1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.settings; 18 19 import android.app.Activity; 20 import android.content.ActivityNotFoundException; 21 import android.content.Intent; 22 import android.content.res.Resources; 23 import android.net.Uri; 24 import android.os.Bundle; 25 import android.util.Log; 26 import android.widget.Toast; 27 28 import java.io.File; 29 30 /** 31 * The "dialog" that shows from "Manual" in the Settings app. 32 */ 33 public class ManualDisplayActivity extends Activity { 34 private static final String TAG = "SettingsManualActivity"; 35 36 private static final String MANUAL_PATH = "/system/etc/MANUAL.html.gz"; 37 38 @Override onCreate(Bundle savedInstanceState)39 protected void onCreate(Bundle savedInstanceState) { 40 super.onCreate(savedInstanceState); 41 Resources resources = getResources(); 42 43 if (!resources.getBoolean(R.bool.config_show_manual)) { 44 finish(); // No manual to display for this device 45 } 46 47 final File file = new File(MANUAL_PATH); 48 if (!file.exists() || file.length() == 0) { 49 Log.e(TAG, "Manual file " + MANUAL_PATH + " does not exist"); 50 showErrorAndFinish(); 51 return; 52 } 53 54 final Intent intent = new Intent(Intent.ACTION_VIEW); 55 intent.setDataAndType(Uri.fromFile(file), "text/html"); 56 57 intent.putExtra(Intent.EXTRA_TITLE, getString(R.string.settings_manual_activity_title)); 58 intent.addCategory(Intent.CATEGORY_DEFAULT); 59 intent.setPackage("com.android.htmlviewer"); 60 61 try { 62 startActivity(intent); 63 finish(); 64 } catch (ActivityNotFoundException e) { 65 Log.e(TAG, "Failed to find viewer", e); 66 showErrorAndFinish(); 67 } 68 } 69 showErrorAndFinish()70 private void showErrorAndFinish() { 71 Toast.makeText(this, R.string.settings_manual_activity_unavailable, Toast.LENGTH_LONG) 72 .show(); 73 finish(); 74 } 75 } 76