Java 在另一个imageview和textview中设置列表视图项的图像和文本
我有一组图像和字符串,如下所示:Java 在另一个imageview和textview中设置列表视图项的图像和文本,java,android,listview,Java,Android,Listview,我有一组图像和字符串,如下所示: String[] stations = new String[] { "GHOTKI 91 Radio FM","UmerKot 91.4 Radio","TMK 100.20 Radio" }; public static int [] images ={R.drawable.ghotkifmlogo,R.drawable.umerkotfmlogo,R.drawable.tmkfmlogo}; lv_tracks.setOnIte
String[] stations = new String[] {
"GHOTKI 91 Radio FM","UmerKot 91.4 Radio","TMK 100.20 Radio"
};
public static int [] images ={R.drawable.ghotkifmlogo,R.drawable.umerkotfmlogo,R.drawable.tmkfmlogo};
lv_tracks.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
mSelectedTrackTitle.setText(stations[position]);
mSelectedTrackImage.setImageResource(images[position]);
}
在自定义列表视图中,如何在另一个图像视图和文本视图中替换它们
我需要每次使用单击项目的图像和文本更改imageview和textview
这是我的自定义适配器:
public class TrackAdapter extends BaseAdapter{
String [] description;
Context context;
int [] imageId;
public TrackAdapter(Context c, String[] d, int[] prgmImages) {
description=d;
context= c;
imageId=prgmImages;
}
@Override
public int getCount() {
return description.length;
}
@Override
public Object getItem(int position) {
return position;
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
if(convertView == null){
convertView = LayoutInflater.from(context).inflate(R.layout.cardviewlayout,null);
}
//get the textview and set its text
TextView tv=(TextView) convertView.findViewById(R.id.tracktitle);
//get the img view and set its img icon
ImageView im=(ImageView) convertView.findViewById(R.id.trackimage);
tv.setText(description[position]);
im.setImageResource(imageId[position]);
return convertView;
}
以下是主要活动:
private TextView mSelectedTrackTitle;
private ImageView mSelectedTrackImage;
private MediaPlayer mMediaPlayer;
private ImageView mPlayerControl;
ListView lv_tracks;
TrackAdapter track_adapter;
String[] stations = new String[] {
"GHOTKI 91 Radio FM","UmerKot 91.4 Radio","TMK 100.20 Radio"
};
public static int [] images ={R.drawable.ghotkifmlogo,R.drawable.umerkotfmlogo,R.drawable.tmkfmlogo};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mMediaPlayer = new MediaPlayer();
//get a reference to our ListView so we can associate it with our custom ArrayAdapter
lv_tracks = (ListView) findViewById(R.id.track_list);
//create a new CustomAdapter
track_adapter =new TrackAdapter(this,stations,images);
lv_tracks.setAdapter(track_adapter);//connect the ListView with myCustomAdapter
//Want to set selected image and title here in these
mSelectedTrackTitle = (TextView)findViewById(R.id.selected_track_title);
mSelectedTrackImage =(ImageView)findViewById(R.id.selected_track_image);
lv_tracks.setOnItemClickListener(new AdapterView.OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
??
}
private TextView mSelectedTrackTitle;
私有图像视图mSelectedTrackImage;
私有媒体层;
私有图像视图mPlayerControl;
ListView lv_轨道;
轨道适配器轨道适配器;
字符串[]站=新字符串[]{
“GHOTKI 91调频收音机”、“UmerKot 91.4收音机”、“TMK 100.20收音机”
};
public static int[]image={R.drawable.ghotkifmlogo,R.drawable.umerkotfmllogo,R.drawable.tmkfmlogo};
@凌驾
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mMediaPlayer=新媒体播放器();
//获取对ListView的引用,以便将其与自定义ArrayAdapter关联
lv_轨迹=(ListView)findViewById(R.id.track_列表);
//创建新的CustomAdapter
track_adapter=新的TrackAdapter(此、站点、图像);
lv_tracks.setAdapter(track_adapter);//将ListView与myCustomAdapter连接
//要在这些中设置所选图像和标题吗
mSelectedTrackTitle=(TextView)findViewById(R.id.selected\u track\u title);
mSelectedTrackImage=(ImageView)findViewById(R.id.selected\u track\u image);
lv_tracks.setOnItemClickListener(新的AdapterView.OnItemClickListener(){
public void onItemClick(AdapterView父级、视图、,
内部位置,长id){
??
}
我真的不明白如何处理OnItemSelecthere。
为了更改图像和文本。您可以使用listviewOnItemClickListener获取当前项目位置,它将返回所单击项目的位置,然后您可以使用此位置作为所需操作
lv_tracks.setOnItemClickListener(new AdapterView.OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
mSelectedTrackTitle.setText(stations[position]);
mSelectedTrackImage.setImageDrawable(ContextCompat.getDrawable(this,images [position]));
// or
mSelectedTrackImage.setImageResource(images [position]);
}
lv_tracks.setOnItemClickListener(新的AdapterView.OnItemClickListener(){
public void onItemClick(AdapterView父级、视图、,
内部位置,长id){
mSelectedTrackTitle.setText(站[位置]);
mSelectedTrackImage.setImageDrawable(ContextCompat.getDrawable(这是图像[位置]);
//或
mSelectedTrackImage.setImageResource(图像[位置]);
}
试试这样的方法
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
mSelectedTrackTitle.setText( stations[position] );
mSelectedTrackImage.setImageResource( images[positions] );
}
public void onItemClick(AdapterView父视图、视图视图、整型位置、长id){
mSelectedTrackTitle.setText(站[位置]);
mSelectedTrackImage.setImageResource(图像[位置]);
}
它将从阵列中单击的位置获取站点名称和图像,并更新您的视图。您可以这样实现:
String[] stations = new String[] {
"GHOTKI 91 Radio FM","UmerKot 91.4 Radio","TMK 100.20 Radio"
};
public static int [] images ={R.drawable.ghotkifmlogo,R.drawable.umerkotfmlogo,R.drawable.tmkfmlogo};
lv_tracks.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
mSelectedTrackTitle.setText(stations[position]);
mSelectedTrackImage.setImageResource(images[position]);
}
lv_tracks.setOnItemClickListener(新的AdapterView.OnItemClickListener(){
@凌驾
public void onItemClick(AdapterView父对象、视图、整型位置、长id){
mSelectedTrackTitle.setText(站[位置]);
mSelectedTrackImage.setImageResource(图像[位置]);
}
是否要移动到onItem中的下一项单击否,我要替换imageview和textview(当前分别没有图像源和文本)点击项目的图像和文本。无论何时点击。您都可以使用listviewOnItemClickListener
获取它,它返回点击项目的位置,然后您可以使用此位置作为所需操作是的。我不知道如何设置?这实际上是我的问题。天哪。谢谢!!工作得很好。