拨打电话简单Demo

package com.amaker.call;

import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
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;

/**
 * 1，打电话测试
 *,2，从联系人中获取电话号码，拨打
 * ZZL
 */
public class MainActivity extends Activity {
	private Button btn_select;
	private Button btn_call;
	private EditText et_number;

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);

		btn_select = (Button) findViewById(R.id.button1);
		btn_call = (Button) findViewById(R.id.button2);
		et_number = (EditText) findViewById(R.id.editText1);

		btn_select.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View v) {
				select();
			}
		});

		btn_call.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View v) {
				call();
			}
		});
	}
	
	@Override
	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
		super.onActivityResult(requestCode, resultCode, data);
			Uri uri = data.getData();
			String[] strs = {"number"};
			Cursor c = managedQuery(uri, strs, null, null, null);
			c.moveToFirst();
			String number = c.getString(c.getColumnIndexOrThrow("number"));
			et_number.setText(number);
			
		
		
	}
	//查找联系人
	void select(){
		Intent intent = new Intent();
		String action = Intent.ACTION_GET_CONTENT;
		String type = "vnd.android.cursor.item/phone";
		intent.setAction(action);
		intent.setType(type);
		startActivityForResult(intent, 0);
		
	}
	//打电话
	void call(){
		String action = Intent.ACTION_CALL;
		String number = et_number.getText().toString();
		Uri data = Uri.parse("tel:"+number);
		Intent intent = new Intent();
		intent.setAction(action);
		intent.setData(data);
		startActivity(intent);
		
	}
}

main.xml:

<?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="请输入电话号码：" />
	<EditText
		android:id="@+id/editText1"
		android:phoneNumber="true"
		android:layout_width="match_parent"
		android:layout_height="wrap_content" />
	<Button
		android:text="查询电话号码"
		android:id="@+id/button1"
		android:layout_width="wrap_content"
		android:layout_height="wrap_content" />
	<Button
		android:text="CALL"
		android:id="@+id/button2"
		android:layout_width="wrap_content"
		android:layout_height="wrap_content" />
</LinearLayout>

AndroidManifest.xml:
注意里面权限的添加：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.amaker.call"
      android:versionCode="1"
      android:versionName="1.0">
    <uses-sdk android:minSdkVersion="8" />
    <uses-permission android:name="android.permission.READ_CONTACTS"></uses-permission>
    <uses-permission android:name="android.permission.CALL_PHONE"></uses-permission>

    <application android:icon="@drawable/icon" android:label="@string/app_name">
        <activity android:name=".MainActivity"
                  android:label="@string/app_name">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

    </application>
</manifest>