这是我的布局:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/day_frame"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="4dip"
android:orientation="vertical" >
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:orientation="vertical"
android:padding="2dip" >
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="1dip" >
<ImageView
android:id="@+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="1dip"
android:src="@drawable/marca_bike_event" />
<ImageView
android:id="@+id/imageView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="1dip"
android:src="@drawable/marca_bike_event" />
<ImageView
android:id="@+id/imageView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="1dip"
android:src="@drawable/marca_bike_event" />
<ImageView
android:id="@+id/imageView4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="1dip"
android:src="@drawable/marca_bike_event" />
<ImageView
android:id="@+id/imageView5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="1dip"
android:src="@drawable/marca_bike_event" />
<ImageView
android:id="@+id/imageView6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/marca_bike_event" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="1dip" >
<ImageView
android:id="@+id/imageView7"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="1dip"
android:src="@drawable/marca_bike_event" />
<ImageView
android:id="@+id/imageView8"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="1dip"
android:src="@drawable/marca_bike_event" />
<ImageView
android:id="@+id/imageView9"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="1dip"
android:src="@drawable/marca_bike_event" />
<ImageView
android:id="@+id/imageView10"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="1dip"
android:src="@drawable/marca_bike_event" />
<ImageView
android:id="@+id/imageView11"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="1dip"
android:src="@drawable/marca_bike_event" />
<ImageView
android:id="@+id/imageView12"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/marca_bike_event" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<ImageView
android:id="@+id/imageView13"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="1dip"
android:src="@drawable/marca_bike_event" />
<ImageView
android:id="@+id/imageView14"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="1dip"
android:src="@drawable/marca_bike_event" />
<ImageView
android:id="@+id/imageView15"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="1dip"
android:src="@drawable/marca_bike_event" />
<ImageView
android:id="@+id/imageView16"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="1dip"
android:src="@drawable/marca_bike_event" />
<ImageView
android:id="@+id/imageView17"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="1dip"
android:src="@drawable/marca_bike_event" />
<ImageView
android:id="@+id/imageView18"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/marca_bike_event" />
</LinearLayout>
<TextView
android:id="@+id/day_number"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="2dip"
android:gravity="right|bottom"
android:textSize="18sp"
android:textStyle="bold" />
</LinearLayout>
</RelativeLayout>
这是我的自定义视图
import java.util.Calendar;
public class DayView extends LinearLayout {
private final boolean belongsToMonth;
private final TextView numberView;
private int racesNum = 0;
private final ImageView iv1, iv2, iv3, iv4, iv5, iv6, iv7, iv8, iv9, iv10,
iv11, iv12, iv13, iv14, iv15, iv16, iv17, iv18;
public DayView(final Context context, final Calendar moving,
final SingleCalendar calendar) {
super(context);
View.inflate(context, R.layout.calendar_week_day, this);
iv1 = (ImageView) findViewById(R.id.imageView1);
iv2 = (ImageView) findViewById(R.id.imageView2);
iv3 = (ImageView) findViewById(R.id.imageView3);
iv4 = (ImageView) findViewById(R.id.imageView4);
iv5 = (ImageView) findViewById(R.id.imageView5);
iv6 = (ImageView) findViewById(R.id.imageView6);
iv7 = (ImageView) findViewById(R.id.imageView7);
iv8 = (ImageView) findViewById(R.id.imageView8);
iv9 = (ImageView) findViewById(R.id.imageView9);
iv10 = (ImageView) findViewById(R.id.imageView10);
iv11 = (ImageView) findViewById(R.id.imageView11);
iv12 = (ImageView) findViewById(R.id.imageView12);
iv13 = (ImageView) findViewById(R.id.imageView13);
iv14 = (ImageView) findViewById(R.id.imageView14);
iv15 = (ImageView) findViewById(R.id.imageView15);
iv16 = (ImageView) findViewById(R.id.imageView16);
iv17 = (ImageView) findViewById(R.id.imageView17);
iv18 = (ImageView) findViewById(R.id.imageView18);
final ImageView[] views = new ImageView[] { iv1, iv2, iv3, iv4, iv5,
iv6, iv7, iv8, iv9, iv10, iv11, iv12, iv13, iv14, iv15, iv16,
iv17, iv18 };
for (final ImageView v : views) {
v.setVisibility(View.INVISIBLE);
}
numberView = (TextView) findViewById(R.id.day_number);
numberView.setText(Integer.toString(moving.get(Calendar.DAY_OF_MONTH)));
setTag(moving.clone());
belongsToMonth = (moving.get(Calendar.MONTH) == calendar.current
.get(Calendar.MONTH));
final Resources res = getResources();
if (!belongsToMonth) {
numberView.setTextColor(res
.getColor(R.color.calendar_unbelonging_dayview_text));
setBackgroundResource(R.drawable.unbelonging_dayview);
} else {
numberView.setTextColor(res
.getColor(R.color.calendar_belonging_dayview_text));
setBackgroundResource((DateParseUtils.areEqualDays(moving,
calendar.today)) ? R.drawable.selected_dayview
: R.drawable.unselected_dayview);
}
}
protected void onMeasure(final int widthMeasureSpec,
public boolean belongsToMonth() {
public Calendar getCalendar() {
public void addRace(final ParseObject carrera) {
final ImageView[] views = new ImageView[] { iv1, iv2, iv3, iv4, iv5,
iv6, iv7, iv8, iv9, iv10, iv11, iv12, iv13, iv14, iv15, iv16,
iv17, iv18 };
if (racesNum < views.length) {
final ImageView iv = views[racesNum];
final int id = getRaceId(carrera);
iv.setImageDrawable(getContext().getResources().getDrawable(id));
for (int i = 0; i < views.length; i++) {
final ImageView iv2 = views[i];
if (i <= racesNum) {
iv2.setVisibility(View.VISIBLE);
} else {
iv2.setVisibility(View.INVISIBLE);
}
}
racesNum++;
}
}
private int getRaceId(final ParseObject carrera) {
final String disciplina = carrera.getString("disciplinaId");
if (disciplina.equals(SettingsActivity.ID_BIKE_EVENT)) {
return R.drawable.marca_bike_event;
} else if (disciplina.equals(SettingsActivity.ID_BMX)) {
return R.drawable.marca_bmx;
} else if (disciplina.equals(SettingsActivity.ID_ENDURO)) {
return R.drawable.marca_enduro;
} else if (disciplina.equals(SettingsActivity.ID_FREESTYLE)) {
return R.drawable.marca_freestyle;
} else if (disciplina.equals(SettingsActivity.ID_MOTO_GP)) {
return R.drawable.marca_moto_gp;
} else if (disciplina.equals(SettingsActivity.ID_MOTOCROSS)) {
return R.drawable.marca_motocross;
} else if (disciplina.equals(SettingsActivity.ID_MOTORBIKE_RALLY)) {
return R.drawable.marca_mc_rally;
} else if (disciplina.equals(SettingsActivity.ID_MTB_4X)) {
return R.drawable.marca_mtb_4x;
} else if (disciplina.equals(SettingsActivity.ID_MTB_DH)) {
return R.drawable.marca_mtb_dh;
} else if (disciplina.equals(SettingsActivity.ID_MTB_ENDURO)) {
return R.drawable.marca_mtb_enduro;
} else if (disciplina.equals(SettingsActivity.ID_QUADCROSS)) {
return R.drawable.marca_quad_cross;
} else if (disciplina.equals(SettingsActivity.ID_SUPERBIKE)) {
return R.drawable.marca_superbike;
} else if (disciplina.equals(SettingsActivity.ID_SUPERMOTO)) {
return R.drawable.marca_supermoto;
} else if (disciplina.equals(SettingsActivity.ID_TRIAL)) {
return R.drawable.marca_trial;
} else if (disciplina.equals(SettingsActivity.ID_URBAN_DH)) {
return R.drawable.marca_urban_dh;
} else if (disciplina.equals(SettingsActivity.ID_XC_RALLIES)) {
return R.drawable.marca_xc_rallies;
}
return R.drawable.marca_other_event;
}
}
addRace
是通过OnPostExecute
的{{1}}方法调用的。但是,它不会使任何ImageViews可见。我已调试它在AsyncTask
行上放置一个断点,它实际上在主线程上调用了setVisibility,但它不起作用。尝试更改ImageView drawable也不起作用。
我已尝试设置其可见性并更改构造函数上的drawable,并且它可以正常工作。似乎setVisibility
方法似乎什么都不做。
我错过了什么吗?
答案 0 :(得分:1)
好的,解决了。
我的DayView
是在ArrayAdapter<Calendar>
上动态创建的。我所要做的只是在getView
的{{1}}方法中执行所有视图操作,然后调用ArrayAdapter
而不是尝试直接修改它们。
另外,我必须使用ViewHolder模式才能正确完成修改。
答案 1 :(得分:0)
您尝试从后台ImageView
设置Async thread
的可见性。
您无法直接访问来自后台主题的访问视图!
您可以使用Handler
,并在下一个方法中更新您的观看次数
public void handleMessage(Message msg) {
super.handleMessage(msg);
// update views here
}
或者您可以直接在代码中使用下一个示例代码:
imageView.post(new Runnable() {
@Override
public void run() {
imageView.setVisibility(View.VISIBLE));
}
});
答案 2 :(得分:0)
在
的情况下,总是为我工作的最后手段.setVisibility(VISIBLE/INVISIBLE/GONE) ;
失败的是添加/删除附加到ViewGroup的布局。将其发布到View线程,它将完成工作:
m_viewIsVisible=/false/true; //set before hand
public void run()
{
try
{
if (!m_viewIsVisible)
RootView.rootGroop().removeView(currentLayout);
else
RootView.rootGroop().addView(currentLayout);
} catch (Exception ex)
{
Log.e(TAG, "-Add/Remove layout throws exception:: " + ex.toString());
}
}
此处currentLayout是您想要显示/隐藏的顽固布局。 RootView.rootGroop()为我提供了currentLayout所属的ViewGroup。 您应该将自己的逻辑应用于保持并获取对父ViewGroup的引用。