custom_buttonfield的歧义
custom_buttonfield的歧义
提问于 2012-07-19 10:55:35
This是原始的按钮图像。按钮的背景是透明的。
当应用到应用程序中时，该按钮看起来像this。请看左上角的按钮。按钮的背景变为灰色而不是透明。
Here是安卓版本的按钮。
不仅是按钮，还有所有相同类型的按钮，背景都是透明的。
The custom_buttonfield
public class Custom_ButtonField extends ButtonField {
Bitmap mNormal;
Bitmap mFocused;
Bitmap mActive;
int mWidth;
int mHeight;
private int color = -1;
String text;
public Custom_ButtonField(Bitmap normal, Bitmap focused, Bitmap active) {
super(CONSUME_CLICK | Field.FOCUSABLE | Field.FIELD_HCENTER
| Field.FIELD_VCENTER);
mNormal = normal;
mFocused = focused;
mActive = active;
mWidth = mNormal.getWidth();
mHeight = mNormal.getHeight();
setMargin(0, 0, 0, 0);
setPadding(0, 0, 0, 0);
setBorder(BorderFactory.createSimpleBorder(new XYEdges(0, 0, 0, 0)));
setBorder(VISUAL_STATE_ACTIVE,
BorderFactory.createSimpleBorder(new XYEdges(0, 0, 0, 0)));
}
public Custom_ButtonField(String text, Bitmap normal, Bitmap focused,
Bitmap active, int color) {
super(CONSUME_CLICK | Field.FOCUSABLE | Field.FIELD_HCENTER
| Field.FIELD_VCENTER);
this.color = color;
mNormal = normal;
mFocused = focused;
mActive = active;
mWidth = mNormal.getWidth();
mHeight = mNormal.getHeight();
setMargin(0, 0, 0, 0);
setPadding(0, 0, 0, 0);
setBorder(BorderFactory.createSimpleBorder(new XYEdges(0, 0, 0, 0)));
setBorder(VISUAL_STATE_ACTIVE,
BorderFactory.createSimpleBorder(new XYEdges(0, 0, 0, 0)));
this.text = text;
}
protected void onFocus(int direction) {
super.onFocus(direction);
}
protected void onUnfocus() {
super.onUnfocus();
}
protected void paint(Graphics graphics) {
int fontcontent;
if (Display.getWidth() > 480)
fontcontent = 28;
else if (Display.getWidth() < 481 && Display.getWidth() > 320)
fontcontent = 23;
else
fontcontent = 18;
Bitmap bitmap = null;
switch (getVisualState()) {
case VISUAL_STATE_NORMAL:
bitmap = mNormal;
break;
case VISUAL_STATE_FOCUS:
bitmap = mFocused;
break;
case VISUAL_STATE_ACTIVE:
bitmap = mActive;
break;
default:
bitmap = mNormal;
}
graphics.drawBitmap(0, 0, bitmap.getWidth(), bitmap.getHeight(),
bitmap, 0, 0);
graphics.setFont(Font.getDefault().derive(Font.BOLD, fontcontent));
graphics.setColor(color);
graphics.drawText(text, (mNormal.getWidth() - Font.getDefault()
.getAdvance(text)) / 2, ((mNormal.getHeight() - Font
.getDefault().getHeight()) / 2) + 10, DrawStyle.HCENTER
| DrawStyle.VCENTER);
}
public int getPreferredWidth() {
return mWidth;
}
public int getPreferredHeight() {
return mHeight;
}
protected void layout(int width, int height) {
setExtent(mWidth, mHeight);
}
}装载器在这里
private Bitmap news = Config_GlobalFunction.Bitmap("icon_news.png");
private Bitmap newsactive = Config_GlobalFunction
.Bitmap("icon_news_active.png");
if (left == 1) {
newsbtn = new Custom_ButtonField(news, newsactive, newsactive) {
protected boolean navigationClick(int status, int time) {
Main.getUiApplication().pushScreen(
new Menu_PopupMenu(thisid));
return true;
}
};
add(newsbtn);
} else if (left == 2) {
backbtn = new Custom_ButtonField(back, backctive, backctive) {
protected boolean navigationClick(int status, int time) {
Main.getUiApplication().popScreen(mainscreen);
return true;
}
};
add(backbtn);
}
if (left == 1) {
field = getField(1);
layoutChild(field, back.getWidth(), back.getHeight());
setPositionChild(field, 10, Height);
} else if (left == 2) {
field = getField(1);
layoutChild(field, news.getWidth(), news.getHeight());
setPositionChild(field, 10, Height);
}如果我像这样设置layoutChild(field, 60, 60);，那么它就没有问题了，后面的灰色就不再有了。但是，我不能设置固定大小，而必须设置动态大小。
回答 2
Stack Overflow用户
回答已采纳
发布于 2012-07-19 17:53:56
在Custom_ButtonField中调用此setBackground(BackgroundFactory.createBitmapBackground(bitmap));而不是graphics.drawBitmap(0, 0, bitmap.getWidth(), bitmap.getHeight(), bitmap, 0, 0);。
Stack Overflow用户
发布于 2012-07-19 16:05:41
我看不到加载Bitmap对象的实际代码，但我知道您在发布的另一个问题中对此进行了讨论。试试这个：
Config_GlobalFunction.java：
public static Bitmap Bitmap(String name) {
Bitmap result;
// do whatever you do to load the Bitmap (e.g. Bitmap.getBitmapResource(name))
result.createAlpha(Bitmap.ALPHA_BITDEPTH_8BPP);
return result;
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/11553286
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