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There is an error when importing a new project
The type Java.lang.Class cannot be resolved. It is indirectly referenced from required. class files
And there is no androidx.x folder underneath the item (which contains the jar package)
Solution
Right-click your project name in Package Explorer,
Select Build Path,config build Path,
On the left
: @ com.android.dx.command.dexer.Main.main (main.java:199) at Com.android.dx.command.Main.main (main.java:103)Yes, the number of Dex file methods in your app exceeds the maximum of 65536, so simply put, the app is bursting.So let's see why this error is caused:InAndroidSystem, aAppAll of the code
How Android is developed to ensure service is not killed (Broadcast+system/app)PrefaceRecent projects to achieve such an effect: After running, to have a service is always running in the background, regardless of what the user does to ensure that the service
Intent ("Com.dbjtech.waiqin.destroy");
Sendbroadcast (Intent);
Super.ondestroy ();
}
In the Bootreceiver.[Java]View Plaincopy
Public class Bootreceiver extends Broadcastreceiver {
@Override
public void OnReceive (context context, Intent Intent) {
if (intent.getaction (). Equals ("Com.dbjtech.waiqin.destroy")) {
//todo
//write about restarting the service here
Startuploadservice (context);
}
}
}
can also be directly in the OnDestroy () StartS
How does Android monitor whether the app is uninstalled and android monitor and uninstall it?
We know that many applications will open a browser after they are uninstalled. Please tell us why they are uninstalled. How do they know?
I know many people will think of listening to uninstall broadcast
the APK was exported.—— - - - ——- - - —— - - - -- -—— —— —— - -—— - —— - -—— --—— -The following is reproduced:Issue: When we develop an Android application, we must package the application before publishing the application.As for the complete process from package to release, refer to: Android App Publishing Process--
Android app source code is an Android file browser that can be viewed by music, video, and image classification,
This project is an android file browser that supports browsing by music, pictures, and video categories. With multip
The androidapp automatically restarts after the APP is cleared in the Android background.
Recently solved an Android APP bug and found that the APP automatically restarts after it is c
When the Android App is started, the image is being loaded (source code ),
, QQ, beautiful every day and other programs, displayed an image, and then jump to the relevant interface. This function is actually very simple ....
Create two new activities, LoadingActivity and Ma
When doing a mobile phone adaptation, encountered a very strange problem, in 1080x720 's phone can display the replacement ic_launcher.png icon, but in 1920x1080 's phone display ic_ Launcher.png is still the default icon, and after checking that it does not include the default Ic_launcher.png icon throughout the project, what is the icon displayed?The first possibility of Baidu, found the same problem othe
After the customer asks the FM to unplug the headset during playback, the fm app displays a prompt box Indicating "unplug the headset and stop the Fm", and then automatically closes
Modify FMRadioService. java1. Add the following import to display the toast/// AAAAA add startImport android. widget. Toast;/// AAAAA add endPublic class FMRadioService extends Service implements FMRecorder. OnRecorderStateChang
; push message before and after reading the number is correct, the display and jump of multiple push collection is correct;4, share jump: The copy after sharing is correct, share after the jump is correct, the source of the message is correct;5, touch screen test: At the sam
bar, that is, the "running" group.N. flags | = Notification. FLAG_ONGOING_EVENT;// Indicates that the notification is not cleared after you click "clear notification" in the notification bar,// Often used with FLAG_ONGOING_EVENTN. flags | = Notification. FLAG_NO_CLEAR;PendingIntent pi = PendingIntent. getActivity (this, 0, getIntent (), 0 );N. contentIntent = pi;N. setLatestEventInfo (this, "FloatsWindow",
the review was very fast. It was also my first release.
2. Android Market: there will be fewer users than downloads, the conversion rate is not safe and high, and the review speed is good.
3. flink market: Fast review speed.
4. Application volume: the download volume is similar to that in the Apsara stack market.
5. D
Today, an automatic upgrade function is provided. However, during a real machine test, the system prompts "no application is installed ."Program".
Note: The files to be upgraded have been downloaded to the mobile phone normally, and permissions have been added.
The reason for this is that the names of the installed APK package on the mobile phone are the same,
In this paper, we introduce the content of Android to Judge app state by the way of illustration, as follows:
To understand this piece, first of all need to understand some concepts, app,process,task
1.process is the process, the concept of Linux.
2. A generic app has a U
Public void OnDestroy () {
Stopforeground (true);
Intent Intent = new Intent ("Com.dbjtech.waiqin.destroy");
Sendbroadcast (Intent);
Super.ondestroy ();
}
In the Bootreceiver.[Java]View PlainCopy
Public class Bootreceiver extends Broadcastreceiver {
@Override
public void OnReceive (context context, Intent Intent) {
if (intent.getaction (). Equals ("Com.dbjtech.waiqin.destroy")) {
//todo
//write about restarting the service here
Startuploadse
App Development is a new technology, is also an emerging industry, for schools and students are still new things, in the concept and curriculum system, we do not have much understanding, many just start to learn Android app development students feel
Recently, Livecoding.tv, an online real-time communication platform for programmers around the world, posted a notice on its website announcing a local mobile app design competition for iOS and Android developers from April 15 to May 15. According to the introduction, the competition is designed to encourage the vast number of programming enthusiasts actively par
When Android and iosAPP call payment, the page is blank and my backend is developed with php. I first called the unified order generation and generated the prepay_id pre-payment order number. the code is as follows: {code ...} send the following parameters generated to Android
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