Question

我需要将新的权限添加到旧项目中，这仍然需要坚持使用ant构建。以下是以前的配置：

project.properties：
target=android-23

的AndroidManifest.xml：
<uses-sdk android:minSdkVersion="13" />

我将AndroidManifest.xml更改为
<uses-sdk android:minSdkVersion="8" android:targetSdkVersion="23" />
但发现在我的Android 6.0手机上它仍然警告我，我的应用程序与最新的Android权限要求不兼容。而且它的行为就像它真正针对23之前的那样。

那么有什么解决方案吗？

Answer 1

我只是共享代码来添加权限检查，这是自Marshnmallow以来已经强制执行的程序。例如，我检查是否允许访问摄像头。

private void launchCamera() {

    if (ContextCompat.checkSelfPermission(this,
            Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
        if (ActivityCompat.shouldShowRequestPermissionRationale(MyActivity.this,
                Manifest.permission.CAMERA)) {
            // Showing explanation to user to require permission

          // <Build a dialog here. Following shows how to handle dialog clicks>

            dialog.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    // Yes, user wants to give permission
                    dialog.dismiss();
                    ActivityCompat.requestPermissions(MyActivity.this,
                            new String[] {Manifest.permission.CAMERA},
                            Constants.PERMISSION_CAMERA);
                }
            });
            alog.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    // No, user does not want to give permission now
                    dialog.dismiss();
                }
            });

        } else {
            // No explanation needed, requesting for permission now.
            ActivityCompat.requestPermissions(this,
                    new String[] {Manifest.permission.CAMERA},
                    Constants.PERMISSION_CAMERA);
        }

    } else {
        // Permission to get location has been granted already.
        try {
            Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
            startActivityForResult(intent, Constants.CAMERA_CAPTURE_REQUEST);
        } catch (ActivityNotFoundException e) {
            e.printStackTrace();
            Log.e(TAG, "Camera is not found!");
        }

    }
}

接下来，我们有一个方法可以根据用户提供给系统对话框的响应来实现（在我们的对话框之后弹出）。

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

    if (requestCode == Constants.PERMISSION_CAMERA ){
        if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
            launchCamera();

        } else if (grantResults[0] == PackageManager.PERMISSION_DENIED){
            if (ActivityCompat.shouldShowRequestPermissionRationale(this,
                    Manifest.permission.CAMERA)) {

                /*Here we have to show a dialog/ something else to show user why app requires permission. This is a good practice.*/

                // Handle dialog clicks again
               // Build a dialog here
                btnPositiveOfDialog.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View view) {
                        // Yes, I want to give permission now after reading detailed message
                        dialog.dismiss();
                        ActivityCompat.requestPermissions(UserInfoActivity.this,
                                new String[] {Manifest.permission.CAMERA},
                                Constants.PERMISSION_CAMERA);
                    }
                });
                btnNegativeOfDialog.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View view) {
                        // No, I still don't understand detailed message and want give permission away
                        dialog.dismiss();
                    }
                });

            } else {
                // User checked 'Never ask again'
                // Build a dialog here
                btnPositiveOfDialog.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View view) {
                        // Yes, go to app settings and manually enable settings
                        dialog.dismiss();
                        final Intent i = new Intent();
                        i.setAction(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
                        i.addCategory(Intent.CATEGORY_DEFAULT);
                        i.setData(Uri.parse("package:" + UserInfoActivity.this.getPackageName()));
                        i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                        i.addFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
                        i.addFlags(Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);
                        MyActivity.this.startActivity(i);
                    }
                });
                btnNegativeOfDialog.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View view) {
                        // No, I don't want to go to user settings and give permission now.
                        dialog.dismiss();
                    }
                });
                dialog.show();

            }

        }
    }
}

Android 6.0权限和目标

1 个答案: