From cef556c0cb83ff76983f16638b46173d0f920e08 Mon Sep 17 00:00:00 2001
From: yangkun <919079498@qq.com>
Date: Tue, 28 May 2019 15:08:02 +0800
Subject: [PATCH] =?UTF-8?q?1.0.2=20=E5=A2=9E=E5=8A=A0=E7=BD=91=E7=BB=9C?=
=?UTF-8?q?=E5=8A=A0=E8=BD=BD=E9=95=BF=E5=9B=BE=20=E6=94=AF=E6=8C=81?=
=?UTF-8?q?=E8=BF=9B=E5=BA=A6=E7=9B=91=E5=90=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
---
.idea/vcs.xml | 6 +
README.md | 2 +
app/build.gradle | 1 +
app/src/main/AndroidManifest.xml | 1 +
.../java/com/yk/big_picture/MainActivity.java | 43 +++-
.../com/yk/big_picture_library/BigView.java | 235 +++++++++++++-----
.../big_picture_library/HttpBitmapUtils.java | 221 ++++++++++++++++
.../LoadNetImageCallBack.java | 11 +
build.gradle | 1 +
9 files changed, 458 insertions(+), 63 deletions(-)
create mode 100644 .idea/vcs.xml
create mode 100644 big_picture_library/src/main/java/com/yk/big_picture_library/HttpBitmapUtils.java
create mode 100644 big_picture_library/src/main/java/com/yk/big_picture_library/LoadNetImageCallBack.java
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..94a25f7
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/README.md b/README.md
index 881d14d..d6b2231 100644
--- a/README.md
+++ b/README.md
@@ -43,6 +43,8 @@
bigView.setImage(BIG_IMAGE_PAHT);
//加载 InputStream
bigView.setImage(InputStream is)
+ //加载网络图片 callBack : 加载中的回调
+ bigView.setNetUrl(String url,LoadNetImageCallBack callBack);
```
### 效果对比
diff --git a/app/build.gradle b/app/build.gradle
index 1c8e003..adef68a 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -26,4 +26,5 @@ dependencies {
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
implementation project(path: ':big_picture_library')
+// implementation 'com.github.yangkun19921001:long_picture_view:1.0.1'
}
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 48b648f..134d3b9 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -4,6 +4,7 @@
+
mImageHeight){
- mRect.bottom=mImageHeight;
- mRect.top=mImageHeight-(int)(mViewHeight/mScale);
+ if (mRect.bottom > mImageHeight) {
+ mRect.bottom = mImageHeight;
+ mRect.top = mImageHeight - (int) (mViewHeight / mScale);
}
- if(mRect.top<0){
- mRect.top=0;
- mRect.bottom=(int)(mViewHeight/mScale);
+ if (mRect.top < 0) {
+ mRect.top = 0;
+ mRect.bottom = (int) (mViewHeight / mScale);
}
invalidate();
return false;
@@ -206,33 +294,35 @@ public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float d
/**
* 处理惯性问题
+ *
* @param e1
* @param e2
- * @param velocityX 每秒移动的x点
+ * @param velocityX 每秒移动的x点
* @param velocityY
* @return
*/
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
//做计算
- mScroller.fling(0,mRect.top,
- 0,(int)-velocityY,
- 0,0,
- 0,mImageHeight-(int)(mViewHeight/mScale));
+ mScroller.fling(0, mRect.top,
+ 0, (int) -velocityY,
+ 0, 0,
+ 0, mImageHeight - (int) (mViewHeight / mScale));
return false;
}
+
/*
使用上一个接口的计算结果
*/
@Override
public void computeScroll() {
- if(mScroller.isFinished()){
+ if (mScroller.isFinished()) {
return;
}
//true 表示当前滑动还没有结束
- if(mScroller.computeScrollOffset()){
- mRect.top=mScroller.getCurrY();
- mRect.bottom=mRect.top+(int)(mViewHeight/mScale);
+ if (mScroller.computeScrollOffset()) {
+ mRect.top = mScroller.getCurrY();
+ mRect.bottom = mRect.top + (int) (mViewHeight / mScale);
invalidate();
}
}
@@ -240,19 +330,48 @@ public void computeScroll() {
@Override
public void onShowPress(MotionEvent e) {
}
+
@Override
public boolean onSingleTapUp(MotionEvent e) {
return false;
}
+
@Override
public void onLongPress(MotionEvent e) {
}
+ //下载图片
+ private InputStream downloadBitmap(String url) {
+ Bitmap bitmap = null;
+ HttpURLConnection conn = null;
+ try {
+ conn = (HttpURLConnection) new URL(url).openConnection();
+ conn.setRequestMethod("GET");
+ conn.setConnectTimeout(3000);
+ conn.setReadTimeout(6000);
+ conn.connect();
+ int responseCode = conn.getResponseCode();
+ if (responseCode == 200) {
+ InputStream inputStream = conn.getInputStream();
+ //把流转换成Bitmap对象
+// bitmap = BitmapFactory.decodeStream(inputStream);
+ return inputStream;
+ }
+ } catch (IOException e) {
+ e.printStackTrace();
+ } finally {
+ if (conn != null) {
+ conn.disconnect();
+ }
+ }
+ return null;
+ }
+}
+
-}
diff --git a/big_picture_library/src/main/java/com/yk/big_picture_library/HttpBitmapUtils.java b/big_picture_library/src/main/java/com/yk/big_picture_library/HttpBitmapUtils.java
new file mode 100644
index 0000000..2d02f44
--- /dev/null
+++ b/big_picture_library/src/main/java/com/yk/big_picture_library/HttpBitmapUtils.java
@@ -0,0 +1,221 @@
+package com.yk.big_picture_library;
+
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.os.AsyncTask;
+import android.os.Environment;
+import android.os.SystemClock;
+import android.util.Log;
+
+import java.io.BufferedOutputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.HttpURLConnection;
+import java.net.MalformedURLException;
+import java.net.URL;
+
+import static android.content.ContentValues.TAG;
+
+/**
+ * 获取服务器图片工具类
+ */
+public class HttpBitmapUtils {
+
+ private static DownCallListener downCallListener;
+ private static DownLoadAsyncTask mDownLoadAsyncTask;
+ private static final String ALBUM_PATH = Environment.getExternalStorageDirectory() + "/BigView/";
+
+
+ public Bitmap downBitmap(String urlPath) {
+ Bitmap bitmap = null;
+ try {
+ URL url = new URL(urlPath);
+ HttpURLConnection httpc = (HttpURLConnection) url.openConnection();
+ httpc.setConnectTimeout(60 * 1000);
+ httpc.setReadTimeout(60 * 1000);
+ if (httpc.getResponseCode() == 200) {
+ InputStream in = httpc.getInputStream();
+ //BitmapFactory->不同方式读取图片进入程序中
+ bitmap = BitmapFactory.decodeStream(in);
+ }
+ } catch (MalformedURLException e) {
+ // TODO Auto-generated catch block
+ e.printStackTrace();
+ } catch (IOException e) {
+ // TODO Auto-generated catch block
+ e.printStackTrace();
+ }
+ return bitmap;
+ }
+
+
+ public static void loadImage(String url, DownCallListener down) {
+ downCallListener = down;
+ mDownLoadAsyncTask = new DownLoadAsyncTask();
+ mDownLoadAsyncTask.execute(url);
+ }
+
+ public void cancel() {
+ if (mDownLoadAsyncTask != null && mDownLoadAsyncTask.getStatus() == AsyncTask.Status.RUNNING) {
+ mDownLoadAsyncTask.cancel(true);
+ }
+ }
+
+
+ /**
+ * 使用 异步任务下载图片 并显示进度
+ * 参数1 String 就是 doInbackground() 的参数类型 我们的代码就在这里写 系统默认调用
+ * 参数2 Integer onProgressUpdate() 的参数类型 系统不会自动调用此方法 手动调用：publishProgress()
+ * 参数3 Bitmap doInbackground() 的返回值类型 也是 onPostExecute() 的参数类型
+ */
+ static class DownLoadAsyncTask extends AsyncTask {
+
+
+ /**
+ * 在 doInbackground() 执行前，系统自动调用 在主线程运行
+ */
+ @Override
+ protected void onPreExecute() {
+ Log.i(TAG, "开始下载----");
+ if (downCallListener != null) {
+ downCallListener.onPreExecute();
+ }
+ }
+
+ /**
+ * 不在主线程 执行
+ *
+ * @param strUrl url
+ * @return 位图
+ */
+ @Override
+ protected String doInBackground(String... strUrl) {
+ HttpURLConnection connection = null;
+ try {
+ URL url = new URL(strUrl[0]);
+ connection = (HttpURLConnection) url.openConnection();
+ connection.setDoInput(true);
+ connection.setConnectTimeout(20000);
+ int code = connection.getResponseCode();
+ if (code == 200) {
+ //为了显示进度条这里使用 字节数组输出流
+ InputStream is = connection.getInputStream();
+ ByteArrayOutputStream bos = new ByteArrayOutputStream();
+ int length = -1;
+ int progress = 0; //进度
+ int count = connection.getContentLength(); //获取内容产固定
+ byte[] bs = new byte[1024];
+ while ((length = is.read(bs)) != -1) {
+ progress += length; //进度累加
+ if (count == 0) {
+ publishProgress(-1);
+ } else {
+ //进度值改变通知
+ publishProgress((int) ((float) progress / count * 100));
+ }
+
+ Log.d("Tag", "=任务是否取消：" + isCancelled() + "=======任务进度：" + (int) ((float) progress / count * 100) + "%");
+ if (isCancelled()) {//如果取消了任务 就不执行
+ return null;
+ }
+
+ bos.write(bs, 0, length);
+ }
+ Log.d("Tag", "=========任务完成");
+ return saveFile(BitmapFactory.decodeByteArray(bos.toByteArray(), 0, bos.size()));
+
+
+ }
+ } catch (Exception e) {
+ e.printStackTrace();
+ if (downCallListener != null) {
+ downCallListener.onLoadError(e);
+ }
+ } finally {
+ if (connection != null) {
+ connection.disconnect();
+ }
+ }
+ return null;
+ }
+
+ /**
+ * 在 doInbackground() 执行后 系统自动调用 在主线程运行
+ *
+ * @param filePathName 位图
+ */
+ @Override
+ protected void onPostExecute(String filePathName) {
+ Log.d("Tag", "===============任务是否取消：" + isCancelled());
+ if (downCallListener != null) {
+ downCallListener.onPostExecute(filePathName);
+ }
+ }
+
+ /**
+ * 系统不会自动调用 使用 publishProgress() 调用
+ * 在主线程执行
+ *
+ * @param values
+ */
+ @Override
+ protected void onProgressUpdate(Integer... values) {
+ int progress = values[0]; //进度值
+ if (progress != -1) {
+ Log.d(TAG, "下载的进度--》" + values + "");
+ if (downCallListener != null) {
+ downCallListener.onProgressUpdate(progress);
+ }
+ }
+ }
+ }
+
+ /**
+ * 保存文件
+ * @param bm
+ * @throws IOException
+ */
+ public static String saveFile(Bitmap bm) throws IOException {
+ File dirFile = new File(ALBUM_PATH);
+ if(!dirFile.exists()){
+ dirFile.mkdir();
+ }
+ File myCaptureFile = new File(ALBUM_PATH + SystemClock.currentThreadTimeMillis() +".png");
+ BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(myCaptureFile));
+ bm.compress(Bitmap.CompressFormat.JPEG, 80, bos);
+ bos.flush();
+ bos.close();
+ return myCaptureFile.getAbsolutePath();
+ }
+
+
+ public interface DownCallListener {
+
+ /**
+ * 开始下载
+ */
+ void onPreExecute();
+
+ /**
+ * 下载进度
+ */
+ void onProgressUpdate(int progress);
+
+ /**
+ * 下载完成
+ */
+
+ void onPostExecute(String bitmap);
+
+ /**
+ * 加载失败
+ * @param e
+ */
+ void onLoadError(Exception e);
+ }
+
+}
+
diff --git a/big_picture_library/src/main/java/com/yk/big_picture_library/LoadNetImageCallBack.java b/big_picture_library/src/main/java/com/yk/big_picture_library/LoadNetImageCallBack.java
new file mode 100644
index 0000000..b600821
--- /dev/null
+++ b/big_picture_library/src/main/java/com/yk/big_picture_library/LoadNetImageCallBack.java
@@ -0,0 +1,11 @@
+package com.yk.big_picture_library;
+
+public interface LoadNetImageCallBack {
+ void onStart();
+
+ void onLoadSucceed();
+
+ void onLoadFail(Exception e);
+
+ void onLoadProgress(int progress);
+}
diff --git a/build.gradle b/build.gradle
index fafc1b9..8cbe0fb 100644
--- a/build.gradle
+++ b/build.gradle
@@ -18,6 +18,7 @@ allprojects {
repositories {
google()
jcenter()
+ maven { url 'https://jitpack.io' }
}
}