本次主要是结合之前两篇的内容加以优化静态电话本，使之实现长度可变
SimpleAdapter的使用方法：http://blog.csdn.net/feiqinbushizheng/article/details/78823184
AlertDialog的使用方法：http://blog.csdn.net/feiqinbushizheng/article/details/78837711
话不多说，直接开始：
首先我们要定义一下弹出对话框的样式：
新建一个Layout文件：
edit_alert：
<?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="wrap_content">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="姓名："
android:textColor="@color/colorPrimary"
android:textSize="18sp"/>
<EditText
android:id="@+id/editname"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<requestFocus></requestFocus>
</EditText>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="电话："
android:textColor="@color/colorPrimary"
android:textSize="18sp"/>
<EditText
android:id="@+id/editphone"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
</LinearLayout>
其次就是listview的布局文件了，是直接显示在主界面上的
listview：
<?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:id="@+id/listviewlayout">
<QuickContactBadge
android:id="@+id/badge"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:adjustViewBounds="false"
android:scaleType="center"
android:background="@drawable/img1"/>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:id="@+id/name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="@color/colorAccent"
android:textSize="20sp"/>
<TextView
android:id="@+id/phonenum"
android:textColor="@color/colorPrimary"
android:textSize="20sp"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
</LinearLayout>
写完listview的布局文件，我们就在主界面的布局文件中引用这个布局文件，并添加一个Button，作为添加联系人的按钮
activity_main:
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.mico.call.MainActivity">
<ListView
android:id="@+id/listview1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintTop_toTopOf="parent"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp">
</ListView>
<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="添加联系人"
android:onClick="alert_edit"
app:layout_constraintTop_toBottomOf="@id/listview1"/>
</android.support.constraint.ConstraintLayout>
界面写完了，那么就下来先利用SimpleAdapter将电话簿生成：
MainActivity：
public class MainActivity extends AppCompatActivity {
QuickContactBadge quickContactBadge;
SimpleAdapter adapter;
List<Map<String,Object>> listItems;
ListView list;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
list = (ListView)findViewById(R.id.listview1);
final String[] name = {"赵大"};
final String[] strings = {"11111111111"};
listItems = new ArrayList<Map<String, Object>>();
for (int i = 0 ; i < name.length ; i++){
Map<String,Object> map = new HashMap<String, Object>();
map.put("nameimage",null);
map.put("name",name[i]);
map.put("phonenum",strings[i]);
listItems.add(map);
}
adapter = new SimpleAdapter(this,listItems,R.layout.listview,
new String[]{"nameimage","name","phonenum"},new int[]{R.id.badge,R.id.name, R.id.phonenum});
list.setAdapter(adapter);
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
quickContactBadge = (QuickContactBadge)view.findViewById(R.id.badge);
quickContactBadge.assignContactFromPhone(strings[i],false);
}
});
}
}接下来唯一欠缺的就是增加联系人功能了：
在MainActivity中添加方法实现该功能：
public void alert_edit(View view){
LayoutInflater factory = LayoutInflater.from(this);
//三个实例化必须用final，不可更改
final View listview = factory.inflate(R.layout.edit_alert,null);
final EditText editname = (EditText)listview.findViewById(R.id.editname);
final EditText editphone = (EditText)listview.findViewById(R.id.editphone);
new AlertDialog.Builder(this).setTitle("添加联系人")
.setView(listview)
.setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
//按下确定键后的事件,添加一条Item到list中
Toast.makeText(getApplicationContext(),editname.getText().toString(),Toast.LENGTH_LONG).show();
Map<String,Object> map = new HashMap<String, Object>();
map.put("nameimage",null);
map.put("name",editname.getText().toString());
map.put("phonenum",editphone.getText().toString());
listItems.add(map);
adapter = new SimpleAdapter(getApplicationContext(),listItems,R.layout.listview,
new String[]{"nameimage","name","phonenum"},new int[]{R.id.badge,R.id.name, R.id.phonenum});
list.setAdapter(adapter);
}
}).setNegativeButton("取消",null).show();
}效果：
