用代码穿件UI

android中有时候需要用代码穿件ui

public class MainActivity extends Activity {

@Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);
LinearLayout layout = new LinearLayout(getApplicationContext());
layout.setOrientation(LinearLayout.VERTICAL);

        TextView tv = new TextView(getApplicationContext());

        // tv.setText("代码创建UI");
//设置控件的显示特性

        tv.setLayoutParams(new ViewGroup.LayoutParams(

                ViewGroup.LayoutParams.MATCH_PARENT,

                ViewGroup.LayoutParams.WRAP_CONTENT));


        tv.setText("代码创建UI");

        Button bt = new Button(getApplicationContext());

        bt.setLayoutParams(new ViewGroup.LayoutParams(

                ViewGroup.LayoutParams.MATCH_PARENT,

                ViewGroup.LayoutParams.WRAP_CONTENT));

        bt.setText("show");
layout.addView(tv);

        layout.addView(bt);

        super.setContentView(layout);

        bt.setOnClickListener(new OnClickListener() {

            @Override

            public void onClick(View v) {

                // TODO Auto-generated method stub

                Toast.makeText(getApplicationContext(), "use code create UI", 1)

                        .show();

            }

        });
}

}

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