需求

屏蔽系统的crash和anr弹窗

原理

在frameworks/base/services/core/java/com/android/server/am/AppErrors.java的handleShowAppErrorUi方法中做是否屏蔽判断mSystemConfiguration.hideCrashWindow() , 以及ActivityTaskManagerService.java的mShowDialogs属性

实现

frameworks/base/services/core/java/com/android/server/am/AppErrors.java

void handleShowAppErrorUi(Message msg) {
        AppErrorDialog.Data data = (AppErrorDialog.Data) msg.obj;

        .......

        
        if ((mService.mAtmInternal.canShowErrorDialogs() || showBackground)
                        && !crashSilenced && !shouldThottle
                        && (showFirstCrash || showFirstCrashDevOption || data.repeating)
                        && !mSystemConfiguration.hideCrashWindow()) {
                    Slog.i(TAG, "Showin