Android 6.0 运行时权限 easypermissions，permissionsdispatcher ，rxpermissions 三种不同方案的实现

关于android 6.0 运行时权限 ，目前有五种处理方法

危险权限和权限组

权限组 危险权限 CALENDAR READ_CALENDAR WRITE_CALENDAR CONTACTS READ_CONTACTS WRITE_CONTACTS GET_ACCOUNTS LOCATION ACCESS_FINE_LOCATION ACCESS_COARSE_LOCATION MICROPHONE RECORD_AUDIO PHONE READ_PHONE_STATE CALL_PHONE READ_CALL_LOG WRITE_CALL_LOG ADD_VOICEMAIL USE_SIP PROCESS_OUTGOING_CALLS SENSORS BODY_SENSORS SMS SEND_SMS RECEIVE_SMS USE_SIP READ_SMS RECEIVE_WAP_PUSH RECEIVE_MMS STORAGE READ_EXTERNAL_STORAGE WRITE_EXTERNAL_STORAGE

1.. 采用不理睬的方式将项目的targetSdkVersion 设置为22及以下，
如果设备运行的是 Android 5.1（API 级别 22）或更低版本，
并且应用的 targetSdkVersion 是 22 或更低版本，则系统会在安装时要求用户授予权限。
再次强调，系统只告诉用户应用需要的权限组，而不告知具体权限。


2.. 采用系统原生API处理，google原生方案。（采用原生方案，后面会更新。。。。）


3.. easypermissions 基于注解，采用反射，影响性能

package com.example.administrator.permissionstest;import android.Manifest;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.util.Log;import android.view.View;import android.widget.TextView;import android.widget.Toast;import java.util.List;import pub.devrel.easypermissions.EasyPermissions;public class EasyActivity extends AppCompatActivity implements EasyPermissions.PermissionCallbacks {    private static final int RC_CALL_PHONE = 0;    private String TAG= "EasyActivity";    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_common);        TextView permissions = (TextView) findViewById(R.id.permissions);        permissions.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                String[] perms = {Manifest.permission.CALL_PHONE};                EasyPermissions.requestPermissions(EasyActivity.this, "直接拨打电话的权限",                        RC_CALL_PHONE, perms);            }        });    }    @Override    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {        super.onRequestPermissionsResult(requestCode, permissions, grantResults);        //Forward results to EasyPermissions        Toast.makeText(getApplicationContext(), "onRequestPermissionsResult    requestCode" + requestCode, Toast.LENGTH_LONG).show();        EasyPermissions.onRequestPermissionsResult(requestCode, permissions, grantResults, this);    }    @Override    public void onPermissionsGranted(int requestCode, List<String> perms) {        if (perms != null && perms.size() > 0)            for (String item : perms) {                Log.d(TAG,"onPermissionsGranted    "+item);            }    }    @Override    public void onPermissionsDenied(int requestCode, List<String> perms) {        if (perms != null && perms.size() > 0)            for (String item : perms) {                Log.d(TAG,"onPermissionsDenied    "+item);            }    }}

4.. permissionsdispatcher 基于注解，编译生成类，无反射，不影响性能

package com.example.administrator.permissionstest;import android.Manifest;import android.content.DialogInterface;import android.content.Intent;import android.os.Bundle;import android.support.annotation.NonNull;import android.support.v7.app.AlertDialog;import android.support.v7.app.AppCompatActivity;import android.util.Log;import android.view.View;import android.widget.TextView;import android.widget.Toast;import permissions.dispatcher.NeedsPermission;import permissions.dispatcher.OnNeverAskAgain;import permissions.dispatcher.OnPermissionDenied;import permissions.dispatcher.OnShowRationale;import permissions.dispatcher.PermissionRequest;import permissions.dispatcher.RuntimePermissions;@RuntimePermissionspublic class DispatcherActivity extends AppCompatActivity {    private String TAG = "DispatcherActivity";    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_common);        TextView permissions = (TextView) findViewById(R.id.permissions);        permissions.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                Log.d(TAG, "showCameraWithCheck ");                DispatcherActivityPermissionsDispatcher.showCameraWithCheck(DispatcherActivity.this);            }        });    }    @Override    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {        super.onRequestPermissionsResult(requestCode, permissions, grantResults);        // NOTE: delegate the permission handling to generated method        DispatcherActivityPermissionsDispatcher.onRequestPermissionsResult(this, requestCode, grantResults);    }    @NeedsPermission(Manifest.permission.CAMERA)    void showCamera() {        Log.d(TAG, "showCamera ");        Intent intent = new Intent(); //调用照相机        intent.setAction("android.media.action.STILL_IMAGE_CAMERA");        startActivity(intent);    }    @OnShowRationale(Manifest.permission.CAMERA)    void showRationaleForCamera(final PermissionRequest request) {        Log.d(TAG, "showRationaleForCamera ");        new AlertDialog.Builder(this)                .setMessage("使用此功能需要打开照相机的权限")                .setPositiveButton("允许", new DialogInterface.OnClickListener() {                    @Override                    public void onClick(DialogInterface dialog, int which) {                        request.proceed();                    }                })                .setNegativeButton("拒绝", new DialogInterface.OnClickListener() {                    @Override                    public void onClick(DialogInterface dialog, int which) {                        request.cancel();                    }                })                .show();    }    @OnPermissionDenied(Manifest.permission.CAMERA)    void showDeniedForCamera() {        Log.d(TAG, "showDeniedForCamera ");        Toast.makeText(this, "你拒绝了权限，该功能不可用", Toast.LENGTH_SHORT).show();    }    @OnNeverAskAgain(Manifest.permission.CAMERA)    void showNeverAskForCamera() {        Log.d(TAG, "showNeverAskForCamera ");        Toast.makeText(this, "用户设置不再询问权限申请", Toast.LENGTH_SHORT).show();     //   Toast.makeText(this, " R.string.permission_camera_neverask", Toast.LENGTH_SHORT).show();    }}

5.. rxpermissions 基于Rxjava, Rxjava1.0版本跟2.0版本都有（本文采用Rxjava2.0）

 package com.example.administrator.permissionstest;import android.Manifest;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.util.Log;import android.view.View;import android.widget.TextView;import android.widget.Toast;import com.tbruyelle.rxpermissions2.Permission;import com.tbruyelle.rxpermissions2.RxPermissions;import io.reactivex.functions.Consumer;import pub.devrel.easypermissions.EasyPermissions;public class RxActivity extends AppCompatActivity{    private String TAG= "RxActivity";//READ_EXTERNAL_STORAGE    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_common);        TextView permissions = (TextView) findViewById(R.id.permissions);        permissions.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {             //   RxPermissions rxPermission = new RxPermissions(RxActivity.this);                requestPermission();            }        });    }    public void requestPermission(){        RxPermissions rxPermissions = new RxPermissions(this);        rxPermissions.requestEach(Manifest.permission.READ_EXTERNAL_STORAGE).subscribe(new Consumer<Permission>() {            @Override            public void accept(Permission permission) throws Exception {                if (permission.granted) {                    // 用户已经同意该权限                    Toast.makeText(getApplicationContext(),"用户已经同意该权限",Toast.LENGTH_SHORT).show();                    Log.d(TAG, permission.name + " is granted.");                } else if (permission.shouldShowRequestPermissionRationale) {                    // 用户拒绝了该权限，没有选中『不再询问』（Never ask again）,那么下次再次启动时，还会提示请求权限的对话框                    Toast.makeText(getApplicationContext(),"用户拒绝了该权限",Toast.LENGTH_SHORT).show();                    Log.d(TAG, permission.name + " is denied. More info should be provided.");                } else {                    // 用户拒绝了该权限，并且选中『不再询问』                    Toast.makeText(getApplicationContext(),"用户拒绝了该权限，并且选中『不再询问』",Toast.LENGTH_SHORT).show();                    Log.d(TAG, permission.name + " is denied.");                }            }        });    }    @Override    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {        super.onRequestPermissionsResult(requestCode, permissions, grantResults);        //Forward results to EasyPermissions        Toast.makeText(getApplicationContext(), "onRequestPermissionsResult    requestCode" + requestCode, Toast.LENGTH_LONG).show();        EasyPermissions.onRequestPermissionsResult(requestCode, permissions, grantResults, this);    }}

PS：本人写的一个小Demo 里面包含了easypermissions，permissionsdispatcher ，rxpermissions
三种插件的用法
permissions Demo

Google官方github Demo