Android:Java代码添加按钮

LinearLayout layout = (LinearLayout) findViewById(R.id.container);

Button bn = new Button(this);
bn.setText("点击");
bn.setLayoutParams(new ViewGroup.LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.WRAP_CONTENT));

layout.addView(bn);

bn.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View arg0) {
ComponentName comp = new ComponentName(MainActivity.this, FullscreenActivity02.class);
Intent intent = new Intent();
intent.setComponent(comp);
startActivity(intent);
}
});