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App 2.18.0: install from a USB stick

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Settings -> App -> "Install from USB stick" (car build only). It looks
in the top folder of every mounted volume (found from the app's own
folder on it, since the head unit has no file picker) for
NilsMG4-unstable-<version>.apk, takes the newest one newer than the
installed version, checks it against its .sha256 sidecar and the
package name, and installs it with the same PackageInstaller session
as the over-the-air update. The stable build gets a stub and no button.

Tested on the emulator: 2.18.0 installed a 2.18.1 from the storage's
top folder without a confirmation, as the system user, so the OTA
install step should not need one either.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QLJfZQZeAKAwSqViTmLzki
This commit is contained in:
nils
2026-10-18 20:59:45 +02:00
co-authored by Claude Opus 5.5
parent 0fd024cc2e
commit 69d284f81b
11 changed files with 209 additions and 4 deletions
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app/src/main/java/com/evsuite/abrp/MainActivity.java
+17 -2
View File
@@ -265,6 +265,10 @@ public class MainActivity extends AppCompatActivity {
.setText(getString(R.string.settings_version, BuildConfig.VERSION_NAME));
settingsPane.findViewById(R.id.settings_about_button).setOnClickListener(v -> showAbout());
settingsPane.findViewById(R.id.settings_update_button).setOnClickListener(v -> checkForUpdate(v));
View usbButton = settingsPane.findViewById(R.id.settings_usb_button);
usbButton.setOnClickListener(v -> installFromUsb(v));
// The stable build installs nothing itself, so it has no use for the button.
if (!UpdateHook.isSupported()) usbButton.setVisibility(View.GONE);
// Unstable builds check for a newer pre-release; the stable flavor's UpdateHook is
// a no-op and does not even contain the updater.
@@ -408,13 +412,24 @@ public class MainActivity extends AppCompatActivity {
* SHA-256 verified; the final result remains visible until dismissed.
*/
private void checkForUpdate(View button) {
runUpdate(button, R.string.update_checking, listener -> UpdateHook.checkInBackground(this, listener));
}
/** Installs the newest car build from the top folder of a USB stick (unstable builds). */
private void installFromUsb(View button) {
runUpdate(button, R.string.update_usb_looking, listener -> UpdateHook.installFromUsbInBackground(this, listener));
}
/** The update dialog: progress while [start] runs, then its result. */
private void runUpdate(View button, int startText,
java.util.function.Consumer<UpdateHook.Listener> start) {
button.setEnabled(false);
android.widget.LinearLayout panel = new android.widget.LinearLayout(this);
panel.setOrientation(android.widget.LinearLayout.VERTICAL);
int padding = (int) (24 * getResources().getDisplayMetrics().density);
panel.setPadding(padding, padding, padding, padding);
TextView status = new TextView(this);
status.setText(R.string.update_checking);
status.setText(startText);
status.setTextAppearance(R.style.Text_EV_Body);
android.widget.ProgressBar progress = new android.widget.ProgressBar(this, null,
android.R.attr.progressBarStyleHorizontal);
@@ -432,7 +447,7 @@ public class MainActivity extends AppCompatActivity {
.setCancelable(false)
.create();
showKeepingFullScreen(dialog);
UpdateHook.checkInBackground(this, new UpdateHook.Listener() {
start.accept(new UpdateHook.Listener() {
@Override public void onProgress(int percent) {
if (percent < 0) {
progress.setIndeterminate(true);