Split loading process for battery header

This cl creates BatteryHeaderPreferenceController, which will first load the battery level in ui thread(in displayPreference()), then display the remaining time once we get the battery stats. This is the best we can do to avoid ui flashing while removing the animation Bug: 38349587 Test: RunSettingsRoboTests Change-Id: Ic3622bb73562ba42e69b37e5674a724c03c45f12
2017-05-19 13:29:09 -07:00
parent 4d815d93ad
commit 605dbc66be
5 changed files with 241 additions and 74 deletions
--- a/src/com/android/settings/fuelgauge/BatteryHeaderPreferenceController.java
+++ b/src/com/android/settings/fuelgauge/BatteryHeaderPreferenceController.java
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ *
+ */
+
+package com.android.settings.fuelgauge;
+
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.support.annotation.VisibleForTesting;
+import android.support.v7.preference.PreferenceScreen;
+import android.widget.TextView;
+
+import com.android.settings.R;
+import com.android.settings.applications.LayoutPreference;
+import com.android.settings.core.PreferenceController;
+import com.android.settingslib.BatteryInfo;
+import com.android.settingslib.Utils;
+
+/**
+ * Controller that update the battery header view
+ */
+public class BatteryHeaderPreferenceController extends PreferenceController {
+    @VisibleForTesting
+    static final String KEY_BATTERY_HEADER = "battery_header";
+    @VisibleForTesting
+    BatteryMeterView mBatteryMeterView;
+    @VisibleForTesting
+    TextView mTimeText;
+    @VisibleForTesting
+    TextView mSummary;
+
+    private LayoutPreference mBatteryLayoutPref;
+
+    public BatteryHeaderPreferenceController(Context context) {
+        super(context);
+    }
+
+    @Override
+    public void displayPreference(PreferenceScreen screen) {
+        super.displayPreference(screen);
+
+        mBatteryLayoutPref = (LayoutPreference) screen.findPreference(KEY_BATTERY_HEADER);
+        mBatteryMeterView = (BatteryMeterView) mBatteryLayoutPref
+                .findViewById(R.id.battery_header_icon);
+        mTimeText = (TextView) mBatteryLayoutPref.findViewById(R.id.battery_percent);
+        mSummary = (TextView) mBatteryLayoutPref.findViewById(R.id.summary1);
+
+        Intent batteryBroadcast = mContext.registerReceiver(null,
+                new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
+        final int batteryLevel = Utils.getBatteryLevel(batteryBroadcast);
+
+        mBatteryMeterView.setBatteryLevel(batteryLevel);
+        mTimeText.setText(Utils.formatPercentage(batteryLevel));
+    }
+
+    @Override
+    public boolean isAvailable() {
+        return true;
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return KEY_BATTERY_HEADER;
+    }
+
+    public void updateHeaderPreference(BatteryInfo info) {
+        mTimeText.setText(Utils.formatPercentage(info.batteryLevel));
+        if (info.remainingLabel == null) {
+            mSummary.setText(info.statusLabel);
+        } else {
+            mSummary.setText(info.remainingLabel);
+        }
+
+        mBatteryMeterView.setBatteryLevel(info.batteryLevel);
+        mBatteryMeterView.setCharging(!info.discharging);
+    }
+}