https://github.com/inthewaves/wifipickertester
Launches WifiPickerActivity and shows the resultCode and Intent
https://github.com/inthewaves/wifipickertester
Last synced: about 2 months ago
JSON representation
Launches WifiPickerActivity and shows the resultCode and Intent
- Host: GitHub
- URL: https://github.com/inthewaves/wifipickertester
- Owner: inthewaves
- Created: 2020-09-25T07:04:12.000Z (over 4 years ago)
- Default Branch: master
- Last Pushed: 2020-09-25T07:54:16.000Z (over 4 years ago)
- Last Synced: 2025-01-23T06:14:15.381Z (4 months ago)
- Language: Kotlin
- Size: 131 KB
- Stars: 0
- Watchers: 0
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# WifiPickerTester
Launches WifiPickerActivity and shows the resultCode and Intent
This exposes a bug in Android 11: Launching WifiPickerActivity will never give you a resultCode of
`RESULT_OK`. This is the result of launching the Activity (at time 00:30:37) and pressing the Next
button (at time 00:30:42), with `DEBUG_RESULTS` and `DEBUG_ACTIVITY_STARTS` set to true inside of
`frameworks/base/services/core/java/com/android/server/wm/ActivityTaskManagerDebugConfig.java`:
```
$ adb logcat *:S SettingsActivity ActivityTaskManager SettingsPreference
09-25 00:30:37.214 1033 2237 I ActivityTaskManager: START u0 {act=android.net.wifi.PICK_WIFI_NETWORK cmp=com.android.settings/.wifi.WifiPickerActivity (has extras)} from uid 10136
09-25 00:30:37.214 1033 2237 V ActivityTaskManager: Will send result to Token{25a6b8a ActivityRecord{40005fb u0 com.example.wifipickertester/.MainActivity t88}} ActivityRecord{40005fb u0 com.example.wifipickertester/.MainActivity t88}
09-25 00:30:37.215 1033 2237 D ActivityTaskManager: Activity start allowed: callingUidHasAnyVisibleWindow = 10136, isCallingUidPersistentSystemProcess = false
09-25 00:30:37.231 1033 2237 W ActivityTaskManager: Tried to set launchTime (0) < mLastActivityLaunchTime (824970)
09-25 00:30:37.244 1970 1970 D SettingsActivity: Starting onCreate
09-25 00:30:37.249 1970 1970 D SettingsActivity: Starting to set activity title
09-25 00:30:37.249 1970 1970 D SettingsActivity: Done setting title
09-25 00:30:37.249 1970 1970 D SettingsActivity: Switching to fragment com.android.settings.wifi.WifiSettings
09-25 00:30:37.252 1033 1046 I ActivityTaskManager: START u0 {act=android.settings.WIFI_SETTINGS2 cmp=com.android.settings/.Settings$WifiSettings2Activity (has extras)} from uid 1000
09-25 00:30:37.253 1033 1046 V ActivityTaskManager: Will send result to Token{c727a59 ActivityRecord{7db661e u0 com.android.settings/.wifi.WifiPickerActivity t88}} ActivityRecord{7db661e u0 com.android.settings/.wifi.WifiPickerActivity t88}
09-25 00:30:37.253 1033 1046 D ActivityTaskManager: Activity start allowed for important callingUid (1000)
09-25 00:30:37.260 1033 1046 V ActivityTaskManager: Finishing activity r=ActivityRecord{7db661e u0 com.android.settings/.wifi.WifiPickerActivity t88}, result=0, data=null, reason=app-request
09-25 00:30:37.260 1033 1046 V ActivityTaskManager: Adding result to ActivityRecord{40005fb u0 com.example.wifipickertester/.MainActivity t88} who=null req=0 res=0 data=null
09-25 00:30:37.260 1970 1970 D SettingsActivity: Executed frag manager pendingTransactions
09-25 00:30:37.263 1033 1046 W ActivityTaskManager: Tried to set launchTime (0) < mLastActivityLaunchTime (862021)
09-25 00:30:37.275 1970 1970 D SettingsActivity: Starting onCreate
09-25 00:30:37.280 1970 1970 D SettingsActivity: Starting to set activity title
09-25 00:30:37.280 1970 1970 D SettingsActivity: Done setting title
09-25 00:30:37.280 1970 1970 D SettingsActivity: Switching to fragment com.android.settings.wifi.WifiSettings2
09-25 00:30:37.301 1970 1970 D SettingsActivity: Executed frag manager pendingTransactions
09-25 00:30:37.325 1970 4703 D SettingsActivity: No enabled state changed, skipping updateCategory call
09-25 00:30:37.367 1033 1057 I ActivityTaskManager: Displayed com.android.settings/.Settings$WifiSettings2Activity: +146ms
09-25 00:30:37.393 1033 1046 V ActivityTaskManager: No result destination from ActivityRecord{7db661e u0 com.android.settings/.wifi.WifiPickerActivity t88 f}}
09-25 00:30:42.131 1033 1635 V ActivityTaskManager: Finishing activity r=ActivityRecord{6481b91 u0 com.android.settings/.Settings$WifiSettings2Activity t88}, result=-1, data=null, reason=app-request
09-25 00:30:42.132 1033 1635 V ActivityTaskManager: No result destination from ActivityRecord{6481b91 u0 com.android.settings/.Settings$WifiSettings2Activity t88 f}}
09-25 00:30:42.158 1033 1046 V ActivityTaskManager: Delivering results to ActivityRecord{40005fb u0 com.example.wifipickertester/.MainActivity t88}: [ResultInfo{who=null, request=0, result=0, data=null}]
09-25 00:30:42.676 1033 1046 V ActivityTaskManager: No result destination from ActivityRecord{6481b91 u0 com.android.settings/.Settings$WifiSettings2Activity t88 f}}
```
We can see that
1. `WifiPickerActivity` is started, and it will send results to our MainActivity in this app.
2. `WifiSettings2Activity` is started (because the `WifiSettings` Fragment launches
`WifiSettings2Activity` from the FeatureFlag if statement), and it will send results to
WifiPickerActivity. `WifiPickerActivity` then finishes. This is done by the [WifiSettings
Fragment](https://android.googlesource.com/platform/packages/apps/Settings/+/b33a59b860077e6e0c07b7b232adf4af156645ee/src/com/android/settings/wifi/WifiSettings.java#241):
```
if (FeatureFlagUtils.isEnabled(getContext(), FeatureFlagUtils.SETTINGS_WIFITRACKER2)) {
final Intent intent = new Intent("android.settings.WIFI_SETTINGS2");
final Bundle extras = getActivity().getIntent().getExtras();
if (extras != null) {
intent.putExtras(extras);
}
getContext().startActivity(intent);
finish();
return;
}
```
3. When `WifiPickerActivity` finishes, our MainActivity will get a resultCode of 0
(`RESULT_CANCELLED`)
4. When `WifiSettings2Activity` finishes, `WifiPickerActivity` already finished, so there is "no
result destination".
The `WifiSettings` Fragment is [going to be removed in the
future](https://android.googlesource.com/platform/packages/apps/Settings/+/b33a59b860077e6e0c07b7b232adf4af156645ee%5E%21/#F6),
so workarounds should be reverted when it's done.