我想在Android中使用多种布局制作Screen。 Fox示例在屏幕的顶部有一个带有图像滑块的标题(这部分已经完成),下面会有一个列表视图,下面会有网格视图。
Activitymain.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"
tools:context="com.example.root.multipleview.MainActivity">
<!--Header image-->
<android.support.v4.view.ViewPager
android:id="@+id/viewPager"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:autoStart="true"></android.support.v4.view.ViewPager>
<!--ListView Below header -->
<ListView
android:id="@+id/listView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:height="10dp" />
</RelativeLayout>
CustomLayout.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentTop="true"
android:background="#f1f3f7"
android:orientation="vertical">
<!--Header image with slider-->
<ImageView
android:id="@+id/headerimg"
android:layout_width="fill_parent"
android:layout_height="180dp"
android:scaleType="centerCrop"
android:layout_marginTop="4dp"
android:layout_marginLeft="4dp"
android:layout_marginRight="4dp"
android:layout_marginBottom="4dp"
android:src="@mipmap/ic_launcher" />
<!--ListView Below Header-->
<RelativeLayout
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:weightSum="1"
android:layout_marginTop="20dp"
android:paddingLeft="2dp">
<ImageView
android:id="@+id/imageView"
android:layout_width="100dp"
android:layout_height="90dp"
android:layout_weight="0.05"
app:srcCompat="@mipmap/ic_launcher"
android:paddingTop="10dp"
android:paddingBottom="10dp"
android:gravity="center"/>
<TextView
android:id="@+id/textName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_marginLeft="40dp"
android:layout_marginStart="40dp"
android:layout_marginTop="11dp"
android:layout_toEndOf="@+id/imageView"
android:layout_toRightOf="@+id/imageView"
android:text="TextView" />
<TextView
android:id="@+id/textdesc"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView"
android:layout_marginBottom="20dp"
android:layout_alignBottom="@+id/imageView"
android:layout_alignLeft="@+id/textName"
android:layout_alignStart="@+id/textName"/>
</RelativeLayout>
</LinearLayout>
ListView.java
package com.example.root.multipleview;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
/**
* Created by root on 11/18/2017.
*/
public class ListView extends AppCompatActivity {
int[] Images = {R.drawable.salad,R.drawable.salami,R.drawable.flour,R.drawable.salt,
R.drawable.sandwich,R.drawable.sausage,R.drawable.seeds,R.drawable.cheese,R.drawable.shrimp,R.drawable.cupcake,R.drawable.cup,R.drawable.spices,R.drawable.cabbage
,R.drawable.spoon,R.drawable.apple,R.drawable.asparagus,R.drawable.cupcake,R.drawable.fish,R.drawable.corn,R.drawable.cupcake,R.drawable.spatula,R.drawable.olives
,R.drawable.garlic,R.drawable.taco,R.drawable.broccoli,R.drawable.cabbage};
String[] Names = {"a","B","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"};
String[] Description = {"VVV","DDD","ddd","dddsa","ddsdsds","zsxx","wwwwq","ddwqK","EQWK","FgggFFF","FFFkklF","FghhFFF","FFhhFF","FFhhFF",
"FFmmmFF","FgggFFF","FFFFbbb","FFFFfeee","gfffFFFF","FFFFfff","FFFgffF","FFFFfgffg","FFFfgfgfF","FFFgffF","FFFgfggdF","FFFFdssa"};
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
android.widget.ListView listView= (android.widget.ListView) findViewById(R.id.listView);
CustomAdapter customAdapter = new CustomAdapter();
listView.setAdapter(customAdapter);
}
public class CustomAdapter extends BaseAdapter {
@Override
public int getCount() {
return Images.length;
}
@Override
public Object getItem(int i) {
return null;
}
@Override
public long getItemId(int i) {
return 0;
}
@Override
public View getView(int i, View view, ViewGroup viewGroup) {
view = getLayoutInflater().inflate(R.layout.custom_layout,null);
ImageView imageView = (ImageView)view.findViewById(R.id.imageView);
TextView textView_N = (TextView)view.findViewById(R.id.textName);
TextView textView_D = (TextView)view.findViewById(R.id.textdesc);
imageView.setImageResource(Images[i]);
textView_N.setText(Names[i]);
textView_D.setText(Description[i]);
return view;
}
}
}
MainActivity.java
package com.example.root.multipleview;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
public class MainActivity extends AppCompatActivity {
ViewPager viewPager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
viewPager = (ViewPager)findViewById(R.id.viewPager);
ViewPageAdapter viewPageAdapter = new ViewPageAdapter( this);
viewPager.setAdapter(viewPageAdapter);
}
}
ViewPageAdapter
package com.example.root.multipleview;
import android.content.Context;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
/**
* Created by root on 11/18/2017.
*/
public class ViewPageAdapter extends PagerAdapter{
private Context context;
private LayoutInflater layoutInflater;
private Integer[] images = {R.drawable.b,R.drawable.c,R.drawable.e,R.drawable.j,R.drawable.r,R.drawable.x,R.drawable.y};
public ViewPageAdapter(Context context){this.context = context;}
@Override
public int getCount() {
return images.length;
}
@Override
public boolean isViewFromObject(View view, Object object) {
return view == object;
}
@Override
public Object instantiateItem(ViewGroup container, int position) {
layoutInflater =(LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View view = layoutInflater.inflate((R.layout.custom_layout), null);
ImageView imageView = (ImageView) view.findViewById(R.id.headerimg);
imageView.setImageResource((images[position]));
ViewPager vp = (ViewPager) container;
vp.addView(view, 0);
return view;
}
@Override
public void destroyItem(ViewGroup container, int position, Object object) {
ViewPager vp = (ViewPager) container;
View view = (View) object;
vp.removeView(view);
}
}
当我单独检查所有布局时,它可以工作,但在添加一个布局后,它无法正常工作。输出截图已添加
答案 0 :(得分:1)
如何为一个屏幕制作多个布局?
我实现此目标的方法是使用片段
如何?
我确实制作了一个main_layout并设置了一个 FrameLayout ,以便放置具有不同布局的片段。所以我有一个不同布局的屏幕。
这是我对你问题的最佳答案。