What does layout_height="0dp" mean? [duplicate]

This question already has answers here: In android layouts what is the effect/meaning of layout_height="0dip" (4 answers) 开发者_Python百科 Closed 10 years ago.

I looked at lot of places where layout_height="0dp" used. Can someone tell me what does it mean? I tried looking at android developer docs and did not find relevant information there.

Thanks.

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Well, height or width when set to "0dp", are mostly used in combination with "weight". e.g. you want to fill all the available space for height:

android:layout_height = "0dp"
android:layout_weight = "1.0"