Android7.0动态申请打电话的权限

墨蓝 2022-07-12 08:42 417阅读 0赞

新建一个Android工程，在布局文件里面加入一个拨打电话按钮。

> > ![20170219102245328][]

点击拨打电话之后，弹出对话框让用户选择是否允许申请权限。

> > ![20170219102359689][]

当用户点击YES之后，就向系统申请权限。

> > ![20170219102439993][]

布局文件如下，在布局文件中加入按钮，同时注册响应事件，callButtonClickAction：

<?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:paddingLeft="@dimen/activity_horizontal_margin"
        android:paddingRight="@dimen/activity_horizontal_margin"
        android:paddingTop="@dimen/activity_vertical_margin"
        android:paddingBottom="@dimen/activity_vertical_margin"
        android:orientation="vertical"
        tools:context="comnii.activity.MainActivity">
    
       <Button
               android:id="@+id/callButton"
               android:onClick="callButtonClickAction"
               android:text="拨打电话"
               android:layout_gravity="center"
               android:layout_width="wrap_content"
               android:layout_height="wrap_content"/>
    
    
    </LinearLayout>

Manifest.xml文件，添加android.permission.CALL\_PHONE打电话的权限。

<?xml version="1.0" encoding="utf-8"?>
    <manifest xmlns:android="http://schemas.android.com/apk/res/android"
        package="comnii.activity" >
    
        
        <uses-permission android:name="android.permission.CALL_PHONE"/>
    
        
        <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    
    
    
        <application
            android:allowBackup="true"
            android:icon="@mipmap/ic_launcher"
            android:label="@string/app_name"
            android:supportsRtl="true"
            android:exported="true"
            android:theme="@style/AppTheme" >
            <activity android:name=".MainActivity" >
                <intent-filter>
                    <action android:name="android.intent.action.MAIN" />
    
                    <category android:name="android.intent.category.LAUNCHER" />
                </intent-filter>
            </activity>
        </application>
    
    </manifest>

下面是MainActivity.java的代码，注意看代码注释，注释写的很详细

import android.Manifest;
    import android.app.Dialog;
    import android.content.Context;
    import android.content.DialogInterface;
    import android.content.Intent;
    import android.content.pm.PackageManager;
    import android.net.Uri;
    import android.os.Build;
    import android.support.v4.app.ActivityCompat;
    import android.support.v4.content.ContextCompat;
    import android.support.v7.app.AppCompatActivity;
    import android.os.Bundle;
    import android.view.View;
    import android.widget.Toast;
    import comnii.activity.type.RequestPermissionType;
    import comnii.activity.util.DialogUtil;
    
    public class MainActivity extends AppCompatActivity
    {
    
        /**
         * context
         */
        private Context mContext;
    
        @Override
        protected void onCreate(Bundle savedInstanceState)
        {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
    
            this.mContext = this;
        }
    
        /**
         * 点击打电话的按钮响应事件
         *
         * @param view view
         */
        public void callButtonClickAction(View view)
        {
    
            //先new出一个监听器，设置好监听
            DialogInterface.OnClickListener dialogOnclicListener = new DialogInterface.OnClickListener()
            {
    
                @Override
                public void onClick(DialogInterface dialog, int which)
                {
                    switch (which)
                    {
                        case Dialog.BUTTON_POSITIVE:
                            Toast.makeText(MainActivity.this, "Yes" + which, Toast.LENGTH_SHORT).show();
                            requestPermission();
                            break;
                        case Dialog.BUTTON_NEGATIVE:
                            Toast.makeText(MainActivity.this, "No" + which, Toast.LENGTH_SHORT).show();
                            break;
                        case Dialog.BUTTON_NEUTRAL:
                            Toast.makeText(MainActivity.this, "Cancel" + which, Toast.LENGTH_SHORT).show();
                            break;
                    }
                }
            };
    
            //弹窗让用户选择，是否允许申请权限
            DialogUtil.showConfirm(mContext, "申请权限", "是否允许获取打电话权限？", dialogOnclicListener, dialogOnclicListener);
        }
    
        /**
         * 申请权限
         */
        private void requestPermission()
        {
            //判断Android版本是否大于23
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
            {
                int checkCallPhonePermission = ContextCompat.checkSelfPermission(mContext, Manifest.permission.CALL_PHONE);
    
                if (checkCallPhonePermission != PackageManager.PERMISSION_GRANTED)
                {
                    ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.CALL_PHONE},
                            RequestPermissionType.REQUEST_CODE_ASK_CALL_PHONE);
                    return;
                }
                else
                {
                    callPhone();
                }
            }
            else
            {
                callPhone();
            }
        }
    
        /**
         * 注册权限申请回调
         * @param requestCode 申请码
         * @param permissions 申请的权限
         * @param grantResults 结果
         */
        @Override
        public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults)
        {
            switch (requestCode)
            {
                case  RequestPermissionType.REQUEST_CODE_ASK_CALL_PHONE:
                    if (grantResults[0] == PackageManager.PERMISSION_GRANTED)
                    {
                        callPhone();
                    }
                    else
                    {
                        // Permission Denied
                        Toast.makeText(MainActivity.this, "CALL_PHONE Denied", Toast.LENGTH_SHORT).show();
                    }
                    break;
                default:
                    super.onRequestPermissionsResult(requestCode, permissions, grantResults);
            }
        }
    
        /**
         * 拨号方法
         */
        private void callPhone()
        {
            Intent intent = new Intent();
            intent.setAction(Intent.ACTION_CALL);
            intent.setData(Uri.parse("tel:10086"));
            startActivity(intent);
        }
    }

DialogUtil,java是是弹窗工具类

package comnii.activity.util;
    
    import android.app.Activity;
    import android.app.AlertDialog;
    import android.content.Context;
    import android.content.DialogInterface;
    import android.view.WindowManager;
    
    /**
     * 对话框工具箱
     *
     * @author xiaopan
     */
    public class DialogUtil
    {
        /**
         * 显示一个对话框
         *
         * @param context                    上下文对象，最好给Activity，否则需要android.permission.SYSTEM_ALERT_WINDOW
         * @param title                      标题
         * @param message                    消息
         * @param confirmButton              确认按钮
         * @param confirmButtonClickListener 确认按钮点击监听器
         * @param centerButton               中间按钮
         * @param centerButtonClickListener  中间按钮点击监听器
         * @param cancelButton               取消按钮
         * @param cancelButtonClickListener  取消按钮点击监听器
         * @param onShowListener             显示监听器
         * @param cancelable                 是否允许通过点击返回按钮或者点击对话框之外的位置关闭对话框
         * @param onCancelListener           取消监听器
         * @param onDismissListener          销毁监听器
         * @return 对话框
         */
        public static AlertDialog showAlert(Context context, String title, String message,
                                            String confirmButton, DialogInterface.OnClickListener confirmButtonClickListener,
                                            String centerButton, DialogInterface.OnClickListener centerButtonClickListener,
                                            String cancelButton, DialogInterface.OnClickListener cancelButtonClickListener,
                                            DialogInterface.OnShowListener onShowListener, boolean cancelable,
                                            DialogInterface.OnCancelListener onCancelListener,
                                            DialogInterface.OnDismissListener onDismissListener)
        {
            AlertDialog.Builder promptBuilder = new AlertDialog.Builder(context);
            if (title != null)
            {
                promptBuilder.setTitle(title);
            }
            if (message != null)
            {
                promptBuilder.setMessage(message);
            }
            if (confirmButton != null)
            {
                promptBuilder.setPositiveButton(confirmButton, confirmButtonClickListener);
            }
            if (centerButton != null)
            {
                promptBuilder.setNeutralButton(centerButton, centerButtonClickListener);
            }
            if (cancelButton != null)
            {
                promptBuilder.setNegativeButton(cancelButton, cancelButtonClickListener);
            }
            promptBuilder.setCancelable(true);
            if (cancelable)
            {
                promptBuilder.setOnCancelListener(onCancelListener);
            }
    
            AlertDialog alertDialog = promptBuilder.create();
            if (!(context instanceof Activity))
            {
                alertDialog.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT);
            }
            alertDialog.setOnDismissListener(onDismissListener);
            alertDialog.setOnShowListener(onShowListener);
            alertDialog.show();
            return alertDialog;
        }
    
    
        /**
         * 显示一个对话框
         *
         * @param context                    上下文对象，最好给Activity，否则需要android.permission.SYSTEM_ALERT_WINDOW
         * @param title                      标题
         * @param message                    消息
         * @param confirmButtonClickListener 确认按钮点击监听器
         * @param cancelButtonClickListener  取消按钮点击监听器
         * @return 对话框
         */
        public static AlertDialog showConfirm(Context context, String title, String message,
                                            DialogInterface.OnClickListener confirmButtonClickListener,
                                            DialogInterface.OnClickListener cancelButtonClickListener)
        {
            return showAlert(context, title, message, "Yes",
                    confirmButtonClickListener, null, null, "No", cancelButtonClickListener, null, true, null, null);
        }
    
    
        /**
         * 显示一个提示框
         *
         * @param context       上下文对象，最好给Activity，否则需要android.permission.SYSTEM_ALERT_WINDOW
         * @param message       提示的消息
         * @param confirmButton 确定按钮的名字
         */
        public static AlertDialog showPrompt(Context context, String message, String confirmButton)
        {
            return showAlert(context, null, message, confirmButton, null, null, null, null, null, null, true, null, null);
        }
    
    
    
        /**
         * 显示一个提示框
         *
         * @param context 上下文对象，最好给Activity，否则需要android.permission.SYSTEM_ALERT_WINDOW
         * @param message 提示的消息
         */
        public static AlertDialog showPrompt(Context context, String message)
        {
            return showAlert(context, null, message, "OK", null, null, null, null, null, null, true, null, null);
        }
    }

RequestPermissionType.java是申请的权限Code

/**
     * Created by wzj on 2017/2/19.
     */
    public interface RequestPermissionType
    {
    
        /**
         * 请求打电话的权限码
         */
        int REQUEST_CODE_ASK_CALL_PHONE = 100;
    }

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[20170219102245328]: /images/20220710/4eede7e9cf954219a2acf4e467d9dc9f.png
[20170219102359689]: /images/20220710/1b0d5af6dee5435eaf41c5802b99f1ef.png
[20170219102439993]: /images/20220710/1486827c293c4dc280c78b2692ee154b.png