Go语言视频零基础入门到精通

okwoie

我们今天主要讲的就是一个很简单的实例，这个就是QQ对话框弹出的效果，这个效果是一个非常友好的效果，所以今天拿出来和大家分享一下。也不多说废话了我们现在就来看看主要的代码吧：

       我们先来看看mainactivity： package dev.android;



import java.util.ArrayList;

import android.app.Activity;

import android.os.Bundle;

import android.widget.ListView;



public class MainActivity extends Activity {

private ListView talkView;

private ArrayList<DetailEntity> list = null;

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);



talkView = (ListView)findViewById(R.id.list);



list = new ArrayList<DetailEntity>();

DetailEntity d1 = new DetailEntity("我","2010-04-26","你好!",R.layout.list_say_me_item);

list.add(d1);

DetailEntity d2 = new DetailEntity("金贝贝","2010-04-26","你好!",R.layout.list_say_he_item);

list.add(d2);

DetailEntity d3 = new DetailEntity("金贝贝","2010-04-26","你是哪里人?",R.layout.list_say_he_item);

list.add(d3);

DetailEntity d4 = new DetailEntity("我","2010-04-26","辽宁抚顺!",R.layout.list_say_me_item);

list.add(d4);



talkView.setAdapter(new DetailAdapter(MainActivity.this, list));

}

}
我们在来看看DetailAdapter： package dev.android;



import java.util.ArrayList;



import android.content.Context;

import android.database.DataSetObserver;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import android.widget.LinearLayout;

import android.widget.ListAdapter;

import android.widget.TextView;



public class DetailAdapter implements ListAdapter{

private ArrayList<DetailEntity> coll;

private Context ctx;



public DetailAdapter(Context context ,ArrayList<DetailEntity> coll) {

ctx = context;

this.coll = coll;

}



public boolean areAllItemsEnabled() {

return false;

}

public boolean isEnabled(int arg0) {

return false;

}

public int getCount() {

return coll.size();

}

public Object getItem(int position) {

return coll.get(position);

}

public long getItemId(int position) {

return position;

}

public int getItemViewType(int position) {

return position;

}

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

DetailEntity entity = coll.get(position);

int itemLayout = entity.getLayoutID();



LinearLayout layout = new LinearLayout(ctx);

LayoutInflater vi = (LayoutInflater) ctx.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

vi.inflate(itemLayout, layout,true);



TextView tvName = (TextView) layout.findViewById(R.id.messagedetail_row_name);

tvName.setText(entity.getName());



TextView tvDate = (TextView) layout.findViewById(R.id.messagedetail_row_date);

tvDate.setText(entity.getDate());



TextView tvText = (TextView) layout.findViewById(R.id.messagedetail_row_text);

tvText.setText(entity.getText());

return layout;

}

public int getViewTypeCount() {

return coll.size();

}

public boolean hasStableIds() {

return false;

}

public boolean isEmpty() {

return false;

}

public void registerDataSetObserver(DataSetObserver observer) {

}

public void unregisterDataSetObserver(DataSetObserver observer) {

}



}
我们现在来看看DetailEntity: package dev.android;



public class DetailEntity {

private String name;

private String date;

private String text;

private int layoutID;

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public String getDate() {

return date;

}

public void setDate(String date) {

this.date = date;

}

public String getText() {

return text;

}

public void setText(String text) {

this.text = text;

}

public int getLayoutID() {

return layoutID;

}

public void setLayoutID(int layoutID) {

this.layoutID = layoutID;

}



public DetailEntity() {

}

public DetailEntity(String name, String date, String text, int layoutID) {

super();

this.name = name;

this.date = date;

this.text = text;

this.layoutID = layoutID;

}





}
我们先来看看list_say_me_item.xml <?xml version="1.0" encoding="utf-8"?>

<LinearLayout

xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

androidrientation="horizontal"

>

<ImageView

android:layout_width="42px"

android:layout_height="42px"

android:layout_gravity="bottom"

android:id="@+id/messagegedetail_rov_icon"

android:background="@drawable/retouxiang"

/>

<LinearLayout

android:orientation="vertical"

android:layout_width="249px"

android:layout_height="wrap_content"

android:background="@drawable/incoming"

>

<LinearLayout

android:orientation="horizontal"

android:layout_width="fill_parent"

android:layout_height="22dip"

>

<TextView

android:id="@+id/messagedetail_row_name"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:textColor="#000000"

android:paddingTop="2px"

android:textSize="18dip"

/>

<TextView

android:id="@+id/messagedetail_row_date"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:textColor="#000000"

android:paddingTop="2px"

android:textSize="16dip"

android:layout_marginLeft="60dip"

/>

</LinearLayout>

<TextView

android:id="@+id/messagedetail_row_text"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:paddingLeft="2px"

android:textColor="#0000DD"

android:textSize="24dip"

/>

</LinearLayout>

</LinearLayout>
我们在来看看list_say_he_item.xml代码： <?xml version="1.0" encoding="utf-8"?>

<LinearLayout

xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:orientation="horizontal"

android:layout_marginLeft="10px"

>

<LinearLayout

android:orientation="vertical"

android:layout_width="249px"

android:layout_height="wrap_content"

android:background="@drawable/outgoing"

>

<LinearLayout

android:orientation="horizontal"

android:layout_width="fill_parent"

android:layout_height="22dip"

>

<TextView

android:id="@+id/messagedetail_row_name"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:textColor="#000000"

android:paddingTop="2px"

android:textSize="18dip"

/>

<TextView

android:id="@+id/messagedetail_row_date"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:textColor="#000000"

android:paddingTop="2px"

android:textSize="16dip"

android:layout_marginLeft="60dip"

/>

</LinearLayout>

<TextView

android:id="@+id/messagedetail_row_text"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:paddingLeft="2px"

android:textColor="#0000DD"

android:textSize="24dip"

/>

</LinearLayout>

<ImageView

android:layout_width="42px"

android:layout_height="42px"

android:layout_gravity="bottom"

android:id="@+id/messagegedetail_rov_icon"

android:background="@drawable/retouxiang"

/>

</LinearLayout>
最后我们来看看Androidmanifest.xml代码： <?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

package="dev.android"

android:versionCode="1"

android:versionName="1.0">

<application android:icon="@drawable/icon" android:label="@string/app_name">

<activity android:name=".MainActivity"

android:label="@string/app_name">

<intent-filter>

<action android:name="android.intent.action.MAIN" />

<category android:name="android.intent.category.LAUNCHER" />

</intent-filter>

</activity>



</application>

<uses-sdk android:minSdkVersion="8" />



</manifest>

小飞哥

感谢了，学习了

因爲今生

感谢了，学习中。