package? com.doop.multilayoutdemo ; import? android.os.Bundle ; import? android.support.v7.app.AppCompatActivity ; import? android.view.LayoutInflater ; import? android.view.View ; import? android.widget.Button ; import? android.widget.LinearLayout ; import? android.widget.RelativeLayout ; //在后面添加implements?View.OnClickListener public?class? MainActivity? extends? AppCompatActivity? implements? View.OnClickListener? { ???? private? RelativeLayout? FatherLL ; ???? private? LinearLayout? ChildLL1 ; ???? private? LinearLayout? ChildLL2 ; ???? private? Button? btnloadLayout ; ???? private? RelativeLayout.LayoutParams? RLP ; ???? @Override ???? protected?void? onCreate ( Bundle? savedInstanceState)?{ ???????? super . onCreate (savedInstanceState) ; ???????? setContentView ( R.layout . activity_main ) ; ???????? init () ; //初始化 ???? } ???? //初始化 ???? private?void? init ()?{ ???????? btnloadLayout? =?( Button )? findViewById ( R.id . btn_openChildLayout ) ; //定義按鈕引用 ???????? FatherLL? =?( RelativeLayout )? findViewById ( R.id . activity_main ) ; //定義布局變量引用 ???????? View? view1? =? LayoutInflater . from ( this ). inflate ( R.layout . acttivity_child ,?null,?false ) ; ???????? ChildLL1? =?( LinearLayout )? view1 . findViewById ( R.id . child1 ) ; ???????? View? view2? =? LayoutInflater . from ( this ). inflate ( R.layout . activity_child2 ,?null,?false ) ; ???????? ChildLL2? =?( LinearLayout )? view2 . findViewById ( R.id . child2 ) ; ???????? btnloadLayout . setOnClickListener ( this ) ; //btn_openChildLayout添加單擊監(jiān)聽 ???? } ???? public?void? onClick ( View? view)?{ ???????? switch? (view. getId ())?{ ???????????? case? R.id . btn_openChildLayout : ???????????????? RelativeLayout.LayoutParams? RLP? =? new? RelativeLayout.LayoutParams ( ???????????????????????? RelativeLayout.LayoutParams . WRAP_CONTENT , ???????????????????????? RelativeLayout.LayoutParams . WRAP_CONTENT ) ; ???????????????? RLP . setMargins ( 16 ,? 16 ,? 16 ,? 16 ) ; ???????????????? FatherLL . addView ( ChildLL1 ,? RLP ) ; ???????????????? ChildLL1 . setVisibility ( View . VISIBLE ) ; ???????????????? break ; ???????????? default : ???????????????? break ; ???????? } ????} }