安卓中ListView中嵌套ListView的例子
平常我们使用ListView已是司空见惯，但是当ListView的item也是一个ListView的时候就显得有些棘手了，或是遇到数据加载显示不出来，或是遇到只加载一个item，或是遇到滑动混乱数据混乱等等问题，我想说的是ListView的item要使用自定义的ListView就可以解决这一系列问题。
MainActivity：
package zm.listviewnesting;
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ListView;
import android.widget.TextView;
import java.util.ArrayList;
import java.util.List;
public class MainActivity extends Activity {
private ListView list_one;
private AreaAdapter areaAdapter;
private List<AreaEntity> areaEneities = new ArrayList<AreaEntity>();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
list_one = (ListView) findViewById(R.id.list_one);
for (int i = 0; i < 10; i++) {
AreaEntity areaEntity = new AreaEntity(i + "", "大众");
areaEneities.add(areaEntity);
}
getdata();
}
private void getdata() {
areaAdapter = new AreaAdapter(areaEneities, this);
list_one.setAdapter(areaAdapter);
}
class AreaAdapter extends BaseAdapter {
private List<AreaEntity> areaEneity;
private LayoutInflater mInflater;
private Context mContext;
public AreaAdapter(List<AreaEntity> areaEneities, Context context) {
super();
this.areaEneity = areaEneities;
this.mInflater = LayoutInflater.from(context);
this.mContext = context;
}
@Override
public int getCount() {
return areaEneity.size();
}
@Override
public Object getItem(int position) {
return areaEneity.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
convertView = mInflater.inflate(R.layout.item_list_one, null);
holder = new ViewHolder();
holder.tv_car = (TextView) convertView.findViewById(R.id.tv_car);
holder.list_two = (MyListView) convertView.findViewById(R.id.list_two);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.tv_car.setText(areaEneity.get(position).getArea());
List<AreaEntity> areaEneities = new ArrayList<AreaEntity>();
AreaAdapterTwo areaAdapter = new AreaAdapterTwo(areaEneities, mContext);
holder.list_two.setAdapter(areaAdapter);
for (int i = 0; i < 3; i++) {
AreaEntity areaEntity = new AreaEntity(i + "", "L15");
areaEneities.add(areaEntity);
}
return convertView;
}
class ViewHolder {
private TextView tv_car;
private MyListView list_two;
}
}
class AreaAdapterTwo extends BaseAdapter {
private List<AreaEntity> areaEneity;
private LayoutInflater mInflater;
private Context mContext;
public AreaAdapterTwo(List<AreaEntity> areaEneities, Context context) {
super();
this.areaEneity = areaEneities;
this.mInflater = LayoutInflater.from(context);
this.mContext = context;
}
@Override
public int getCount() {
return areaEneity.size();
}
@Override
public Object getItem(int position) {
return areaEneity.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
convertView = mInflater.inflate(R.layout.item_list_two, null);
holder = new ViewHolder();
holder.tv_count = (TextView) convertView.findViewById(R.id.tv_count);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.tv_count.setText(areaEneity.get(position).getArea());
return convertView;
}
class ViewHolder {
private TextView tv_count;
}
}
}
自定义ListView：=====MyListView：
package zm.listviewnesting;
import android.content.Context;
import android.util.AttributeSet;
import android.widget.ListView;
/**
* 作者：joy on 2015/11/27 10:23
*/
public class MyListView extends ListView {
public MyListView(Context context) {
super(context);
}
public MyListView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public MyListView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2,
MeasureSpec.AT_MOST);
super.onMeasure(widthMeasureSpec, expandSpec);
}
}
直接在布局文件中引用就可以了，注意包名：
<zm.listviewnesting.MyListView
android:id="@+id/list_two"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
Activity进行切换的时候可以加入一些炫酷的动画，
实现代码如下:
MainActivity:
package com.example.administrator.swichlayoutdemo;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.widget.Button;
import com.tandong.swichlayout.BaseEffects;
import com.tandong.swichlayout.SwitchLayout;
public class MainActivity extends Activity {
private Button btn_ok, btn_1, btn_2, btn_3, btn_4, btn_5, btn_6, btn_7,
btn_8, btn_9, btn_10, btn_11, btn_12, btn_13, btn_14;
@Override
protected void onCreate(Bundle savedInstanceState) {
requestWindowFeature(Window.FEATURE_NO_TITLE);
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initView();
// 设置进入Activity的Activity特效动画，同理可拓展为布局动画
SwitchLayout.getSlideFromBottom(this, false,
BaseEffects.getQuickToSlowEffect());
// 三个参数分别为（Activity/View，是否关闭Activity，特效（可为空））
initListener();
}
private void initListener() {
btn_ok.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Intent in = new Intent(MainActivity.this, SecondActivity.class);
in.putExtra("key", 0);
MainActivity.this.startActivity(in);
}
});
btn_1.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Intent in = new Intent(MainActivity.this, SecondActivity.class);
in.putExtra("key", 1);
MainActivity.this.startActivity(in);
}
});
btn_2.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Intent in = new Intent(MainActivity.this, SecondActivity.class);
in.putExtra("key", 2);
MainActivity.this.startActivity(in);
}
});
btn_3.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Intent in = new Intent(MainActivity.this, SecondActivity.class);
in.putExtra("key", 3);
MainActivity.this.startActivity(in);
}
});
btn_4.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Intent in = new Intent(MainActivity.this, SecondActivity.class);
in.putExtra("key", 4);
MainActivity.this.startActivity(in);
}
});
btn_5.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Intent in = new Intent(MainActivity.this, SecondActivity.class);
in.putExtra("key", 5);
MainActivity.this.startActivity(in);
}
});
btn_6.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Intent in = new Intent(MainActivity.this, SecondActivity.class);
in.putExtra("key", 6);
MainActivity.this.startActivity(in);
}
});
btn_7.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Intent in = new Intent(MainActivity.this, SecondActivity.class);
in.putExtra("key", 7);
MainActivity.this.startActivity(in);
}
});
btn_8.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Intent in = new Intent(MainActivity.this, SecondActivity.class);
in.putExtra("key", 8);
MainActivity.this.startActivity(in);
}
});
btn_9.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Intent in = new Intent(MainActivity.this, SecondActivity.class);
in.putExtra("key", 9);
MainActivity.this.startActivity(in);
}
});
btn_10.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Intent in = new Intent(MainActivity.this, SecondActivity.class);
in.putExtra("key", 10);
MainActivity.this.startActivity(in);
}
});
btn_11.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Intent in = new Intent(MainActivity.this, SecondActivity.class);
in.putExtra("key", 11);
MainActivity.this.startActivity(in);
}
});
btn_12.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Intent in = new Intent(MainActivity.this, SecondActivity.class);
in.putExtra("key", 12);
MainActivity.this.startActivity(in);
}
});
btn_13.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Intent in = new Intent(MainActivity.this, SecondActivity.class);
in.putExtra("key", 13);
MainActivity.this.startActivity(in);
}
});
btn_14.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Intent in = new Intent(MainActivity.this, SecondActivity.class);
in.putExtra("key", 14);
MainActivity.this.startActivity(in);
}
});
}
private void initView() {
btn_ok = (Button) this.findViewById(R.id.btn_ok);
btn_1 = (Button) this.findViewById(R.id.btn_1);
btn_2 = (Button) this.findViewById(R.id.btn_2);
btn_3 = (Button) this.findViewById(R.id.btn_3);
btn_4 = (Button) this.findViewById(R.id.btn_4);
btn_5 = (Button) this.findViewById(R.id.btn_5);
btn_6 = (Button) this.findViewById(R.id.btn_6);
btn_7 = (Button) this.findViewById(R.id.btn_7);
btn_8 = (Button) this.findViewById(R.id.btn_8);
btn_9 = (Button) this.findViewById(R.id.btn_9);
btn_10 = (Button) this.findViewById(R.id.btn_10);
btn_11 = (Button) this.findViewById(R.id.btn_11);
btn_12 = (Button) this.findViewById(R.id.btn_12);
btn_13 = (Button) this.findViewById(R.id.btn_13);
btn_14 = (Button) this.findViewById(R.id.btn_14);
}
}
SecondActivity:
package com.example.administrator.swichlayoutdemo;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.widget.ImageView;
import com.tandong.swichlayout.BaseEffects;
import com.tandong.swichlayout.SwichLayoutInterFace;
import com.tandong.swichlayout.SwitchLayout;
public class SecondActivity extends Activity implements SwichLayoutInterFace {
private Intent intent;
private ImageView iv_back;
private int key = 0;
@Override
protected void onCreate(Bundle savedInstanceState) {
requestWindowFeature(Window.FEATURE_NO_TITLE);
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_second);
initIntent();
// 设置进入Activity的Activity特效动画，同理可拓展为布局动画
setEnterSwichLayout();
}
private void initIntent() {
intent = getIntent();
key = intent.getExtras().getInt("key");
iv_back = (ImageView) this.findViewById(R.id.iv_back);
iv_back.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
setExitSwichLayout();
}
});
}
public boolean onKeyDown(int keyCode, KeyEvent event) {// 按返回键时退出Activity的Activity特效动画
if (keyCode == KeyEvent.KEYCODE_BACK && event.getRepeatCount() == 0) {
setExitSwichLayout();
return true;
}
return super.onKeyDown(keyCode, event);
}
@Override
public void setEnterSwichLayout() {
switch (key) {
case 0:
SwitchLayout.get3DRotateFromLeft(this, false, null);
// 三个参数分别为（Activity/View，是否关闭Activity，特效（可为空））
break;
case 1:
SwitchLayout.getSlideFromBottom(this, false,
BaseEffects.getMoreSlowEffect());
break;
case 2:
SwitchLayout.getSlideFromTop(this, false,
BaseEffects.getReScrollEffect());
break;
case 3:
SwitchLayout.getSlideFromLeft(this, false,
BaseEffects.getLinearInterEffect());
break;
case 4:
SwitchLayout.getSlideFromRight(this, false, null);
break;
case 5:
SwitchLayout.getFadingIn(this);
break;
case 6:
SwitchLayout.ScaleBig(this, false, null);
break;
case 7:
SwitchLayout.FlipUpDown(this, false,
BaseEffects.getQuickToSlowEffect());
break;
case 8:
SwitchLayout.ScaleBigLeftTop(this, false, null);
break;
case 9:
SwitchLayout.getShakeMode(this, false, null);
break;
case 10:
SwitchLayout.RotateLeftCenterIn(this, false, null);
break;
case 11:
SwitchLayout.RotateLeftTopIn(this, false, null);
break;
case 12:
SwitchLayout.RotateCenterIn(this, false, null);
break;
case 13:
SwitchLayout.ScaleToBigHorizontalIn(this, false, null);
break;
case 14:
SwitchLayout.ScaleToBigVerticalIn(this, false, null);
break;
default:
break;
}
}
@Override
public void setExitSwichLayout() {
switch (key) {
case 0:
SwitchLayout.get3DRotateFromRight(this, true, null);
break;
case 1:
SwitchLayout.getSlideToBottom(this, true,
BaseEffects.getMoreSlowEffect());
break;
case 2:
SwitchLayout.getSlideToTop(this, true,
BaseEffects.getReScrollEffect());
break;
case 3:
SwitchLayout.getSlideToLeft(this, true,
BaseEffects.getLinearInterEffect());
break;
case 4:
SwitchLayout.getSlideToRight(this, true, null);
break;
case 5:
SwitchLayout.getFadingOut(this, true);
break;
case 6:
SwitchLayout.ScaleSmall(this, true, null);
break;
case 7:
SwitchLayout.FlipUpDown(this, true,
BaseEffects.getQuickToSlowEffect());
break;
case 8:
SwitchLayout.ScaleSmallLeftTop(this, true, null);
break;
case 9:
SwitchLayout.getShakeMode(this, true, null);
break;
case 10:
SwitchLayout.RotateLeftCenterOut(this, true, null);
break;
case 11:
SwitchLayout.RotateLeftTopOut(this, true, null);
break;
case 12:
SwitchLayout.RotateCenterOut(this, true, null);
break;
case 13:
SwitchLayout.ScaleToBigHorizontalOut(this, true, null);
break;
case 14:
SwitchLayout.ScaleToBigVerticalOut(this, true, null);
break;
default:
break;
}
}
}
其中强大的动画效果依赖于动画库SwitchLayout1.0.jar包
webview非常的强大可以直接加载网页文件到安卓app中直接显示了我们下面来看一篇关于webview加载flash视频黑屏的方法细节了，具体的操作如下所示。
今天，项目需求修改，需要加载flash视频，本以为很简单，写好代码:
webView = (WebView) view.findViewById(R.id.web);
WebSettings settings = webView.getSettings();
settings.setPluginState(WebSettings.PluginState.ON);
然后
webView.loadUrl(“你的URL”);
然后满心欢喜的去看效果,结果，如果闭着眼睛，是很完美的，因为音乐很优美，但是睁眼一看！我去 黑屏！，然后找原因吧，百度各种方法，让我真正的感受了百度的坑，和百度的神，坑在于许多百度的内容，都是重复的，更有甚者，直接复制的。
神，在于我终于再一次的找到了问题的原因！！
现在说一下，我，webview加载flash黑屏的原因！不是因为没启动插件，不是因为没在application节点开启硬件加速!
而是！在webview布局处，写错了一行代码:
android:layerType="software"
把这个属性，改成：
android:layerType="hardware"
解决了问题，希望各位看官能解决自己的问题
Android与JS数据交互在用户点击时由js反馈数据给安卓然后进行显示了，下面我们来看一个点击webview里的图片放大的例子，具体的细节操作如下所示。废话不多说，直接上代码：
private WebView mWebView;
mWebView.getSettings().setJavaScriptEnabled(true);//这个没的说，首先得支持js
mWebView.loadUrl("www.111cn.net");
mWebView.addJavascriptInterface(new MyJavascriptInterface(this), "imagelistner");//自定义一个MyJavascript接口
mWebView.setWebViewClient(new MyWebViewClient());//MyWebViewClient继承于WebViewClient
MyJavascriptInterface:
// js通信接口
public class MyJavascriptInterface {
private Context context;
public MyJavascriptInterface(Context context) {
this.context = context;
}
@JavascriptInterface //值得注意的是，当你的openImage方法没有被执行，也就是说mWebView.addJavascriptInterface没有作用
那么就请在这里加上@JavascriptInterface,加之前记得先导入
public void openImage(String img) {
System.out.println(img);
Intent intent = new Intent();
intent.putExtra("image", img);
intent.setClass(context, ShowWebImageActivity.class);
context.startActivity(intent);
System.out.println(img);
}
}
private class MyWebViewClient extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
return super.shouldOverrideUrlLoading(view, url);
}
@Override
public void onPageFinished(WebView view, String url) {
view.getSettings().setJavaScriptEnabled(true);
super.onPageFinished(view, url);
// html加载完成之后，添加监听图片的点击js函数
addImageClickListner();//这个方法在下面
}
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
view.getSettings().setJavaScriptEnabled(true);
super.onPageStarted(view, url, favicon);
}
@Override
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
super.onReceivedError(view, errorCode, description, failingUrl);
}
}
// 注入js函数监听
private void addImageClickListner() {
// 这段js函数的功能就是，遍历所有的img几点，并添加onclick函数，在还是执行的时候调用本地接口传递url过去
mWebView.loadUrl("javascript:(function(){" +
"var objs = document.getElementsByTagName(\"img\"); " +
"for(var i=0;i<objs.length;i++) " +
"{"
+ " objs[i].onclick=function() " +
" { "
+ " window.imagelistner.openImage(this.src); " +
" } " +
"}" +
"})()");
}
显示图片的类
package cn.zmit.xiangrikui.test;
import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.Matrix;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.view.Display;
import android.view.View;
import android.widget.ImageView;
import com.squareup.picasso.Picasso;
import cn.zmit.xiangrikui.R;
public class ShowWebImageActivity extends Activity {
private String imagePath = null;
private ImageView imageView = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.show_webimage);
imagePath = getIntent().getStringExtra("image");
imageView = (ImageView) findViewById(R.id.show_webimage_imageview);
imageView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
finish();
}
});
com.squareup.picasso.Target target = new com.squareup.picasso.Target() {
@Override
public void onBitmapLoaded(Bitmap bitmap, Picasso.LoadedFrom from) {
imageView.setImageBitmap(big(bitmap));
}
@Override
public void onBitmapFailed(Drawable errorDrawable) {
}
@Override
public void onPrepareLoad(Drawable placeHolderDrawable) {
}
};
Picasso.with(this).load(imagePath).into(target);
}
public Bitmap big(Bitmap b) {
Display d = (ShowWebImageActivity.this).getWindowManager().getDefaultDisplay();
int x = d.getWidth();//当前屏幕宽度 px
int y = d.getHeight();//当前屏幕高度 px
int w = b.getWidth();
int h = b.getHeight();
float sx = (float) x / w;//要强制转换，不转换我的在这总是死掉。
float sy = (float) y / h;
float total=Math.min(sx,sy);
Matrix matrix = new Matrix();
matrix.postScale(total, total); // 长和宽放大缩小的比例
Bitmap resizeBmp = Bitmap.createBitmap(b, 0, 0, w,
h, matrix, true);
return resizeBmp;
}
}
之前没有用到过这样需求的listview，最近项目需求，所以写了一下，很顺利，下面上代码
1、activity_test
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<HorizontalScrollView
android:layout_width="wrap_content"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/white"
android:orientation="horizontal">
<TextView
android:id="@+id/tv_one"
android:layout_width="100dp"
android:layout_height="50dp"
android:gravity="center"
android:text="一年级"
android:textColor="@color/black"
android:textSize="@dimen/medium_text_size" />
<TextView
android:id="@+id/tv_two"
android:layout_width="100dp"
android:layout_height="50dp"
android:gravity="center"
android:text="二年级"
android:textColor="@color/black"
android:textSize="@dimen/medium_text_size" />
<TextView
android:id="@+id/tv_three"
android:layout_width="100dp"
android:layout_height="50dp"
android:gravity="center"
android:text="三年级"
android:textColor="@color/black"
android:textSize="@dimen/medium_text_size" />
<TextView
android:id="@+id/tv_four"
android:layout_width="100dp"
android:layout_height="50dp"
android:gravity="center"
android:text="四年级"
android:textColor="@color/black"
android:textSize="@dimen/medium_text_size" />
<TextView
android:id="@+id/tv_five"
android:layout_width="100dp"
android:layout_height="50dp"
android:gravity="center"
android:text="五年级"
android:textColor="@color/black"
android:textSize="@dimen/medium_text_size" />
</LinearLayout>
<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="@color/view"></View>
<ListView
android:id="@+id/lv_test"
android:layout_width="match_parent"
android:layout_height="match_parent"></ListView>
</LinearLayout>
</HorizontalScrollView>
</LinearLayout>
2、item_test
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/white"
android:orientation="horizontal">
<TextView
android:id="@+id/tv_one"
android:layout_width="100dp"
android:layout_height="50dp"
android:gravity="center"
android:text="一年级"
android:textColor="@color/black"
android:textSize="@dimen/medium_text_size" />
<TextView
android:id="@+id/tv_two"
android:layout_width="100dp"
android:layout_height="50dp"
android:gravity="center"
android:text="二年级"
android:textColor="@color/black"
android:textSize="@dimen/medium_text_size" />
<TextView
android:id="@+id/tv_three"
android:layout_width="100dp"
android:layout_height="50dp"
android:gravity="center"
android:text="三年级"
android:textColor="@color/black"
android:textSize="@dimen/medium_text_size" />
<TextView
android:id="@+id/tv_four"
android:layout_width="100dp"
android:layout_height="50dp"
android:gravity="center"
android:text="四年级"
android:textColor="@color/black"
android:textSize="@dimen/medium_text_size" />
<TextView
android:id="@+id/tv_five"
android:layout_width="100dp"
android:layout_height="50dp"
android:gravity="center"
android:text="五年级"
android:textColor="@color/black"
android:textSize="@dimen/medium_text_size" />
</LinearLayout>
<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="@color/view"></View>
</LinearLayout>
</LinearLayout>
3、TestActivity(包括了Adapter)
package cn.zmit.frame.activity;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ListView;
import android.widget.TextView;
import java.util.ArrayList;
import java.util.List;
import cn.zmit.frame.R;
/**
* Created by kyle on 2016/5/13 0013.
*/
public class TestActivity extends Activity {
private List<String[]> lists = new ArrayList<>();
ListView mLvTest;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_tests);
mLvTest= (ListView) findViewById(R.id.lv_test);
for(int i=0;i<15;i++){
String[]strings={“蛮王”+i,”剑圣”+i,”赵信”+i,”小龙”+i,”大龙”+i};
lists.add(strings);
}
mLvTest.setAdapter(new MyAdapter());
}
private class MyAdapter extends BaseAdapter {
@Override
public int getCount() {
return lists.size();
}
@Override
public Object getItem(int position) {
return lists.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
MyHolder holder;
if (convertView == null) {
convertView = View.inflate(TestActivity.this, R.layout.item_test, null);
holder = new MyHolder();
holder.mTvOne = (TextView) convertView.findViewById(R.id.tv_one);
holder.mTvTwo = (TextView) convertView.findViewById(R.id.tv_two);
holder.mTvThree = (TextView) convertView.findViewById(R.id.tv_three);
holder.mTvFour = (TextView) convertView.findViewById(R.id.tv_four);
holder.mTvFive = (TextView) convertView.findViewById(R.id.tv_five);
convertView.setTag(holder);
}else {
holder= (MyHolder) convertView.getTag();
}
holder.mTvOne.setText(lists.get(position)[0]);
holder.mTvTwo.setText(lists.get(position)[1]);
holder.mTvThree.setText(lists.get(position)[2]);
holder.mTvFour.setText(lists.get(position)[3]);
holder.mTvFive.setText(lists.get(position)[4]);
return convertView;
}
}
private class MyHolder {
private TextView mTvOne;
private TextView mTvTwo;
private TextView mTvThree;
private TextView mTvFour;
private TextView mTvFive;
}
}
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