[英]Android/Kotlin - get old Activity when resume app after close
My problem is: 我的问题是:
I close Activity using finish()
, it goes to onPause -> onStop -> onDestroy . 我使用
finish()
关闭Activity,它转到onPause-> onStop-> onDestroy 。 Next I open app, onCreate()
gets old references to all views and context
. 接下来,我打开应用程序,
onCreate()
获取所有视图和context
旧引用。
When I try show simple dialog it throws: 当我尝试显示简单对话框时,它抛出:
"Unable to add window -- token android.os.BinderProxy@69a156a is not valid; is your activity running?"
“无法添加窗口-令牌android.os.BinderProxy@69a156a无效;您的活动正在运行吗?”
I also cannot access text view 我也无法访问文本视图
progressText?.text = message
progressText?.text =消息
it gets old reference - i used clearFindViewByIdCache() -- but no effect. 它得到了旧的参考-我使用了clearFindViewByIdCache()-但没有效果。
What's wrong? 怎么了?
EDIT 编辑
I try to manipulate views from DataSyncListener methods runOnUiThread 我尝试从DataSyncListener方法runOnUiThread处理视图
class MainActivity : AppCompatActivity(), DataSyncListener {
override fun onSuccess() {
runOnUiThread {
refreshLayout?.isRefreshing = false // it DO NOT works after reopen app,
syncProgressText?.visibility = View.GONE // it DO NOT works after reopen app,
}
}
override fun onFailure() {
runOnUiThread {
refreshLayout?.isRefreshing = false // it DO NOT works after reopen app,
syncProgressText?.visibility = View.GONE // it DO NOT works after reopen app,
}
}
override fun onError(message: String) {
Logger.d(message)
runOnUiThread {
refreshLayout?.isRefreshing = false // it DO NOT works after reopen app
syncProgressText?.visibility = View.GONE // it DO NOT works after reopen app
displayInfoAlertWithConfirm(this@MainActivity, message, DialogInterface.OnClickListener { _, _ -> // it DO NOT works after reopen app, throws Unable to add window
refreshLayout?.isRefreshing = true // it DO NOT works after reopen app
syncProgressText?.visibility = View.VISIBLE // it DO NOT works after reopen app
})
}
}
override fun onProgress(message: String) {
runOnUiThread {
syncProgressText?.text = message // it DO NOT works after reopen app
}
}
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
setSupportActionBar(toolbar)
refreshLayout.setOnRefreshListener({
// it DO NOT works after reopen app,
synchronizeData()
})
synchronizeData()
syncProgressText?.text = "test" // it works after reopen app
}
override fun onPostCreate(savedInstanceState: Bundle?, persistentState: PersistableBundle?) {
super.onPostCreate(savedInstanceState, persistentState)
actionBarDrawerToggle?.syncState()
}
fun synchronizeData() {
refreshLayout?.isRefreshing = true
dataSynchronizer = DataSynchronizer.getInstance(application as MyApplication?, this)
dataSynchronizer?.startSync() // background featch data
syncProgressText?.visibility = View.VISIBLE // it DO NOT works after reopen app
}
override fun onDestroy() {
super.onDestroy()
dataSynchronizer?.stopSync() // kill background task
clearFindViewByIdCache() // no effect
}
} }
EDIT2 编辑2
FIXED - DataSynchronizer was not GC and hold old references 修复 -DataSynchronizer不是GC并保留旧的引用
使用syncProgressText.setText(message),syncProgressText.text期望可编辑,而不是字符串。
Finally fixed . 终于修复了 。 Thanks @Viktor, after checked my DataSynchronizer.getInstance(application as MyApplication?, this) I realized that DataSynchronizer was not GC -- memory leaks.
感谢@Viktor,在检查了我的DataSynchronizer.getInstance(application as MyApplication ?, this)之后,我意识到DataSynchronizer不是GC-内存泄漏。 So it holded old refrerences.
因此它拥有旧的参考文献。 Now it works like a charm.
现在,它就像一种魅力。
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