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Commit f9463c37 authored by Gabriele M's avatar Gabriele M
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Requre a minimum remaining battery capacity to install updates 

The recovery doesn't install the update if the remaining battery
capacity isn't at least 20% (or 15% if charging). Require at least
40%, just to be safe.

Change-Id: I5cd7c40f029141cde2b0922b25fece2b55989710
parent 0332be5e

res/values/integers.xml

0 → 100644
+4 −0
Original line number Diff line number Diff line 
<?xml version="1.0" encoding="utf-8"?>

<resources>

    <integer name="battery_ok_percentage">40</integer>

</resources>

res/values/strings.xml

+2 −0
Original line number Diff line number Diff line
@@ -56,6 +56,8 @@ 
    <string name="finalizing_package">Finalizing package installation</string>

    <string name="preparing_ota_first_boot">Preparing for first boot</string>

    <string name="dialog_prepare_zip_message">Preliminary update preparation</string>

    <string name="dialog_battery_low_title">Low battery</string>

    <string name="dialog_battery_low_message">The battery level is too low, please charge your device to continue.</string>



    <string name="reboot">Reboot</string>

src/org/lineageos/updater/controller/UpdateInstaller.java

+18 −0
Original line number Diff line number Diff line
@@ -17,11 +17,14 @@ package org.lineageos.updater.controller; 


import android.content.Context;

import android.content.SharedPreferences;

import android.os.BatteryManager;

import android.os.SystemClock;

import android.os.SystemProperties;

import android.support.v7.app.AlertDialog;

import android.support.v7.preference.PreferenceManager;

import android.util.Log;



import org.lineageos.updater.R;

import org.lineageos.updater.misc.Constants;

import org.lineageos.updater.misc.FileUtils;

import org.lineageos.updater.misc.Utils;
@@ -65,12 +68,27 @@ class UpdateInstaller { 
        return sInstallingUpdate != null && sInstallingUpdate.equals(downloadId);

    }



    private static boolean isBatteryLevelOk(Context context) {

        BatteryManager bm = context.getSystemService(BatteryManager.class);

        int percent = bm.getIntProperty(BatteryManager.BATTERY_PROPERTY_CAPACITY);

        return percent >= context.getResources().getInteger(R.integer.battery_ok_percentage);

    }



    void install(String downloadId) {

        if (isInstalling()) {

            Log.e(TAG, "Already installing an update");

            return;

        }



        if (!isBatteryLevelOk(mContext)) {

            new AlertDialog.Builder(mContext)

                    .setTitle(R.string.dialog_battery_low_title)

                    .setMessage(R.string.dialog_battery_low_message)

                    .setPositiveButton(android.R.string.ok, null)

                    .show();

            return;

        }



        UpdateInfo update = mUpdaterController.getUpdate(downloadId);

        SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(mContext);

        long buildTimestamp = SystemProperties.getLong(Constants.PROP_BUILD_DATE, 0);