首先看看网上的2种方法:
【以下为引用网络,来源:http://www.eoeandroid.com/thread-7931-1-1.html】
使用Button时为了让用户有“按下”的效果,有两种实现方式:
1.在代码里面。
- imageButton.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){
//改为擡起时的图片
v.setBackgroundResource(R.drawable.released);
} return false;
} }); imageButton.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){
//改为擡起时的图片
v.setBackgroundResource(R.drawable.released);
} return false;
} });
imageButton.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){
//改为擡起时的图片 v.setBackgroundResource(R.drawable.released); } return false; } }); imageButton.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){ //改为擡起时的图片 v.setBackgroundResource(R.drawable.released); } return false; } });
2.用XML文件实现。
- <?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>
<?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> <?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> <?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>
这个文件放在drawable目录下面。命名为button_add_x.xml
使用的时候
- <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>
<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> <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> <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>
【以上为引用网络,来源:http://www.eoeandroid.com/thread-7931-1-1.html】
【以下为原创,转载请注明出处:http://blog.csdn.net/sytzz/archive/2010/06/16/5673662.aspx】
我自己摸索摸索,发现这样的实现过程虽然通用性好,但是很麻烦,一个按钮实现效果需要多张图片甚至再加一个布局…
那一个游戏要是有几百个按钮怎么办呢?
于是:以下代码被酝酿出来了:
- /**
- * 按下这个按钮进行的颜色过滤
- */
- public final static float[] BT_SELECTED=new float[] {
2, 0, 0, 0, 2,
0, 2, 0, 0, 2,
0, 0, 2, 0, 2,
0, 0, 0, 1, 0 };
/** * 按钮恢复原状的颜色过滤 */ public final static float[] BT_NOT_SELECTED=new float[] {
1, 0, 0, 0, 0,
0, 1, 0, 0, 0,
0, 0, 1, 0, 0,
0, 0, 0, 1, 0 };
/** * 按钮焦点改变 */ public final static OnFocusChangeListener buttonOnFocusChangeListener=new OnFocusChangeListener() {
@Override public void onFocusChange(View v, boolean hasFocus) {
if (hasFocus) {
v.getBackground().setColorFilter(new ColorMatrixColorFilter(BT_SELECTED));
v.setBackgroundDrawable(v.getBackground()); } else { v.getBackground().setColorFilter(new ColorMatrixColorFilter(BT_NOT_SELECTED));
v.setBackgroundDrawable(v.getBackground()); } } }; /** * 按钮触碰按下效果 */ public final static OnTouchListener buttonOnTouchListener=new OnTouchListener() {
@Override public boolean onTouch(View v, MotionEvent event) {
if(event.getAction() == MotionEvent.ACTION_DOWN){
v.getBackground().setColorFilter(new ColorMatrixColorFilter(BT_SELECTED));
v.setBackgroundDrawable(v.getBackground()); } else if(event.getAction() == MotionEvent.ACTION_UP){
v.getBackground().setColorFilter(new ColorMatrixColorFilter(BT_NOT_SELECTED));
v.setBackgroundDrawable(v.getBackground()); } return false;
} }; /** * 设置图片按钮获取焦点改变状态 * @param inImageButton */ public final static void setButtonFocusChanged(View inView)
{ inView.setOnTouchListener(buttonOnTouchListener); inView.setOnFocusChangeListener(buttonOnFocusChangeListener);
} /** * 按下这个按钮进行的颜色过滤 */ public final static float[] BT_SELECTED=new float[] { 2, 0, 0, 0, 2, 0, 2, 0, 0, 2, 0, 0, 2, 0, 2, 0, 0, 0, 1, 0 }; /** * 按钮恢复原状的颜色过滤 */ public final static float[] BT_NOT_SELECTED=new float[] { 1, 0, 0, 0, 0, 0,
1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0 }; /** * 按钮焦点改变 */ public final static OnFocusChangeListener buttonOnFocusChangeListener=new OnFocusChangeListener() { @Override public void onFocusChange(View v, boolean hasFocus) { if (hasFocus) { v.getBackground().setColorFilter(new
ColorMatrixColorFilter(BT_SELECTED)); v.setBackgroundDrawable(v.getBackground()); } else { v.getBackground().setColorFilter(new ColorMatrixColorFilter(BT_NOT_SELECTED)); v.setBackgroundDrawable(v.getBackground()); } } }; /** * 按钮触碰按下效果 */ public final static
OnTouchListener buttonOnTouchListener=new OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent event) { if(event.getAction() == MotionEvent.ACTION_DOWN){ v.getBackground().setColorFilter(new ColorMatrixColorFilter(BT_SELECTED)); v.setBackgroundDrawable(v.getBackground());
} else if(event.getAction() == MotionEvent.ACTION_UP){ v.getBackground().setColorFilter(new ColorMatrixColorFilter(BT_NOT_SELECTED)); v.setBackgroundDrawable(v.getBackground()); } return false; } }; /** * 设置图片按钮获取焦点改变状态 * @param inImageButton */ public final
static void setButtonFocusChanged(View inView) { inView.setOnTouchListener(buttonOnTouchListener); inView.setOnFocusChangeListener(buttonOnFocusChangeListener); }
使用时,调用方法
public final static void setButtonFocusChanged(View inView)
即可。
【原理】
利用Drawable类的setColorFilter方法对图片进行颜色偏移过滤处理。
以下为效果图,登陆按钮此时为获取焦点状态。
代码可以适当修改实现3个不同的状态:正常,获取焦点,点击。
【以上为原创,转载请注明出处:http://blog.csdn.net/sytzz/archive/2010/06/16/5673662.aspx】
【附docx文件下载】需要收费,您的支持就是我的动力,谢谢啦
http://www.docin.com/DocinViewer-60345763-144.swf