Question

我正在尝试选择存储在当前位于Drawable文件夹中的我的应用内的图片，因为如果我 错误点我还不知道该去哪里我在哪里。

目标：由于我不想将相应的用户的整个图片发送到服务器，而是存储一些图片（Zodiac Signs）让我们说图书馆图像。如果我要从图库中加载图片，如果打开此可绘制窗口以选择图片，当我点击上传图片时会打开图库窗口。

这就是我为画廊做的事情：

prof.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent i = new Intent(
                        Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI );
                startActivityForResult(i, RESULT_LOAD_IMAGE);
            }
        });

protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);


        if (requestCode == RESULT_LOAD_IMAGE && resultCode == RESULT_OK && null != data) {
            Uri selectedImage = data.getData();
            String[] filePathColumn = { MediaStore.Images.Media.DATA };

            Cursor cursor = getContentResolver().query(selectedImage,
                    filePathColumn, null, null, null);
            cursor.moveToFirst();

            int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
            picturePath = cursor.getString(columnIndex);
            cursor.close();

            Glide.with(this).load(picturePath)
                    .crossFade()
                    .thumbnail(0.5f)
                    .bitmapTransform(new CircleTransform(this))
                    .diskCacheStrategy(DiskCacheStrategy.ALL)
                    .into(prof);


        }
    }

我从中做到了什么：我只能发送将在用户屏幕上设置的 图片名称 如果他查看其他 用户个人资料 ，因为这些图片都在所有应用中。

Answer 1

不幸的是，你无法得到一个drawables列表。

但是你可以构建静态列表int []或其他一些结构

这里有两个例子：

SimpleFragment仅使用自定义适配器拍摄图像。您需要构建imagesOnly

public static class SimpleFragment extends DialogFragment {
    final static int[] imagesOnly = new int[]{R.drawable.ic_android, R.drawable.ic_apps, R.drawable.ic_laptop_mac, R.drawable.ic_mood};

    @NonNull
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        final BaseAdapter adapter = new BaseAdapter() {
            @Override
            public int getCount() {
                return imagesOnly.length;
            }

            @Override
            public Object getItem(int i) {
                return imagesOnly[i];
            }

            @Override
            public long getItemId(int i) {
                return imagesOnly[i];
            }

            @Override
            public View getView(int i, View view, ViewGroup viewGroup) {
                if (view == null)
                    view = new ImageView(getContext());
                ((ImageView) view).setImageResource((int) getItem(i));
                return view;
            }
        };
        return new AlertDialog.Builder(getContext()).setAdapter(adapter,
                new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialogInterface, int i) {
                        ((MainActivity) getContext()).OnSelected(SimpleFragment.this.getClass(), (int) adapter.getItem(i));
                    }
                }).setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                dialogInterface.cancel();
            }
        }).setCancelable(true).setTitle("Pick image(simple)").create();
    }
}

WithNamesFragment使用SimpleAdapter显示带有名称的图片。您需要构建imagesWithNames

public static class WithNamesFragment extends DialogFragment {
    final static ArrayList<HashMap<String, ?>> imagesWithNames = new ArrayList<>();

    static {
        HashMap<String, Object> row = new HashMap<>();
        row.put("imageID", R.drawable.ic_android);
        row.put("name", "Android");
        imagesWithNames.add(row);
        row = new HashMap<>();
        row.put("imageID", R.drawable.ic_apps);
        row.put("name", "Apps");
        imagesWithNames.add(row);
        row = new HashMap<>();
        row.put("imageID", R.drawable.ic_laptop_mac);
        row.put("name", "Laptop Mac");
        imagesWithNames.add(row);
        row = new HashMap<>();
        row.put("imageID", R.drawable.ic_mood);
        row.put("name", "Mud black");
        imagesWithNames.add(row);
    }

    @NonNull
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        final SimpleAdapter adapter = new SimpleAdapter(getContext(), imagesWithNames, R.layout.simple_row_with_image,
                new String[]{"name", "imageID"}, new int[]{R.id.text1, R.id.image1});
        return new AlertDialog.Builder(getContext()).setAdapter(adapter,
                new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialogInterface, int i) {
                        ((MainActivity) getContext()).OnSelected(WithNamesFragment.this.getClass(), (int) ((HashMap<String, Object>) adapter.getItem(i)).get("imageID"));
                    }
                }).setCancelable(true).setTitle("Pick image(with names)").create();
    }
}

用法 - 重要的是回调public void OnSelected(Class<?> clazz, int i)当然clazz仅用于记录目的，因此您可以删除它...也没有取消回调 - 这取决于您

import android.support.v4.app.DialogFragment;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;

public class MainActivity extends AppCompatActivity {


    private static final String PICKER_TAG = "PICKER_TAG";
    static boolean mShowSimple = false;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        final Button button = new Button(this);
        button.setText("Click me!");
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                if (mShowSimple)
                    showSimple();
                else
                    show();
                mShowSimple = !mShowSimple;
            }
        });
        setContentView(button);
    }

    ;

    void show() {
        new WithNamesFragment().show(getSupportFragmentManager(), PICKER_TAG);
    }

    void showSimple() {
        new SimpleFragment().show(getSupportFragmentManager(), PICKER_TAG);
    }

    public void OnSelected(Class<?> clazz, int i) {
        Toast toast = Toast.makeText(this, "Class \"" + clazz.getSimpleName() + "\" returns this image with id: " + getResources().getResourceName(i), Toast.LENGTH_SHORT);
        final TextView toastView = (TextView) toast.getView().findViewById(android.R.id.message);
        toastView.setCompoundDrawablesWithIntrinsicBounds(0, i, 0, 0);
        toast.show();
    }
}

simple_row_with_image.xml（只有名称版本需要）

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <ImageView
        android:id="@+id/image1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />

    <TextView
        android:id="@+id/text1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerVertical="true"
        android:layout_toEndOf="@id/image1"
        android:layout_toRightOf="@id/image1" />
</RelativeLayout>

如何从drawable中选择图像？

1 个答案: