
Main
private ListView lv;
private List<Contact> datas = new ArrayList<Contact>();
private int[] headIds = {R.drawable.img01, R.drawable.img02, R.drawable.img03,
R.drawable.img04, R.drawable.img05, R.drawable.img06,
R.drawable.img07, R.drawable.img08, R.drawable.img09};
private MyAdapter adapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
lv = (ListView) findViewById(R.id.lv);
lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Toast.makeText(MainActivity.this, "选择联系人:" +
datas.get(position).getName(), Toast.LENGTH_SHORT).show();
}
});
if (ContextCompat.checkSelfPermission(this, Manifest.permission.READ_CONTACTS)
!= PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(this, new String[]{Manifest.
permission.READ_CONTACTS}, 1);
} else {
readContacts();
}
}
private void readContacts() {
Cursor cursor = null;
ContentResolver resolver = getContentResolver();
try {
cursor = resolver.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, new String[]{"display_name", ContactsContract.
CommonDataKinds.Phone.NUMBER}, null, null, null);
if (cursor != null && cursor.getCount() > 0) {
Contact contact = null;
int i = 0;
while (cursor.moveToNext()) {
contact = new Contact();
String displayName = cursor.getString(0);
String number = cursor.getString(1);
contact.setHeadImaId(headIds[i++]);
contact.setName(displayName);
contact.setNumber(number);
datas.add(contact);
}
adapter = new MyAdapter();
lv.setAdapter(adapter);
}
} catch (Exception e) {
e.printStackTrace();
} finally {
if (cursor != null) {
cursor.close();
}
}
}
public void onRequestPermissionsResult(int requestCode,@NonNull String[] permissions,
@NonNull int[] grantResults){
switch(requestCode){
case 1:
if(grantResults.length>0&& grantResults[0]==PackageManager.PERMISSION_GRANTED){
readContacts();
}else{
Toast.makeText(this,"你拒绝了权限",Toast.LENGTH_SHORT).show();
}
break;
}
}
class MyAdapter extends BaseAdapter {
@Override
public int getCount() {
return datas.size();
}
@Override
public Object getItem(int position) {
return datas.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(MainActivity.this).inflate(R.layout.list_layout, null);
holder = new ViewHolder();
holder.ivHead = (ImageView) convertView.findViewById(R.id.iv_head);
holder.tvName = (TextView) convertView.findViewById(R.id.tv_name);
holder.tvNumber = (TextView) convertView.findViewById(R.id.tv_number);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.ivHead.setImageResource(datas.get(position).getHeadImaId());
holder.tvName.setText(datas.get(position).getName());
holder.tvNumber.setText(datas.get(position).getNumber());
return convertView;
}
class ViewHolder {
ImageView ivHead;
TextView tvName;
TextView tvNumber;
}
}
}
Contact
public class Contact {
private int headImaId;
private String name;
private String number;
public int getHeadImaId(){
return headImaId;
}
public void setHeadImaId(int headImaId){
this.headImaId=headImaId;
}
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;
}
}
main
android:id="@+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="10dp">
<ListView
android:id="@+id/lv"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
List
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:orientation="horizontal"
android:padding="5dp">
<ImageView
android:id="@+id/iv_head"
android:layout_width="80dp"
android:layout_height="80dp"
android:src="@drawable/img01"/>
<LinearLayout
android:layout_width="224dp"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:orientation="vertical">
<TextView
android:id="@+id/tv_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="10dp"
android:text="Teacher Feng"
android:textColor="#000000"
android:textSize="20sp" />
<TextView
android:id="@+id/tv_number"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="15456846665"
android:textSize="20sp" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<CheckBox
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
</LinearLayout>
<uses-permission android:name="android.permission.READ_CALL_LOG" /> <uses-permission android:name="android.permission.READ_CONTACTS"/>
android.enableAapt2=false
