android学习笔记2-------电话拨号器

思路：
1>设计界面
2>设计Activity
3>编写业务层代码
效果图：

import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;

public class bohaoActivity extends Activity
{
    private EditText editText;
    private Button button;
    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        editText=(EditText)findViewById(R.id.editText);
        button=(Button)findViewById(R.id.button);

        button.setOnClickListener(new OnClickListener()
        {

            @Override
            public void onClick(View v)
            {
                String mobileString=editText.getText().toString();
                Intent intent=new Intent(Intent.ACTION_CALL, Uri.parse("tel:"+mobileString));
                bohaoActivity.this.startActivity(intent);
            }
        });
    }
}
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;

public class bohaoActivity extends Activity
{
private EditText editText;
private Button button;
@Override
public void onCreate(Bundle savedInstanceState)
{
  super.onCreate(savedInstanceState);
  setContentView(R.layout.main);
  editText=(EditText)findViewById(R.id.editText);
  button=(Button)findViewById(R.id.button);

  button.setOnClickListener(new OnClickListener()
  {

   @Override
   public void onClick(View v)
   {
    String mobileString=editText.getText().toString();
    Intent intent=new Intent(Intent.ACTION_CALL, Uri.parse("tel:"+mobileString));
    bohaoActivity.this.startActivity(intent);
   }
  });
}
}

main.xml文件

[java]
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
<TextView
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="请输入手机号："
    />
<EditText
    android:id="@+id/editText"
    android:layout_height="wrap_content"
    android:layout_width="match_parent"
    ></EditText>

<Button
    android:id="@+id/button"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="拨打此号码"
    ></Button>

</LinearLayout>
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
<TextView
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="请输入手机号："
    />
<EditText
android:id="@+id/editText"
android:layout_height="wrap_content"
android:layout_width="match_parent"
></EditText>

<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="拨打此号码"
></Button>

</LinearLayout>

添加权限：

<uses-permission android:name="android.permission.CALL_PHONE"></uses-permission>

摘自奔跑的蜗牛

补充：移动开发 , Android ,