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:

"1.0" encoding="utf-8"?>

    xmlns:android=""
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">

        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="请输入电话号码：" />

        android:id="@+id/editText1"
        android:phoneNumber="true"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

        android:text="查询电话号码"
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

        android:text="CALL"
        android:id="@+id/button2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

AndroidManifest.xml:
注意里面权限的添加：

"1.0" encoding="utf-8"?>
""
      package="com.amaker.call"
      android:versionCode="1"
      android:versionName="1.0">
    "8" />
    "android.permission.READ_CONTACTS">
    "android.permission.CALL_PHONE">

    "@drawable/icon" android:label="@string/app_name">
        ".MainActivity"
                  android:label="@string/app_name">

                "android.intent.action.MAIN" />
                "android.intent.category.LAUNCHER" />