自定义控件

http://www.cnblogs.com/whoislcj/p/5711001.html

http://blog.csdn.net/allen315410/article/details/39343401

http://blog.csdn.net/yisizhu/article/details/51582622

http://www.jianshu.com/p/d507e3514b65

报错log如下：

02-17 08:18:26.845  6185  6185 E AndroidRuntime: FATAL EXCEPTION: main02-17 08:18:26.845  6185  6185 E AndroidRuntime: Process: com.songyan.getcontacts, PID: 618502-17 08:18:26.845  6185  6185 E AndroidRuntime: java.lang.RuntimeException: Unable to start activity ComponentInfo{com.songyan.getcontacts/com.songyan.getcontacts.MainActivity}: android.view.InflateException: Binary XML file line #57: Binary XML file line #57: Error inflating class <unknown>02-17 08:18:26.845  6185  6185 E AndroidRuntime: at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2730)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2795)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at android.app.ActivityThread.-wrap12(ActivityThread.java)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1533)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:110)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at android.os.Looper.loop(Looper.java:203)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:6261)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at java.lang.reflect.Method.invoke(Native Method)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1063)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:924)02-17 08:18:26.845  6185  6185 E AndroidRuntime: Caused by: android.view.InflateException: Binary XML file line #57: Binary XML file line #57: Error inflating class <unknown>02-17 08:18:26.845  6185  6185 E AndroidRuntime: Caused by: android.view.InflateException: Binary XML file line #57: Error inflating class <unknown>02-17 08:18:26.845  6185  6185 E AndroidRuntime: Caused by: java.lang.reflect.InvocationTargetException02-17 08:18:26.845  6185  6185 E AndroidRuntime: at java.lang.reflect.Constructor.newInstance0(Native Method)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at java.lang.reflect.Constructor.newInstance(Constructor.java:430)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at android.view.LayoutInflater.createView(LayoutInflater.java:645)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:787)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:727)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at android.view.LayoutInflater.rInflate(LayoutInflater.java:858)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:821)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at android.view.LayoutInflater.inflate(LayoutInflater.java:518)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at android.view.LayoutInflater.inflate(LayoutInflater.java:426)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at android.view.LayoutInflater.inflate(LayoutInflater.java:377)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at com.android.internal.policy.PhoneWindow.setContentView(PhoneWindow.java:440)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at android.app.Activity.setContentView(Activity.java:2416)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at com.songyan.getcontacts.MainActivity.onCreate(MainActivity.java:30)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at android.app.Activity.performCreate(Activity.java:6666)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1118)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2683)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2795)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at android.app.ActivityThread.-wrap12(ActivityThread.java)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1533)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:110)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at android.os.Looper.loop(Looper.java:203)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:6261)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at java.lang.reflect.Method.invoke(Native Method)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1063)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:924)02-17 08:18:26.845  6185  6185 E AndroidRuntime: Caused by: android.content.res.Resources$NotFoundException: Resource ID #0xff00ff0002-17 08:18:26.845  6185  6185 E AndroidRuntime: at android.content.res.ResourcesImpl.getValue(ResourcesImpl.java:190)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at android.content.res.Resources.getDrawable(Resources.java:878)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at android.content.Context.getDrawable(Context.java:530)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at android.view.View.setBackgroundResource(View.java:18439)02-17 08:18:26.845  6185  6185 E AndroidRuntime: at com.songyan.getcontacts.CustomTitleBar.<init>(CustomTitleBar.java:41)02-17 08:18:26.845  6185  6185 E AndroidRuntime: ... 25 more

报这种错误的可能原因是attr.xml文件中定义属性的format格式，例如<attrname="title_background_color"format="color"/>与java文件中获取该属性使用的方法如intTitleBarBackground = attributes.getColor(R.styleable.CustomTitleBar_title_background_color, Color.GREEN);不对应，如果这里使用getResourceId就会报上面的错误。