/*
* Copyright (C) 2010 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.systemui.statusbar.policy;
import java.util.ArrayList;
import android.content.BroadcastReceiver;
import android.graphics.Color;
import android.text.Spannable;
import android.text.SpannableStringBuilder;
import android.text.style.RelativeSizeSpan;
import android.text.style.CharacterStyle;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.database.ContentObserver;
import android.os.BatteryManager;
import android.os.Handler;
import android.provider.Settings;
import android.util.AttributeSet;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import com.android.systemui.R;
public class BatteryController extends LinearLayout {
private static final String TAG = "StatusBar.BatteryController";
private Context mContext;
private ArrayList<ImageView> mIconViews = new ArrayList<ImageView>();
private ArrayList<TextView> mLabelViews = new ArrayList<TextView>();
private ImageView mBatteryIcon;
private TextView mBatteryText;
private TextView mBatteryCenterText;
private ViewGroup mBatteryGroup;
private TextView mBatteryTextOnly;
private static int mBatteryStyle;
private int mLevel = -1;
private boolean mPlugged = false;
public static final int STYLE_ICON_ONLY = 0;
public static final int STYLE_TEXT_ONLY = 1;
public static final int STYLE_ICON_TEXT = 2;
public static final int STYLE_ICON_CENTERED_TEXT = 3;
public static final int STYLE_ICON_CIRCLE = 4;
public static final int STYLE_HIDE = 5;
public BatteryController(Context context, AttributeSet attrs) {
super(context, attrs);
mContext = context;
}
@Override
protected void onAttachedToWindow() {
super.onAttachedToWindow();
init();
mBatteryGroup = (ViewGroup) findViewById(R.id.battery_combo);
mBatteryIcon = (ImageView) findViewById(R.id.battery);
mBatteryText = (TextView) findViewById(R.id.battery_text);
mBatteryCenterText = (TextView) findViewById(R.id.battery_text_center);
mBatteryTextOnly = (TextView) findViewById(R.id.battery_text_only);
addIconView(mBatteryIcon);
SettingsObserver settingsObserver = new SettingsObserver(new Handler());
settingsObserver.observe();
updateSettings(); // to initialize values
}
private void init() {
IntentFilter filter = new IntentFilter();
filter.addAction(Intent.ACTION_BATTERY_CHANGED);
mContext.registerReceiver(mBatteryBroadcastReceiver, filter);
}
public void addIconView(ImageView v) {
mIconViews.add(v);
}
public void addLabelView(TextView v) {
mLabelViews.add(v);
}
private BroadcastReceiver mBatteryBroadcastReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
final String action = intent.getAction();
if (action.equals(Intent.ACTION_BATTERY_CHANGED)) {
final int level = intent.getIntExtra(
BatteryManager.EXTRA_LEVEL, 0);
final boolean plugged = intent.getIntExtra(
BatteryManager.EXTRA_PLUGGED, 0) != 0;
setBatteryIcon(level, plugged);
}
}
};
private void setBatteryIcon(int level, boolean plugged) {
mLevel = level;
mPlugged = plugged;
ContentResolver cr = mContext.getContentResolver();
mBatteryStyle = Settings.System.getInt(cr,
Settings.System.STATUSBAR_BATTERY_ICON, 0);
int icon;
if (mBatteryStyle == STYLE_ICON_CIRCLE) {
icon = plugged ? R.drawable.stat_sys_battery_charge_circle
: R.drawable.stat_sys_battery_circle;
} else {
icon = plugged ? R.drawable.stat_sys_battery_charge
: R.drawable.stat_sys_battery;
}
int N = mIconViews.size();
for (int i = 0; i < N; i++) {
ImageView v = mIconViews.get(i);
v.setImageResource(icon);
v.setImageLevel(level);
v.setContentDescription(mContext.getString(
R.string.accessibility_battery_level, level));
}
N = mLabelViews.size();
for (int i = 0; i < N; i++) {
TextView v = mLabelViews.get(i);
v.setText(mContext.getString(
R.string.status_bar_settings_battery_meter_format, level));
}
// do my stuff here
if (mBatteryGroup != null) {
mBatteryText.setText(Integer.toString(level));
mBatteryCenterText.setText(Integer.toString(level));
mBatteryTextOnly.setText(Integer.toString(level));
SpannableStringBuilder formatted = new SpannableStringBuilder(
Integer.toString(level) + "%");
CharacterStyle style = new RelativeSizeSpan(0.7f); // beautiful
// formatting
if (level < 10) { // level < 10, 2nd char is %
formatted.setSpan(style, 1, 2,
Spannable.SPAN_EXCLUSIVE_INCLUSIVE);
} else if (level < 100) { // level 10-99, 3rd char is %
formatted.setSpan(style, 2, 3,
Spannable.SPAN_EXCLUSIVE_INCLUSIVE);
} else { // level 100, 4th char is %
formatted.setSpan(style, 3, 4,
Spannable.SPAN_EXCLUSIVE_INCLUSIVE);
}
mBatteryTextOnly.setText(formatted);
if (plugged) { // colors hardcoded by now, maybe colorpicker can be
// added if needed
mBatteryTextOnly.setTextColor(Color.GREEN);
} else if (level < 16) {
mBatteryTextOnly.setTextColor(Color.RED);
} else {
mBatteryTextOnly.setTextColor(0xFF33B5E5);
}
}
}
class SettingsObserver extends ContentObserver {
SettingsObserver(Handler handler) {
super(handler);
}
void observe() {
ContentResolver resolver = mContext.getContentResolver();
resolver.registerContentObserver(Settings.System
.getUriFor(Settings.System.STATUSBAR_BATTERY_ICON), false,
this);
}
@Override
public void onChange(boolean selfChange) {
updateSettings();
}
}
private void updateSettings() {
// Slog.i(TAG, "updated settings values");
ContentResolver cr = mContext.getContentResolver();
mBatteryStyle = Settings.System.getInt(cr,
Settings.System.STATUSBAR_BATTERY_ICON, 0);
switch (mBatteryStyle) {
case STYLE_ICON_ONLY:
mBatteryCenterText.setVisibility(View.GONE);
mBatteryText.setVisibility(View.GONE);
mBatteryIcon.setVisibility(View.VISIBLE);
mBatteryTextOnly.setVisibility(View.GONE);
setVisibility(View.VISIBLE);
break;
case STYLE_TEXT_ONLY:
mBatteryText.setVisibility(View.GONE);
mBatteryCenterText.setVisibility(View.GONE);
mBatteryIcon.setVisibility(View.GONE);
mBatteryTextOnly.setVisibility(View.VISIBLE);
setVisibility(View.VISIBLE);
break;
case STYLE_ICON_TEXT:
mBatteryText.setVisibility(View.VISIBLE);
mBatteryCenterText.setVisibility(View.GONE);
mBatteryIcon.setVisibility(View.VISIBLE);
mBatteryTextOnly.setVisibility(View.GONE);
setVisibility(View.VISIBLE);
break;
case STYLE_ICON_CENTERED_TEXT:
mBatteryText.setVisibility(View.GONE);
mBatteryCenterText.setVisibility(View.VISIBLE);
mBatteryIcon.setVisibility(View.VISIBLE);
mBatteryTextOnly.setVisibility(View.GONE);
setVisibility(View.VISIBLE);
break;
case STYLE_HIDE:
mBatteryText.setVisibility(View.GONE);
mBatteryCenterText.setVisibility(View.GONE);
mBatteryIcon.setVisibility(View.GONE);
mBatteryTextOnly.setVisibility(View.GONE);
setVisibility(View.GONE);
break;
case STYLE_ICON_CIRCLE:
mBatteryText.setVisibility(View.GONE);
mBatteryCenterText.setVisibility(View.GONE);
mBatteryIcon.setVisibility(View.VISIBLE);
mBatteryTextOnly.setVisibility(View.GONE);
setVisibility(View.VISIBLE);
break;
default:
mBatteryText.setVisibility(View.GONE);
mBatteryCenterText.setVisibility(View.GONE);
mBatteryIcon.setVisibility(View.VISIBLE);
mBatteryTextOnly.setVisibility(View.GONE);
setVisibility(View.VISIBLE);
break;
}
setBatteryIcon(mLevel, mPlugged);
}
}