出现错误ActivityManager: Warning: Activity not started, its current task has been

1、在学习两个Activity的切换时,重新把新的工程部署上模拟器时候出现错误:ActivityManager: Warning: Activity not started, its current task has been brought to the front。

原因是:两个应用起了同样的名字,模拟器总是识别第一个

或者是两个应用中的一个已经在系统的缓存中,这是android的机制

解决方法是:重新启动一下模拟器;如果还是不行,可以先把模拟器delete掉再重新add就可以了。

2、另外,若是有版本信息警告:

WARNING: Application does not specify an API level requirement!
Device API version is 8 (Android
2.2)

在androidMainfest.xml
里的<manifest></manifest>之间的标记符添加
<uses-sdk android:minSdkVersion="8"
/>这行xml代码就行。其中7表示version2.2的版本

3、若已经添加还出现如下警告:

WARNING:
<uses-sdk> tag should specify a
target API level (the highest verified version; when running on
later
versions, compatibility behaviors may be enabled)
with
android:targetSdkVersion="?"

只要在上面的地方再设置一个target目标版本就ok了(见如下蓝色改动地方)

<uses-sdk
android:minSdkVersion="8"
         
android:targetSdkVersion="8"/>

4、若出现这个警告:

<uses-permission>
tag appears after <application>
tag

把<uses-permission>
放到 <application>
前面即可消除,据说是新版本的“特性”

出现错误ActivityManager: Warning: Activity not started, its current task has been,布布扣,bubuko.com

时间: 2024-12-23 08:12:17

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