安卓_拨打电话

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在应用内部如何使用拨打电话这个功能?

相信各位老哥老姐都用到过，或在即将用到的路上 --谷哥的炊事班班长。

着重关注的两点：

1 .在Activity中拨打电话呢？亦或者是在Fragment中拨打电话呢？
2 .在Android6.0版本以上拨打电话呢？亦或者是在Android6.0版本以下拨打电话呢？

------------------------------------------下面请看代码：------------------------------------------

拨号代码(在Activity中使用)：

AndroidManifest.xml :  <uses-permission android:name="android.permission.CALL_PHONE" />

 /**
   * 判断版本号拨打电话
   */
private void canCallPhone() {
        //TODO 拨打电话 获取运行时权限
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            if (ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.WRITE_EXTERNAL_STORAGE)
                    != PackageManager.PERMISSION_GRANTED) {
                //申请 CALL_PHONE 权限
                ActivityCompat.requestPermissions(MainActivity.this, new String[]{Manifest.permission.CALL_PHONE},
                        0);
            }
          }
           else {
                Intent intentPhone = new Intent(Intent.ACTION_DIAL);
                intentPhone.setData(Uri.parse("tel:19999999999"));
                MainActivity.this.startActivity(intentPhone);
            
        }
    }

@Override
    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        doNext(requestCode, grantResults);
    }

    private void doNext(int requestCode, int[] grantResults) {
        if (requestCode == 0) {
            if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                Intent intentPhone = new Intent(Intent.ACTION_DIAL);
                intentPhone.setData(Uri.parse("tel:19999999999"));
                MainActivity.this.startActivity(intentPhone);
            } else {
                Toast.makeText(this, "您没有给我权限呀,如需拨打电话,请重新给我授权", Toast.LENGTH_SHORT).show();
            }
        }
    }

如上，就是使用拨号功能所需要的主要代码。

---

在Activity中使用拨号功能：

如果您是在Activity中使用，直接调用即可。

MainActivity.this.findViewById(R.id.activityCallPhone).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                canCallPhone();
            }
        });

在Fragment中使用拨号功能：

1.需要在Fragment中发送一个广播。

inflate.findViewById(R.id.fragmentCallPhone).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //TODO 向主页面发送广播拉起拨号页面
                Intent startActivity = new Intent("callPhone");
                MyFragment.this.getActivity().sendBroadcast(startActivity);
            }
        });

2.在Fragment附属的Activity中注册广播并重写其onReceive函数。

IntentFilter intentFilter = new IntentFilter("callPhone");
BroadcastReceiver phoneBroadcastReceiver = new BroadcastReceiver() {
     @Override
     public void onReceive(Context context, Intent intent) {
           canCallPhone();
        }
    };
MainActivity.this.registerReceiver(phoneBroadcastReceiver, intentFilter);

---

---

下面贴一下整个Demo的完整代码：

1. 布局文件（.xml）：
   ==============我是activity_mian.xml

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

    <Button
        android:id="@+id/activityCallPhone"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:textAllCaps="false"
        android:text="Activity中拨打电话" />

    <FrameLayout
        android:id="@+id/iAmAFragment"
        android:layout_marginTop="68dp"
        android:layout_width="match_parent"

        android:layout_height="match_parent">

    </FrameLayout>
</LinearLayout>

==============我是fragment_mian.xml

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

    <Button
        android:id="@+id/fragmentCallPhone"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:textAllCaps="false"
        android:text="Fragment中拨打电话" />


</LinearLayout>

2. 源代码文件（.java）：
   ==============我是MainActivity.java

package com.iwant.callphone;

import android.Manifest;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.support.v4.app.ActivityCompat;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Toast;

/**
 * Created by YangFan on 2018/05/27.
 */

public class MainActivity extends AppCompatActivity {

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

    /**
     * 设置Activity中拨打电话
     */
    private void setActivityButtonOnClick() {
        MainActivity.this.findViewById(R.id.activityCallPhone).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                canCallPhone();
            }
        });
    }

    /**
     * 判断版本号拨打电话
     */
    private void canCallPhone() {
        //TODO 拨打电话 获取运行时权限
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            if (ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.WRITE_EXTERNAL_STORAGE)
                    != PackageManager.PERMISSION_GRANTED) {
                //申请 CALL_PHONE 权限
                ActivityCompat.requestPermissions(MainActivity.this, new String[]{Manifest.permission.CALL_PHONE},
                        0);
            }} else {
                Intent intentPhone = new Intent(Intent.ACTION_DIAL);
                intentPhone.setData(Uri.parse("tel:19999999999"));
                MainActivity.this.startActivity(intentPhone);
            
        }
    }

    /**
     * 设置Fragment中拨打电话
     */
    private void setFragmentButtonOnClick() {
        setFragment();
        //TODO 接受MyFragment发送的广播
        IntentFilter intentFilter = new IntentFilter("callPhone");
        BroadcastReceiver phoneBroadcastReceiver = new BroadcastReceiver() {
            @Override
            public void onReceive(Context context, Intent intent) {
                canCallPhone();
            }
        };
        MainActivity.this.registerReceiver(phoneBroadcastReceiver, intentFilter);
    }

    /**
     * 把Fragment塞进FrameLayout
     */
    private void setFragment() {
        FragmentManager fm = getSupportFragmentManager();
        FragmentTransaction ft = fm.beginTransaction();
        ft.replace(R.id.iAmAFragment, new MyFragment()).commit();
    }


    @Override
    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        doNext(requestCode, grantResults);
    }

    private void doNext(int requestCode, int[] grantResults) {
        if (requestCode == 0) {
            if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                Intent intentPhone = new Intent(Intent.ACTION_DIAL);
                intentPhone.setData(Uri.parse("tel:19999999999"));
                MainActivity.this.startActivity(intentPhone);
            } else {
                Toast.makeText(this, "您没有给我权限呀,如需拨打电话,请重新给我授权", Toast.LENGTH_SHORT).show();
            }
        }
    }
}

==============我是MyFragment.java

package com.iwant.callphone;

import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

/**
 * Created by YangFan on 2018/05/27.
 */


public class MyFragment extends Fragment {
    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View inflate = inflater.inflate(R.layout.fragment_main, container, false);
        inflate.findViewById(R.id.fragmentCallPhone).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //TODO 向主页面发送广播拉起拨号页面
                Intent startActivity = new Intent("callPhone");
                MyFragment.this.getActivity().sendBroadcast(startActivity);
            }
        });
        return inflate;
    }
}

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