告别onActivityResult 工具类DEMO

package scoto.com.resultforactivity.resutactivity; import android.app.Fragment; import android.content.Context; import android.content.Intent; import android.os.Build; import android.support.annotation.NonNull; import android.widget.Toast; import java.util.List; import static android.app.Activity.RESULT_OK; /** * @author 李泽锋 * @Description: * @date 2018年05月11日-11时17分 */ public class AppFragment extends Fragment { private EyRequest request; //与activity绑定事件 @Override public void onAttach(Context context) { super.onAttach(context); //先检查权限 if (request.getPermissions() == null) { //如果没有权限检查则直接启动activity startActivity(request.getIntent(), request.getRequestCode()); } else { //如果有权限检查首先检查权限，直到回调成功则再启动activity RequestPermissions(request.getPermissions(), new ActivityResult.PermissionsBack() { @Override public void PermissionsResult() { startActivity(request.getIntent(), request.getRequestCode()); } }); } } public void startActivity(Intent intent, int requestCode){ if(intent!=null){ startActivityForResult(intent,requestCode); }else { if(isAdded()){ getActivity().getFragmentManager().beginTransaction().detach(this).commit(); //解除与activity的绑定 request.clear(); //清空数据 } } } public void setRequest(EyRequest request) { this.request = request; } @Override public void onActivityResult(int requestCode, int resultCode, Intent data) { if(RESULT_OK==resultCode){ ActivityResult.OnActivityBack onActivityBack = (ActivityResult.OnActivityBack) request.getValue(requestCode); onActivityBack.OnActivityResult(data); } if(isAdded()){ getActivity().getFragmentManager().beginTransaction().detach(this).commitAllowingStateLoss(); //解除与activity的绑定 request.clear(); //清空数据 } } @Override public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) { super.onRequestPermissionsResult(requestCode, permissions, grantResults); if (request.getValue(requestCode) != null) { ActivityResult.PermissionsBack permissionsBack = (ActivityResult.PermissionsBack) request.getValue(requestCode); if (PermissionUtils.checkGrantResults(grantResults)) { permissionsBack.PermissionsResult(); //权限申请成功 } else { Toast.makeText(getActivity(), "已拒绝权限！", Toast.LENGTH_SHORT).show(); if(isAdded()){ getActivity().getFragmentManager().beginTransaction().detach(this).commitAllowingStateLoss(); //解除与activity的绑定 request.clear(); //清空数据 } } } } public void RequestPermissions(List<String> strings, ActivityResult.PermissionsBack permissionsBack) { String[] permissions = strings.toArray(new String[strings.size()]); if(request.getValue(request.getPermissionCode())!=null){ permissionsBack= (ActivityResult.PermissionsBack) request.getValue(request.getPermissionCode()); } //判断是否开启了权限 if (PermissionUtils.checkSelfPermission(getActivity(), permissions)) { //权限都打开了。。 permissionsBack.PermissionsResult(); if(request.getIntent()==null){ if(isAdded()){ getActivity().getFragmentManager().beginTransaction().detach(this).commitAllowingStateLoss(); //解除与activity的绑定 request.clear(); //清空数据 } } } else { //申请权限 request.put(request.getPermissionCode(),permissionsBack); if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) { requestPermissions(permissions, request.getPermissionCode()); } } } }