改变androidstudio TextView的风格 [英] change the textview style in androidstudio
本文介绍了改变androidstudio TextView的风格的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我创建了一个名为列表视图和popuplistfragment.java已经list_view.xml.I xml文件中添加的TextView,但我不知道在哪里添加code更改列表视图TextView的。
进口android.app.ListFragment;
进口android.content.Intent;
进口android.os.Bundle;进口android.util.Log;
进口android.view.LayoutInflater;
进口android.view.View;
进口android.view.ViewGroup;进口android.widget.AdapterView;
进口android.widget.AdapterView.OnItemClickListener;
进口android.widget.ArrayAdapter;
进口android.widget.TextView;
进口android.widget.Toast;公共类PopupListFragment扩展ListFragment实现OnItemClickListener {TextView中的TextView;
@覆盖
公共查看onCreateView(LayoutInflater充气器,容器的ViewGroup,捆绑savedInstanceState){
查看查看= inflater.inflate(R.layout.list_item,集装箱,FALSE);
返回视图。
}@覆盖
公共无效onActivityCreated(捆绑savedInstanceState){
super.onActivityCreated(savedInstanceState); ArrayAdapter适配器= ArrayAdapter.createFromResource(getActivity(),R.array.quotes,android.R.layout.simple_list_item_1); setListAdapter(适配器);
getListView()setOnItemClickListener(本)。
}@覆盖
公共无效onItemClick(适配器视图<>母公司,观景,INT位置,长的id){
//Toast.makeText(getActivity(),项目:+位置,Toast.LENGTH_SHORT).show();
字符串项=(字符串)parent.getItemAtPosition(位置);
Log.v(检查,项点击);
意图myIntent =新意图(getActivity(),SwipeViews.class);
myIntent.putExtra(钥匙,项目);
myIntent.putExtra(指数,位置);
startActivity(myIntent);
}}
这是list_view.xml
< LinearLayout中的xmlns:机器人=http://schemas.android.com/apk/res/android
机器人:方向=横向
机器人:layout_width =match_parent
机器人:layout_height =ATTR /列表preferredItemHeight?
机器人:背景=@绘制/ back_listview>
< ListView控件
机器人:ID =@机器人:ID /列表
机器人:layout_width =match_parent
机器人:layout_height =WRAP_CONTENT
机器人:longClickable =假 >
< /&的ListView GT;<的TextView
机器人:ID =@ + ID / text1中
机器人:文字颜色=#e15258
机器人:layout_height =match_parent
机器人:layout_width =0dp
机器人:layout_weight =1
机器人:重力=center_vertical
机器人:paddingLeft =8DP
机器人:paddingRight =8DP
机器人:MAXLINES =1
机器人:ellipsize =结束
机器人:textAppearance =机器人:ATTR / textAppearanceMedium/>< / LinearLayout中>
解决方案
首先,你需要扩展适配器类
公共类ListAdapter扩展ArrayAdapter<串GT; {
的String [] mQuotes;
公共ListAdapter(字符串[]引号){
mQuotes =报价;
}
公共查看getView(INT位置,查看convertView,父母的ViewGroup){
视图V = convertView;
如果(V == NULL){
LayoutInflater layoutInflater = LayoutInflater.from(的getContext());
V = layoutInflater.inflate(R.layout.itemlistrow,NULL);
}
TextView的quoteTextView = v.findViewById(R.id.quote_textView);
quoteTextView.setText(mQuotes [位置])
返回伏;
} @覆盖
公众诠释的getCount(){
返回quotes.length;
}
}
然后实现其他方法。
下一步就是要改变下一个code
@覆盖
公共无效onActivityCreated(捆绑savedInstanceState){
super.onActivityCreated(savedInstanceState);
的String [] = QuoteArray getResources()getStringArray(R.array.quotes)。
ListAdapter适配器=新ListAdapter(QuoteArray); setListAdapter(适配器);
getListView()setOnItemClickListener(本)。
}
然后加入itemlistrow.xml到布局文件夹,并改变它,以便:
<?XML版本=1.0编码=UTF-8&GT?;
< LinearLayout中的xmlns:机器人=http://schemas.android.com/apk/res/android
机器人:方向=横向
机器人:layout_width =match_parent
机器人:layout_height =match_parent> <的TextView
机器人:ID =@ + ID / quote_textView
机器人:layout_width =WRAP_CONTENT
机器人:layout_height =WRAP_CONTENT/>< / LinearLayout中>
您可以自定义itemlistrow.xml只要你想
I have created a listview called popuplistfragment.java and list_view.xml.I have added textview in xml file but I dont know where to add code to change the textview in the listview.
import android.app.ListFragment;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.TextView;
import android.widget.Toast;
public class PopupListFragment extends ListFragment implements OnItemClickListener {
TextView textview;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.list_item, container, false);
return view;
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
ArrayAdapter adapter = ArrayAdapter.createFromResource(getActivity(), R.array.quotes, android.R.layout.simple_list_item_1);
setListAdapter(adapter);
getListView().setOnItemClickListener(this);
}
@Override
public void onItemClick(AdapterView<?> parent, View view, int position,long id) {
//Toast.makeText(getActivity(), "Item: " + position, Toast.LENGTH_SHORT).show();
String item = (String) parent.getItemAtPosition(position);
Log.v("check", "item is clicked");
Intent myIntent = new Intent(getActivity(), SwipeViews.class);
myIntent.putExtra("key", item);
myIntent.putExtra("index", position);
startActivity(myIntent);
}
}
And this is the list_view.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="?attr/listPreferredItemHeight"
android:background="@drawable/back_listview">
<ListView
android:id="@android:id/list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:longClickable="false"
>
</ListView>
<TextView
android:id="@+id/text1"
android:textColor="#e15258"
android:layout_height="match_parent"
android:layout_width="0dp"
android:layout_weight="1"
android:gravity="center_vertical"
android:paddingLeft="8dp"
android:paddingRight="8dp"
android:maxLines="1"
android:ellipsize="end"
android:textAppearance="?android:attr/textAppearanceMedium" />
</LinearLayout>
解决方案
Firstly you need to extend Adapter class
public class ListAdapter extends ArrayAdapter<String> {
String [] mQuotes;
public ListAdapter(String [] quotes){
mQuotes = quotes;
}
public View getView(int position, View convertView, ViewGroup parent) {
View v = convertView;
if (v == null) {
LayoutInflater layoutInflater = LayoutInflater.from(getContext());
v = layoutInflater.inflate(R.layout.itemlistrow, null);
}
TextView quoteTextView = v.findViewById(R.id.quote_textView);
quoteTextView.setText(mQuotes[position])
return v;
}
@Override
public int getCount() {
return quotes.length;
}
}
Then implement other methods. The next step is to change next code
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
String [] QuoteArray = getResources().getStringArray(R.array.quotes);
ListAdapter adapter = new ListAdapter(QuoteArray);
setListAdapter(adapter);
getListView().setOnItemClickListener(this);
}
Then add itemlistrow.xml to Layout folder and change it so:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/quote_textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
</LinearLayout>
You can customize itemlistrow.xml as you want
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