android常见的异常错误

1.  java.net.SocketException: Noroute to host

重新开一下wifi就可以了.

2.

 Failed to install xxx.apk on device '040398FE1701701F': Unable to open sync connection!
 java.io.IOException: Unable to open sync connection!
 Launch canceled!

重新打开usb调试就可以了.

3.

 res\values\style.xml:44:error: Error retrieving parent for item: No resource found that matches the given name 'android:WindowTitleBackground'

Style.xml里

 <style name="iWindowTitleBackground"parent="android:WindowTitleBackground">
         <item name="android:background">@drawable/title_bar</item>
 </style>

将 "android:WindowTitleBackground" >改为 "*android:WindowTitleBackground" >就可以了.

参照:http://topic.csdn.net/u/20110830/15/f12f7679-8857-4010-ac6e-88b8f52244e8.html

4.

 [2010-03-23 11:57:49 - Poc]Re-installation failed due to different application signatures.
 [2010-03-23 11:57:49 - Poc]You must perform a full uninstall of the application. WARNING: This will remove the application data!
 [2010-03-23 11:57:49 - Poc]Please execute 'adb uninstall com.xue.test' in a shell.
 [2010-03-23 11:57:49 - Poc]Launch canceled!

删除手机中的这个工程即可

5.

 12-29 13:59:31.929: ERROR/AndroidRuntime(5594): Caused by: android.app.SuperNotCalledException: Activity {com.test.lthandmap/com.test.lthandmap.poisearch.PoiInfoListActivity} did not call through to super.onResume()
 12-29 13:59:31.929: ERROR/AndroidRuntime(5594):     at android.app.Activity.performResume(Activity.java:3858)
 12-29 13:59:31.929: ERROR/AndroidRuntime(5594):     at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2127)
 12-29 13:59:31.929: ERROR/AndroidRuntime(5594):     ... 12 more

重写onResume()后,super.onResume()删掉了所导致这个异常,加上就可以了.

6.手机有时候连不上,需要重启adb

7.

 Caused by: java.lang.ClassCastException: android.widget.LinearLayout$LayoutParams

最近，在android中用代码动态改变某种布局（组件）的高度时，会遇到如题所示的类转换异常。上网查了一下，如下所示：

These supply parameters to the parent of this view specifying how it should be arranged. There are many subclasses of ViewGroup.LayoutParams, and these correspond to the different subclasses of ViewGroup that are responsible for arranging their children.

So basically, if you are adding a view to another, you MUST set the LayoutParams of the view to the LayoutParams type that the parent uses, or you will get a runtime error.

  我是这样理解的，如果你要将一个view添加到另一个布局中，你必须设定该View的布局参数为其父类所使用的布局参数类型。即要在代码中动态改变某组件的高度，其布局参数类型应该是其父类所使用的布局参数类型。

view设置了 LayoutParams,他的父控件也需要设置

8.TabHost添加3个及以上tab时报的异常

 Caused by: java.lang.IllegalArgumentException: you must specify a way to create the tab content
 at android.widget.TabHost.addTab(TabHost.java:219)

看TabHost源码可知mContentStrategy=null,所以改下写法

原来的写法

 TabSpec ts1 = tabhost.newTabSpec(TAB1).setIndicator(TAB1);
         ts1.setContent(new Intent(BottomMenu_ArrowTop.this, TestViewFlipper.class));
         tabhost.addTab(ts1);

改写后的写法

 tabhost.addTab(tabhost.newTabSpec(TAB1)
                 .setIndicator(TAB1)
                 .setContent(new Intent(this,TestViewFlipper.class)));

9.jni 方法调用错误

 02-28 23:02:52.218: ERROR/AndroidRuntime(27159): java.lang.UnsatisfiedLinkError: unimplementedStringFromJNI

在jni里没有unimplementedStringFromJNI方法

10.自定义控件

 03-19 10:40:40.905: ERROR/AndroidRuntime(12911): Caused by: android.view.InflateException: Binary XML file line #244: Error inflating class ScrollTextView

xml文件的244行,包名错误导致的

11.resource not found

 04-13 11:06:00.460: ERROR/AndroidRuntime(25002): android.content.res.Resources$NotFoundException: String resource ID #0x1

开始觉得很奇怪,clean了一下也不行,后来发现是在textView.setText(position); 里面应该是string,而当时写的int

12.viewpager的异常

因sdk升级后viewpager抛出异常

 E/AndroidRuntime(6997): Caused by: java.lang.ClassNotFoundException: android.support.v4.view.ViewPager in loader dalvik.system.PathClassLoader[/data/app/cn.cmcc.brower.apk]

把第三方的包放在项目目录下的libs里,右键libs包设置 build path 选use as source folder,再把  jar包   add to build path,就ok了

13.连不上手机

 ADB server didn't ACK
 * failed to start daemon *

关掉360,重启eclipse,未解决的话,卸载豌豆荚,重启eclipse

14.IllegalStateException 非法状态异常

 java.lang.IllegalStateException The specified child already has a parent. You must call removeView() on the child's parent first.

把一个View实例加入到两个布局会抛出这个异常,加到第二个布局时new一个view加进去就可以了

15.让proguard不混淆第三方jar包

 -keep public class 包名.**{*;}
    源地址:http://blog.csdn.net/ethan_xue/