Button效果示例（7）

        參考博客：http://blog.csdn.net/vqqyuan/article/details/44648683#

        

<span style="font-size:18px;"><span style="font-family:SimSun;">public class ButtonViewSampleActivity extends Activity {
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_text_view_samples);

        LinearLayout viewContainer = (LinearLayout) findViewById(R.id.view_container);
        Button button = new Button(this);
        LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,ViewGroup.LayoutParams.WRAP_CONTENT);
        params.gravity = Gravity.CENTER;
        button.setLayoutParams(params);
        button.setBackgroundResource(R.drawable.button_selector);
        viewContainer.addView(button);
    }
}</span></span>

        drawable.button_seletor定義在xml文件中

<span style="font-size:18px;"><?xml version="1.0" encoding="utf-8"?>

<selector xmlns:android="http://schemas.android.com/apk/res/android">
	<item android:state_pressed="true" android:drawable="@drawable/button_red" />
	<item android:state_pressed="false" android:drawable="@drawable/button_green" />
</selector></span>