先上UI效果图
点击联系博主
拒绝权限
同意权限
直接拨号
跳转到拨号界面
跳转到拨号界面 同时附带号码
文章来源：https://www.toymoban.com/news/detail-700305.html
代码实现
AndroidManifest.xml中添加权限
<uses-permission android:name="android.permission.CALL_PHONE" />
点击联系博主
contactBlogger.setOnClickListener(v -> {
callPhone();
// callUI();
// callPhoneUI();
});
判断是否有拨号权限
// 判断是否有拨号权限
private boolean ifHaveCallPhonePermission() {
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.CALL_PHONE) != PackageManager.PERMISSION_GRANTED) {
// 动态申请权限
ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.CALL_PHONE}, CALL_PHONE_REQUEST_CODE);
return false;
}
return true;
}
申请权限回调
// 申请权限回调
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
if (requestCode == CALL_PHONE_REQUEST_CODE) {
if (permissions.length != 0 && grantResults[0] != PackageManager.PERMISSION_GRANTED) {
Toast.makeText(this, "请添加拨号权限后重试", Toast.LENGTH_SHORT).show();
} else {
callPhone();
// callUI();
// callPhoneUI();
}
}
}
直接拨号
// 直接拨号
private void callPhone() {
if (ifHaveCallPhonePermission()) {
startActivity(new Intent(Intent.ACTION_CALL, Uri.parse(phone)));
}
}
跳转到拨号界面
// 跳转到拨号界面
private void callUI() {
if (ifHaveCallPhonePermission()) {
startActivity(new Intent(Intent.ACTION_CALL_BUTTON));
}
}
跳转到拨号界面 同时附带号码
// 跳转到拨号界面 同时附带号码
private void callPhoneUI() {
if (ifHaveCallPhonePermission()) {
startActivity(new Intent(Intent.ACTION_DIAL, Uri.parse(phone)));
}
}
完整代码
MainActivity.java
package top.gaojc.callphonedemo;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Bundle;
import android.widget.Button;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
private Button contactBlogger;
private final String phone = "tel:13103679960";
private final int CALL_PHONE_REQUEST_CODE = 10001;//拨号请求码
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
contactBlogger = findViewById(R.id.contact_blogger);
contactBlogger.setOnClickListener(v -> {
callPhone();
// callUI();
// callPhoneUI();
});
}
// 判断是否有拨号权限
private boolean ifHaveCallPhonePermission() {
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.CALL_PHONE) != PackageManager.PERMISSION_GRANTED) {
// 动态申请权限
ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.CALL_PHONE}, CALL_PHONE_REQUEST_CODE);
return false;
}
return true;
}
// 申请权限回调
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
if (requestCode == CALL_PHONE_REQUEST_CODE) {
if (permissions.length != 0 && grantResults[0] != PackageManager.PERMISSION_GRANTED) {
Toast.makeText(this, "请添加拨号权限后重试", Toast.LENGTH_SHORT).show();
} else {
callPhone();
// callUI();
// callPhoneUI();
}
}
}
// 直接拨号
private void callPhone() {
if (ifHaveCallPhonePermission()) {
startActivity(new Intent(Intent.ACTION_CALL, Uri.parse(phone)));
}
}
// 跳转到拨号界面
private void callUI() {
if (ifHaveCallPhonePermission()) {
startActivity(new Intent(Intent.ACTION_CALL_BUTTON));
}
}
// 跳转到拨号界面 同时附带号码
private void callPhoneUI() {
if (ifHaveCallPhonePermission()) {
startActivity(new Intent(Intent.ACTION_DIAL, Uri.parse(phone)));
}
}
}
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout 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"
tools:context=".MainActivity">
<Button
android:id="@+id/contact_blogger"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="@string/contact_blogger" />
</FrameLayout>
demo下载
demo下载文章来源地址https://www.toymoban.com/news/detail-700305.html
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