358 lines
12 KiB
Java
358 lines
12 KiB
Java
package com.gh.common.util;
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import android.content.Context;
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import android.graphics.Bitmap;
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import android.graphics.BitmapFactory;
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import android.graphics.Canvas;
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import android.graphics.Matrix;
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import android.graphics.PixelFormat;
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import android.graphics.drawable.Drawable;
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import android.media.ExifInterface;
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import android.os.Build;
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import com.halo.assistant.HaloApp;
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import java.io.BufferedOutputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.File;
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import java.io.FileNotFoundException;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import androidx.annotation.IntRange;
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import androidx.annotation.RequiresApi;
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import androidx.renderscript.Allocation;
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import androidx.renderscript.Element;
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import androidx.renderscript.RenderScript;
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import androidx.renderscript.ScriptIntrinsicBlur;
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/**
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* Created by LGT on 2016/10/21.
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*/
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public class BitmapUtils {
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/**
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* 保存图片
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*
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* @param newPath
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* @param filePath
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* @return
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*/
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public static boolean savePicture(String newPath, String filePath) {
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BitmapFactory.Options options = new BitmapFactory.Options();
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options.inJustDecodeBounds = true;
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BitmapFactory.decodeFile(filePath, options);
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options.inSampleSize = 2;
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options.inJustDecodeBounds = false;
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File file = new File(newPath);
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int quality = 80;
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do {
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try {
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Bitmap bitmap = BitmapFactory.decodeFile(filePath, options);
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BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(file));
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bitmap.compress(Bitmap.CompressFormat.JPEG, quality, bos);
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bos.flush();
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bos.close();
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} catch (IOException e) {
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file.delete();
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e.printStackTrace();
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return false;
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}
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quality -= 10;
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if (quality < 10) {
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quality = 10;
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}
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} while (file.length() > 81920 && quality > 10);
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return true;
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}
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/**
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* 保存图片
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*
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* @param newPath
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* @param filePath
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* @return
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*/
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public static boolean savePicture(String newPath, String filePath, int compressSize) {
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if (compressSize > new File(filePath).length()) {
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return false;
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}
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BitmapFactory.Options options = new BitmapFactory.Options();
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options.inJustDecodeBounds = true;
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BitmapFactory.decodeFile(filePath, options);
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options.inSampleSize = 2;
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options.inJustDecodeBounds = false;
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Bitmap bitmap = BitmapFactory.decodeFile(filePath, options);
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ByteArrayOutputStream bos = new ByteArrayOutputStream();
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bitmap.compress(Bitmap.CompressFormat.JPEG, 85, bos);
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float zoom = (float) Math.sqrt(compressSize / (float) bos.toByteArray().length);
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Matrix matrix = new Matrix();
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matrix.setScale(zoom, zoom);
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Bitmap result = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true);
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bos.reset();
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bitmap.recycle();
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result.compress(Bitmap.CompressFormat.JPEG, 85, bos);
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while (bos.toByteArray().length > compressSize) {
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matrix.setScale(0.9f, 0.9f);
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result = Bitmap.createBitmap(result, 0, 0, result.getWidth(), result.getHeight(), matrix, true);
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bos.reset();
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result.compress(Bitmap.CompressFormat.JPEG, 85, bos);
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}
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File file = new File(newPath);
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try {
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BufferedOutputStream fbos = new BufferedOutputStream(new FileOutputStream(file));
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result.compress(Bitmap.CompressFormat.JPEG, 85, fbos);
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fbos.flush();
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fbos.close();
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result.recycle();
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} catch (Exception e) {
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file.delete();
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e.printStackTrace();
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return false;
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}
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return true;
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}
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public static Bitmap getBitmapByFile(String filepath, int w, int h) {
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return getBitmapByFile(filepath, w, h, Bitmap.Config.RGB_565);
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}
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public static Bitmap getBitmapByFile(String filepath, Bitmap.Config config) {
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return getBitmapByFile(filepath, 0, 0, config);
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}
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/**
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* 根据文件路径返回bitmap
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*
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* @param filepath 文件路径
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* @param w 宽
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* @param h 高
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* @return bitmap
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*/
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public static Bitmap getBitmapByFile(String filepath, int w, int h, Bitmap.Config config) {
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try {
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BitmapFactory.Options options = new BitmapFactory.Options();
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// 设置为ture只获取图片大小
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options.inJustDecodeBounds = true;
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options.inPreferredConfig = config;
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// 返回为空
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BitmapFactory.decodeFile(filepath, options);
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int width = options.outWidth;
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int height = options.outHeight;
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float scaleWidth = 0.f, scaleHeight = 0.f;
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if (width > w || height > h) {
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// 缩放
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if (w > 0) scaleWidth = ((float) width) / w;
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if (h > 0) scaleHeight = ((float) height) / h;
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}
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options.inJustDecodeBounds = false;
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int scale = (int) Math.ceil(Math.max(scaleWidth, scaleHeight));
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if (scale % 2 == 1) {
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scale += 1;
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}
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options.inSampleSize = scale;
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Bitmap bitmap = BitmapFactory.decodeFile(filepath, options);
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bitmap = rotatePicture(filepath, bitmap);
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if (bitmap != null) {
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return bitmap;
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}
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return null;
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} catch (Exception e) {
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e.printStackTrace();
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return null;
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}
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}
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public static Bitmap rotatePicture(String path, Bitmap bitmap) {
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int rotate = 0;
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try {
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ExifInterface exifInterface = new ExifInterface(path);
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int orientation = exifInterface.getAttributeInt(
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ExifInterface.TAG_ORIENTATION,
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ExifInterface.ORIENTATION_NORMAL);
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switch (orientation) {
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case ExifInterface.ORIENTATION_ROTATE_90:
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rotate = 90;
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break;
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case ExifInterface.ORIENTATION_ROTATE_180:
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rotate = 180;
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break;
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case ExifInterface.ORIENTATION_ROTATE_270:
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rotate = 270;
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break;
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}
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} catch (IOException e) {
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e.printStackTrace();
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}
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if (rotate != 0) {
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Matrix matrix = new Matrix();
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matrix.setRotate(rotate);
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return Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(),
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bitmap.getHeight(), matrix, true);
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} else {
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return bitmap;
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}
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}
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/**
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* Drawable转Bitmap
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*
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* @param isSquare 是否是正方形
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*/
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public static Bitmap drawableToBitmap(Drawable drawable, boolean isSquare) {
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if (drawable == null) {
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return null;
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}
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int w, h;
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// 取 drawable 的长宽
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w = drawable.getIntrinsicWidth();
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h = drawable.getIntrinsicHeight();
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// 在低于 5.1 和运行内存小于 2G 的设备上减小图片大小，避免 OOM，128 * 128 又不是不能看
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if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP
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|| DeviceUtils.getTotalRamSizeOfDevice(HaloApp.getInstance().getApplication()) < 2000) {
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if (isSquare) {
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w = w > 128 ? 128 : w;
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h = h > 128 ? 128 : h;
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} else {
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w = w > 128 ? w / 2 : w;
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h = h > 128 ? h / 2 : h;
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}
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}
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// 取 drawable 的颜色格式
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Bitmap.Config config = drawable.getOpacity() != PixelFormat.OPAQUE ? Bitmap.Config.ARGB_8888
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: Bitmap.Config.RGB_565;
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//建立对应的Bitmap
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Bitmap bitmap = Bitmap.createBitmap(w, h, config);
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// 建立对应 bitmap 的画布
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Canvas canvas = new Canvas(bitmap);
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drawable.setBounds(0, 0, w, h);
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// 把 drawable 内容画到画布中
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drawable.draw(canvas);
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return bitmap;
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}
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/**
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* 修改bitmap透明度
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*
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* @param sourceImg
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* @param config
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* @param number
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* @return
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*/
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public static Bitmap getTransparentBitmap(Bitmap sourceImg, Bitmap.Config config, int number) {
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int[] argb = new int[sourceImg.getWidth() * sourceImg.getHeight()];
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sourceImg.getPixels(argb, 0, sourceImg.getWidth(), 0, 0, sourceImg
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.getWidth(), sourceImg.getHeight());// 获得图片的ARGB值
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number = number * 255 / 100;
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for (int i = 0; i < argb.length; i++) {
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argb[i] = (number << 24) | (argb[i] & 0x00FFFFFF);
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}
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sourceImg = Bitmap.createBitmap(argb, sourceImg.getWidth(), sourceImg
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.getHeight(), config);
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return sourceImg;
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}
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/**
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* 高斯模糊
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*
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* @param context
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* @param image
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* @param radius
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* @return
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*/
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@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN_MR1)
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public static Bitmap getBlurBitmap(Context context, Bitmap image, @IntRange(from = 1, to = 25) int radius) {
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// 计算图片缩小后的长宽
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int width = Math.round(image.getWidth() * 0.8f);
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int height = Math.round(image.getHeight() * 0.8f);
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// 将缩小后的图片做为预渲染的图片。
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Bitmap inputBitmap = Bitmap.createScaledBitmap(image, width, height, false);
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// 创建一张渲染后的输出图片。
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Bitmap outputBitmap = Bitmap.createBitmap(inputBitmap);
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// 创建RenderScript内核对象
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RenderScript rs = RenderScript.create(context);
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// 创建一个模糊效果的RenderScript的工具对象
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ScriptIntrinsicBlur blurScript = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
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// 由于RenderScript并没有使用VM来分配内存,所以需要使用Allocation类来创建和分配内存空间。
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// 创建Allocation对象的时候其实内存是空的,需要使用copyTo()将数据填充进去。
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Allocation tmpIn = Allocation.createFromBitmap(rs, inputBitmap);
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Allocation tmpOut = Allocation.createTyped(rs, tmpIn.getType());
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// 设置渲染的模糊程度, 25f是最大模糊度
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blurScript.setRadius(radius);
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// 设置blurScript对象的输入内存
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blurScript.setInput(tmpIn);
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// 将输出数据保存到输出内存中
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blurScript.forEach(tmpOut);
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// 将数据填充到Allocation中
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tmpOut.copyTo(outputBitmap);
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return outputBitmap;
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}
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/**
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* 保存图片
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*
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* @param bitmap
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* @param path
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*/
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public static void saveBitmap(Bitmap bitmap, String path) {
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File file = new File(path);
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if (file.exists()) {
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file.delete();
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}
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FileOutputStream out;
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try {
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out = new FileOutputStream(file);
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if (bitmap.compress(Bitmap.CompressFormat.PNG, 80, out)) {
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out.flush();
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out.close();
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}
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} catch (FileNotFoundException e) {
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e.printStackTrace();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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/**
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* 压缩图片
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*
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* @param bitmap
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* @param compressSize 压缩大小(单位k)
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*/
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public static Bitmap compressBitmap(Bitmap bitmap, int compressSize) {
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ByteArrayOutputStream bos = new ByteArrayOutputStream();
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Matrix matrix = new Matrix();
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Bitmap result = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true);
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result.compress(Bitmap.CompressFormat.WEBP, 100, bos);
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while (bos.toByteArray().length > compressSize * 1024) {
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matrix.setScale(0.9f, 0.9f);
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result = Bitmap.createBitmap(result, 0, 0, result.getWidth(), result.getHeight(), matrix, true);
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bos.reset();
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result.compress(Bitmap.CompressFormat.WEBP, 100, bos);
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}
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return result;
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}
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}
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