Android(安卓)开发第二弹：通讯录
16lz
2021-12-04
MainActivity.java
package myapplication.nomasp.com.addressbook;import android.app.Activity;import android.os.Bundle;import android.view.Menu;import android.view.MenuItem;import android.widget.ListView;public class MainActivity extends Activity { private ListView lvPhoneInfo; private PhoneAdapter adapter; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); GetNumber.getNumber(this); lvPhoneInfo = (ListView)findViewById(R.id.lvPhoneInfo); adapter = new PhoneAdapter(GetNumber.lists,this); lvPhoneInfo.setAdapter(adapter); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.menu_main, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { // Handle action bar item clicks here. The action bar will // automatically handle clicks on the Home/Up button, so long // as you specify a parent activity in AndroidManifest.xml. int id = item.getItemId(); //noinspection SimplifiableIfStatement if (id == R.id.action_settings) { return true; } return super.onOptionsItemSelected(item); }}GetNumber.java
package myapplication.nomasp.com.addressbook;import android.content.ContentResolver;import android.content.ContentUris;import android.content.Context;import android.database.Cursor;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.net.Uri;import android.provider.ContactsContract;import android.provider.ContactsContract.CommonDataKinds.Phone;import java.io.InputStream;import java.util.ArrayList;import java.util.List;/** * Created by nomasp on 2015/09/22. */public class GetNumber { public static List<PhoneInfo> lists = new ArrayList<PhoneInfo>(); public static String getNumber(Context context){ Cursor cursor = context.getContentResolver().query(Phone.CONTENT_URI, null, null, null, null); String phoneNumber; String phoneName; ContentResolver resolver = context.getContentResolver(); while (cursor.moveToNext()) { phoneNumber = cursor.getString(cursor.getColumnIndex(Phone.NUMBER)); phoneName = cursor.getString(cursor.getColumnIndex(Phone.DISPLAY_NAME)); PhoneInfo phoneInfo = new PhoneInfo(phoneNumber,phoneName); lists.add(phoneInfo); } return null; }}PhoneInfo.java
package myapplication.nomasp.com.addressbook;import android.graphics.Bitmap;/** * Created by nomasp on 2015/09/22. */public class PhoneInfo { private String name; private String number; public PhoneInfo(String number, String name) { this.number = number; this.name = name; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getNumber() { return number; } public void setNumber(String number) { this.number = number; }}PhoneAdapter.java
package myapplication.nomasp.com.addressbook;import android.content.Context;import android.media.Image;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.ImageView;import android.widget.LinearLayout;import android.widget.TextView;import java.util.List;import java.util.concurrent.TimeoutException;/** * Created by nomasp on 2015/09/22. */public class PhoneAdapter extends BaseAdapter { private List<PhoneInfo> lists; private Context context; private LinearLayout layout; public PhoneAdapter(List<PhoneInfo> lists, Context context) { this.lists = lists; this.context = context; } @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) { ViewHolder holder; if(convertView==null){ convertView = LayoutInflater.from(context).inflate(R.layout.cell,null); holder = new ViewHolder(); holder.tvName = (TextView)convertView.findViewById(R.id.tvName); holder.tvNumber = (TextView)convertView.findViewById(R.id.tvNumber); holder.ivPicture = (ImageView)convertView.findViewById(R.id.ivPicture); holder.tvName.setText(lists.get(position).getName()); holder.tvNumber.setText(lists.get(position).getNumber()); convertView.setTag(holder); }else{ holder = (ViewHolder)convertView.getTag(); holder.tvName.setText(lists.get(position).getName()); holder.tvNumber.setText(lists.get(position).getNumber()); } return convertView; } private static class ViewHolder{ TextView tvName; TextView tvNumber; ImageView ivPicture; }}activity_main.xml
<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=".MainActivity"> <ListView android:id="@+id/lvPhoneInfo" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentTop="true" android:layout_alignParentStart="true" /></RelativeLayout>cell.xml
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="horizontal" android:layout_width="match_parent" android:layout_height="match_parent"> <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="horizontal"> <ImageView android:id="@+id/ivPicture" android:layout_width="45dp" android:layout_height="45dp"/> <LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" android:gravity="center_vertical" android:orientation="horizontal"> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical"> <TextView android:id="@+id/tvName" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="TextView" android:textSize="15sp"/> <TextView android:id="@+id/tvNumber" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="TextView" android:textSize="11sp"/> </LinearLayout> </LinearLayout> </LinearLayout></LinearLayout>AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android" package="myapplication.nomasp.com.addressbook" android:versionCode="1" android:versionName="1.0" > <application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > <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="14" android:maxSdkVersion="22" android:targetSdkVersion="21"/> <uses-permission android:name="android.permission.READ_CONTACTS"/> <uses-permission android:name="android.permission.WRITE_CONTACTS"/></manifest>更多相关文章
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