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193 changes: 106 additions & 87 deletions
193
app/src/main/java/com/bin/david/smartchart/LineChartActivity.java
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116 changes: 116 additions & 0 deletions
116
chart/src/main/java/com/daivd/chart/component/PicGeneration.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,116 @@ | ||
| package com.daivd.chart.component; | ||
|
|
||
| import android.content.ContentValues; | ||
| import android.graphics.Bitmap; | ||
| import android.graphics.Canvas; | ||
| import android.graphics.Color; | ||
| import android.graphics.drawable.Drawable; | ||
| import android.os.Environment; | ||
| import android.provider.MediaStore; | ||
| import android.view.View; | ||
|
|
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| import com.daivd.chart.data.PicOption; | ||
|
|
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| import java.io.File; | ||
| import java.io.FileOutputStream; | ||
| import java.io.IOException; | ||
|
|
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| /** | ||
| * Created by huang on 2017/10/30. | ||
| * 图片生成 | ||
| */ | ||
|
|
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| public class PicGeneration<V extends View> { | ||
|
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| public boolean save(V v,PicOption option){ | ||
| getChartBitmap(v); | ||
| return saveToGallery(v,option); | ||
| } | ||
|
|
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| private Bitmap getChartBitmap(V v) { | ||
| // 创建一个bitmap 根据我们自定义view的大小 | ||
| Bitmap returnedBitmap = Bitmap.createBitmap(v.getWidth(), | ||
| v.getHeight(), Bitmap.Config.RGB_565); | ||
| // 绑定canvas | ||
| Canvas canvas = new Canvas(returnedBitmap); | ||
| // 获取视图的背景 | ||
| Drawable bgDrawable = v.getBackground(); | ||
| if (bgDrawable != null) | ||
| // 如果有就绘制 | ||
| bgDrawable.draw(canvas); | ||
| else | ||
| // 没有就绘制白色 | ||
| canvas.drawColor(Color.WHITE); | ||
| // 绘制 | ||
| v.draw(canvas); | ||
| return returnedBitmap; | ||
| } | ||
|
|
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| private boolean saveToGallery(V v, PicOption option) { | ||
| String mFilePath; | ||
| // 控制图片质量 | ||
| if (option.getQuality() < 0 || option.getQuality() > 100) | ||
| option.setQuality(50); | ||
| long currentTime = System.currentTimeMillis(); | ||
|
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| File extBaseDir = Environment.getExternalStorageDirectory(); | ||
| File file = new File(extBaseDir.getAbsolutePath() + "/DCIM/" + option.getSubFolderPath()); | ||
| if (!file.exists()) { | ||
| if (!file.mkdirs()) { | ||
| return false; | ||
| } | ||
| } | ||
|
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| String mimeType = ""; | ||
| String fileName = option.getFileName(); | ||
| switch (option.getFormat()) { | ||
| case PNG: | ||
| mimeType = "image/png"; | ||
| if (!fileName.endsWith(".png")) | ||
| fileName += ".png"; | ||
| break; | ||
| case WEBP: | ||
| mimeType = "image/webp"; | ||
| if (!fileName.endsWith(".webp")) | ||
| fileName += ".webp"; | ||
| break; | ||
| case JPEG: | ||
| default: | ||
| mimeType = "image/jpeg"; | ||
| if (!(fileName.endsWith(".jpg") || fileName.endsWith(".jpeg"))) | ||
| fileName += ".jpg"; | ||
| break; | ||
| } | ||
| mFilePath = file.getAbsolutePath() + "/" + fileName; | ||
| FileOutputStream out = null; | ||
| try { | ||
| out = new FileOutputStream(mFilePath); | ||
| Bitmap b = getChartBitmap(v); | ||
| b.compress(option.getFormat(), option.getQuality(), out); | ||
|
|
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| out.flush(); | ||
| out.close(); | ||
|
|
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| } catch (IOException e) { | ||
| e.printStackTrace(); | ||
|
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| return false; | ||
| } | ||
|
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| long size = new File(mFilePath).length(); | ||
|
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| ContentValues values = new ContentValues(8); | ||
|
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| // store the details | ||
| values.put(MediaStore.Images.Media.TITLE, fileName); | ||
| values.put(MediaStore.Images.Media.DISPLAY_NAME, fileName); | ||
| values.put(MediaStore.Images.Media.DATE_ADDED, currentTime); | ||
| values.put(MediaStore.Images.Media.MIME_TYPE, mimeType); | ||
| values.put(MediaStore.Images.Media.DESCRIPTION, option.getFileDescription()); | ||
| values.put(MediaStore.Images.Media.ORIENTATION, 0); | ||
| values.put(MediaStore.Images.Media.DATA, mFilePath); | ||
| values.put(MediaStore.Images.Media.SIZE, size); | ||
| return v.getContext().getContentResolver(). | ||
| insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values) != null; | ||
| } | ||
| } |
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