Android 如何更改微调器文本大小和文本颜色?
在我的Android应用程序中,我使用spinner,我已经将SQLite数据库中的数据加载到spinner中,它工作正常。这是代码Android 如何更改微调器文本大小和文本颜色?,android,spinner,Android,Spinner,在我的Android应用程序中,我使用spinner,我已经将SQLite数据库中的数据加载到spinner中,它工作正常。这是代码 Spinner spinner = (Spinner) this.findViewById(R.id.spinner1); List<String> list = new ArrayList<String>(); ArrayAdapter<String> dataAdapter = new ArrayAdapter<Str
Spinner spinner = (Spinner) this.findViewById(R.id.spinner1);
List<String> list = new ArrayList<String>();
ArrayAdapter<String> dataAdapter = new ArrayAdapter<String> (this,android.R.layout.simple_spinner_item, list);
cursor.moveToFirst();
list.add("All Lists");
if (cursor.getCount() > 0) {
for (int i = 0; i < cursor.getCount(); i++) {
keyList[i] = cursor.getString(cursor.getColumnIndex(AndroidOpenDbHelper.KEYWORD));
list.add(keyList[i]);
cursor.moveToNext();
}
}
Database.close();
cursor.close();
dataAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(dataAdapter);
如何更改微调器的文本颜色和文本大小?为微调器项目创建自定义XML文件 spinner\u item.xml:
<style name="mySpinnerItemStyle" parent="@android:style/Widget.Holo.DropDownItem.Spinner">
<item name="android:textSize">@dimen/_11ssp</item>
<item name="android:textColor">@color/blue</item>
<item name=...</item>
</style>
val textView = (view.getChildAt(0) as TextView)
textView.setTextColor(resources.getColor(R.color.dark_mode))
为此文件中的文本指定自定义颜色和大小
<?xml version="1.0" encoding="utf-8"?>
<TextView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="20sp"
android:gravity="left"
android:textColor="#FF0000"
android:padding="5dip"
/>
<?xml version="1.0" encoding="utf-8"?>
<TextView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
style="?android:attr/spinnerItemStyle"
android:singleLine="true"
android:ellipsize="marquee"
android:textAlignment="inherit"
android:textSize="15sp"
android:textColor="#FF0000"
android:padding="5dp"
/>
现在使用此文件显示微调器项,如:
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, R.layout.spinner_item,list);
ArrayAdapter adapter=新的ArrayAdapter(此,R.layout.spinner\u项,列表);
您不需要设置下拉资源。只需要spinner\u item.xml
就可以在spinner中显示您的项目。简单明了…:
private OnItemSelectedListener OnCatSpinnerCL = new AdapterView.OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> parent, View view, int pos, long id) {
((TextView) parent.getChildAt(0)).setTextColor(Color.BLUE);
((TextView) parent.getChildAt(0)).setTextSize(5);
}
public void onNothingSelected(AdapterView<?> parent) {
}
};
private OnItemSelectedListener OnCatSpinnerCL=new AdapterView.OnItemSelectedListener(){
已选择公共位置(AdapterView父项、视图、整数位置、长id){
((TextView)parent.getChildAt(0)).setTextColor(Color.BLUE);
((TextView)parent.getChildAt(0)).setTextSize(5);
}
未选择公共无效(AdapterView父级){
}
};
Ashraf解决方案的另一个变体是确保您考虑了屏幕大小。设置适配器后,需要在onCreate中获取微调器并设置侦听器:
//set your adapter with default or custom spinner cell, then://
serverSpinner.setOnItemSelectedListener(spinnerSelector);
serverSpinner.setSelection(defaultServer);
spinner.setSelection(0, true);
View v = spinner.getSelectedView();
((TextView)v).setTextColor(backgroundColor);
然后,可以开始更改在单击微调器之前显示的视图的文本大小:
private AdapterView.OnItemSelectedListener spinnerSelector = new AdapterView.OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> parent, View view, int pos, long id) {
boolean tabletSize = getResources().getBoolean(R.bool.isTablet);
boolean largeTablet = getResources().getBoolean(R.bool.isLargeTablet);
if (tabletSize) { ((TextView)parent.getChildAt(0)).setTextSize(16); }
else if (largeTablet) { ((TextView)parent.getChildAt(0)).setTextSize(18); }
else { ((TextView)parent.getChildAt(0)).setTextSize(12); }
}
public void onNothingSelected(AdapterView<?> parent) {
}
};
private AdapterView.OnItemSelectedListener spinnerSelector=new AdapterView.OnItemSelectedListener(){
已选择公共位置(AdapterView父项、视图、整数位置、长id){
boolean tabletSize=getResources().getBoolean(R.bool.isTablet);
boolean largeTablet=getResources().getBoolean(R.bool.isLargeTablet);
if(tabletSize){((TextView)parent.getChildAt(0)).setTextSize(16);}
else if(largeTablet){((TextView)parent.getChildAt(0)).setTextSize(18);}
else{((TextView)parent.getChildAt(0)).setTextSize(12);}
}
未选择公共无效(AdapterView父级){
}
};
您只需创建布局特定的文件夹,如下所示:
ArrayAdapter<String> adapter = new ArrayAdapter<String(Context,R.layout.spinner_item, spinnerlist);
<style name="mySpinnerItemStyle" parent="ThemeOverlay.AppCompat.Dark">
<item name="android:textColor">#000</item>
<item name="android:color">#000</item>
</style>
值-sw360dp
值-sw600dp
值-sw800dp
然后将名为“bool.xml”的xml文件添加到每个文件夹中:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<bool name="isTablet">false</bool>
<bool name="isLargeTablet">false</bool>
</resources>
假的
假的
如果所有微调器的TextView项可能具有相同的文本颜色,另一种方法是为微调器下拉项使用自定义样式:
在res/values/styles.xml
中:
<resources>
<style name="AppBaseTheme" parent="android:Theme.Light">
</style>
<style name="AppTheme" parent="AppBaseTheme">
<item name="android:spinnerDropDownItemStyle">@style/mySpinnerItemStyle</item>
</style>
<style name="mySpinnerItemStyle" parent="@android:style/Widget.Holo.DropDownItem.Spinner">
<item name="android:textColor">@color/my_spinner_text_color</item>
</style>
</resources>
@样式/mySpinnerItemStyle
@颜色/我的\u微调器\u文本\u颜色
并在res/values/colors.xml中定义自定义颜色:
<color name="my_spinner_text_color">#808080</color>
#808080
如果您想在微调器上使用Android的内部小尺寸布局,您应该使用:
“android.R.layout.simple\u gallery\u item”而不是“android.R.layout.simple\u spinner\u item”
最简单的:对我有用
TextView spinnerText = (TextView) spinner.getChildAt(0);
spinnerText.setTextColor(Color.RED);
只要用这个:
madaptor.setDropDownViewResource(android.R.layout.simple_gallery_item);
ArrayAdapter<String> adapter_category = new ArrayAdapter<String>(this,
R.layout.spinner_list_item, categories);
adapter_category
.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
ArrayAdapter\u category=新的ArrayAdapter(此,
R.layout.spinner\u列表\u项目、类别);
适配器类别
.setDropDownViewResource(android.R.layout.simple\u微调器\u下拉菜单\u项);
重复使用/更改android.R.layout资源的最简单方法就是去定义。在Android Studio中,在Android.R.layout.simple\u spinner\u item.xml上执行Ctrl+B
它将带您到资源文件。只需复制资源文件并在Package.R.layout文件夹中添加新布局,并根据需要更改textview的textColor,然后在适配器中调用它,如下所示:
ArrayAdapter<String> adapter = new ArrayAdapter<String(Context,R.layout.spinner_item, spinnerlist);
<style name="mySpinnerItemStyle" parent="ThemeOverlay.AppCompat.Dark">
<item name="android:textColor">#000</item>
<item name="android:color">#000</item>
</style>
ArrayAdapter adapter=new ArrayAdapter这里有一个链接,可以帮助您更改微调器的颜色:
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@android:id/text1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="20sp"
android:textColor="#ff0000" />
<?xml version="1.0" encoding="utf-8"?>
<CheckedTextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@android:id/text1"
style="?android:attr/spinnerDropDownItemStyle"
android:maxLines="1"
android:layout_width="match_parent"
android:layout_height="?android:attr/listPreferredItemHeight"
android:ellipsize="marquee"
android:textColor="#aa66cc"/>
就是这样。为了防止滞后,您不仅需要在所选的侦听器中设置文本属性,还需要在活动的onCreate
方法中设置文本属性(但这有点棘手)
具体来说,设置适配器后,需要将其放入onCreate
:
//set your adapter with default or custom spinner cell, then://
serverSpinner.setOnItemSelectedListener(spinnerSelector);
serverSpinner.setSelection(defaultServer);
spinner.setSelection(0, true);
View v = spinner.getSelectedView();
((TextView)v).setTextColor(backgroundColor);
然后将其放入选中的中:
((TextView) view).setTextColor(backgroundColor);
以下是一个完整的示例:
@Override
protected void onCreate(Bundle savedInstanceState)
{
Spinner spinner = (Spinner) findViewById(R.id.spinner);
//Set the choices on the spinner by setting the adapter.
spinner.setAdapter(new SpinnerAdapter(toolbar.getContext(), new String[]{"Overview", "Story", "Specifications", "Poll", "Video"}, accentColor, backgroundColor));
//Set the text color of the Spinner's selected view (not a drop down list view)
spinner.setSelection(0, true);
View v = spinner.getSelectedView();
((TextView)v).setTextColor(backgroundColor);
//Set the listener for when each option is clicked.
spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener()
{
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id)
{
//Change the selected item's text color
((TextView) view).setTextColor(backgroundColor);
}
@Override
public void onNothingSelected(AdapterView<?> parent)
{
}
});
}
@覆盖
创建时受保护的void(Bundle savedInstanceState)
{
微调器微调器=(微调器)findViewById(R.id.Spinner);
//通过设置适配器在微调器上设置选项。
setAdapter(新的SpinnerAdapter(toolbar.getContext(),新字符串[]{“概述”、“故事”、“规范”、“轮询”、“视频”}、accentColor、backgroundColor));
//设置微调器选定视图(不是下拉列表视图)的文本颜色
微调器选择(0,真);
视图v=spinner.getSelectedView();
(文本视图)v.setTextColor(背景色);
//设置单击每个选项时的侦听器。
spinner.setOnItemSelectedListener(新的AdapterView.OnItemSelectedListener()
{
@凌驾
已选择公共视图(AdapterView父视图、视图视图、整型位置、长id)
{
//更改选定项目的文本颜色
((TextView)视图).setTextColor(backgroundColor);
}
@凌驾
未选择公共无效(AdapterView父级)
{
}
});
}
有关更多详细信息,请参阅。我已按如下方式完成此操作。我使用了getDropDownView()和getView()方法
对打开的微调器使用getDropDownView()
@Override
public View getDropDownView(int position, View convertView, ViewGroup parent) {
View view = convertView;
if (view == null) {
LayoutInflater vi = (LayoutInflater) activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = vi.inflate(R.layout.context_row_icon, null);
}
TextView mTitle = (TextView) view.findViewById(R.id.context_label);
ImageView flag = (ImageView) view.findViewById(R.id.context_icon);
mTitle.setText(values[position].getLabel(activity));
if (!((LabelItem) getItem(position)).isEnabled()) {
mTitle.setTextColor(activity.getResources().getColor(R.color.context_item_disabled));
} else {
mTitle.setTextColor(activity.getResources().getColor(R.color.context_item));
}
return view;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = convertView;
if (view == null) {
LayoutInflater vi = (LayoutInflater) activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = vi.inflate(R.layout.context_row_icon, null);
}
TextView mTitle = (TextView) view.findViewById(R.id.context_label);
ImageView flag = (ImageView) view.findViewById(R.id.context_icon);
mTitle.setText(values[position].getLabel(activity));
mTitle.setTextColor(activity.getResources().getColor(R.color.context_item_disabled));
return view;
}
并对关闭的微调器使用getView()
@Override
public View getDropDownView(int position, View convertView, ViewGroup parent) {
View view = convertView;
if (view == null) {
LayoutInflater vi = (LayoutInflater) activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = vi.inflate(R.layout.context_row_icon, null);
}
TextView mTitle = (TextView) view.findViewById(R.id.context_label);
ImageView flag = (ImageView) view.findViewById(R.id.context_icon);
mTitle.setText(values[position].getLabel(activity));
if (!((LabelItem) getItem(position)).isEnabled()) {
mTitle.setTextColor(activity.getResources().getColor(R.color.context_item_disabled));
} else {
mTitle.setTextColor(activity.getResources().getColor(R.color.context_item));
}
return view;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = convertView;
if (view == null) {
LayoutInflater vi = (LayoutInflater) activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = vi.inflate(R.layout.context_row_icon, null);
}
TextView mTitle = (TextView) view.findViewById(R.id.context_label);
ImageView flag = (ImageView) view.findViewById(R.id.context_icon);
mTitle.setText(values[position].getLabel(activity));
mTitle.setTextColor(activity.getResources().getColor(R.color.context_item_disabled));
return view;
}
首先,我们必须为textview
创建简单的xml
资源文件,如下所示:
<?xml version="1.0" encoding="utf-8"?>
<TextView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="20sp"
android:gravity="left"
android:textColor="#FF0000"
android:padding="5dip"
/>
并保存它。在适配器列表上设置后。适用于那些想要更改drowdowncon
颜色的用户
你可以这样用
spinner.getBackground().setColorFilter(Color.parseColor("#ffffff"), PorterDuff.Mode.SRC_ATOP);
如果只希望在选定项目中更改文本颜色,则这可能是一种解决方法。它对我有用,也应该对你有用。@Override
public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
TextView textView = (TextView) view;
((TextView) adapterView.getChildAt(0)).setTextColor(Color.RED);
((TextView) adapterView.getChildAt(0)).setTextSize(20);
Toast.makeText(this, textView.getText()+" Selected", Toast.LENGTH_SHORT).show();
}
ArrayAdapter<String> genderAdapter = new ArrayAdapter<String>(getActivity(), R.layout.spinner_text, genderList) {
public View getView(int position, View convertView, ViewGroup parent) {
View v = super.getView(position, convertView, parent);
((TextView) v).setTextSize(TypedValue.COMPLEX_UNIT_DIP, 16);
((TextView) v).setTextColor(Color.parseColor("#676767"));
((TextView) v).setTypeface(vrFont);
return v;
}
public View getDropDownView(int position, View convertView, ViewGroup parent) {
View v = super.getDropDownView(position, convertView, parent);
((TextView) v).setTextSize(TypedValue.COMPLEX_UNIT_DIP, 16);
((TextView) v).setTypeface(vrFont);
((TextView) v).setTextColor(Color.parseColor("#676767"));
if (position == 0) {
((TextView) v).setTextColor(Color.parseColor("#979797"));
}
return v;
}
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/text1"
style="?android:attr/spinnerItemStyle"
android:layout_width="fill_parent"
android:layout_height="40dp"
android:gravity="center_vertical|left"
android:ellipsize="marquee"
android:maxLines="1"
android:textColor="@color/whiteThree" />
<android.support.v7.widget.AppCompatSpinner
android:id="@+id/spefcialFx"
style="@style/Widget.AppCompat.Spinner.Underlined"
android:layout_width="200dp"
android:layout_height="wrap_content"
android:layout_marginLeft="4dp"
android:theme="@style/Spinner"
android:entries="@array/special_fx_arrays"
android:textSize="@dimen/text_size_normal"></android.support.v7.widget.AppCompatSpinner>
<style name="Spinner" parent="Widget.AppCompat.Light.DropDownItem.Spinner">
<item name="android:paddingStart">0dp</item>
<item name="android:paddingEnd">0dp</item>
<item name="android:textColor">@color/white</item>
<item name="android:backgroundTint">@color/red</item>
<item name="android:textSize">14sp</item>
</style>
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
((TextView) parent.getChildAt(0)).setTextColor(Color.WHITE);}
<string-array name="age_array">
<item> 0-6 </item> //No custom colour
<item><font fgcolor='#FF4CD964'> 12+ </font></item> //With custom colour
</string-array>
new ArrayAdapter<String>(getContext(), android.R.layout.simple_spinner_dropdown_item, list()){
@Override
public View getView(int position, View convertView, @NonNull ViewGroup parent) {
View view = super.getView(position, convertView, parent);
//change the color to which ever you want
((CheckedTextView) view).setTextColor(Color.RED);
//change the size to which ever you want
((CheckedTextView) view).setTextSize(5);
//for using sp values use setTextSize(TypedValue.COMPLEX_UNIT_SP, 16);
return view;
}
}
<style name="mySpinnerItemStyle" parent="ThemeOverlay.AppCompat.Dark">
<item name="android:textColor">#000</item>
<item name="android:color">#000</item>
</style>
<Spinner
android:id="@+id/spinnerCategories"
android:layout_width="match_parent"
android:layout_height="wrap_content"
style="@style/mySpinnerItemStyle"
android:layout_margin="5dp" />
String typeroutes[] = {"Select","Direct","Non Stop"};
Spinner typeroute;
typeroute = view.findViewById(R.id.typeroute);
final ArrayAdapter<String> arrayAdapter5 = new ArrayAdapter<String>(
getActivity(), android.R.layout.simple_spinner_item, typeroutes) {
@Override
public boolean isEnabled(int position) {
if (position == 0) {
// Disable the first item from Spinner
// First item will be use for hint
return false;
} else {
return true;
}
}
public View getView(int position, View convertView, ViewGroup parent) {
View v = super.getView(position, convertView, parent);
((TextView) v).setTextSize(TypedValue.COMPLEX_UNIT_DIP, 16);
((TextView) v).setTextColor(Color.parseColor("#ffffff"));
return v;
} ---->in this line very important so add this
@Override
public View getDropDownView(int position, View convertView,
ViewGroup parent) {
View view = super.getDropDownView(position, convertView, parent);
TextView tv = (TextView) view;
if (position == 0) {
// Set the hint text color gray
tv.setTextColor(Color.GRAY);
} else {
tv.setTextColor(Color.BLACK);
}
return view;
}
};
arrayAdapter5.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
typeroute.setAdapter(arrayAdapter5);
<style name="mySpinnerItemStyle" parent="@android:style/Widget.Holo.DropDownItem.Spinner">
<item name="android:textSize">@dimen/_11ssp</item>
<item name="android:textColor">@color/blue</item>
<item name=...</item>
</style>
<Spinner
android:theme="@style/mySpinnerItemStyle"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
val textView = (view.getChildAt(0) as TextView)
textView.setTextColor(resources.getColor(R.color.dark_mode))
<?xml version="1.0" encoding="utf-8"?>
<TextView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
style="?android:attr/spinnerItemStyle"
android:singleLine="true"
android:ellipsize="marquee"
android:textAlignment="inherit"
android:textSize="15sp"
android:textColor="#FF0000"
android:padding="5dp"
/>
ArrayAdapter<String> adapter = new ArrayAdapter<>(this,R.layout.spinner_style,list);
adapter.setDropDownViewResource(R.layout.spinner_style);