my map happens ANR

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I am a android developer, and i make a android ROS project. There was no problem with the project before, but the ANR was happens some time age.

The ANR always happens when i change the map mode, my map will ANR. eg: i have A mode to composition of a new map, and another B mode to show the full map, i send command to ros for change thats mode. such as "mode:1" . "mode:2" and so so.

ANR will happens when i change mode A to B, or B to A,

I would very much like someone to help me with this problem, thx.