zoomBitmap(waterBitmap, (int) width / 5, (int) height / 5);
else if (be > (float) 16 / 9)
//生成4：3的水印
waterBitmap = WaterMaskUtil.zoomBitmap(waterBitmap, (int) width / 5, (int) width * 3 / 20);
else if (be < (float) 4 / 3)
//生成4：3的水印
waterBitmap = WaterMaskUtil.zoomBitmap(waterBitmap, (int) height * 4 / 15, (int) height / 5);
Bitmap watermarkBitmap = null;
switch (position)
case 0:
watermarkBitmap = WaterMaskUtil.createWaterMaskLeftTop(context, sourBitmap, waterBitmap, 0, 0);
break;
case 1:
watermarkBitmap = WaterMaskUtil.createWaterMaskRightTop(context, sourBitmap, waterBitmap, 0, 0);
break;
case 2:
watermarkBitmap = WaterMaskUtil.createWaterMaskRightBottom(context, sourBitmap, waterBitmap, 0, 0);
break;
case 3:
watermarkBitmap = WaterMaskUtil.createWaterMaskLeftBottom(context, sourBitmap, waterBitmap, 0, 0);
break;
return watermarkBitmap;
3、将Bitmap保存到手机，获取文件URL，最后将文件上传到服务器
//保存图片
String fileName = "IMG_" + new Date().getTime() + RandomUtil.getRandom(10000) + ".png";
String targetFileUrl = saveBitmap(context, WaterBitmap, fileName);private static String saveBitmap(Context context, Bitmap mBitmap, String name)
String appName = context.getResources().getString(R.string.app_name);
String folder = Environment.getExternalStorageDirectory()
+ File.separator + appName + File.separator + "photo";
LogUtils.i("folder=" + folder);
File folderFile = new File(folder);
if (!folderFile.exists())
boolean isSuccess = folderFile.mkdirs();
LogUtils.i("创建文件夹路径是否成功=" + isSuccess);
String target = folder + File.separator + name;
LogUtils.i("target=" + target);
File targetFile = new File(target);
try
targetFile.createNewFile();
catch (IOException e)
LogUtils.e("在保存图片时出错：" + e.toString());
FileOutputStream fOut = null;
try
fOut = new FileOutputStream(targetFile);
catch (FileNotFoundException e)
e.printStackTrace();
mBitmap.compress(Bitmap.CompressFormat.PNG, 100, fOut);
try
fOut.flush();
catch (IOException e)
e.printStackTrace();
try
fOut.close();
catch (IOException e)
e.printStackTrace();
return target;
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