PermissionsUtil类
import android.app.Activity; import android.content.pm.PackageManager; import android.support.annotation.NonNull; import android.support.v4.app.ActivityCompat; import android.support.v4.content.ContextCompat; import android.util.Log; import android.widget.Toast; import java.util.ArrayList; import java.util.List; public class PermissionsUtil { private Activity context; private int requestId; private List<String> permissionList; public PermissionsUtil(Activity context){ this.context = context; permissionList = new ArrayList<>(); } /** * 查询当前权限是否禁止 * */ public void shouldShowPermissionRationale(int requestId,String ... permission){ this.requestId = requestId; for (int i = 0; i < permission.length; i++) { boolean checkPermisssion = ContextCompat.checkSelfPermission(context, permission[i])!= PackageManager.PERMISSION_GRANTED; //表示权限被拒绝,说明此权限作用 if(checkPermisssion){ permissionList.add(permission [i]); } } if (null != permissionList && !permissionList.isEmpty()){ //permissionList集合里面有未授权的权限 String[] permissions = permissionList.toArray(new String[permissionList.size()]); requestPermissions(context,permissions); } //权限已经授权 else { Toast.makeText(context,"权限已经授权",Toast.LENGTH_LONG).show(); } } //查询当前申请的所有权限是否都被允许 public void shouldShowPermissionRationale(String ... permission){ permissionList.clear(); for (int i = 0; i <permission.length ; i++) { boolean checkPermisssion = ContextCompat.checkSelfPermission(context, permission[i])!= PackageManager.PERMISSION_GRANTED; //表示权限被拒绝,说明此权限作用 if (checkPermisssion){ permissionList.add(permission [i]); } } if (null != permissionList && !permissionList.isEmpty()){ Toast.makeText(context,"当前权限未完全授权",Toast.LENGTH_LONG).show(); } else { Toast.makeText(context,"权限已授权",Toast.LENGTH_LONG).show(); } } //权限申请 public void requestPermissions(Activity activity,String[] permission){ ActivityCompat.requestPermissions(activity, permission, requestId); } //权限回调 //Activity需实现OnRequestPermissionsResultCallback通过 PermissionsUtil.onRequestPermissionsResult引用回调 public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions,@NonNull int[] grantResults){ if (requestCode == requestId){ for (int i = 0; i < grantResults.length; i++) { if (grantResults [i] != PackageManager.PERMISSION_GRANTED){ //判断是否勾选禁止后不再询问 boolean showRequestPermission = ActivityCompat.shouldShowRequestPermissionRationale(context, permissions[i]); if (showRequestPermission) { //权限重新申请 Toast.makeText(context,"权限被禁止了",Toast.LENGTH_LONG).show(); //requestPermissions(context,permissions); break; } else { //权限被禁止,且不再询问 Toast.makeText(context,"权限被禁止,且不再提示",Toast.LENGTH_LONG).show(); break; } } else { //当某个权限或者所有权限被允许 shouldShowPermissionRationale(permissions); break; } } } } }
在Activity使用
import android.Manifest; import android.support.annotation.NonNull; import android.support.v4.app.ActivityCompat; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import com.example.binder.permissionstest.util.PermissionsUtil; public class MainActivity extends AppCompatActivity implements View.OnClickListener,ActivityCompat.OnRequestPermissionsResultCallback { private PermissionsUtil permissionsUtil; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); permissionsUtil = new PermissionsUtil(this); findViewById(R.id.permission).setOnClickListener(this); } @Override public void onClick(View v) { String[] permissions = new String[]{Manifest.permission.CAMERA,Manifest.permission.CALL_PHONE, Manifest.permission.WRITE_EXTERNAL_STORAGE}; switch (v.getId()){ case R.id.permission: permissionsUtil.shouldShowPermissionRationale(111,permissions); break; } } @Override public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) { permissionsUtil.onRequestPermissionsResult(requestCode,permissions,grantResults); } }
清单文件添加权限
<uses-permission android:name="android.permission.CAMERA"></uses-permission> <uses-permission android:name="android.permission.CALL_PHONE"></uses-permission> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>
结束