Android权限请求代码问题

时间:2016-05-16 11:57:45

标签: android android-permissions phone-call

如何申请许可?我尝试了文档,但是常量的int请求代码MY_PERMISSIONS_REQUEST_CALL_PHONE似乎只是工作,还有其他任何要记住的向后兼容性吗?

ActivityCompat.requestPermissions(getApplicationContext(),
                            new String[]{Manifest.permission.READ_CONTACTS},
                            MY_PERMISSIONS_REQUEST_CALL_PHONE);

如何声明MY_PERMISSIONS_REQUEST_CALL_PHONE常量int?

4 个答案:

答案 0 :(得分:6)

public void makeCall(String s)
{
    Intent intent = new Intent(Intent.ACTION_CALL);
    intent.setData(Uri.parse("tel:" + s));
    if (ActivityCompat.checkSelfPermission(this, Manifest.permission.CALL_PHONE) != PackageManager.PERMISSION_GRANTED){

        requestForCallPermission();

    } else {
        startActivity(intent);

    }
}
public void requestForCallPermission()
{

    if (ActivityCompat.shouldShowRequestPermissionRationale(this,Manifest.permission.CALL_PHONE))
    {
    }
    else {

        ActivityCompat.requestPermissions(this,new String[]{Manifest.permission.CALL_PHONE},PERMISSION_REQUEST_CODE);
    }
}

@Override
public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults)
{
    switch (requestCode) {
        case PERMISSION_REQUEST_CODE:
            if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                makeCall("100");
            }
            break;
    }
}

//现在调用方法makeCall(" your_desire_phone_numder"); MakeCall函数(" 100&#34); Link for more details

答案 1 :(得分:4)

对于较低版本,您只需在清单中声明权限,  但对于marshmellow,您需要在代码中提供它,以便执行代码。

在这里,您想要拨打电话。因此,在编写的代码块中插入/包含下面提供的代码以进行调用。

   public void makeCall()
   {
       Intent intent = new Intent(Intent.ACTION_CALL);
       intent.setData(Uri.parse("tel:" + "123456"));
       int result = ContextCompat.checkSelfPermission(context, Manifest.permission.CALL_PHONE);
       if (result == PackageManager.PERMISSION_GRANTED){

           startActivity(intent);

       } else {

           requestForCallPermission(); 
       }
  }

  private void requestPermission()
  {

       if (ActivityCompat.shouldShowRequestPermissionRationale(activity,Manifest.permission.CALL_PHONE))
       {
       } 
       else {

           ActivityCompat.requestPermissions(activity,new String[]{Manifest.permission.ACCESS_FINE_LOCATION},PERMISSION_REQUEST_CODE);
       }
  }

  @Override
  public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) 
  {
    switch (requestCode) {
        case PERMISSION_REQUEST_CODE:
            if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) { 
                makeCall(); 
            } 
            break;
      }
  }

答案 2 :(得分:0)

            if (ActivityCompat.checkSelfPermission(this, Manifest.permission.CALL_PHONE) != PackageManager.PERMISSION_GRANTED) {
                // TODO: Consider calling
                //    ActivityCompat#requestPermissions
                // here to request the missing permissions, and then overriding
                //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
                //                                          int[] grantResults)
                // to handle the case where the user grants the permission. See the documentation
                // for ActivityCompat#requestPermissions for more details.
                return;
            }
Intent intent = new Intent(Intent.ACTION_CALL);
            intent.setData(Uri.parse("tel:" + "123456"));
            startActivity(intent);

尝试这样做。

答案 3 :(得分:0)

尝试下面的代码希望它能帮到你。 首先,在允许拨打号码后,这将要求您提供权限弹出窗口。

if (ContextCompat.checkSelfPermission(HomePanelActivity.this, Manifest.permission.CALL_PHONE) != PackageManager.PERMISSION_GRANTED) {
            if (ActivityCompat.shouldShowRequestPermissionRationale(HomePanelActivity.this,
                    Manifest.permission.CALL_PHONE)) {
                ActivityCompat.requestPermissions(HomePanelActivity.this, new String[]{Manifest.permission.CALL_PHONE}, REQUEST_PERMISSION);
            }
        } else {
            Intent callIntent = new Intent(Intent.ACTION_CALL);
            callIntent.setData(Uri.parse("tel:" + phoneNumber));
            if (ActivityCompat.checkSelfPermission(HomePanelActivity.this, Manifest.permission.CALL_PHONE) == PackageManager.PERMISSION_GRANTED) {
                startActivity(callIntent);
            }
        }

@Override
    public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
        switch (requestCode) {
            case 10:
                if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                    Intent callIntent = new Intent(Intent.ACTION_CALL);
                    callIntent.setData(Uri.parse("tel:" + phoneNumberToCall));
                    if (ActivityCompat.checkSelfPermission(HomePanelActivity.this, Manifest.permission.CALL_PHONE) == PackageManager.PERMISSION_GRANTED) {
                        startActivity(callIntent);
                    }
                } else {
                    Snackbar.make(drawerLayout, "You Deny permission", Snackbar.LENGTH_SHORT).show();
                return;
            }
        }
    };