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记录下今天遇到的一个bug。

CustomerExceptionHandler:pool-8-thread-5java.lang.RuntimeException: Package manager has diedE/hp      (13562):  at android.app.ApplicationPackageManager.getInstalledPackages(ApplicationPackageManager.java:464)E/hp      (13562):  at android.app.ApplicationPackageManager.getInstalledPackages(ApplicationPackageManager.java:454)E/hp      (13562):  at com.handpay.zztong.hp.utils.Util.getAppInstalled(Util.java:34)E/hp      (13562):  at com.handpay.zztong.hp.NewMainActivity1$1.run(NewMainActivity1.java:134)E/hp   (13562):     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)E/hp      (13562):  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)E/hp      (13562):  at java.lang.Thread.run(Thread.java:841)E/hp      (13562): Caused by: android.os.TransactionTooLargeExceptionE/hp      (13562):  at android.os.BinderProxy.transact(Native Method)E/hp      (13562):  at android.content.pm.IPackageManager$Stub$Proxy.getInstalledPackages(IPackageManager.java:2528)E/hp      (13562):  at android.app.ApplicationPackageManager.getInstalledPackages(ApplicationPackageManager.java:461)

在activity中有线程去获取手机安装的app应用，结果在某些手机上退出重新进入会出现 Package manager has died错误。

从frameworks/native/libs/binder/ProcessState.cpp中得知一个进程的Binder的内存限制为（大约1M）

#define BINDER_VM_SIZE ((1*1024*1024) - (4096 *2))

解决方案：

executorService.execute(new Runnable() {            @Override            public void run() {                // TODO Auto-generated method stub                synchronized(NewMainActivity1.class) {                    List
   
     pks = Util.getAppInstalled(NewMainActivity1.this);                }            }        });
   

在调用前加synchronized同步锁 避免多个线程同时来调用Binder导致crash。

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