10.30 alpha
parent
5eb4fb9813
commit
e877ec29cc
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package com.echo.photo_editor.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.Matrix;
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import android.provider.MediaStore;
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import android.util.Base64;
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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 java.nio.ByteBuffer;
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/**
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* @author Wang Yuyang
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* @date 2021-09-22 13:52:43
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*/
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public class PhotoLib {
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public static byte[] BitmapToBytes(Bitmap img) {
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int bytes = img.getByteCount();
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ByteBuffer buf = ByteBuffer.allocate(bytes);
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img.copyPixelsToBuffer(buf);
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byte[] byteArray = buf.array();
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return byteArray;
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}
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public static Bitmap BytesToBitmap(byte[] bytes) {
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Bitmap bitmap = BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
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return bitmap;
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}
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public static Bitmap Base64ToBitmap(String data) {
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byte[] decodedString = Base64.decode(data, Base64.DEFAULT);
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Bitmap decodedByte = BitmapFactory.decodeByteArray(decodedString, 0, decodedString.length);
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return decodedByte;
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}
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public static String saveImageToGallery(Context context, Bitmap bmp) {
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// 首先保存图片
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File appDir = context.getFilesDir();
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if (!appDir.exists()) {
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appDir.mkdir();
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}
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String fileName = System.currentTimeMillis() + ".jpg";
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File file = new File(appDir, fileName);
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try {
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FileOutputStream fos = context.openFileOutput(fileName, Context.MODE_PRIVATE);
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bmp.compress(Bitmap.CompressFormat.JPEG, 100, fos);
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fos.flush();
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fos.close();
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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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// 其次把文件插入到系统图库
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try {
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MediaStore.Images.Media.insertImage(context.getContentResolver(),
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file.getAbsolutePath(), fileName, null);
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} catch (FileNotFoundException e) {
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e.printStackTrace();
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String data = MediaStore.Images.Media.insertImage(context.getContentResolver(), bmp, "Colorized Image", ":)");
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return data;
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}
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// 最后通知图库更新
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// context.sendBroadcast(new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, Uri.parse("file://" + path)));
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return file.getAbsolutePath();
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}
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public static String getRandomFileName() {
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return System.currentTimeMillis() + ".jpg";
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}
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public static Bitmap rotateImage(Bitmap source, float angle) {
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Matrix matrix = new Matrix();
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matrix.postRotate(angle);
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return Bitmap.createBitmap(source, 0, 0, source.getWidth(), source.getHeight(),
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matrix, true);
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}
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}
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