错误原因一般只有一个:就是你访问服务器的时候带的参数没有对应一致 所以返回来的是乱码
10-21 22:58:36.149: W/System.err(20626): org.json.JSONException: End of input at character 0 of
10-21 22:58:36.149: W/System.err(20626): at org.json.JSONTokener.syntaxError(JSONTokener.java:450)
10-21 22:58:36.149: W/System.err(20626): at org.json.JSONTokener.nextValue(JSONTokener.java:97)
10-21 22:58:36.150: W/System.err(20626): at org.json.JSONArray.<init>(JSONArray.java:92)
10-21 22:58:36.150: W/System.err(20626): at org.json.JSONArray.<init>(JSONArray.java:108)
10-21 22:58:36.150: W/System.err(20626): at com.javis.mytools.HttpTools.getUScoreData(HttpTools.java:784)
10-21 22:58:36.150: W/System.err(20626): at com.jarvis.user.score.UScoreActivity$2.run(UScoreActivity.java:120)
10-21 22:58:36.150: W/System.err(20626): at java.lang.Thread.run(Thread.java:848)
错误原因一般只有一个:就是你访问服务器的时候带的参数没有对应一致 所以返回来的是不知道什么鬼东西
10-20 22:02:13.157: E/AndroidRuntime(9372): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2392)
10-20 22:02:13.157: E/AndroidRuntime(9372): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2443)
10-20 22:02:13.157: E/AndroidRuntime(9372): at android.app.ActivityThread.access$800(ActivityThread.java:157)
10-20 22:02:13.157: E/AndroidRuntime(9372): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1354)
10-20 22:02:13.157: E/AndroidRuntime(9372): at android.os.Handler.dispatchMessage(Handler.java:110)
10-20 22:02:13.157: E/AndroidRuntime(9372): at android.os.Looper.loop(Looper.java:193)
10-20 22:02:13.157: E/AndroidRuntime(9372): at android.app.ActivityThread.main(ActivityThread.java:5348)
10-20 22:02:13.157: E/AndroidRuntime(9372): at java.lang.reflect.Method.invokeNative(Native Method)
10-20 22:02:13.157: E/AndroidRuntime(9372): at java.lang.reflect.Method.invoke(Method.java:515)
10-20 22:02:13.157: E/AndroidRuntime(9372): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:829)
10-20 22:02:13.157: E/AndroidRuntime(9372): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:645)
10-20 22:02:13.157: E/AndroidRuntime(9372): at dalvik.system.NativeStart.main(Native Method)
10-20 22:02:13.157: E/AndroidRuntime(9372): Caused by: java.lang.ClassCastException: android.widget.ImageView cannot be cast to android.widget.TextView
10-20 22:02:13.157: E/AndroidRuntime(9372): at com.jarvis.user.RusumeReadView.initVoice(RusumeReadView.java:177)
10-20 22:02:13.157: E/AndroidRuntime(9372): at com.jarvis.user.RusumeReadView.initView(RusumeReadView.java:95)
10-20 22:02:13.157: E/AndroidRuntime(9372): at com.jarvis.user.RusumeReadView.<init>(RusumeReadView.java:85)
10-20 22:02:13.157: E/AndroidRuntime(9372): at com.jarvis.user.EdtiorInfoActivity.onCreate(EdtiorInfoActivity.java:66)
10-20 22:02:13.157: E/AndroidRuntime(9372): at android.app.Activity.performCreate(Activity.java:5451)
10-20 22:02:13.157: E/AndroidRuntime(9372): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1097)
10-20 22:02:13.157: E/AndroidRuntime(9372): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2346)
10-20 22:02:13.157: E/AndroidRuntime(9372): ... 11 more
错误原因:修改布局的时候 把textview 换成了imageview 但是对应的类中又忘记搞了
10-20 17:03:00.321: E/AndroidRuntime(32677): Process: com.example.nongmin, PID: 32677
10-20 17:03:00.321: E/AndroidRuntime(32677): java.lang.RuntimeException: Unable to start activity ComponentInfo: java.lang.NullPointerException: println needs a message
10-20 17:03:00.321: E/AndroidRuntime(32677): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2392)
10-20 17:03:00.321: E/AndroidRuntime(32677): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2443)
10-20 17:03:00.321: E/AndroidRuntime(32677): at android.app.ActivityThread.access$800(ActivityThread.java:157)
10-20 17:03:00.321: E/AndroidRuntime(32677): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1354)
10-20 17:03:00.321: E/AndroidRuntime(32677): at android.os.Handler.dispatchMessage(Handler.java:110)
10-20 17:03:00.321: E/AndroidRuntime(32677): at android.os.Looper.loop(Looper.java:193)
10-20 17:03:00.321: E/AndroidRuntime(32677): at android.app.ActivityThread.main(ActivityThread.java:5348)
10-20 17:03:00.321: E/AndroidRuntime(32677): at java.lang.reflect.Method.invokeNative(Native Method)
10-20 17:03:00.321: E/AndroidRuntime(32677): at java.lang.reflect.Method.invoke(Method.java:515)
10-20 17:03:00.321: E/AndroidRuntime(32677): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:829)
10-20 17:03:00.321: E/AndroidRuntime(32677): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:645)
10-20 17:03:00.321: E/AndroidRuntime(32677): at dalvik.system.NativeStart.main(Native Method)
10-20 17:03:00.321: E/AndroidRuntime(32677): Caused by: java.lang.NullPointerException: println needs a message
10-20 17:03:00.321: E/AndroidRuntime(32677): at android.util.Log.println_native(Native Method)
10-20 17:03:00.321: E/AndroidRuntime(32677): at android.util.Log.i(Log.java:160)
10-20 17:03:00.321: E/AndroidRuntime(32677): at com.jarvis.bdmap.MyRouteSuggestion.onCreate(MyRouteSuggestion.java:106)
10-20 17:03:00.321: E/AndroidRuntime(32677): at android.app.Activity.performCreate(Activity.java:5451)
10-20 17:03:00.321: E/AndroidRuntime(32677): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1097)
10-20 17:03:00.321: E/AndroidRuntime(32677): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2346)
10-20 17:03:00.321: E/AndroidRuntime(32677): ... 11 more
错误原因:调试的时候打印log的时候不能打印空值 没有初始化的值
10-21 19:56:33.350: E/AndroidRuntime(12505): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2392)
10-21 19:56:33.350: E/AndroidRuntime(12505): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2443)
10-21 19:56:33.350: E/AndroidRuntime(12505): at android.app.ActivityThread.access$800(ActivityThread.java:157)
10-21 19:56:33.350: E/AndroidRuntime(12505): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1354)
10-21 19:56:33.350: E/AndroidRuntime(12505): at android.os.Handler.dispatchMessage(Handler.java:110)
10-21 19:56:33.350: E/AndroidRuntime(12505): at android.os.Looper.loop(Looper.java:193)
10-21 19:56:33.350: E/AndroidRuntime(12505): at android.app.ActivityThread.main(ActivityThread.java:5348)
10-21 19:56:33.350: E/AndroidRuntime(12505): at java.lang.reflect.Method.invokeNative(Native Method)
10-21 19:56:33.350: E/AndroidRuntime(12505): at java.lang.reflect.Method.invoke(Method.java:515)
10-21 19:56:33.350: E/AndroidRuntime(12505): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:829)
10-21 19:56:33.350: E/AndroidRuntime(12505): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:645)
10-21 19:56:33.350: E/AndroidRuntime(12505): at dalvik.system.NativeStart.main(Native Method)
10-21 19:56:33.350: E/AndroidRuntime(12505): Caused by: java.lang.NumberFormatException: Invalid int: ""
10-21 19:56:33.350: E/AndroidRuntime(12505): at java.lang.Integer.invalidInt(Integer.java:137)
10-21 19:56:33.350: E/AndroidRuntime(12505): at java.lang.Integer.parseInt(Integer.java:358)
10-21 19:56:33.350: E/AndroidRuntime(12505): at java.lang.Integer.parseInt(Integer.java:331)
10-21 19:56:33.350: E/AndroidRuntime(12505): at com.jarvis.mytaobao.user.User_life.initScratch(User_life.java:79)
10-21 19:56:33.350: E/AndroidRuntime(12505): at com.jarvis.mytaobao.user.User_life.onCreate(User_life.java:70)
10-21 19:56:33.350: E/AndroidRuntime(12505): at android.app.Activity.performCreate(Activity.java:5451)
10-21 19:56:33.350: E/AndroidRuntime(12505): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1097)
10-21 19:56:33.350: E/AndroidRuntime(12505): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2346)
10-21 19:56:33.350: E/AndroidRuntime(12505): ... 11 more
错误原因是打印的int类型需要初始化,但是这个问题真正错误的地方在于 当一个activity销毁的时候这个值就又变成最开始的了