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/*
* Copyright (C) 2013 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;
import android.app.Activity;
import android.content.DialogInterface;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.os.SystemProperties;
import android.text.TextUtils;
import android.view.Gravity;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;
import androidx.annotation.VisibleForTesting;
import androidx.appcompat.app.AlertDialog;
import java.util.Locale;
/**
* {@link Activity} that displays regulatory information for the "Regulatory information"
* preference item, and when "*#07#" is dialed on the Phone keypad. To enable this feature,
* set the "config_show_regulatory_info" boolean to true in a device overlay resource, and in the
* same overlay, either add a drawable named "regulatory_info.png" containing a graphical version
* of the required regulatory info (If ro.bootloader.hardware.sku property is set use
* "regulatory_info_<sku>.png where sku is ro.bootloader.hardware.sku property value in lowercase"),
* or add a string resource named "regulatory_info_text" with an HTML version of the required
* information (text will be centered in the dialog).
*/
public class RegulatoryInfoDisplayActivity extends Activity implements
DialogInterface.OnDismissListener {
private final String REGULATORY_INFO_RESOURCE = "regulatory_info";
private static final String DEFAULT_REGULATORY_INFO_FILEPATH =
"/data/misc/elabel/regulatory_info.png";
private static final String REGULATORY_INFO_FILEPATH_TEMPLATE =
"/data/misc/elabel/regulatory_info_%s.png";
/**
* Display the regulatory info graphic in a dialog window.
*/
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
AlertDialog.Builder builder = new AlertDialog.Builder(this)
.setTitle(R.string.regulatory_labels)
.setOnDismissListener(this);
boolean regulatoryInfoDrawableExists = false;
final String regulatoryInfoFile = getRegulatoryInfoImageFileName();
final Bitmap regulatoryInfoBitmap = BitmapFactory.decodeFile(regulatoryInfoFile);
if (regulatoryInfoBitmap != null) {
regulatoryInfoDrawableExists = true;
}
int resId = 0;
if (!regulatoryInfoDrawableExists) {
resId = getResourceId();
}
if (resId != 0) {
try {
Drawable d = getDrawable(resId);
// set to false if the width or height is <= 2
// (missing PNG can return an empty 2x2 pixel Drawable)
regulatoryInfoDrawableExists = (d.getIntrinsicWidth() > 2
&& d.getIntrinsicHeight() > 2);
} catch (Resources.NotFoundException ignored) {
regulatoryInfoDrawableExists = false;
}
}
CharSequence regulatoryText = getResources()
.getText(R.string.regulatory_info_text);
if (regulatoryInfoDrawableExists) {
View view = getLayoutInflater().inflate(R.layout.regulatory_info, null);
ImageView image = view.findViewById(R.id.regulatoryInfo);
if (regulatoryInfoBitmap != null) {
image.setImageBitmap(regulatoryInfoBitmap);
} else {
image.setImageResource(resId);
}
builder.setView(view);
builder.show();
} else if (regulatoryText.length() > 0) {
builder.setMessage(regulatoryText);
AlertDialog dialog = builder.show();
// we have to show the dialog first, or the setGravity() call will throw a NPE
TextView messageText = (TextView) dialog.findViewById(android.R.id.message);
messageText.setGravity(Gravity.CENTER);
} else {
// neither drawable nor text resource exists, finish activity
finish();
}
}
@VisibleForTesting
int getResourceId() {
// Use regulatory_info by default.
int resId = getResources().getIdentifier(
REGULATORY_INFO_RESOURCE, "drawable", getPackageName());
// When hardware sku property exists, use regulatory_info_<sku> resource if valid.
final String sku = getSku();
if (!TextUtils.isEmpty(sku)) {
String regulatory_info_res = REGULATORY_INFO_RESOURCE + "_" + sku.toLowerCase();
int id = getResources().getIdentifier(
regulatory_info_res, "drawable", getPackageName());
if (id != 0) {
resId = id;
}
}
// When hardware coo property exists, use regulatory_info_<sku>_<coo> resource if valid.
final String coo = getCoo();
if (!TextUtils.isEmpty(coo) && !TextUtils.isEmpty(sku)) {
final String regulatory_info_coo_res =
REGULATORY_INFO_RESOURCE + "_" + sku.toLowerCase() + "_" + coo.toLowerCase();
final int id = getResources().getIdentifier(
regulatory_info_coo_res, "drawable", getPackageName());
if (id != 0) {
resId = id;
}
}
return resId;
}
@Override
public void onDismiss(DialogInterface dialog) {
finish(); // close the activity
}
private String getCoo() {
return SystemProperties.get("ro.boot.hardware.coo", "");
}
private String getSku() {
return SystemProperties.get("ro.boot.hardware.sku", "");
}
private String getRegulatoryInfoImageFileName() {
final String sku = getSku();
if (TextUtils.isEmpty(sku)) {
return DEFAULT_REGULATORY_INFO_FILEPATH;
} else {
return String.format(Locale.US, REGULATORY_INFO_FILEPATH_TEMPLATE,
sku.toLowerCase());
}
}
}
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