Java Android网格视图顺序和对齐在滚动时混乱?
我试图在网格视图上显示图像和文本,但每次滚动时,平铺的顺序和对齐方式都会出错。Java Android网格视图顺序和对齐在滚动时混乱?,java,android,gridview,Java,Android,Gridview,我试图在网格视图上显示图像和文本,但每次滚动时,平铺的顺序和对齐方式都会出错。应用程序如下所示,MainActivity.java package renish.gridview; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.widget.GridView; public class MainActivity extends AppCompatActivit
应用程序如下所示,
MainActivity.java
package renish.gridview;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.GridView;
public class MainActivity extends AppCompatActivity {
GridView gridView;
String[] text = {"One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine", "Ten", "Eleven", "Twelve", "Thirteen", "Fourteen", "Fifteen"};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
CustomGrid adapter = new CustomGrid(MainActivity.this, text, imageId);
gridView = (GridView) findViewById(R.id.gridView);
gridView.setAdapter(adapter);
}
}
活动\u main.xml
<?xml version="1.0" encoding="utf-8"?>
<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"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="renish.gridview.MainActivity">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World!" />
<GridView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/gridView"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:columnWidth="100dp"
android:numColumns="auto_fit"
android:stretchMode="spacingWidthUniform"/>
</RelativeLayout>
grid\u single.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="@+id/imageView"
android:layout_width="100dp"
android:layout_height="100dp"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="103dp" />
<TextView
android:id="@+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:text="Medium Text"
android:textAppearance="?android:attr/textAppearanceMedium" />
</RelativeLayout>
AndroidManifest.xml<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="renish.gridview">
<uses-permission android:name="android.permission.INTERNET" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
当我运行应用程序时,输出是正常的,但是每次我滚动时,文本的顺序和图像的对齐都会弄乱。
请建议解决方案。更改
getView()
类中的CustomGrid
方法如下:
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View grid;
if(convertView == null) {
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
grid = inflater.inflate(R.layout.grid_single, null);
} else {
grid = (View) convertView;
}
TextView textView = (TextView) grid.findViewById(R.id.textView);
ImageView imageView = (ImageView) grid.findViewById(R.id.imageView);
textView.setText(text[position]);
Picasso.with(context)
.load("http://www.funsundivetravel.com/wp-content/uploads/2015/02/200x300.gif")
.into(imageView);
return grid;
}
除此之外,您最好阅读有关视图固定器模式的内容。我在这个问题上停留的时间太长了。这个答案帮助了我。非常感谢@mussa
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View grid;
if(convertView == null) {
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
grid = inflater.inflate(R.layout.grid_single, null);
} else {
grid = (View) convertView;
}
TextView textView = (TextView) grid.findViewById(R.id.textView);
ImageView imageView = (ImageView) grid.findViewById(R.id.imageView);
textView.setText(text[position]);
Picasso.with(context)
.load("http://www.funsundivetravel.com/wp-content/uploads/2015/02/200x300.gif")
.into(imageView);
return grid;
}