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1 parent e1b9d83 commit 7b06da2

13 files changed

+383
-360
lines changed

‎PluginCore/src/com/plugin/core/PluginClassLoader.java

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@@ -4,7 +4,6 @@
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import java.util.concurrent.LinkedBlockingQueue;
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import com.plugin.content.PluginProviderInfo;
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import com.plugin.core.ui.stub.PluginStubReceiver;
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import com.plugin.util.LogUtil;
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import dalvik.system.DexClassLoader;
@@ -33,6 +32,12 @@ public PluginClassLoader(String dexPath, String optimizedDirectory, String libra
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super(dexPath, optimizedDirectory, libraryPath, parent);
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}
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@Override
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public String findLibrary(String name) {
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LogUtil.d("findLibrary", name);
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return super.findLibrary(name);
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}
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@Override
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protected Class<?> loadClass(String className, boolean resolve) throws ClassNotFoundException {
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‎PluginCore/src/com/plugin/core/PluginCompat.java

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package com.plugin.core;
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import com.plugin.content.PluginDescriptor;
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import com.plugin.util.LogUtil;
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import android.content.Context;
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import android.os.Build;

‎PluginCore/src/com/plugin/core/PluginContentProviderInstaller.java

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This file was deleted.

‎PluginCore/src/com/plugin/core/PluginInjector.java

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@@ -0,0 +1,192 @@
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package com.plugin.core;
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import android.annotation.TargetApi;
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import android.app.Activity;
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import android.app.Application;
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import android.app.Instrumentation;
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import android.content.Context;
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import android.content.ContextWrapper;
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import android.content.Intent;
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import android.content.pm.ActivityInfo;
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import android.content.pm.ProviderInfo;
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import android.os.Build;
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import android.os.Handler;
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import android.view.ContextThemeWrapper;
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import android.view.LayoutInflater;
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import com.plugin.content.PluginProviderInfo;
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import com.plugin.core.ui.PluginNormalFragmentActivity;
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import com.plugin.core.ui.stub.PluginStubActivity;
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import com.plugin.util.ClassLoaderUtil;
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import com.plugin.util.FragmentHelper;
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import com.plugin.util.LogUtil;
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import com.plugin.util.RefInvoker;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.List;
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public class PluginInjector {
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private static final String android_app_ActivityThread = "android.app.ActivityThread";
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private static final String android_app_ActivityThread_currentActivityThread = "currentActivityThread";
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private static final String android_app_ActivityThread_mInstrumentation = "mInstrumentation";
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private static final String android_app_ActivityThread_getHandler = "getHandler";
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private static final String android_app_ActivityThread_installContentProviders = "installContentProviders";
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private static final String android_content_ContextWrapper_mBase = "mBase";
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private static final String android_os_Handler_mCallback = "mCallback";
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private static final String android_app_Activity_mInstrumentation = "mInstrumentation";
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private static final String android_app_Activity_mActivityInfo = "mActivityInfo";
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private static final String android_content_ContextThemeWrapper_attachBaseContext = "attachBaseContext";
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private static final String android_content_ContextThemeWrapper_mResources = "mResources";
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private static final String android_content_ContextThemeWrapper_mTheme = "mTheme";
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/**
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* 替换宿主程序Application对象的mBase是为了修改它的几个StartActivity、
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* StartService和SendBroadcast方法
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*/
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static void injectBaseContext(Application application) {
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LogUtil.d("替换宿主程序Application对象的mBase");
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Context base = (Context)RefInvoker.getFieldObject(application, ContextWrapper.class.getName(),
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android_content_ContextWrapper_mBase);
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Context newBase = new PluginBaseContextWrapper(base);
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RefInvoker.setFieldObject(application, ContextWrapper.class.getName(),
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android_content_ContextWrapper_mBase, newBase);
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}
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static Object getActivityThread() {
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// 从ThreadLocal中取出来的
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LogUtil.d("从宿主程序中取出ActivityThread对象备用");
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Object activityThread = RefInvoker.invokeStaticMethod(android_app_ActivityThread,
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android_app_ActivityThread_currentActivityThread,
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(Class[]) null, (Object[]) null);
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return activityThread;
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}
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/**
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* 注入Instrumentation主要是为了支持Activity
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*/
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static void injectInstrumentation(Object activityThread) {
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// 给Instrumentation添加一层代理，用来实现隐藏api的调用
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LogUtil.d("替换宿主程序Intstrumentation");
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Instrumentation originalInstrumentation = (Instrumentation) RefInvoker.getFieldObject(activityThread,
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android_app_ActivityThread, android_app_ActivityThread_mInstrumentation);
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RefInvoker.setFieldObject(activityThread, android_app_ActivityThread,
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android_app_ActivityThread_mInstrumentation,
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new PluginInstrumentionWrapper(originalInstrumentation));
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}
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static void injectHandlerCallback(Object activityThread) {
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LogUtil.d("向插入宿主程序消息循环插入回调器");
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Handler handler = (Handler) RefInvoker.invokeMethod(activityThread,
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android_app_ActivityThread, android_app_ActivityThread_getHandler,
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(Class[]) null, (Object[]) null);
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RefInvoker.setFieldObject(handler, Handler.class.getName(), android_os_Handler_mCallback,
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new PluginAppTrace(handler));
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}
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static void installContentProviders(Context context, Collection<PluginProviderInfo> pluginProviderInfos) {
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LogUtil.d("安装插件ContentProvider", pluginProviderInfos.size());
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Object activityThread = PluginInjector.getActivityThread();
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if (activityThread != null) {
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ClassLoaderUtil.hackClassLoaderIfNeeded();
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List<ProviderInfo> providers = new ArrayList<ProviderInfo>();
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for (PluginProviderInfo pluginProviderInfo : pluginProviderInfos) {
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ProviderInfo p = new ProviderInfo();
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p.name = pluginProviderInfo.getName();
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p.authority = pluginProviderInfo.getAuthority();
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p.applicationInfo = context.getApplicationInfo();
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p.exported = pluginProviderInfo.isExported();
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p.packageName = context.getApplicationInfo().packageName;
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providers.add(p);
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}
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RefInvoker.invokeMethod(activityThread,
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android_app_ActivityThread, android_app_ActivityThread_installContentProviders,
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new Class[]{Context.class, List.class}, new Object[]{context, providers});
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}
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}
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static void injectInstrumetionFor360Safe(Activity activity, Instrumentation pluginInstrumentation) {
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// 检查mInstrumention是否已经替换成功。
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// 之所以要检查，是因为如果手机上安装了360手机卫士等app，它们可能会劫持用户app的ActivityThread对象，
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// 导致在PluginApplication的onCreate方法里面替换mInstrumention可能会失败
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// 所以这里再做一次检查
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Instrumentation instrumention = (Instrumentation) RefInvoker.getFieldObject(activity, Activity.class.getName(),
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android_app_Activity_mInstrumentation);
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if (!(instrumention instanceof PluginInstrumentionWrapper)) {
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// 说明被360还原了，这里再次尝试替换
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RefInvoker.setFieldObject(activity, Activity.class.getName(), android_app_Activity_mInstrumentation, pluginInstrumentation);
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}
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}
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@TargetApi(Build.VERSION_CODES.HONEYCOMB)
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static void injectActivityContext(Activity activity) {
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Intent intent = activity.getIntent();
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// 如果是打开插件中的activity
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if (intent.getComponent() != null
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&& (intent.getComponent().getClassName().equals(PluginStubActivity.class.getName()) || intent
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.getComponent().getClassName().equals(PluginNormalFragmentActivity.class.getName()))) {
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// 为了不需要重写插件Activity的attachBaseContext方法为：
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// @Override
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// protected void attachBaseContext(Context newBase) {
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// super.attachBaseContext(PluginLoader.getDefaultPluginContext(PluginNotInManifestActivity.class));
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// }
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// 我们在activityoncreate之前去完成attachBaseContext的事情
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Context pluginContext = null;
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if (activity.getClass().getName().equals(PluginNormalFragmentActivity.class.getName())) {
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// 为了能够在宿主中的Activiy里面展示来自插件的普通Fragment，
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// 我们将宿主程序中用来展示插件普通Fragment的Activity的Context也替换掉
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String classId = activity.getIntent().getStringExtra(FragmentHelper.FRAGMENT_ID_IN_PLUGIN);
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@SuppressWarnings("rawtypes")
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Class clazz = PluginLoader.loadPluginFragmentClassById(classId);
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pluginContext = PluginLoader.getNewPluginContext(clazz);
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} else {
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pluginContext = PluginLoader.getNewPluginContext(activity.getClass());
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}
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// 重设BaseContext
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RefInvoker.setFieldObject(activity, ContextWrapper.class.getName(), android_content_ContextWrapper_mBase, null);
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RefInvoker.invokeMethod(activity, ContextThemeWrapper.class.getName(), android_content_ContextThemeWrapper_attachBaseContext,
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new Class[]{Context.class }, new Object[] { pluginContext });
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// 重设LayoutInflater
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LogUtil.d(activity.getWindow().getClass().getName());
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RefInvoker.setFieldObject(activity.getWindow(), activity.getWindow().getClass().getName(),
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"mLayoutInflater", LayoutInflater.from(pluginContext));
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// 如果api>=11,还要重设factory2
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if (Build.VERSION.SDK_INT >= 11) {
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RefInvoker.invokeMethod(activity.getWindow().getLayoutInflater(), LayoutInflater.class.getName(),
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"setPrivateFactory", new Class[] { LayoutInflater.Factory2.class }, new Object[] { activity });
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}
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// 由于在attach的时候Resource已经被初始化了，所以还需要重置Resource
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RefInvoker.setFieldObject(activity, ContextThemeWrapper.class.getName(), android_content_ContextThemeWrapper_mResources, null);
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// 重设theme
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ActivityInfo activityInfo = (ActivityInfo) RefInvoker.getFieldObject(activity, Activity.class.getName(),
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android_app_Activity_mActivityInfo);
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int theme = activityInfo.getThemeResource();
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if (theme != 0) {
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RefInvoker.setFieldObject(activity, ContextThemeWrapper.class.getName(), android_content_ContextThemeWrapper_mTheme, null);
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activity.setTheme(theme);
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}
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} else {
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// 如果是打开宿主程序的activity，注入一个无害的Context，用来在宿主程序中startService和sendBroadcast时检查打开的对象是否是插件中的对象
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// 插入Context
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Context mainContext = new PluginBaseContextWrapper(activity.getBaseContext());
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RefInvoker.setFieldObject(activity, ContextWrapper.class.getName(), android_content_ContextWrapper_mBase, null);
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RefInvoker.invokeMethod(activity, ContextThemeWrapper.class.getName(), android_content_ContextThemeWrapper_attachBaseContext,
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new Class[]{Context.class }, new Object[] { mainContext });
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}
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}
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}

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