ViewModelProvider.AndroidViewModelFactory.getInstance(getApplication())). get(xxxViewModel .class) 发现还是创建失败 然后检查发现xxxViewModel 的构造函数有一行因为别的地方修改后报错,但是没捕获异常,修复之后就好了。
、Receiver中判断一个应用是否正在运行，以便进行一些相关的处理。 这个时候我们需要得到一个ActivityManager，这个Manager顾名思意就是管理Activity的，它有一个方法叫getRunningTasks，可以得到当前系统正在运行的Task的列表，代码如下： ActivityManager am = (ActivityManager)context.getSystemService(Context.
Caused by: java.lang.RuntimeException: Cannot create an instance of class com.example.jetpack.ui.lifecycles.SavedStateViewModel at androidx.lifecycle.ViewModelProvider$NewInstanceFactory.create(ViewModelProvider.java:221) at androidx.lifecycle.ViewModelProvider$AndroidViewModelFactory.create(ViewModelProvider.jav...
public <T extends ViewModel> T create(@NonNull Class<T> modelClass) { try { //反射创建 return modelClass.newInstance(); } catch (InstantiationException e) { throw new RuntimeException("Cannot create an instance of " + modelClass, e); } catch (IllegalAccessException e) { throw new Runt...
* installed as part of an application. * * This class loader requires an application-private, writable directory to * cache optimized classes. Use {@code Context.getDir(String, int)} to create * such a directory: 代码语言:javascript
Android Bluetooth Android 4.4上蓝牙协议栈采用的是BRCM和Google共同开发的bluedroid,代替了之前的Bluez. 一、 Bluetooth 源码分布 (基于Android 4.4 ) 1. packages/apps/Settings/src/com/android/settings/bluetooth bluetooth Settings 代码 2. packages/apps/Bluetooth ...
session->isClosed()) { ALOGE("%s: cannot open an already opened camera!", __FUNCTION__); mLock.unlock(); _hidl_cb(Status::CAMERA_IN_USE, nullptr); return Void(); } /** Open HAL device */ status_t res; camera3_device_t *device; ATRACE_BEGIN("camera3->open"); res = m...
using AndroidX.Fragment.App; [Activity(Label = "PlayQuoteActivity")] public class PlayQuoteActivity : FragmentActivity { protected override void OnCreate(Bundle savedInstanceState) { base.OnCreate(savedInstanceState); var playId = Intent.Extras.GetInt("current_play_id", 0); var detailsFrag...
*/ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); try { process = Runtime.getRuntime().exec("/system/xbin/su"); /*这里可能需要修改su 的源代码 (注掉 if (myuid != AID_ROOT && myuid != AID_SHELL) {*...
If a Chrome process running on the device under test fails to create a connection to the devtools socket, then the chromedriver will rise an error similar to failed to connect to socket 'localabstract:chrome_devtools_remote' in UiAutomator2 driver. It could cause no WebViews found result, ...