Manifest.permission.WRITE_EXTERNAL_STORAGE,
Manifest.permission.REQUEST_INSTALL_PACKAGES})
protected void checkUpdate() { showLoadingDialog("Checking for updates..."); version = AppUpdateUtil.getAppVersionCode(this);//Check the current version number // Call method,, , the specific implementation of the interface, receive the passed parameters, and then adjust your own method, requestAppUpdate(version, new DataRequestListener() { @Override public void success(UpdateAppBean data) { // When the returned json, getStatus is 0, go to download apk file, here is the method to download the apk file updateApp(data.getData().getApk_url()); }
@Override
public void fail(String msg) { // Returned json, when getStatus is 1, prompt: "Already the latest version!" SToast(msg); dismissLoadingDialog(); } }); }
//Check the version number, the first request (post),,, UpdateAppBean generates
private void requestAppUpdate(int version, final DataRequestListener listener) { OkGo.post(Const.HOST_URL + Const.UPDATEAPP).params(“version ", version).execute(new StringCallback() { @Override public void onSuccess(Response response) { Gson gson = new Gson(); UpdateAppBean updateAppBean = gson.fromJson(response.body(), UpdateAppBean.class); if ( updateAppBean.getStatus() == 0) { listener.success(updateAppBean); } else { listener.fail(updateAppBean.getMsg()); } }
@Override
public void onError(Response response) { listener.fail("Server connection failed"); dismissLoadingDialog(); } }); }
//If there is a new version, prompt that there is a new version, and then download the apk file
private void updateApp(String apk_url) { dismissLoadingDialog(); DialogUtils.getInstance().showDialog(this, "New version found, do you want to download the update?" , new DialogUtils.DialogListener() { @Override public void positiveButton() { downloadApp(apk_url); } }); }
//Download the apk file and jump (second request, get)
private void downloadApp(String apk_url) { OkGo.get(apk_url).tag(this).execute(new FileCallback() { @Override public void onSuccess(Response response) { String filePath = response.body().getAbsolutePath(); Intent intent = IntentUtil.getInstallAppIntent(mContext, filePath); // Tested here must use startactivity, not stratactivityforresult mContext.startActivity(intent); dismissLoadingDialog() ; mDownloadDialog.dismiss(); mDownloadDialog=null; }
@Override
public void downloadProgress(Progress progress) { // showDownloadDialog(); // mProgress.setProgress((int) (progress.fraction * 100)); if (mDownloadDialog == null) { // Construct the software download dialog box AlertDialog .Builder builder = new AlertDialog.Builder(mContext); builder.setTitle("Updating"); // Add a progress bar to the download dialog final LayoutInflater inflater = LayoutInflater.from(mContext); View v = inflater.inflate(R .layout.item_progress, null); mProgress = (ProgressBar) v.findViewById(R.id.update_progress); builder.setView(v); mDownloadDialog = builder.create(); mDownloadDialog.setCancelable(false); mDownloadDialog.show( );
}
mProgress.setProgress((int) (progress.fraction * 100));
}
});
}
2.2 DataRequestListener：
public interface DataRequestListener { //Request success void success(T data); //Request failure void fail(String msg); }
Next is the tool class, from github, reference, https://github.com/vondear/RxTool
2.3 AppUpdateUtil：
/**
* Get App version code
*
* @param context context
* @return App version code
*/
public static int getAppVersionCode(Context context) { return getAppVersionCode(context, context.getPackageName()); }
2.4 IntentUtil：
public class IntentUtil {
/**
* Get the intent to install App (support 7.0)
*
* @param context
* @param filePath
* @return
*/
public static Intent getInstallAppIntent(Context context, String filePath) { //Local path of apk file File apkfile = new File(filePath); if (!apkfile.exists()) { return null; } Intent intent = new Intent(Intent.ACTION_VIEW); Uri contentUri = FileUtil.getUriForFile(context, apkfile); intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK) ; if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
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This system of study notes is suitable for the crowd:
First, the learning knowledge is relatively fragmented, and there is no reasonable learning route and advanced direction.
Second, after several years of development, I don't know how to advance further, and I am quite confused.
Third, at the right age, I don’t know how to develop in the future, whether to transform management or strengthen technical research. If you need it, I just have a reason here, don't come and get it! Maybe it can change your current state!
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