Java 当我放置背景时,android复选框加倍
我试图将自定义背景设置为复选框,但它翻了一倍,我不知道为什么 我的主要活动:Java 当我放置背景时,android复选框加倍,java,android,checkbox,drawable,Java,Android,Checkbox,Drawable,我试图将自定义背景设置为复选框,但它翻了一倍,我不知道为什么 我的主要活动: protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); CheckBox cb = new CheckBox(getApplicationContext()); DrawableCheckButto
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
CheckBox cb = new CheckBox(getApplicationContext());
DrawableCheckButton d = new DrawableCheckButton(getApplicationContext());
cb.setBackgroundDrawable(d);
setContentView(cb);
}
DrawableCheckButton类:
public class DrawableCheckButton extends StateListDrawable {
public DrawableCheckButton(Context context) {
int[] state_checked = { android.R.attr.state_checked };
int[] state_active = { android.R.attr.state_enabled };
CustomDrawableCheckButton d = new CustomDrawableCheckButton(context);
CustomDrawableCheckButton2 d2 = new CustomDrawableCheckButton2(context);
addState(state_checked, d);
addState(state_active, d2);
}
}
另一个类看起来像这样
public class CustomDrawableCheckButton extends Drawable{
private Context context;
public CustomDrawableCheckButton(Context context) {
// TODO Auto-generated constructor stub
this.context = context;
}
@Override
public void draw(Canvas canvas) {
Path path1 = new Path();
Paint paint1 = new Paint();
path1.moveTo(0, 3);
path1.lineTo(17, 3);
path1.moveTo(0, 3);
path1.lineTo(0, 23);
path1.lineTo(20, 23);
path1.lineTo(20, 14);
paint1.setColor(context.getResources().getColor(R.color.orange));
paint1.setStrokeWidth(1);
paint1.setStyle(Paint.Style.STROKE);
//
Path path2 = new Path();
Paint paint2 = new Paint();
path2.moveTo(4,10);
path2.lineTo(10, 16);
path2.lineTo(22, 4);
paint2.setColor(context.getResources().getColor(R.color.purple));
paint2.setStrokeWidth(5);
paint2.setStyle(Paint.Style.STROKE);
canvas.drawPath(path1, paint1);
canvas.drawPath(path2, paint2);
}
我需要一些帮助。这是我的建议:
在
main活动
中,应避免使用ApplicationContext
,有关详细信息,请参阅此,并使用setButtonDrawable
而不是setBuckGroundDrawable
:
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
CheckBox cb = new CheckBox(this);
DrawableCheckButton d = new DrawableCheckButton(this);
cb.setButtonDrawable(d);
setContentView(cb);
}
在DrawableCheckButton
中:
public DrawableCheckButton(Context context) {
CustomDrawableCheckButton d = new CustomDrawableCheckButton(context);
addState(new int[]{android.R.attr.state_checked }, d);
CustomDrawableCheckButton2 d2 = new CustomDrawableCheckButton2(context);
addState(new int[]{}, d2);
}
希望这能有所帮助。请让我知道它是否有效。答案是我没有做cb.setBackgroundDrawable(),而是做了cb.setButtonDrawable()。背景代表全部,按钮代表标记 你说加倍是什么意思?你有截图吗?因为复选框在复选标记中,而不是背景中,我想说对不起,我找到了答案,它更简单。我没有做cb.setBackgroundDrawable(),而是做了cb.setButtonDrawable()。背景是全部,按钮是标记。对不起,前面的答案,我已经为遇到相同问题的任何人更新了它。