Question

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我正在使用网格视图，其中每个项目包含图像和一些文本。文本大小是动态的。我遇到的问题是当文本太长时，它会被弃用。如果我使用高垂直间距，问题就出现了。但由于每次文本的长度不同，我不能对所有项目使用高垂直间距。对于小文本我没有问题。

我的layout.xml看起来像这样

 <LinearLayout
    android:id="@+id/list_container_layout"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:layout_weight="1"
    android:padding="@dimen/widget_padding"
    android:background="@color/content_layout_bg"
    android:orientation="vertical" >

    <GridView
        android:id="@+id/grid_workflow"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:stretchMode="columnWidth"    
        android:numColumns="auto_fit"
        android:verticalSpacing="@dimen/widget_padding" >

    </GridView>

</LinearLayout>

我的Adapter类看起来像这样：

public class WorkflowAdapter extends ArrayAdapter<String> {

private final Context context;
private final ArrayList<String> nameValues;
private ViewHolder viewHolder;
private final int resourceId;

public WorkflowAdapter(Context context, int resourceId,ArrayList<String> nameValues) {      
    super(context,resourceId,nameValues);
    this.context = context;
    this.nameValues = nameValues;
    this.resourceId = resourceId;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {

    if (convertView == null) {
        LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        convertView = inflater.inflate(resourceId, parent, false);

        viewHolder = new ViewHolder();
        viewHolder.label = (TextView) convertView.findViewById(R.id.txt_workflow_child);

        convertView.setTag(viewHolder);         
    }
    else
    {
        viewHolder = (ViewHolder) convertView.getTag();
    }


    String menuItem = nameValues.get(position);
    viewHolder.label.setText(menuItem);

    return convertView;
}


public class ViewHolder {
    TextView label;     
}
}

我的孩子layout.xml看起来像这样

<LinearLayout
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:background="@drawable/rounded_corner_ed"
    android:orientation="vertical"
    android:padding="@dimen/widget_padding" >

    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="@drawable/workflow_child_bg"
        android:orientation="vertical"
        android:padding="@dimen/widget_padding" >

        <ImageView
            android:id="@+id/imageView1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:layout_marginLeft="@dimen/widget_padding"
            android:layout_marginRight="@dimen/widget_padding"
            android:src="@drawable/icon64x64" />
    </LinearLayout>

</LinearLayout>

<TextView
    android:id="@+id/txt_workflow_child"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_gravity="center_horizontal"
    android:layout_marginTop="@dimen/widget_padding"
    android:text="TextView"
    android:textColor="@color/text_color"
    android:textSize="@dimen/text_size" />

提到我正在从代码中动态设置Grid View的列宽。有人帮忙吗？

Answer 1

您好请使用此示例：

   <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
   xmlns:tools="http://schemas.android.com/tools"
   android:layout_width="match_parent"
   android:layout_height="match_parent"
   tools:context=".MenuActivity" >

<include
    android:id="@+id/include1"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    layout="@layout/activity_header" />

<View 
    android:id="@+id/view"
    android:layout_below="@+id/include1"
    android:layout_width="fill_parent"
    android:layout_height="20dp"
    android:background="#CCCFD6" />

<GridView 
    android:id="@+id/grid_view"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:layout_below="@+id/view"
    android:gravity="center"
    android:background="@drawable/gray_menu"
    android:verticalSpacing="20dp"
    android:stretchMode="columnWidth" > 

  </GridView>

     </RelativeLayout>

ImageAdapter类：

        public class ImageAdapter extends BaseAdapter 
     {
private Context mContext;

// Keep all Images in array
public Integer[] mThumbIds = {
        R.drawable.a, R.drawable.b, R.drawable.c, 
        R.drawable.d, R.drawable.e, R.drawable.f,
        R.drawable.g, R.drawable.h, R.drawable.i,  
        R.drawable.j, R.drawable.k, R.drawable.l,
        R.drawable.m, R.drawable.n, R.drawable.o
};

String[] titles = {"ddsdxc","xcxc","Allersdfgies",
           "Immsdunidsdzation","sdfdsdc","Faczxmily",
           "Mezdiczccations","Alerzxct","Insuraxcnce",
           "Surgezxries","Teszxct","Hezxclth",
           "Emezxrgzxczency","Medizxccal","Exzxizxczt"};

// Constructor
public ImageAdapter(Context c){
    mContext = c;
}

@Override
public int getCount() {
    return mThumbIds.length;
}

@Override
public Object getItem(int position) {
    return mThumbIds[position];
}

@Override
public long getItemId(int position) {
    return 0;
}

   /* @Override
  public View getView(int position, View convertView, ViewGroup parent) {
    ImageView imageView = new ImageView(mContext);
    imageView.setImageResource(mThumbIds[position]);
    //imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
    //imageView.setLayoutParams(new GridView.LayoutParams(200, 200));
    return imageView;
}*/

public View getView(int position, View convertView, ViewGroup parent) 
{ 
    ImageView icon;
icon = new ImageView(mContext);

LayoutInflater inflater = (LayoutInflater)mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View row=inflater.inflate(R.layout.row, parent, false);
TextView label=(TextView)row.findViewById(R.id.image_name);
label.setText(titles[position]);
icon=(ImageView)row.findViewById(R.id.album_image);

icon.setImageResource(mThumbIds[position]);

return row;
}
}

班级：

  public class MenuActivity extends Activity implements              OnItemClickListener,OnClickListener
 {
  GridView gridView;
    @Override
protected void onCreate(Bundle savedInstanceState) 
{
    super.onCreate(savedInstanceState);
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    setContentView(R.layout.activity_menu);
    initUi();
    }
  private void initUi() 
{
   gridView = (GridView) findViewById(R.id.grid_view);   
    gridView.setNumColumns(3);      
    // Instance of ImageAdapter Class
    gridView.setAdapter(new ImageAdapter(this));
    gridView.setOnItemClickListener(this);
}



   @Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) 
{
    // TODO Auto-generated method stub
    switch (arg2) 
    {
    case 0:
        intent=new Intent(this, Psfssdfs.class);
        startActivity(intent);
        break;
    case 1:
        intent=new Intent(this, CActivity.class);
        startActivity(intent);
        break;
    case 2:
        intent=new Intent(this, AActivity.class);
        startActivity(intent);
        break;  
    case 3:
        intent=new Intent(this, IActivity.class);
        startActivity(intent);
        break;
    case 4:
        //intent=new Intent(MenuActivity.this, .PonActivity.class);
        //intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_CLEAR_TOP);
        //startActivity(intent);
        break;
    case 5:
        intent=new Intent(this, FnagerActivity.class);
        startActivity(intent);
        break;
    case 6:
        intent=new Intent(this, MeomeActivity.class);
        startActivity(intent);
        break;
    case 7:
        //intent=new Intent(MenuActivity.this, PconActivity.class);
        //intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_CLEAR_TOP);
        //startActivity(intent);
        break;
    case 8:
        intent=new Intent(this, Inzivity.class);
        startActivity(intent);
        break;
    case 9:
        intent=new Intent(this, PrzxcsActivity.class);
        startActivity(intent);
        break;
    case 10:
        intent=new Intent(this, TestsActivity.class);
        startActivity(intent);
        break;
    case 11:
        //intent=new Intent(MenuActivity.this, PersonazxvconActivity.class);
        //intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_CLEAR_TOP);
        //startActivity(intent);
        break;
    case 12:
        intent=new Intent(this, Emergzxcctivity.class);
        startActivity(intent);
        break;
    case 13:
        intent=new Intent(this, MedicczxcActivity.class);
        startActivity(intent);
        break;
    case 14:
        showAlert();
        break;
    }   
}

谢谢..我认为这很有用。

如何制作Android网格视图 - 垂直间距动态？

1 个答案: