[Android] Debug & Debug tools

1. Docs
• http://developer.android.com/guide/developing/debugging/index.html
• How to debug on device
  http://developer.android.com/guide/developing/device.html
  
• Reading and Writing Logs
  http://developer.android.com/guide/developing/debugging/debugging-log.html
  
• xxx
  
2. Tools
   
   • adb (Android Debug Bridge
     
     • ps
       
     • logcat
       
   • ddms (Dalvik Debug Monitor Server
     
     • Capture screenshots
     • Send sms to monitor
     • Trigger call to monitor
     • ...
       
   • Log (Write log in code)
     
     • logcat
       
   • Try-catch-finally, and then you can print stack trace with Throwable.printStackTrace(xxx).
     
   • gdb
     (Reference: http://blog.csdn.net/mayqlzu/article/details/5669241)
     
     启动模拟器
     
     $emulator
     
     进入device
     
     $adb shell
     
     从模拟器点击启动Browser
     
     看看它的process id是多少
     
     #ps
     
     记住你要的pid
     
     启动gdbserver， 指定在哪个prot上监听client，指定调试哪个进程
     
     #gdbserver :5039 --attach pid
     
     开始cient端的工作
     
     On your workstation, forward port 5039 to the device with adb: 不知道怎么翻译
     
     打开一个新的终端
     
     $adb forward tcp:5039 tcp:5039
     
     $cd ~/mydroid
     
     找一个最新版本的arm-eabi-gdb
     
     $find -name arm-eabi-gdb
     
     记住path
     
     启动gdbclient
     
     $/home/peipei/mydroid/prebuilt/linux-x86/toolchain/arm-eabi-4.4.0/bin/arm-eabi-gdb /home/peipei/mydroid/out/target/product/generic/symbols/system/bin/app_process
     
     In gdb, Tell gdb where to find the shared libraries that will get loaded:
     
     (gdb)set solib-absolute-prefix /home/peipei/mydroid/out/target/product/generic/symbols
     
     (gdb)set solib-search-path /home/peipei/mydroid/out/target/product/generic/symbols/system/lib
     
     小心，路径别写错，如果错了，gdb是不会告诉你的。
     
     另外，要注意，两个路径都要指向symbols目录。
     
     Connect to the device by issuing the gdb command:
     
     (gdb)target remote :5039
     
     The :5039 tells gdb to connect to the localhost port 5039, which is bridged to the device by adb.
     
     You may need to inspire gdb to load some symbols by typing:
     
     (gdb)shared
     
   • xx
     
3. FAQ
   
   • Debug on Device
     Window: Install USB driver for the device
     Linux: Add USB configure file under /etc/udev/xxx following the steps at http://developer.android.com/guide/developing/device.html, and then execute 'adb usb && adb kill-server && adb start-server' as super user.
     
     
   • [Q] Can't find proguard.cfg under /tools/lib when to create Android project.
     [A]
     1st Way:
        - Eclipse--->Window--->Android SDK And AVD Manager(或者直接在Android解压目录底下运行SDK Setup.exe)
        - 选择installed packages，在右边列表中选择SDK tools ，点击 update all
     
     2nd Way:
     Create the file proguard.cfg with the following contents:
     
     -optimizationpasses 5
     -dontusemixedcaseclassnames
     -dontskipnonpubliclibraryclasses
     -dontpreverify
     -verbose
     -optimizations !code/simplification/arithmetic,!field/*,!class/merging/*
     
     -keep public class * extends android.app.Activity
     -keep public class * extends android.app.Application
     -keep public class * extends android.app.Service
     -keep public class * extends android.content.BroadcastReceiver
     -keep public class * extends android.content.ContentProvider
     -keep public class com.android.vending.licensing.ILicensingService
     
     -keepclasseswithmembernames class * {
         native ;
     }
     
     -keepclasseswithmembernames class * {
         public (android.content.Context, android.util.AttributeSet);
     }
     
     -keepclasseswithmembernames class * {
         public (android.content.Context, android.util.AttributeSet, int);
     }
     
     -keepclassmembers enum * {
         public static **[] values();
         public static ** valueOf(java.lang.String);
     }
     
     -keep class * implements android.os.Parcelable {
       public static final android.os.Parcelable$Creator *;
     }
   • ［Q］When to run application on Android Emulator 2.0, Android reports error:
     android.view.InflateException: Binary XML file line #xxx: Error inflating class xxx"
     ...................
     android.content.res.Resources$NotFoundException: File res/drawable/title_bar_shadow.9.png from drawable resource ID xxx
     ................
     
     
     The details error messages are:
     =================================
     08-01 21:03:10.510: ERROR/AndroidRuntime(914): Uncaught handler: thread main exiting due to uncaught exception
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.tek.apps.android.theawayteam/com.tek.apps.android.blah.Blahhome}: android.view.InflateException: Binary XML file line #2: Error inflating class java.lang.reflect.Constructor
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2268)
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2284)
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): at android.app.ActivityThread.access$1800(ActivityThread.java:112)
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1692)
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): at android.os.Handler.dispatchMessage(Handler.java:99)
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): at android.os.Looper.loop(Looper.java:123)
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): at android.app.ActivityThread.main(ActivityThread.java:3948)
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): at java.lang.reflect.Method.invokeNative(Native Method)
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): at java.lang.reflect.Method.invoke(Method.java:521)
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:782)
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:540)
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): at dalvik.system.NativeStart.main(Native Method)
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): Caused by: android.view.InflateException: Binary XML file line #2: Error inflating class java.lang.reflect.Constructor
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): at android.view.LayoutInflater.createView(LayoutInflater.java:512)
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56)
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:562)
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): at android.view.LayoutInflater.inflate(LayoutInflater.java:385)
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:309)
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): at android.app.Activity.setContentView(Activity.java:1626)
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): at com.tek.apps.android.theawayteam.football.FootballHome.onCreate(FootballHome.java:17)
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1123)
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2231)
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): … 11 more
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): Caused by: java.lang.reflect.InvocationTargetException
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): at android.widget.LinearLayout.(LinearLayout.java:92)
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): at java.lang.reflect.Constructor.constructNative(Native Method)
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): at java.lang.reflect.Constructor.newInstance(Constructor.java:446)
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): at android.view.LayoutInflater.createView(LayoutInflater.java:499)
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): … 21 more
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): Caused by: android.content.res.Resources$NotFoundException: File res/drawable/title_bar_shadow.9.png from drawable resource ID #0x7f02000c
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): at android.content.res.Resources.loadDrawable(Resources.java:1641)
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): at android.content.res.TypedArray.getDrawable(TypedArray.java:548)
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): at android.view.View.(View.java:1725)
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): at android.view.View.(View.java:1674)
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): at android.view.ViewGroup.(ViewGroup.java:271)
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): … 25 more
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): Caused by: java.io.FileNotFoundException: res/drawable/title_bar_shadow.9.png
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): at android.content.res.AssetManager.openNonAssetNative(Native Method)
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): at android.content.res.AssetManager.openNonAsset(AssetManager.java:392)
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): at android.content.res.Resources.loadDrawable(Resources.java:1634)
     08-01 21:03:10.550: ERROR/AndroidRuntime(914): … 29 more
     
     [A]Its looks like a packing/extraction problem. The way to solve this is to rename your drawable-mdpi folder to drawable.
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