ImageButton------------------------------------------------>
一、Java 代码:
在drawable目录下添加新的xml文件 button_add_x.xmlimageButton.setOnTouchListener(new OnTouchListener(){ @Override public boolean onTouch(View v, MotionEvent event) { if(event.getAction() == MotionEvent.ACTION_DOWN){ //更改为按下时的背景图片 v.setBackgroundResource(R.drawable.pressed); }else if(event.getAction() == MotionEvent.ACTION_UP){ //改为抬起时的图片 v.setBackgroundResource(R.drawable.released); } return false; } }); 二、1) 在drawable目录下添加新的xml文件 button_add_x.xml
<?xml version="1.0" encoding="UTF-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="false" android:drawable="@drawable/button_add" />
<item android:state_pressed="true" android:drawable="@drawable/button_add_pressed" />
<item android:state_focused="true" android:drawable="@drawable/button_add_pressed" />
<item android:drawable="@drawable/button_add" />
</selector>
2)在布局文件中写
<ImageButton
android:id="@+id/ImageButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#00000000"
android:src="@drawable/button_add_x" >
</ImageButton>
Java代码:
mBtn = (Button) findViewById(R.id.btn); //btn为layout中的Button ID
mBtn.setOnTouchListener(new OnTouchListener() {
public boolean onTouch(View arg0,MotionEvent arg1) {
if(arg1.getAction() == MotionEvent.ACTION_DOWN) {
arg0.setBackgroundResource(R.drawable.pressed); //按下的图片对应pressed
} else if(arg1.getAction() == MotionEvent.ACTION_UP) {
arg0.setBackgroundResource(R.drawable.normal); //常态下的图片对应normal
}
else if() //这里还可以继续实现MotionEvent.ACTION_MOVE和MotionEvent.ACTION_CANCEL等实现更多的特效
return false;
}
});
改变字体颜色:和Button的区别是改变的是textColor属性,而且selector文件定义在color - ->
1.在layout文件中指定TextView的textColor属性,如android:textColor="@color/textview_color";
2.在color目录下添加新的xml文件textview_color.xml并指定TextView在各种状态下的色值
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_selected="true" android:color="#FFF" />
<item android:state_focused="true" android:color="#FFF" />
<item android:state_pressed="true" android:color="#FFF" />
<item android:color="#000" />
</selector>