Android-允許使用相機並寫入外部存儲

Question

我正在嘗試尋求使用相機和寫入外部存儲的許可。 我的主要活動是：

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





        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if(Build.VERSION.SDK_INT>=Build.VERSION_CODES.M)
                {
                    if(checkSelfPermission(Manifest.permission.CAMERA)!= PackageManager.PERMISSION_GRANTED)
                    {
                        ActivityCompat.requestPermissions(MainActivity.this,new String[]{android.Manifest.permission.CAMERA});
                    }
                }

                if(ActivityCompat.checkSelfPermission(getApplicationContext(),
                        Manifest.permission.WRITE_EXTERNAL_STORAGE)!= PackageManager.PERMISSION_GRANTED)
                {
                    ActivityCompat.requestPermissions(MainActivity.this,new String[]{android.Manifest.permission.WRITE_EXTERNAL_STORAGE},REQUEST_PERM_WRITE_STORAGE);

            }
                else
                {
                    takePhoto(); // calls this method
                }
            }
        });
    }

我在Manifest.xml中包含了它：

<uses-permission android:name="android.permission.CAMERA"/>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

我收到此錯誤：

 cannot find symbol method requestPermissions(MainActivity,String[])
cannot find symbol method checkSelfPermission(Context,String)

我做錯了什么。 謝謝

Answer 1

對於請求相機部分，請嘗試此

final int RequestCameraPermissionID = 1001;

ActivityCompat.requestPermissions(this, new String[]{android.Manifest.permission.CAMERA},RequestCameraPermissionID);