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这篇文章主要介绍“Android ListView怎么实现微信聊天界面”,在日常操作中,相信很多人在Android ListView怎么实现微信聊天界面问题上存在疑惑,小编查阅了各式资料,整理出简单好用的操作方法,希望对大家解答”Android ListView怎么实现微信聊天界面”的疑惑有所帮助!接下来,请跟着小编一起来学习吧!
效果图如下

1.首先页面总布局(ListView + LinearLayout(TextView+Button))
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <ListView android:id="@+id/msg_list_view" android:layout_width="match_parent" android:layout_height="0dp" android:layout_weight="1" android:divider="#000000" /> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal"> <EditText android:id="@+id/input_text" android:layout_height="wrap_content" android:layout_width="0dp" android:layout_weight="1" android:gravity="center_vertical" android:maxLines="2"/> <Button android:id="@+id/send" android:text="发送" android:layout_height="wrap_content" android:layout_width="wrap_content" android:gravity="center"/> </LinearLayout> </LinearLayout>
2.为ListView定制Adapter
public class MsgAdapter extends ArrayAdapter<Msg>{
private int resourceID;
public MsgAdapter(Context context, int resource, List<Msg> objects) {
super(context, resource, objects);
resourceID = resource;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
Msg msg = getItem(position);
View view;
ViewHolder viewHolder;
if(convertView == null) {
view = LayoutInflater.from(getContext()).inflate(resourceID, null);
viewHolder = new ViewHolder();
viewHolder.leftLayout = (LinearLayout)view.findViewById(R.id.left_layout);
viewHolder.rightLayout = (LinearLayout) view.findViewById(R.id.right_layout);
viewHolder.leftMsg = (TextView) view.findViewById(R.id.left_msg);
viewHolder.rightMsg = (TextView) view.findViewById(R.id.right_msg);
view.setTag(viewHolder);
}else {
view = convertView;
viewHolder = (ViewHolder) view.getTag();
}
if(msg.getType() == Msg.MSG_RECEIVE) {
viewHolder.leftLayout.setVisibility(View.VISIBLE);
viewHolder.rightLayout.setVisibility(View.GONE);
viewHolder.leftMsg.setText(msg.getMessage());
}else {
viewHolder.rightLayout.setVisibility(View.VISIBLE);
viewHolder.leftLayout.setVisibility(View.GONE);
viewHolder.rightMsg.setText(msg.getMessage());
}
return view;
}
class ViewHolder {
LinearLayout leftLayout;
LinearLayout rightLayout;
TextView leftMsg;
TextView rightMsg;
}
}public class Msg {
public static final int MSG_RECEIVE = 0;
public static final int MSG_SEND = 1;
private int type;
private String content;
public Msg(String content, int type) {
this.content = content;
this.type = type;
}
public String getMessage() {
return content;
}
public int getType() {
return type;
}
}3.ListView单个view布局
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical" > <LinearLayout android:id="@+id/left_layout" android:layout_height="wrap_content" android:layout_width="wrap_content" android:layout_gravity="start" android:gravity="center" > <ImageView android:id="@+id/left_image" android:src="@drawable/yan" android:layout_height="wrap_content" android:layout_width="wrap_content" /> <LinearLayout android:layout_height="wrap_content" android:layout_width="wrap_content" android:background="@drawable/msg"> <TextView android:id="@+id/left_msg" android:layout_height="wrap_content" android:layout_width="wrap_content" /> </LinearLayout> </LinearLayout> <LinearLayout android:id="@+id/right_layout" android:layout_height="wrap_content" android:layout_width="wrap_content" android:layout_gravity="end" android:gravity="center" > <LinearLayout android:layout_height="wrap_content" android:layout_width="wrap_content" android:background="@drawable/msg"> <TextView android:id="@+id/right_msg" android:layout_height="wrap_content" android:layout_width="wrap_content" /> </LinearLayout> <ImageView android:id="@+id/right_image" android:src="@drawable/meng" android:layout_height="wrap_content" android:layout_width="wrap_content" /> </LinearLayout> </LinearLayout>
4.ListView加载Adapter
public class MainActivity extends Activity {
private ListView listView;
private MsgAdapter msgAdapter;
private List<Msg> msgList = new ArrayList<Msg>();
private EditText input;
private Button send;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
listView = (ListView) findViewById(R.id.msg_list_view);
initMsg();
msgAdapter = new MsgAdapter(this, R.layout.msg_item, msgList);
listView.setAdapter(msgAdapter);
input = (EditText) findViewById(R.id.input_text);
send = (Button) findViewById(R.id.send);
send.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
String message = input.getText().toString();
if(!"".equals(message)) {
Msg msg = new Msg(message, Msg.MSG_SEND);
msgList.add(msg);
msgAdapter.notifyDataSetChanged();//当有新消息时刷新
listView.setSelection(msgList.size());
}else {
Toast.makeText(MainActivity.this, "input can"t be empty", Toast.LENGTH_SHORT).show();
}
input.setText("");
}
});
}
private void initMsg() {
Msg msg;
msg = new Msg("Hi, boy", Msg.MSG_RECEIVE);
msgList.add(msg);
msg = new Msg("Hi, girl", Msg.MSG_SEND);
msgList.add(msg);
msg = new Msg("what"s up", Msg.MSG_RECEIVE);
msgList.add(msg);
}
}到此,关于“Android ListView怎么实现微信聊天界面”的学习就结束了,希望能够解决大家的疑惑。理论与实践的搭配能更好的帮助大家学习,快去试试吧!若想继续学习更多相关知识,请继续关注亿速云网站,小编会继续努力为大家带来更多实用的文章!
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