Android中利用LinearLayout继承实现ImageButton

原理：通过继承Linearlayout，摆放自己所需的imageview和textview，形成ImageButton

直接上源码：

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1. import android.widget.TextView;
2. 
3. public class
4. {
5. private
6. private
7. 
8. public
9. {
10. super(context,attrs);
11. 
12. new
13. mImage.setPadding(0,0,0,0);
14. new
15. //mText.setGravity(android.view.Gravity.CENTER_HORIZONTAL);
16. //  mText.setGravity(android.view.Gravity.CENTER_VERTICAL);
17. mText.setPadding(0,0,0,0);
18. 
19. 
20. true);
21. true);
22. setBackgroundResource(android.R.drawable.btn_default);
23. setOrientation(LinearLayout.VERTICAL);
24. addView(mImage);
25. addView(mText);
26. }
27. }

调用自己编写的ImageButton1

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1. <com.test.b.ImageButton1
2. android:id="@+id/imbtn01"
3. android:layout_width="wrap_content"
4. android:layout_height="wrap_content"
5. android:src="@drawable/icon"
6. android:text="MOAR"
7. android:textColor="#ff000000"
8. />
<com.test.b.ImageButton1       android:id="@+id/imbtn01"    android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:src="@drawable/icon"      android:text="MOAR"      android:textColor="#ff000000"      />

注意调用ImageButton1时，要用全名：com.test.b.ImageButton1 

效果：button中上图下文字