A lightweight for use in the android file downloader Download the APK is especially suitable for application in upgrade
1、add the followings to your build.gradle file
compile 'com.lijunhuayc.downloader:easyfiledownloader:1.1.5'2、Using the library is really simple, just look at the source code of the provided sample.
//...
String path = downloadpathText.getText().toString();
File saveDir = null;
System.out.println(Environment.getExternalStorageState() + "------" + Environment.MEDIA_MOUNTED);
if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {//开始下载文件
saveDir = Environment.getExternalStorageDirectory();
} else {
Toast.makeText(MainActivity.this, "SDCard不存在或者写保护", Toast.LENGTH_SHORT).show();
}
wolfDownloader = new DownloaderConfig()
.setThreadNum(3)
.setDownloadUrl(path)
.setSaveDir(saveDir)
.setDownloadListener(new DownloadProgressListener() {
@Override
public void onDownloadTotalSize(int totalSize) {
progressBar.setMax(totalSize);//设置进度条的最大刻度为文件的长度
}
@Override
public void updateDownloadProgress(int size, float percent, float speed) {
resultView.setText(getFormatStr(size, percent, speed));
progressBar.setProgress(size);
}
@Override
public void onDownloadSuccess(String apkPath) {
Toast.makeText(MainActivity.this, "下载成功\n" + apkPath, Toast.LENGTH_SHORT).show();
startBt.setText("开始");
stopBt.setVisibility(View.GONE);
}
@Override
public void onDownloadFailed() {
Toast.makeText(MainActivity.this, "下载失败", Toast.LENGTH_SHORT).show();
startBt.setText("开始");
}
@Override
public void onPauseDownload() {
Toast.makeText(MainActivity.this, "下载暂停", Toast.LENGTH_SHORT).show();
}
@Override
public void onStopDownload() {
Toast.makeText(MainActivity.this, "下载停止", Toast.LENGTH_SHORT).show();
startBt.setText("开始");
stopBt.setVisibility(View.GONE);
}
})
.buildWolf(context);
wolfDownloader.readHistory(new HistoryCallback() {
@Override
public void onReadHistory(int downloadLength, int fileSize) {
if (fileSize != 0) {
progressBar.setMax(fileSize);
progressBar.setProgress(downloadLength);
resultView.setText(getFormatStr(downloadLength, FileDownloader.calculatePercent(downloadLength, fileSize), 0));
}
}
}); switch (view.getId()) {
case R.id.startBt:
switch (startBt.getText().toString()) {
case "开始":
wolfDownloader.startDownload();
startBt.setText("暂停");
stopBt.setVisibility(View.VISIBLE);
break;
case "继续":
wolfDownloader.restartDownload();
startBt.setText("暂停");
break;
case "暂停":
wolfDownloader.pauseDownload();
startBt.setText("继续");
break;
}
break;
case R.id.stopBt:
wolfDownloader.stopDownload();//停止下载会删除下载记录
break;
case R.id.exitBt:
wolfDownloader.exitDownload();//退出下载，保存下载记录
break;
}1、add the followings to your build.gradle file
compile 'com.lijunhuayc.downloader:easyfiledownloader:1.1.1'2、Using the library is really simple, just look at the source code of the provided sample.
public class MainActivity extends Activity implements View.OnClickListener {
private EditText downloadpathText;
private TextView resultView;
private TextView startBt;
private TextView stopBt;
private ProgressBar progressBar;
private Context context;
WolfDownloader wolfDownloader;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
context = this;
downloadpathText = (EditText) this.findViewById(R.id.path);
// downloadpathText.setText("http://221.236.21.155/imtt.dd.qq.com/16891/5C119BDFA17906E5D6F45BDF932460BB.apk?mkey=57d63b47fb8efb5e&f=3580&c=0&fsname=com.shangyi.postop.paitent.android_4.2.0.0_18.apk&hsr=4d5s&p=.apk");
// downloadpathText.setText("https://dl.google.com/dl/android/studio/install/2.2.0.12/android-studio-ide-145.3276617-windows.exe");
downloadpathText.setText("http://xmp.down.sandai.net/kankan/XMPSetup_5.2.3.4962.exe");
progressBar = (ProgressBar) this.findViewById(R.id.downloadbar);
resultView = (TextView) this.findViewById(R.id.resultView);
startBt = (TextView) findViewById(R.id.startBt);
stopBt = (TextView) findViewById(R.id.stopBt);
startBt.setOnClickListener(this);
stopBt.setOnClickListener(this);
String path = downloadpathText.getText().toString();
File saveDir = null;
System.out.println(Environment.getExternalStorageState() + "------" + Environment.MEDIA_MOUNTED);
if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {//开始下载文件
saveDir = Environment.getExternalStorageDirectory();
} else {
Toast.makeText(MainActivity.this, "SDCard不存在或者写保护", Toast.LENGTH_SHORT).show();
}
wolfDownloader = new DownloaderConfig()
.setThreadNum(3)
.setDownloadUrl(path)
.setSaveDir(saveDir)
.addDownloadListener(new DownloadProgressListener() {
@Override
public void onDownloadTotalSize(int totalSize) {
progressBar.setMax(totalSize);//设置进度条的最大刻度为文件的长度
}
@Override
public void updateDownloadProgress(int size, float percent, float speed) {
resultView.setText(getFormatStr(size, percent, speed));
progressBar.setProgress(size);
}
@Override
public void onDownloadSuccess(String apkPath) {
Toast.makeText(MainActivity.this, "下载成功\n" + apkPath, Toast.LENGTH_SHORT).show();
startBt.setText("开始");
stopBt.setVisibility(View.GONE);
}
@Override
public void onDownloadFailed() {
Toast.makeText(MainActivity.this, "下载失败", Toast.LENGTH_SHORT).show();
startBt.setText("开始");
}
@Override
public void onPauseDownload() {
Toast.makeText(MainActivity.this, "下载暂停", Toast.LENGTH_SHORT).show();
}
@Override
public void onStopDownload() {
Toast.makeText(MainActivity.this, "下载停止", Toast.LENGTH_SHORT).show();
startBt.setText("开始");
stopBt.setVisibility(View.GONE);
}
})
.buildWolf(context);
wolfDownloader.readHistory(new HistoryCallback() {
@Override
public void onReadHistory(int downloadLength, int fileSize) {
if (fileSize != 0) {
progressBar.setMax(fileSize);
progressBar.setProgress(downloadLength);
resultView.setText(getFormatStr(downloadLength, FileDownloader.calculatePercent(downloadLength, fileSize), 0));
}
}
});
}
private String getFormatStr(int size, float percent, float speed) {
StringBuilder sBuilder = new StringBuilder();
sBuilder.append(" ").append(FileDownloader.formatSpeed(speed));
sBuilder.append(" ").append(String.valueOf(percent + "%"));
sBuilder.append(" ").append(FileDownloader.formatSize(size)).append("/")
.append(FileDownloader.formatSize(progressBar.getMax()));
return sBuilder.toString();
}
public void onClick(View view) {
switch (view.getId()) {
case R.id.startBt:
switch (startBt.getText().toString()) {
case "开始":
wolfDownloader.startDownload();
startBt.setText("暂停");
stopBt.setVisibility(View.VISIBLE);
break;
case "继续":
wolfDownloader.restartDownload();
startBt.setText("暂停");
break;
case "暂停":
wolfDownloader.pauseDownload();
startBt.setText("继续");
break;
}
break;
case R.id.stopBt:
wolfDownloader.stopDownload();
break;
}
}
@Override
public void onBackPressed() {
Process.killProcess(Process.myPid());
super.onBackPressed();
}
}1、add the followings to your build.gradle file
compile 'com.lijunhuayc.downloader:easyfiledownloader:1.0.3'
2、Using the library is really simple, just look at the source code of the provided sample.
WolfDownloader wolfDownloader = new WolfDownloader(context)
.setThreadNum(3)
.setDownloadUrl(path)
.setSaveDir(Environment.getExternalStorageDirectory())
.addDownloadListener(new DownloadProgressListener() {
@Override
public void onDownloadTotalSize(int totalSize) {
progressBar.setMax(totalSize);//设置进度条的最大刻度为文件的长度
}
@Override
public void updateDownloadProgress(int size, float percent, float speed) {
StringBuilder sBuilder = new StringBuilder();
sBuilder.append(" ").append(FileDownloader.formatSpeed(speed));
sBuilder.append(" ").append(String.valueOf(percent + "%"));
sBuilder.append(" ").append(FileDownloader.formatSize(size)).append("/")
.append(FileDownloader.formatSize(progressBar.getMax()));
resultView.setText(sBuilder.toString());
progressBar.setProgress(size);
}
@Override
public void onDownloadSuccess(String apkPath) {
Toast.makeText(MainActivity.this, "下载成功\n" + apkPath, Toast.LENGTH_SHORT).show();
}
@Override
public void onDownloadFailed() {
Toast.makeText(MainActivity.this, "下载失败", Toast.LENGTH_SHORT).show();
}
@Override
public void onPauseDownload() {
}
@Override
public void onStopDownload() {
}
});
wolfDownloader.startDownload(); public void onClick(View view) {
switch (view.getId()) {
case R.id.startBt:
startDownload();
break;
case R.id.pauseBt:
wolfDownloader.pauseDownload();
break;
case R.id.continueBt:
wolfDownloader.restartDownload();
break;
case R.id.stopBt:
wolfDownloader.stopDownload();
break;
}
}Copyright 2016 lijunhuayc
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.