七牛---Android SDK断点续传与暂停上传Demo
16lz
2021-01-22
很多用户遇到Android SDK断点续传的问题，这里以一个简单的Demo给出下实现的方法，这里的Demo主要实现从相册选择一张图片上传、封装进度条、断点续传、暂停上传、自定义变量等知识。
可以参考放GitHub(Android Studio)上的源码: https://github.com/clouddxy/AndroidDemo
这里直接给出MainActivity中的代码:
package com.dxy.cloud.myapplication;
import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.ProgressBar;
import android.widget.TextView;
import com.qiniu.android.http.ResponseInfo;
import com.qiniu.android.storage.Configuration;
import com.qiniu.android.storage.KeyGenerator;
import com.qiniu.android.storage.Recorder;
import com.qiniu.android.storage.UpCancellationSignal;
import com.qiniu.android.storage.UpCompletionHandler;
import com.qiniu.android.storage.UpProgressHandler;
import com.qiniu.android.storage.UploadManager;
import com.qiniu.android.storage.UploadOptions;
import com.qiniu.android.storage.persistent.FileRecorder;
import com.qiniu.android.utils.UrlSafeBase64;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.HashMap;
public class MainActivity extends Activity {
private Button button1;
private Button button2;
private Button button3;
private ImageView imageview;
private Uri imageUri;
private TextView textview;
private ProgressBar progressbar;
public static final int RESULT_LOAD_IMAGE = 1;
private volatile boolean isCancelled = false;
UploadManager uploadManager;
public MainActivity() {
//断点上传
String dirPath = "/storage/emulated/0/Download";
Recorder recorder = null;
try{
File f = File.createTempFile("qiniu_xxxx", ".tmp");
Log.d("qiniu", f.getAbsolutePath().toString());
dirPath = f.getParent();
recorder = new FileRecorder(dirPath);
} catch(Exception e) {
e.printStackTrace();
}
final String dirPath1 = dirPath;
//默认使用 key 的url_safe_base64编码字符串作为断点记录文件的文件名。
//避免记录文件冲突（特别是key指定为null时），也可自定义文件名(下方为默认实现)：
KeyGenerator keyGen = new KeyGenerator(){
public String gen(String key, File file){
// 不必使用url_safe_base64转换，uploadManager内部会处理
// 该返回值可替换为基于key、文件内容、上下文的其它信息生成的文件名
String path = key + "_._" + new StringBuffer(file.getAbsolutePath()).reverse();
Log.d("qiniu", path);
File f = new File(dirPath1, UrlSafeBase64.encodeToString(path));
BufferedReader reader = null;
try {
reader = new BufferedReader(new FileReader(f));
String tempString = null;
int line = 1;
try {
while ((tempString = reader.readLine()) != null) {
// System.out.println("line " + line + ": " + tempString);
Log.d("qiniu", "line " + line + ": " + tempString);
line++;
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
try{
reader.close();
} catch(Exception e) {
e.printStackTrace();
}
}
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return path;
}
};
Configuration config = new Configuration.Builder()
// recorder 分片上传时，已上传片记录器
// keyGen 分片上传时，生成标识符，用于片记录器区分是那个文件的上传记录
.recorder(recorder, keyGen)
.build();
// 实例化一个上传的实例
uploadManager = new UploadManager(config);
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button1 = (Button) findViewById(R.id.bt1);
button2 = (Button) findViewById(R.id.bt2);
button3 = (Button) findViewById(R.id.bt3);
imageview = (ImageView) findViewById(R.id.iv);
textview = (TextView) findViewById(R.id.tv);
progressbar = (ProgressBar) findViewById(R.id.pb);
// final String token = edittext.getText().toString();
button1.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Intent i = new Intent(
Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(i, RESULT_LOAD_IMAGE);
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == RESULT_LOAD_IMAGE && resultCode == RESULT_OK
&& data != null) {
Uri selectedImage = data.getData();
String[] filePathColumn = { MediaStore.Images.Media.DATA };
Cursor cursor = getContentResolver().query(selectedImage,
filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
final String picturePath = cursor.getString(columnIndex);
Log.d("PICTUREPATH", picturePath);
cursor.close();
imageview.setVisibility(View.VISIBLE);
imageview.setImageBitmap(BitmapFactory.decodeFile(picturePath));
//自定义参数returnbody
//"returnBody":"{\"key\":$(key),\"hash\":$(etag),\"fname\":$(fname),\"phone\":$(x:phone)}
final String token = "um6IEH7mtwnwkGpjImD08JdxlvViuELhI4mFfoeL:CJy8mWhEBn5qxhZIyPAg9eHH4iA=:eyJzY29wZSI6ImphdmFkZW1vIiwicmV0dXJuQm9keSI6IntcImtleVwiOiQoa2V5KSxcImhhc2hcIjokKGV0YWcpLFwiZm5hbWVcIjokKGZuYW1lKSxcInBob25lXCI6JCh4OnBob25lKX0iLCJkZWFkbGluZSI6MTQ1OTg0NjQyOH0=";
button2.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
//设定需要添加的自定义变量为Map<String, String>类型 并且放到UploadOptions第一个参数里面
HashMap<String, String> map = new HashMap<String, String>();
map.put("x:phone", "12345678");
Log.d("qiniu", "click upload");
isCancelled = false;
uploadManager.put(picturePath, null, token,
new UpCompletionHandler() {
public void complete(String key,
ResponseInfo info, JSONObject res) {
Log.i("qiniu", key + ",\r\n " + info
+ ",\r\n " + res);
if(info.isOK()==true){
textview.setText(res.toString());
}
}
}, new UploadOptions(map, null, false,
new UpProgressHandler() {
public void progress(String key, double percent){
Log.i("qiniu", key + ": " + percent);
progressbar.setVisibility(View.VISIBLE);
int progress = (int)(percent*1000);
// Log.d("qiniu", progress+"");
progressbar.setProgress(progress);
if(progress==1000){
progressbar.setVisibility(View.GONE);
}
}
}, new UpCancellationSignal(){
@Override
public boolean isCancelled() {
return isCancelled;
}
}));
}
});
button3.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
isCancelled = true;
}
});
}
}
}上传过程进度条:
上传后自定义变量回调：
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