Java.lang.UnsupportedOperationException:Can ' t convert to dimension:type=0x12

This error is an error in the layout XML file, possibly the layout android:layout_margintop= "@id/seekbar1", which is followed by a number unit, not an ID, But there is no error, so in the run time, will appear such a mistake

The second small exception that I summed up

Two string comparison, call equal This method, the preceding string may be empty, will be reported null pointer error, so it is generally possible to put an empty string behind.

Java.lang.UnsupportedOperationException:Can ' t convert to dimension:type=0x12