2023.3.30

package com.example.myapplication;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;

public class ActionUriActivity extends AppCompatActivity implements View.OnClickListener {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_action_uri);
        findViewById(R.id.btn_dial).setOnClickListener(this);
    }

    @Override
    public void onClick(View view) {
        switch (view.getId())
        {
            case R.id.btn_dial:
                Intent intent =new Intent();
                intent.setAction(Intent.ACTION_DIAL);

                Uri uri=Uri.parse("tel:"+ "123456");
                intent.setData(uri);
                startActivity(intent);
                break;
        }
    }
}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="5dp"
        android:text="按下" />

    <Button
            android:id="@+id/btn_dial"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="拨号"
            android:textColor="@color/black"
            />
        <Button
            android:id="@+id/btn_sms"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="短信"/>
        <Button
            android:id="@+id/btn_"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="拨号"/>




</LinearLayout>