郑州app开发android短信发送器。在这个案例中,比较重要的是这两个函数。onActivityResult和setResult。还有显示意图的应用。
MainActivity.java代码
package cn.xhhkj.cyd;
import androidx.appcompat.app.AppCompatActivity;
import android.app.PendingIntent;
import android.content.Intent;
import android.os.Bundle;
import android.telephony.SmsManager;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
public class MainActivity extends AppCompatActivity implements View.OnClickListener {
private static final int GET_CONTACT_REQ = 1;
private static final int GET_REPLY_REQ = 3;
private EditText et_number;
private EditText et_content;
private Button btn_contact;
private Button btn_reply;
private Button btn_send;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
et_number = findViewById(R.id.et_number);
et_content = findViewById(R.id.et_smsContent);
btn_contact = findViewById(R.id.btn_contact);
btn_reply = findViewById(R.id.btn_reply);
btn_send = findViewById(R.id.btn_send);
btn_contact.setOnClickListener(this);
btn_reply.setOnClickListener(this);
btn_send.setOnClickListener(this);
}
@Override
public void onClick(View v){
int id = v.getId();
switch (id){
case R.id.btn_contact:
Intent intent = new Intent(getApplicationContext(),ContactActivity.class);
startActivityForResult(intent, GET_CONTACT_REQ);
break;
case R.id.btn_reply:
Intent intent2 = new Intent(getApplicationContext(),ReplyActivity.class);
startActivityForResult(intent2, GET_REPLY_REQ);
break;
case R.id.btn_send:
SmsManager manager = SmsManager.getDefault();
String destinationAddress = et_number.getText().toString().trim();
String scAddress = null;
String text = et_content.getText().toString().trim();
PendingIntent sentIntent = null;
PendingIntent deliveryIntent = null;
manager.sendTextMessage(destinationAddress, scAddress, text, sentIntent, deliveryIntent);
break;
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data){
super.onActivityResult(requestCode, resultCode, data);
if(data==null){
return;
}
switch (requestCode){
case GET_CONTACT_REQ:
String phone = data.getStringExtra("phone");
et_number.setText(phone);
break;
case GET_REPLY_REQ:
String extra = data.getStringExtra("content");
et_content.setText(extra);
break;
}
}
}
ContactActivity.java代码
package cn.xhhkj.cyd;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.ListView;
import android.widget.TextView;
import java.util.ArrayList;
public class ContactActivity extends Activity {
protected static final int GET_CONTACT_RES = 2;
private ArrayList<Contact> contacts = new ArrayList<Contact>();
@Override
protected void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_contact);
ListView lv_contact = (ListView) findViewById(R.id.lv_contact);
for(int i = 0;i<20;i++){
Contact contact = new Contact();
contact.name="zhangsan"+i;
contact.phone = "138888888"+i;
contacts.add(contact);
}
MyAdapter adapter = new MyAdapter();
lv_contact.setAdapter(adapter);
lv_contact.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
Contact contact = contacts.get(position);
Intent data = new Intent();
data.putExtra("phone", contact.phone);
setResult(GET_CONTACT_RES, data);
finish();
}
});
}
@Override
public void onBackPressed(){
}
private class MyAdapter extends BaseAdapter {
@Override
public int getCount() {
// TODO Auto-generated method stub
return contacts.size();
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return contacts.get(position);
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = null;
if(convertView == null){
view = View.inflate(getApplicationContext(), R.layout.item_contact, null);
}else{
view = convertView;
}
TextView tv_name = (TextView) view.findViewById(R.id.tv_name);
TextView tv_phone = (TextView) view.findViewById(R.id.tv_phone);
Contact contact = contacts.get(position);
tv_name.setText(contact.name);
tv_phone.setText(contact.phone);
return view;
}
}
}
ReplyActivity.java代码
package cn.xhhkj.cyd;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
public class ReplyActivity extends Activity {
private String[] smss ={"111","222","333","444","555","666","777"};
@Override
protected void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_reply);
ListView lv_reply = (ListView) findViewById(R.id.lv_reply);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(getApplicationContext(), R.layout.item_reply, smss);
lv_reply.setAdapter(adapter);
lv_reply.setOnItemClickListener(new AdapterView.OnItemClickListener(){
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
String result = smss[position];
Intent data = new Intent();
data.putExtra("content", result);
setResult(4,data);
finish();
}
});
}
}
Contact.java代码
package cn.xhhkj.cyd;
public class Contact {
public String name;
public String phone;
@Override
public String toString() {
return "Contact [name=" + name + ", phone=" + phone + "]";
}
}
布局代码就简单很多了
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" }
{Button
android:id="@+id/btn_contact"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:text="+" /}
{EditText
android:id="@+id/et_number"
android:layout_toLeftOf="@id/btn_contact"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="numberSigned"
android:hint="请输入电话号码" /}
{EditText
android:layout_marginTop="10dp"
android:layout_below="@id/et_number"
android:id="@+id/et_smsContent"
android:layout_width="match_parent"
android:layout_height="240dp"
android:hint="请输入短信内容"
android:gravity="top"
/}
{Button
android:layout_below="@id/et_smsContent"
android:id="@+id/btn_reply"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="快速回复"/}
{Button
android:layout_below="@id/btn_reply"
android:id="@+id/btn_send"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="发送短信"/}
{/RelativeLayout}
由于网站篇幅有限,再加上视图布局没有什么好做的,就不粘贴了,以下是个运行的图片,仅供参考。