yangman的博客

方法private boolean isMobileNO(String mobiles) { String telRegex = "^((1[3,5,7,8][0-9])|(15[^4,\\D])|(18[0,5-9]))\\d{8}$"; if (TextUtils.isEmpty(mobiles)) { return false; ...

Error:java.util.concurrent.ExecutionException: com.android.tools.aapt2.Aapt2Exception: AAPT2 error: check logs for detailsError:Execution failed for task ':app:mergeDebugResources'.> Error: java.ut...

public boolean isRun(Context context) { ActivityManager am = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE); List<ActivityManager.RunningTaskInfo> list = am...

方法一：在styles.xml文件下把parent属性改成“Theme.AppCompat.Light.NoActionBar”此方法可全局修改。方法二：可以在AndroidManifest.xml修改，更改Theme属性为“@style/Theme.AppCompat.NoActionBar”在application里面为全局修改，在activity里修改为当前活动修改。方法三：在代码中调用ge...

调试版：首先进入cmd控制台，跳转到你的jdk目录，如“C:\Program Files\Java\jdk-10.0.1\bin”，然后输入keytool -list -v -keystore C:\Users\Administrator\.android\debug.keystore即可。发布版：前面的步骤一样，命令为："keytool -list -v -keystore Your...

1、需在AndroidManifest中添加权限<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />2、需在代码中查询是否开启权限if(Build.VERSION.SDK_INT>=23) { if(Settings.canDraw...

Finished with error: ProcessException: Process "F:\flutter\example\first_flutter_app\android\gradlew.bat" exited abnormally:Exception in thread "main" java.lang.NullPointerException at org.gradle.w...