打电话，发短信

打电话，发短信的权限：
<uses-permission android:name="android.permission.CALL_PHONE"></uses-permission>
<uses-permission android:name="android.permission.SEND_SMS"></uses-permission>








布局：

<Button
    android:id="@+id/btn1"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text="打电话"
    />
 <Button
     android:id="@+id/btn2"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     android:text="发短信"
     android:layout_below="@+id/btn1"
 />

代码：

package com.example.fuxin_zhongji;

import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;

public class MainActivity extends AppCompatActivity implements View.OnClickListener {

    private Button btn1;
    private Button btn2;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        initView();
    }

    private void initView() {
        btn1 = (Button) findViewById(R.id.btn1);
        btn2 = (Button) findViewById(R.id.btn2);

        btn1.setOnClickListener(this);
        btn2.setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.btn1:
                call("13265159852");
                break;
            case R.id.btn2:
             sendSms(this,"123213213","445646546");
                break;
        }
    }

    private void sendSms(Context context,String phone,String body) {
        Intent sen=new Intent(Intent.ACTION_SENDTO);
        sen.setData(Uri.parse("smsto:"+phone));
        sen.putExtra("sms_body",body);
        context.startActivity(sen);
    }

    private void call(String phone) {
  Intent intent = new Intent(Intent.ACTION_DIAL,Uri.parse("tel:"+phone));
        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        startActivity(intent);
    }
}