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Make tether option preferences listen to own SharedPreferences change

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The SharedPreferences value could be changed by other classes. This can
help make UI consistent with shared preferences value.

Bug: 148968321
Test: UsbTetherPreferenceControllerTest;
BluetoothTetherPreferenceControllerTest;
WifiTetherDisablePreferenceControllerTest;
CodeInspectionTest.

Change-Id: I11bdad2729e88c07ea1f046d9e95a6a63b398931
This commit is contained in:
Zhen Zhang
2020-02-26 12:54:20 -08:00
parent 4d59bce21b
commit 084875a104
5 changed files with 134 additions and 28 deletions
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33
src/com/android/settings/network/BluetoothTetherPreferenceController.java
View File

@@ -42,7 +42,8 @@ import com.google.common.annotations.VisibleForTesting;
* preference. It stores preference value when preference changed.
*/
public final class BluetoothTetherPreferenceController extends BasePreferenceController
implements LifecycleObserver, Preference.OnPreferenceChangeListener {
implements LifecycleObserver, Preference.OnPreferenceChangeListener,
SharedPreferences.OnSharedPreferenceChangeListener {
private static final String TAG = "BluetoothTetherPreferenceController";
private static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG);
@@ -65,6 +66,16 @@ public final class BluetoothTetherPreferenceController extends BasePreferenceCon
new IntentFilter(BluetoothAdapter.ACTION_STATE_CHANGED));
}
@OnLifecycleEvent(Lifecycle.Event.ON_RESUME)
public void onResume() {
mSharedPreferences.registerOnSharedPreferenceChangeListener(this);
}
@OnLifecycleEvent(Lifecycle.Event.ON_PAUSE)
public void onPause() {
mSharedPreferences.unregisterOnSharedPreferenceChangeListener(this);
}
@OnLifecycleEvent(Lifecycle.Event.ON_STOP)
public void onStop() {
mContext.unregisterReceiver(mBluetoothChangeReceiver);
@@ -74,15 +85,15 @@ public final class BluetoothTetherPreferenceController extends BasePreferenceCon
public void displayPreference(PreferenceScreen screen) {
super.displayPreference(screen);
mPreference = screen.findPreference(mPreferenceKey);
if (mPreference != null && mPreference instanceof SwitchPreference) {
((SwitchPreference) mPreference)
.setChecked(mSharedPreferences.getBoolean(mPreferenceKey, false));
}
}
@Override
public void updateState(Preference preference) {
super.updateState(preference);
if (preference == null) {
return;
}
switch (mBluetoothState) {
case BluetoothAdapter.STATE_ON:
case BluetoothAdapter.STATE_OFF:
@@ -96,6 +107,11 @@ public final class BluetoothTetherPreferenceController extends BasePreferenceCon
default:
preference.setEnabled(false);
}
if (preference instanceof SwitchPreference) {
((SwitchPreference) preference)
.setChecked(mSharedPreferences.getBoolean(mPreferenceKey, false));
}
}
@Override
@@ -131,4 +147,11 @@ public final class BluetoothTetherPreferenceController extends BasePreferenceCon
editor.apply();
return true;
}
@Override
public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
if (TextUtils.equals(mPreferenceKey, key)) {
updateState(mPreference);
}
}
}