Click on "Open" when Android installs the app and solve the problem

Mainactivity as follows:

Package Cc.cc;import android.app.activity;import Android.content.intent;import android.os.bundle;/** * Demo Description: * * More than a year ago encountered a problem---;: * 1 customers downloaded from GooglePlay I participate in the development of the application * 2 after the download is complete, click Install * 3 after the installation is complete, at the bottom of the screen there are two options "open" and "Done" * 4 Click Open * 5 app into the first Activ ity, at this time simple operation: For example, enter the text on a edittext * 6 Press the Home button * 7 on the desktop to find the app's icon, click to enter the application * * problem occurred at this time, the original display in the EditText text is missing ... * It was so strange It's weird. Read log only to know that the activity has been re-executed OnCreate () and OnStart () and Onresume (). * * Customers hold on to this problem, I have been half a time will not give a reasonable explanation. What should I do? * I tested the rest of the apps on GooglePlay, and I found the same problem. So I said to the client: * This is an Android system problem, it is difficult to solve. Fortunately, the customer is not entangled in understanding, this matter also passed. * But this problem has been buried in my heart. * * * Recently, I saw a blog on csdn to talk about the problem. I went to StackOverflow to find the answer. * See the solution, but honestly, the code I did not understand. The core of this sentence: * if ((Getintent (). GetFlags () & intent.flag_activity_brought_to_front)! = 0) * I am still smattering. Not reconciled to ask a few Bo friends, there is no definite answer. * Temporarily forget, look forward to the opportunity to have a general solution. * * I'm not a writer of code, I'm just a porter of code. * FROM StackOverflow to find the code, I put it below. At the same time, the source of the data. * PS: Has been unable to use Google for the last two months, it is inconvenient for IT staff who often go to some foreign websites for information. * This may be the small sorrow of Chinese software practitioners. Are there any sensitive words in the code of foreign websites??????????? * * * Reference: * 1 http://www.atlassc.net/?p=479 * 2 http://stackoverflow.com/questions/6337217/ How-to-return-to-the-latest-launched-activity-when-re-launching-application-afte * 3 http://stackoverflow.com/ Questions/6356467/activity-stack-ordering-problem-when-launching-application-from-android-app-inst * 4/HTTP     flowercat.iteye.com/blog/380859 * 5 http://blog.csdn.net/nupt123456789/article/details/34415849 * Thank you very much * * Supplementary NOTE: * The core ideas mentioned in information 1---> * We need to judge whether the intention is to open a new task, or to use the background app to refer to the foreground. * If you want to bring the app to the foreground to end the activity directly, then the activity shown is the activity that was previously minimized. * Because the intention of clicking on the icon will place the newly activated activity at the top, the activity below the top is the activity that was previously minimized. * When you end a newly activated activity, you can show the activity that was previously minimized. * */public class Mainactivity extends Activity {@Overrideprotected void onCreate (Bundle savedinstancestate) {  Super.oncreate (savedinstancestate); if (Getintent (). GetFlags () & intent.flag_activity_brought_to_front)! = 0) { Finish (); return; }setcontentview (R.layout.main);} @Overrideprotected void OnStart () {Super.onstart (); SYSTEM.OUT.PRINTLN ("---> OnstaRT () ");} @Overrideprotected void Onresume () {super.onresume (); SYSTEM.OUT.PRINTLN ("---> Onresume ()");}}

Main.xml as follows:

<relativelayout xmlns:android= "http://schemas.android.com/apk/res/android"    xmlns:tools= "http// Schemas.android.com/tools "    android:layout_width=" match_parent "    android:layout_height=" Match_parent "     >    <edittext        android:layout_width= "130dip"        android:layout_height= "40dip"        android: Layout_centerinparent= "true"/></relativelayout>