安卓自定义组合控件实现标题栏

public class TitleView extends FrameLayout {

private Button leftButton;

private TextView titleText;

public TitleView(Context context, AttributeSet attrs) {
super(context, attrs);
LayoutInflater.from(context).inflate(R.layout.title, this);
titleText = (TextView) findViewById(R.id.title_text);
leftButton = (Button) findViewById(R.id.button_left);
leftButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
((Activity) getContext()).finish();
}
});
}

public void setTitleText(String text) {
titleText.setText(text);
}

public void setLeftButtonText(String text) {
leftButton.setText(text);
}

public void setLeftButtonListener(OnClickListener l) {
leftButton.setOnClickListener(l);
}

}