如何在Android中将TextView添加到GridView中

本文介绍了如何在Android中将TextView添加到GridView中的处理方法，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

我已经知道如何将String添加到android的gridView中，但是我想添加textviews来格式化文本（重力，颜色等）。这是我目前的代码：

GridView gridView =（GridView）findViewById（R.id.grades）; ArrayList< TextView> display = new ArrayList< TextView>（）; ArrayAdapter< TextView> adapter = new ArrayAdapter< TextView>（this， android.R.layout.simple_list_item_1，display）; gridView.setAdapter（adapter）; for（int i = 0; i< currentClass.grades.size（）; i ++） { TextView name = new TextView（this）; TextView weight = new TextView（this）; TextView cur_points = new TextView（this）; TextView total_points = new TextView（this）; TextView cur_percent = new TextView（this）; name.setText（currentClass.grades.get（i）.name）; weight.setText（currentClass.grades.get（i）.weight）; cur_points.setText（currentClass.grades.get（i）.cur_points）; total_points.setText（currentClass.grades.get（i）.total_points）; cur_percent.setText（currentClass.grades.get（i）.cur_percent）; name.setTextColor（Color.WHITE）; weight.setTextColor（Color.WHITE）; cur_points.setTextColor（Color.WHITE）; total_points.setTextColor（Color.WHITE）; cur_percent.setTextColor（Color.WHITE）; name.setSingleLine（true）; weight.setSingleLine（true）; cur_points.setSingleLine（true）; total_points.setSingleLine（true）; cur_percent.setSingleLine（true）; name.setGravity（Gravity.LEFT）; weight.setGravity（Gravity.RIGHT）; cur_points.setGravity（Gravity.RIGHT）; total_points.setGravity（Gravity.RIGHT）; cur_percent.setGravity（Gravity.RIGHT）; display.add（name）; display.add（weight）; display.add（cur_points）; display.add（total_points）; display.add（cur_percent）; adapter.notifyDataSetChanged（）; }

不幸的是，当我运行它时，gridview只是给了我每个TextView的信息： android.id.widget.TextView（{42f20a88等等}。

如何将textview添加到gridView？

解决方案

使用类似的方法尝试它 $ b $ p gridview.xml

<？xml version =1.0encoding =utf-8？> < GridView xmlns：android =http： //schemas.android/apk/res/android android：id =@ + id / gridView1 android：numColumns =auto_fit android：gravity =center android：columnWidth =100dp android：stretchMode =columnWidth android：layout_width =fill_parent android：layout_height =fill_parent> < / GridView>

item.xml

< TextView android：id =@ + id / grid_item_label android： layout_width =wrap_content android：layout_height =wrap_content android：text =@ + id / label android：layout_marginTop =5px 15px> < / TextView>

textView自定义适配器类

public class TextViewAdapter extends BaseAdapter { private context context; private final String [] textViewValues; public TextViewAdapter（Context context，String [] textViewValues）{ this.context = context; this.textViewValues = textViewValues; } public View getView（int position，View convertView，ViewGroup parent）{ LayoutInflater inflater =（LayoutInflater）context .getSystemService（Context .LAYOUT_INFLATER_SERVICE）; 查看gridView; if（convertView == null）{ gridView = new View（context）; //从mobile.xml获取布局 gridView = inflater.inflate（R.layout.item，null）; //将值设置为textview TextView textView =（TextView）gridView .findViewById（R.id.grid_item_label）; textView.setText（textViewValues [position]）; } else { gridView =（View）convertView; } 返回gridView; } @Override public int getCount（）{ return textViewValues.length; } @Override public Object getItem（int position）{ return null; } @Override public long getItemId（int position）{ return 0; } }

然后，最后设置适配器您的主要类

pre $ gridView.setAdapter（new TextViewAdapter（this，YOUR_ARRAY_WITH_TEXT_FOR_TEXTVIEWS））;

还要注意，您可以传递任何其他值，如文本的颜色和构造函数中的另一个参数，然后设置它们在适配器中就像...

textView.setColor（textViewColors [position]）;

对于所有textview共有的属性，您只能更改item.xml :) $ b $希望它能帮助你......

I already know how to add String's to a gridView in android however I want to add textviews to format the text( Gravity, color, etc). This is my current code:

GridView gridView = (GridView) findViewById(R.id.grades); ArrayList<TextView> display = new ArrayList<TextView>(); ArrayAdapter<TextView> adapter = new ArrayAdapter<TextView>(this, android.R.layout.simple_list_item_1, display); gridView.setAdapter(adapter); for(int i = 0; i<currentClass.grades.size(); i++) { TextView name = new TextView(this); TextView weight = new TextView(this); TextView cur_points = new TextView(this); TextView total_points = new TextView(this); TextView cur_percent = new TextView(this); name.setText(currentClass.grades.get(i).name); weight.setText(currentClass.grades.get(i).weight); cur_points.setText(currentClass.grades.get(i).cur_points); total_points.setText(currentClass.grades.get(i).total_points); cur_percent.setText(currentClass.grades.get(i).cur_percent); name.setTextColor(Color.WHITE); weight.setTextColor(Color.WHITE); cur_points.setTextColor(Color.WHITE); total_points.setTextColor(Color.WHITE); cur_percent.setTextColor(Color.WHITE); name.setSingleLine(true); weight.setSingleLine(true); cur_points.setSingleLine(true); total_points.setSingleLine(true); cur_percent.setSingleLine(true); name.setGravity(Gravity.LEFT); weight.setGravity(Gravity.RIGHT); cur_points.setGravity(Gravity.RIGHT); total_points.setGravity(Gravity.RIGHT); cur_percent.setGravity(Gravity.RIGHT); display.add(name); display.add(weight); display.add(cur_points); display.add(total_points); display.add(cur_percent); adapter.notifyDataSetChanged(); }

Unfortunately when I run it the gridview simply gives me the information of each TextView: "android.id.widget.TextView({42f20a88 and so on}.

How would I add textview's to a gridView?

解决方案

try it with something like this

gridview.xml

<?xml version="1.0" encoding="utf-8"?> <GridView xmlns:android="schemas.android/apk/res/android" android:id="@+id/gridView1" android:numColumns="auto_fit" android:gravity="center" android:columnWidth="100dp" android:stretchMode="columnWidth" android:layout_width="fill_parent" android:layout_height="fill_parent" > </GridView>

item.xml

<TextView android:id="@+id/grid_item_label" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@+id/label" android:layout_marginTop="5px" android:textSize="15px" > </TextView>

Custom adapter class for textView

public class TextViewAdapter extends BaseAdapter { private Context context; private final String[] textViewValues; public TextViewAdapter(Context context, String[] textViewValues) { this.context = context; this.textViewValues = textViewValues; } public View getView(int position, View convertView, ViewGroup parent) { LayoutInflater inflater = (LayoutInflater) context .getSystemService(Context.LAYOUT_INFLATER_SERVICE); View gridView; if (convertView == null) { gridView = new View(context); // get layout from mobile.xml gridView = inflater.inflate(R.layout.item, null); // set value into textview TextView textView = (TextView) gridView .findViewById(R.id.grid_item_label); textView.setText(textViewValues[position]); } else { gridView = (View) convertView; } return gridView; } @Override public int getCount() { return textViewValues.length; } @Override public Object getItem(int position) { return null; } @Override public long getItemId(int position) { return 0; } }

and then , finally set adapter in your main class

gridView.setAdapter(new TextViewAdapter(this, YOUR_ARRAY_WITH_TEXT_FOR_TEXTVIEWS));

also note that you can pass any other values like color of text and as another argument in constructor and then set them in adapter like ...

textView.setColor(textViewColors[position]);

for attributes that all textview have in common you can change the item.xml only :) i hope it helped you ....