手写android布局示例

package com.test;

import android.app.activity;
import android.os.bundle;
//import android.view.view;
import android.widget.button;
import android.widget.linearlayout;
//import android.widget.toast;

public class test_javaactivity extends activity {

        @override
        public void oncreate(bundle savedinstancestate) {
                super.oncreate(savedinstancestate);

                linearlayout layout = new linearlayout(this);
                // layout.setorientation(linearlayout.vertical);

                button button = new button(this);

                button.settext("click me");

                button.setlayoutparams(new linearlayout.layoutparams(
                                linearlayout.layoutparams.fill_parent,
                                linearlayout.layoutparams.wrap_content));

/**                button.setonclicklistener(new view.onclicklistener() {
                        @override
                        public void onclick(view v) {
                                toast.maketext(test_javaactivity.this, "button clicked",
                                                toast.length_long).show();
                        }
                });
*/
                layout.addview(button);
                setcontentview(layout);
        }
}