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Issue 1581563003: [Android] Rework multidex and enable multidex for unit_tests_apk. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: fix junit tests Created 4 years, 11 months ago
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1 // Copyright 2015 The Chromium Authors. All rights reserved. 1 // Copyright 2015 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 package org.chromium.base.multidex; 5 package org.chromium.base.multidex;
6 6
7 import android.app.ActivityManager; 7 /**
8 import android.app.ActivityManager.RunningAppProcessInfo; 8 * Multidex configuration. Generated on a per-target basis.
9 import android.content.Context; 9 */
10 import android.content.pm.ApplicationInfo; 10 class ChromiumMultiDex {
11 import android.content.pm.PackageManager;
12 import android.os.Build;
13 import android.os.Process;
14 import android.support.multidex.MultiDex;
15 11
16 import org.chromium.base.Log; 12 /** Whether multidex is enabled for this target.
17 import org.chromium.base.VisibleForTesting; 13 *
18 14 * This has to be a function instead of a static final boolean s.t. the ini tial false value
19 import java.lang.reflect.InvocationTargetException; 15 * doesn't get optimized into {@link ChromiumMultiDexInstaller} at base_jav a compile time.
20 import java.lang.reflect.Method;
21
22 /**
23 * Performs multidex installation for non-isolated processes.
24 */
25 public class ChromiumMultiDex {
26
27 private static final String TAG = "base_multidex";
28
29 /**
30 * Suffix for the meta-data tag in the AndroidManifext.xml that determines w hether loading
31 * secondary dexes should be skipped for a given process name.
32 */ 16 */
33 private static final String IGNORE_MULTIDEX_KEY = ".ignore_multidex"; 17 static boolean isMultidexEnabled() {
34 18 #if defined(ENABLE_MULTIDEX)
35 /** 19 return true;
36 * Installs secondary dexes if possible/necessary. 20 #else
37 * 21 return false;
38 * Isolated processes (e.g. renderer processes) can't load secondary dex fi les on 22 #endif
39 * K and below, so we don't even try in that case.
40 *
41 * In release builds, this is a no-op because:
42 * - multidex isn't necessary in release builds because we run proguard t here and
43 * thus aren't threatening to hit the dex limit; and
44 * - calling MultiDex.install, even in the absence of secondary dexes, ca uses a
45 * significant regression in start-up time (crbug.com/525695).
46 *
47 * @param context The application context.
48 */
49 @VisibleForTesting
50 #if defined(MULTIDEX_CONFIGURATION_Debug)
51 public static void install(Context context) {
52 // TODO(jbudorick): Back out this version check once support for K & bel ow works.
53 // http://crbug.com/512357
54 if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP
55 && !shouldInstallMultiDex(context)) {
56 Log.i(TAG, "Skipping multidex installation: not needed for process." );
57 } else {
58 MultiDex.install(context);
59 Log.i(TAG, "Completed multidex installation.");
60 }
61 } 23 }
62 24
63 private static String getProcessName(Context context) {
64 try {
65 String currentProcessName = null;
66 int pid = android.os.Process.myPid();
67
68 ActivityManager manager =
69 (ActivityManager) context.getSystemService(Context.ACTIVITY_ SERVICE);
70 for (RunningAppProcessInfo processInfo : manager.getRunningAppProces ses()) {
71 if (processInfo.pid == pid) {
72 currentProcessName = processInfo.processName;
73 break;
74 }
75 }
76
77 return currentProcessName;
78 } catch (SecurityException ex) {
79 return null;
80 }
81 }
82
83 // Determines whether MultiDex should be installed for the current process. Isolated
84 // Processes should skip MultiDex as they can not actually access the files on disk.
85 // Privileged processes need ot have all of their dependencies in the MainDe x for
86 // performance reasons.
87 private static boolean shouldInstallMultiDex(Context context) {
88 try {
89 Method isIsolatedMethod =
90 android.os.Process.class.getMethod("isIsolated");
91 Object retVal = isIsolatedMethod.invoke(null);
92 if (retVal != null && retVal instanceof Boolean && ((Boolean) retVal )) {
93 return false;
94 }
95 } catch (IllegalAccessException | IllegalArgumentException
96 | InvocationTargetException | NoSuchMethodException e) {
97 // Ignore and fall back to checking the app processes.
98 }
99
100 String currentProcessName = getProcessName(context);
101 if (currentProcessName == null) return true;
102
103 PackageManager packageManager = context.getPackageManager();
104 try {
105 ApplicationInfo appInfo = packageManager.getApplicationInfo(context. getPackageName(),
106 PackageManager.GET_META_DATA);
107 if (appInfo == null || appInfo.metaData == null) return true;
108 return !appInfo.metaData.getBoolean(currentProcessName + IGNORE_MULT IDEX_KEY, false);
109 } catch (PackageManager.NameNotFoundException e) {
110 return true;
111 }
112 }
113 #else
114 public static void install(Context context) {
115 }
116 #endif
117
118 } 25 }
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