VersionCode

最新推荐文章于 2024-05-23 07:18:27 发布

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最新推荐文章于 2024-05-23 07:18:27 发布

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CC 4.0 BY-SA版权

本文链接：https://blog.youkuaiyun.com/GUODONG7/article/details/78041753

本文介绍了一种App版本检查及自动更新下载的实现方法，包括版本比较、下载进度显示及下载完成后的自动安装流程。

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private String url ="http://125.39.134.47/r/a.gdown.baidu.com/data/wisegame/b3fa33ccd93f3d50/jinritoutiao_634.apk";

private ProgressDialog progressDialog;//加载框
private Callback.Cancelable cancelable;//请求任务对象

public class Config {

public static final String VERSION_PATH = Environment.getExternalStorageDirectory()+"/kson/versions.apk";
}

public class Version {

private int VersionCode = 200;//版本号
private String url;//远程apk地址

@Override
public String toString() {
return "Version{" +
"VersionCode=" + VersionCode +
", url='" + url + '\'' +
'}';
}

public int getVersionCode() {
return VersionCode;
}

public void setVersionCode(int versionCode) {
VersionCode = versionCode;
}

public String getUrl() {
return url;
}

public void setUrl(String url) {
this.url = url;
}

public Version() {

}

public Version(int versionCode, String url) {

VersionCode = versionCode;
this.url = url;
}
}

te_geng.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {

try {

//包
PackageManager manager = getActivity().getPackageManager();
PackageInfo info = manager.getPackageInfo(getActivity().getPackageName(), 0);
int code = info.versionCode;

Version version = new Version();
version.setUrl(url );

if(code<version.getVersionCode())
{

downloadApk();

}

} catch (PackageManager.NameNotFoundException e) {
e.printStackTrace();
}
}
});

private void initDialog() {

progressDialog = new ProgressDialog(getActivity());
progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);

progressDialog.setButton(ProgressDialog.BUTTON_NEGATIVE, "暂停", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {

//取消下载任务
cancelable.cancel();
}
});

}

private void downloadApk() {

RequestParams params = new RequestParams(url);
params.setAutoRename(true);
params.setCancelFast(true);

if(Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED))
{

params.setSaveFilePath(com.bwie.bean.Config.VERSION_PATH);

}

cancelable = x.http().get(params, new Callback.ProgressCallback<File>() {

@Override
public void onSuccess(File result) {

progressDialog.dismiss();

install(result);

}

@Override
public void onError(Throwable ex, boolean isOnCallback) {

}

@Override
public void onCancelled(CancelledException cex) {

}

@Override
public void onFinished() {

}

@Override
public void onWaiting() {

}

@Override
public void onStarted() {
progressDialog.show();

}

@Override
public void onLoading(long total, long current, boolean isDownloading) {

//下载进度条
if (isDownloading) {
progressDialog.setMax((int) total);
progressDialog.setProgress((int) current);
progressDialog.setTitle("下载进度");
System.out.println("current:" + (int) current * 100 / total);
}

}
});

}

private void install(File file) {

//下载完成后自动安装
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.setDataAndType(Uri.parse("file://" + file.getAbsolutePath()), "application/vnd.android.package-archive");

startActivity(intent);
}