Android应用的Crash闪退捕获

package com.ym.testproject.utils.ymcrash.hook; import java.lang.reflect.Field; import java.lang.reflect.Method; import android.os.Handler; import android.os.Looper; import com.ym.testproject.utils.ymcrash.handler.ExceptionDispatcher; public class AndroidHookHandler implements AndroidHookListener { private volatile boolean isHooked; private ExceptionDispatcher mExceptionDispatcher; private Handler.Callback mOriginCallback; public AndroidHookHandler(ExceptionDispatcher exceptionDispatcher) { mExceptionDispatcher = exceptionDispatcher; } @Override public void onHook() { if (isHooked()) { return; } try { Class<?> activityThreadClass = Class.forName("android.app.ActivityThread"); Method currentActivityThreadMethod = activityThreadClass.getDeclaredMethod("currentActivityThread"); currentActivityThreadMethod.setAccessible(true); Object currentActivityThread = currentActivityThreadMethod.invoke(null); Field mHField = activityThreadClass.getDeclaredField("mH"); mHField.setAccessible(true); Handler handler = (Handler) mHField.get(currentActivityThread); Field callbackField = Handler.class.getDeclaredField("mCallback"); callbackField.setAccessible(true); mOriginCallback = (Handler.Callback) callbackField.get(handler); Handler.Callback fakeCallback = msg -> { try { if (mOriginCallback != null) { if (!mOriginCallback.handleMessage(msg)) handler.handleMessage(msg); } else { handler.handleMessage(msg); } } catch (Throwable e) { mExceptionDispatcher.uncaughtExceptionHappened(Looper.getMainLooper().getThread(), e); } return true; }; callbackField.set(handler, fakeCallback); synchronized (this) { isHooked = true; } } catch (Throwable ignored) { ignored.printStackTrace(); synchronized (this) { isHooked = false; } } } @Override public void unHook() { if (!isHooked()) { return; } try { Class<?> activityThreadClass = Class.forName("android.app.ActivityThread"); Method currentActivityThreadMethod = activityThreadClass.getDeclaredMethod("currentActivityThread"); currentActivityThreadMethod.setAccessible(true); Object currentActivityThread = currentActivityThreadMethod.invoke(null); Field mHandlerField = activityThreadClass.getDeclaredField("mH"); mHandlerField.setAccessible(true); Handler handler = (Handler) mHandlerField.get(currentActivityThread); Field callbackField = Handler.class.getDeclaredField("mCallback"); callbackField.setAccessible(true); callbackField.set(handler, mOriginCallback); synchronized (this) { isHooked = false; } } catch (Throwable ignored) { ignored.printStackTrace(); synchronized (this) { isHooked = true; } } } @Override public boolean isHooked() { return isHooked; } }