Android动态权限管理

做安卓其实挺费劲的，各种机型都够操心了，动态权限又恶心了一下

but 项目中针对6.0以上手机，还是必要处理一下权限申请的问题！！

首先，判断是否6.0以上，判断是否申请权限，拒绝了的权限怎么办？（android机型比较多，三星手机弹出申请弹框拒绝了，第二次还是会弹出权限申请框；但是我用的小米4，拒绝了第二次就默认拒绝了不会弹框；还有一些手机低版本的会一直弹框）

权限工具类：

import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Build;
import android.provider.Settings;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v4.content.PermissionChecker;

import com.motian.permissionrequest.ToastUtils;

import java.util.ArrayList;
import java.util.List;

import static android.R.attr.targetSdkVersion;

/**
 * ClassName:ParameterFactory
 * Description TODO 动态权限处理
 *      参考：http://blog.csdn.net/u011200604/article/details/52874599
 * created by BAI
 * Data 2016/12/20
 */
public class PermissionUtils {

    private static final int PERMISSION_REQUEST_CODE = 100;

    /**
     * 请求权限
     * @param mActivity
     * @param permissions
     */
    public void requestRunPermission(Activity mActivity, String[] permissions, PermissionListener mListener){
        List permissionLists = new ArrayList<>();
        for(String permission : permissions){
            if( selfPermissionGranted(mActivity,permission)){
                permissionLists.add(permission);
            }
        }
        if(!permissionLists.isEmpty()){
            ActivityCompat.requestPermissions(mActivity, permissionLists.toArray(new String[permissionLists.size()]), PERMISSION_REQUEST_CODE);
        }else{
            //表示全都授权了
            mListener.onGranted();
        }
    }

    /**
     * 判断权限是否已授权
     * @param permission
     * @return
     */
    public boolean selfPermissionGranted(Activity mContext,String permission) {
        // For Android < Android M, self permissions are always granted.
        boolean result = true;
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            if (targetSdkVersion >= Build.VERSION_CODES.M) {
                // targetSdkVersion >= Android M, we can
                // use Context#checkSelfPermission
                result = ContextCompat.checkSelfPermission(mContext, permission) != PackageManager.PERMISSION_GRANTED;
            } else {
                // targetSdkVersion < Android M, we have to use PermissionChecker
                result = PermissionChecker.checkSelfPermission(mContext, permission) == PermissionChecker.PERMISSION_GRANTED;
            }
        }
        return result;
    }

    /**
     * 请求权限结果，baseActivity调用
     * @param requestCode
     * @param permissions
     * @param grantResults
     * @param mListener
     */
    public void requestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults,PermissionListener mListener) {
        switch (requestCode){
            case PERMISSION_REQUEST_CODE:
                if(grantResults.length > 0){
                    //存放没授权的权限
                    List deniedPermissions = new ArrayList<>();
                    for(int i = 0; i < grantResults.length; i++){
                        int grantResult = grantResults[i];
                        String permission = permissions[i];
                        if(grantResult != PackageManager.PERMISSION_GRANTED){
                            deniedPermissions.add(permission);
                        }
                    }
                    if(deniedPermissions.isEmpty()){
                        //说明都授权了
                        mListener.onGranted();
                    }else{
                        mListener.onDenied(deniedPermissions);
                    }
                }
                break;
            default:
                break;
        }
    }

    /**
     * 打开设置权限页面
     * @param activity
     * @param message
     */
    public static void openSettingActivity(final Activity activity, String message) {
        showMessageOKCancel(activity, message, new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                Intent intent = new Intent();
                intent.setAction(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
                Uri uri = Uri.fromParts("package", activity.getPackageName(), null);
                intent.setData(uri);
                activity.startActivity(intent);
            }
        }, new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int which) {
                ToastUtils.showToast(activity,"请设置必要的权限！");
            }
        });
    }

    /**
     * 显示弹框
     * @param context
     * @param message
     * @param settingListener
     * @param cancelListener
     */
    private static void showMessageOKCancel(final Activity context, String message,
                                            DialogInterface.OnClickListener settingListener,
                                            DialogInterface.OnClickListener cancelListener) {
        String permissionMessage = "当前应用缺少必要权限("+message+")\n" +
                "\n 请点击“设置”-“权限”-打开所需权限。\n"+"" +
                "\n 最后点击两次后退按钮，即可返回";
        new AlertDialog.Builder(context)
                .setTitle("提示")
                .setMessage(permissionMessage)
                .setPositiveButton("设置", settingListener)
                .setNegativeButton("取消", cancelListener)
                .create()
                .show();

    }
}

权限申请依附于Activity，BaseAcivity和BaseFragment调用：

/**
 * ClassName: BaseActivity
 * Description: 基础信息
 * author 漠天
 * date 2017/6/11
 */
public abstract class BaseActivity extends AppCompatActivity{
    protected Activity mContext = this;
    /**
     * 权限监听
     */
    private PermissionListener mListener;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }

    /**
     * 请求权限（在onResume中写会重复调用弹窗，知道允许权限）
     * @param mActivity
     * @param permissions
     */
    public void requestRunPermission(Activity mActivity, String[] permissions, PermissionListener mListener){
        this.mListener = mListener;
        new PermissionUtils().requestRunPermission(mActivity,permissions,mListener);
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        new PermissionUtils().requestPermissionsResult(requestCode, permissions, grantResults,mListener);
    }

}

/**
 * ClassName:BaseFragment
 * Description BaseFragment
 * created by BAI
 * Data 2017/6/11
 */
public abstract class BaseFragment extends Fragment{
    /**
     * Activity mContext
     */
    protected Activity mContext;

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        mContext = getActivity();
        return null;
    }

    /**
     * 请求权限
     * @param mActivity
     * @param permissions
     */
    public void requestRunPermission(Activity mActivity, String[] permissions, PermissionListener mListener){
        ((BaseActivity)mActivity).requestRunPermission(mActivity,permissions,mListener);
    }

}

然后，MainActivity调用申请：

public class MainActivity extends BaseActivity {

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

        Button button = (Button)findViewById(R.id.request);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                permission();
            }
        });
        Button openPermissionActivity = (Button)findViewById(R.id.openPermissionActivity);
        openPermissionActivity.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent intent = new Intent();
                intent.setAction(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
                Uri uri = Uri.fromParts("package", mContext.getPackageName(), null);
                intent.setData(uri);
                mContext.startActivity(intent);
            }
        });

        permission();
    }

    /**
     * 判断权限
     */
    private void permission(){
        requestRunPermission(mContext,new String[]{Manifest.permission.CAMERA, Manifest.permission.CALL_PHONE,Manifest.permission.READ_EXTERNAL_STORAGE},new PermissionListener() {
            @Override
            public void onGranted() {
                //表示所有权限都授权了
                ToastUtils.showToast(mContext,"已经全部接受，可以处理其他事儿了^_^");
            }

            @Override
            public void onDenied(List deniedPermission) {
                PermissionUtils.openSettingActivity(mContext,ToastUtils.getPermissionText(mContext,deniedPermission));
            }
        });
    }

}

效果图：

demo代码结构：

demo PermissionRequest