Question

欢迎大家，我的应用程序需要从库中检索任何图片..我在谷歌搜索然后我发现了一个简单的代码如下所示+我的代码，我在我的应用程序中使用它可以工作（当我按下浏览按钮时它会进入图库）但我不知道它是否检索图片因为你知道模拟器没有任何图像我试图添加图片模拟器（通过使用DDMS），但我不能，所以我不知道这段代码中的这些函数（onActivityResult（）和String getPath（））是否检索所选图片？

Q1：如果是，请告诉我如何将其添加到Case对象（它是我项目中的一个类）？

public class MyCase {


    //private ?? pic;
    private String name;
    private String gender ;
    private int age;
    private String clothes;
    private String MoreInfo;
    private String time;
    private String location;
    private  int ID;
}

Q2：案例图片的数据类型应该使用什么？

非常感谢，

public class CreateNewForm extends Activity implements OnItemSelectedListener  {


        Button Browse, Cancelb, Nextb;
        ImageView  CasePic;
        Spinner CaseDurationH, CaseDurationM;
        TextView tesst;
        RadioGroup GenderSelection;
        EditText CaseName, CaseClothes, CaseMoreInfo, CaseAge;

        //For Browsering Picture 
        private static final int SELECT_PICTURE = 1;
        private String selectedImagePath;

        @Override
        protected void onCreate(Bundle savedInstanceState) 
        {

            // TODO Auto-generated method stub
            super.onCreate(savedInstanceState);
            setContentView(R.layout.create_new_form);

            //To Call initializer Function 
            initializer();

            // 1-For Uploading Picture
            Browse.setOnClickListener(new View.OnClickListener() {

                public void onClick(View v) {
                    // TODO Auto-generated method stub
                     // in onCreate or any event where your want the user to
                    // select a file
                    Intent intent = new Intent();
                    intent.setType("image/*");
                    intent.setAction(Intent.ACTION_GET_CONTENT);
                    startActivityForResult(Intent.createChooser(intent,
                            "Select Picture"), SELECT_PICTURE);
                }
            });


    }

    // To initialize the variables 
    private void initializer() {
        // TODO Auto-generated method stub
        //This information will be filled by a plaintiff
                //CasePic = (ImageView) findViewById(R.id.imageView1);
                CaseName= (EditText) findViewById(R.id.caseNm);
                GenderSelection= (RadioGroup) findViewById(R.id.radioGroup1);
                CaseAge= (EditText) findViewById(R.id.caseaage);
                tesst= (TextView) findViewById(R.id.textView8);
                CaseDurationH= (Spinner) findViewById(R.id.Shr);
                CaseDurationM= (Spinner) findViewById(R.id.Smin);
                CaseClothes= (EditText) findViewById(R.id.caseClothes);
                CaseMoreInfo= (EditText) findViewById(R.id.caseMrInfo);
                CasePic = (ImageView) findViewById(R.id.casepic);
                Browse = (Button) findViewById(R.id.browseCasePic);
                Nextb= (Button)findViewById(R.id.next1);
                Cancelb = (Button) findViewById(R.id.cancel1);
    }

        //For Uploading Picture
        public void onActivityResult(int requestCode, int resultCode, Intent data) {
            if (resultCode == RESULT_OK) {
                if (requestCode == SELECT_PICTURE) {
                    Uri selectedImageUri = data.getData();
                    selectedImagePath = getPath(selectedImageUri);
                }
            }
        }

        //For Uploading Picture
        public String getPath(Uri uri) {
            String[] projection = { MediaStore.Images.Media.DATA };
            Cursor cursor = managedQuery(uri, projection, null, null, null);
            int column_index = cursor
                    .getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
            cursor.moveToFirst();
            return cursor.getString(column_index);
        }

Answer 1

您可以使用DDMS FileExplorer或“adb push”将图像推送到SD卡上。完成后，您需要运行Media Scanner。 Media Scanner将扫描SDCard并将找到的图像添加到MediaStore。您可以以编程方式触发Media Scanner，也可以使用模拟器上的内置Dev Tools应用程序。

以编程方式触发Media Scanner的代码：

sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED, Uri.parse("file://" + Environment.getExternalStorageDirectory())));

从Gallery android应用程序上传图像

1 个答案: