作者:程序员小冰,GitHub主页:https://github.com/QQ986945193
新浪微博:http://weibo.com/mcxiaobing
首先先给大家看一下最终实现的效果:
其实这个案例的demo实在是太简单了。不过此功能也是非常强大,用处挺多的,
就像所谓的蚂蚁虽小,五脏俱全。我们可以用它集成在我们的app中。
拨打客服电话之类的。所以下面看代码吗,首先我们写好布局:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<EditText
android:id="@+id/et_phone_num"
android:layout_width="match_parent"
android:layout_height="60dp"
android:hint="请输入手机号码" />
<Button
android:id="@+id/btn_call_phone"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="点击拨打电话" />
</LinearLayout>
然后java代码中实现拨打电话的功能
`package davidappcheckupdate.qq986945193.com.callphonedavidapp;
import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
/**
* @author :程序员小冰
* @新浪微博 :http://weibo.com/mcxiaobing
* @GitHub:https://github.com/QQ986945193
* @CSDN博客: http://blog.csdn.net/qq_21376985
* @交流Qq :986945193
*/
public class MainActivity extends AppCompatActivity {
private EditText etPhone;
private Button btnPhone;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
etPhone = (EditText) findViewById(R.id.et_phone_num);
btnPhone = (Button) findViewById(R.id.btn_call_phone);
btnPhone.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (etPhone.getText().toString().trim() == null || etPhone.getText().toString().trim().equals("")) {
Toast.makeText(MainActivity.this, "对不起,电话不能为空", Toast.LENGTH_SHORT).show();
return;
} else if (etPhone.getText().toString().trim() != null && !(etPhone.getText().toString().trim().equals(""))) {
Intent intent = new Intent(Intent.ACTION_CALL, Uri.parse("tel:"
+ etPhone.getText().toString().trim()));
if (ActivityCompat.checkSelfPermission(MainActivity.this, Manifest.permission.CALL_PHONE) != PackageManager.PERMISSION_GRANTED) {
return;
}
startActivity(intent);
}
}
});
}
}
`
最后重要的一点就是,添加拨打电话的权限在AndroidManifest.xml:
<uses-permission android:name="android.permission.CALL_PHONE" />
好了,教程到此结束。想要源代码的请看下面下载链接:
(AndroidStudio版)github下载地址:
https://github.com/QQ986945193/CallPhoneDavidApp
(AndroidStudio版)git开源中国下载地址:
http://git.oschina.net/MCXIAOBING/CallPhoneDavidApp
(AndroidStudio版)CSDN免积分下载地址:
http://download.csdn.net/detail/qq_21376985/9623854