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| public class HtUpdateDialogFragment extends DialogFragment {
private ProgressBar progressBar;
private TextView tvProgress;
private Button btnUpdate, btnSkip, btnCancel;
private volatile boolean isCancelled = false;
private final String apkUrl = "http://115.190.154.26/app-release.apk";
private final int serverVersionCode = 2;
private final int currentVersionCode;
public HtUpdateDialogFragment(Context context) {
currentVersionCode = getVersionCode(context);
}
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container,
@Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.dialog_update, container, false);
initView(view);
return view;
}
private void initView(View view) {
progressBar = view.findViewById(R.id.progress_bar);
tvProgress = view.findViewById(R.id.tv_progress);
btnUpdate = view.findViewById(R.id.btn_update);
btnSkip = view.findViewById(R.id.btn_skip);
btnCancel = view.findViewById(R.id.btn_cancel);
TextView tvInfo = view.findViewById(R.id.tv_update_info);
tvInfo.setText("当前版本：" + currentVersionCode + "\n服务器版本：" + serverVersionCode +
"\n\n更新内容：\n- 修复问题\n- 优化性能");
btnUpdate.setOnClickListener(v -> {
btnUpdate.setVisibility(View.GONE);
btnSkip.setVisibility(View.GONE);
btnCancel.setVisibility(View.VISIBLE);
progressBar.setVisibility(View.VISIBLE);
tvProgress.setVisibility(View.VISIBLE);
startDownload();
});
btnSkip.setOnClickListener(v -> dismiss());
btnCancel.setOnClickListener(v -> {
isCancelled = true;
Toast.makeText(getContext(), "已取消下载", Toast.LENGTH_SHORT).show();
dismiss();
});
}
private void startDownload() {
new Thread(() -> {
HttpURLConnection conn = null;
InputStream is = null;
BufferedOutputStream bos = null;
try {
URL url = new URL(apkUrl);
conn = (HttpURLConnection) url.openConnection();
conn.setConnectTimeout(10000);
conn.setReadTimeout(10000);
conn.connect();
int length = conn.getContentLength();
if (length <= 0) {
showToast("服务器未返回文件大小");
return;
}
is = new BufferedInputStream(conn.getInputStream());
File apkFile = new File(requireContext().getExternalFilesDir(null), "update.apk");
bos = new BufferedOutputStream(new FileOutputStream(apkFile));
byte[] buffer = new byte[8192]; // 8KB缓冲区
int count = 0;
int bytesRead;
int lastProgress = 0;
while ((bytesRead = is.read(buffer)) != -1 && !isCancelled) {
bos.write(buffer, 0, bytesRead);
count += bytesRead;
int progress = (int) (count * 100L / length);
if (progress != lastProgress) {
int finalProgress = progress;
requireActivity().runOnUiThread(() -> {
progressBar.setProgress(finalProgress);
tvProgress.setText("下载进度：" + finalProgress + "%");
});
lastProgress = progress;
}
}
bos.flush();
if (!isCancelled) {
requireActivity().runOnUiThread(() -> {
Toast.makeText(getContext(), "下载完成，准备安装", Toast.LENGTH_SHORT).show();
installApk(apkFile);
dismiss();
});
}
} catch (Exception e) {
Log.e("HtUpdateDialog", "下载出错：" + e.getMessage(), e);
showToast("下载失败：" + e.getMessage());
} finally {
try {
if (is != null) is.close();
if (bos != null) bos.close();
if (conn != null) conn.disconnect();
} catch (Exception ignored) {
}
}
}).start();
}
private void installApk(File apkFile) {
Context context = requireContext();
Uri apkUri;
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
apkUri = FileProvider.getUriForFile(context, context.getPackageName() + ".fileprovider", apkFile);
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
} else {
apkUri = Uri.fromFile(apkFile);
}
intent.setDataAndType(apkUri, "application/vnd.android.package-archive");
context.startActivity(intent);
}
private int getVersionCode(Context context) {
try {
return context.getPackageManager().getPackageInfo(context.getPackageName(), 0).versionCode;
} catch (PackageManager.NameNotFoundException e) {
return 0;
}
}
private void showToast(String msg) {
requireActivity().runOnUiThread(() ->
Toast.makeText(getContext(), msg, Toast.LENGTH_LONG).show());
}
}
|