问题
the title speaks for itself. I am over several articles, topics and still haven't figured out how to use checkedtextview. I want a listview with checkable items. In the following code i am using a listview and populating it with a string array. But how to change it to checkedtextview?
delete.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:paddingTop="4dip"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:id="@+id/linlay0"
android:background="@color/list_bg">
<TextView
android:id="@+id/TextView00"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#D8D8D8"
android:textColor="#424242"
android:gravity="center_horizontal|center_vertical"
android:textSize="20px"
android:height="40px"
android:textStyle="bold"
/>
<ListView android:id="@+id/ListView01"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
delete_lv.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:gravity="center_vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView
android:id="@+id/list_content"
android:textColor="#222222"
android:gravity="center"
android:text="sample"
android:layout_margin="4dip"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
</LinearLayout>
Delete.java:
public class Delete extends Activity {
ListView lv1;
ArrayAdapter<String> adapter1;
private String lv_items[] = { "Android", "iPhone", "BlackBerry",
"AndroidPeople", "J2ME", "Listview", "ArrayAdapter", "ListItem",
"Us", "UK", "India" };
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.delete);
TextView tv0 = (TextView)findViewById(R.id.TextView00);
tv0.setText("Deletes");
lv1 = (ListView) findViewById(R.id.ListView01);
adapter1 = new ArrayAdapter<String>(Delete.this,R.layout.list_black_text,R.id.list_content, lv_items);
lv1.setAdapter(adapter1);
adapter1.notifyDataSetChanged();
}
}
回答1:
In your xml file you're using textview as list item. Instead of that use CheckedTextView. You can directly drag and drop that from your widgets palette. You can use the CheckedTextView as both TextView and CheckBox. Below is an example if how to use it
<CheckedTextView
xmlns:android="http://schemas.android.com/apk/res/android"
style="@style/NormalText"
android:id="@+id/checkList"
android:paddingLeft="20dip"
android:paddingRight="20dip"
android:paddingTop="10dip"
android:paddingBottom="10dip"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="?android:attr/listPreferredItemHeight"
android:gravity="center_vertical"
android:checkMark="@drawable/our_checkbox"></CheckedTextView>
回答2:
You can use android:drawableLeft to set the checkbox on left. You can use the code snippet below for achieving it.
<CheckedTextView
android:id="@+id/checkedTextView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:drawableLeft="@drawable/custom_radio_check"
android:gravity="center_vertical"
android:textSize="12sp"
android:textColor="#3d484d"
android:paddingLeft="14dp"
android:paddingTop="12dp"
android:paddingBottom="12dp"
/>
This will move your selector to left side of text. You can adjust the rest of the parameters like padding, gravity, etc.
回答3:
This is the code to use the default CheckdTextView in android
<CheckedTextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:checkMark="?android:attr/textCheckMark"
android:paddingLeft="6dip"
android:paddingRight="6dip"
android:checked="true"
android:gravity="center_vertical"
android:text="- Action finished"/>
回答4:
Here is my use in SingleChoiceDialog
1.select_dialog_singlechoice.xml
<?xml version="1.0" encoding="UTF-8"?>
<CheckedTextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@android:id/text1"
style="@style/PopupSelectList"
android:checkMark="@drawable/radio"
android:ellipsize="marquee"
android:gravity="center_vertical"
android:paddingLeft="12.0dip"
android:paddingRight="10.0dip" />
2.style.xml
<style name="PopupSelectList">
<item name="android:textSize">16.0sp</item>
<item name="android:textColor">@color/white</item>
<item name="android:background">@drawable/list_item_selector</item>
<item name="android:layout_width">fill_parent</item>
<item name="android:layout_height">wrap_content</item>
<item name="android:minHeight">@dimen/dialog_select_height</item>
</style>
3.ratio.xml
<?xml version="1.0" encoding="UTF-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@drawable/dot_selected" android:state_checked="true" android:state_window_focused="false"/>
<item android:drawable="@drawable/dot_normal" android:state_checked="false" android:state_window_focused="false"/>
<item android:drawable="@drawable/dot_normal" android:state_checked="false"/>
<item android:drawable="@drawable/dot_selected" android:state_checked="true"/>
</selector>
4.In Adapter's getView
CheckedTextView title = (CheckedTextView) convertView
.findViewById(android.R.id.text1);
title.setText(mItems[position]);
title.setSelected(mCheckedItem == position ? true : false);
title.setCheckMarkDrawable(position == mCheckedItem ? R.drawable.dot_selected
: R.drawable.dot_normal);
回答5:
You can write Custom adapter having CheckBox and textview in adapter layout. Then handle in list's setOnItemClick listener for multiple selection and single selection.
for more you can check this link How to change ListView Selected items color from default to red without using selector
来源：https://stackoverflow.com/questions/6116897/android-how-to-use-checkedtextview