程序实现线性布局相关

程序实现线性布局相关1、

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@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);// setContentView(R.layout.rainbow);TextView tv1 = new TextView(this);tv1.setText("FIRST");tv1.setTextSize(100);tv1.setGravity(Gravity.CENTER);TextView tv2 = new TextView(this);tv2.setTextSize(100);tv2.setGravity(Gravity.CENTER);tv2.setText("MIDDLE");TextView tv3 = new TextView(this);tv3.setTextSize(100);tv3.setGravity(Gravity.CENTER);tv3.setText("LAST");LinearLayout ll = new LinearLayout(this);ll.setOrientation(LinearLayout.VERTICAL);ll.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.FILL_PARENT));ll.setGravity(Gravity.CENTER);ll.addView(tv1);ll.addView(tv2);ll.addView(tv3);setContentView(ll);}

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