java.lang.ClassCastException: android.view.ViewGroup$LayoutParams cannot be cast to android.widget.L

09-09 10:19:59.979: E/AndroidRuntime(2767): FATAL EXCEPTION: main

09-09 10:19:59.979: E/AndroidRuntime(2767): java.lang.ClassCastException: android.view.ViewGroup$LayoutParams cannot be cast to android.widget.LinearLayout$LayoutParams

09-09 10:19:59.979: E/AndroidRuntime(2767): at android.widget.LinearLayout.measureVertical(LinearLayout.java:634)

09-09 10:19:59.979: E/AndroidRuntime(2767): at android.widget.LinearLayout.onMeasure(LinearLayout.java:553)

09-09 10:19:59.979: E/AndroidRuntime(2767): at android.view.View.measure(View.java:12758)

09-09 10:19:59.979: E/AndroidRuntime(2767): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4698)

09-09 10:19:59.979: E/AndroidRuntime(2767): at android.widget.FrameLayout.onMeasure(FrameLayout.java:293)

09-09 10:19:59.979: E/AndroidRuntime(2767): at android.view.View.measure(View.java:12758)

09-09 10:19:59.979: E/AndroidRuntime(2767): at android.widget.LinearLayout.measureVertical(LinearLayout.java:812)

09-09 10:19:59.979: E/AndroidRuntime(2767): at android.widget.LinearLayout.onMeasure(LinearLayout.java:553)

09-09 10:19:59.979: E/AndroidRuntime(2767): at android.view.View.measure(View.java:12758)

09-09 10:19:59.979: E/AndroidRuntime(2767): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4698)

09-09 10:19:59.979: E/AndroidRuntime(2767): at android.widget.FrameLayout.onMeasure(FrameLayout.java:293)

09-09 10:19:59.979: E/AndroidRuntime(2767): at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2092)

09-09 10:19:59.979: E/AndroidRuntime(2767): at android.view.View.measure(View.java:12758)

09-09 10:19:59.979: E/AndroidRuntime(2767): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1064)

09-09 10:19:59.979: E/AndroidRuntime(2767): at android.view.ViewRootImpl.handleMessage(ViewRootImpl.java:2445)

09-09 10:19:59.979: E/AndroidRuntime(2767): at android.os.Handler.dispatchMessage(Handler.java:99)

09-09 10:19:59.979: E/AndroidRuntime(2767): at android.os.Looper.loop(Looper.java:137)

09-09 10:19:59.979: E/AndroidRuntime(2767): at android.app.ActivityThread.main(ActivityThread.java:4424)

09-09 10:19:59.979: E/AndroidRuntime(2767): at java.lang.reflect.Method.invokeNative(Native Method)

09-09 10:19:59.979: E/AndroidRuntime(2767): at java.lang.reflect.Method.invoke(Method.java:511)

09-09 10:19:59.979: E/AndroidRuntime(2767): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:787)

09-09 10:19:59.979: E/AndroidRuntime(2767): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:554)

09-09 10:19:59.979: E/AndroidRuntime(2767): at dalvik.system.NativeStart.main(Native Method)

报错原因：

ImageView image =(ImageView) findViewById(R.id.imageView1);

image.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));

解决方法：

ImageView image =(ImageView) findViewById(R.id.imageView1);

image.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));

小结：

遇到问题时，解决思路有哪些，强化下，第一理清问题环境和背景，如查看如上错误提示，马上就可以定位问题，快速解决。第二、三、四，

其实它不算是问题。为了强化这种思路，在此记录下。