Android学习笔记(一)

一、拨号器

PhoneActivity.java

Java代码

package com.wp.activity;  
 
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;  
 
public class PhoneActivity extends Activity {
    private EditText mobileText;
    private Button button;  
 
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        mobileText = (EditText) this.findViewById(R.id.mobile);
        button = (Button) this.findViewById(R.id.button);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View arg0) {
                String mobile = mobileText.getText().toString();
                Intent intent = new Intent(Intent.ACTION_CALL, Uri.parse("tel:"
                        + mobile));
                PhoneActivity.this.startActivity(intent);
            }
        });
    }
}

Xml代码

二、短信发送器

SMSActivity.java

Java代码

package org.wp.activity;  
 
import java.util.List;
import android.app.Activity;
import android.os.Bundle;
import android.telephony.SmsManager;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;  
 
public class SMSActivity extends Activity {
    private EditText mobileText;
    private EditText contentText;
    private Button button;  
 
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        mobileText = (EditText) findViewById(R.id.mobile);
        contentText = (EditText) findViewById(R.id.content);
        button = (Button) findViewById(R.id.button);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View arg0) {
                String mobile = mobileText.getText().toString();
                String content = contentText.getText().toString();
                SmsManager smsManager = SmsManager.getDefault();
                if (content.length() > 70) {
                    List contents = smsManager.divideMessage(content);
                    for (String sms : contents) {
                        smsManager.sendTextMessage(mobile, null, sms, null,
                                null);
                    }
                } else {
                    smsManager.sendTextMessage(mobile, null, content, null,
                            null);
                }
                Toast.makeText(SMSActivity.this, R.string.info,
                        Toast.LENGTH_SHORT).show();
            }
        });
    }
}

Xml代码