android - 从图库返回的图像不适合窗口大小

Question

我正在使用以下类从相机和图库中获取图像并执行裁剪，，

package net.londatiga.android;

import java.io.File;

import java.util.ArrayList;
import java.util.List;
import android.app.Activity;
import android.app.AlertDialog;

import android.content.ActivityNotFoundException;
import android.content.ComponentName;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.ResolveInfo;

import android.graphics.Bitmap;
import android.provider.MediaStore;
import android.view.View;

import android.net.Uri;

import android.os.Bundle;
import android.os.Environment;

import android.widget.Button;
import android.widget.ArrayAdapter;
import android.widget.Toast;
import android.widget.ImageView;

public class MainActivity extends Activity {
    private Uri mImageCaptureUri;
    private ImageView mImageView;

    private static final int PICK_FROM_CAMERA = 1;
    private static final int CROP_FROM_CAMERA = 2;
    private static final int PICK_FROM_FILE = 3;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);

        final String [] items           = new String [] {"Take from camera", "Select from gallery"};                
        ArrayAdapter<String> adapter    = new ArrayAdapter<String> (this, android.R.layout.select_dialog_item,items);
        AlertDialog.Builder builder     = new AlertDialog.Builder(this);

        builder.setTitle("Select Image");
        builder.setAdapter( adapter, new DialogInterface.OnClickListener() {
            public void onClick( DialogInterface dialog, int item ) { //pick from camera
                if (item == 0) {
                    Intent intent    = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);

                    mImageCaptureUri = Uri.fromFile(new File(Environment.getExternalStorageDirectory(),
                                       "tmp_avatar_" + String.valueOf(System.currentTimeMillis()) + ".jpg"));

                    intent.putExtra(android.provider.MediaStore.EXTRA_OUTPUT, mImageCaptureUri);

                    try {
                        intent.putExtra("return-data", true);

                        startActivityForResult(intent, PICK_FROM_CAMERA);
                    } catch (ActivityNotFoundException e) {
                        e.printStackTrace();
                    }
                } else { //pick from file
                    Intent intent = new Intent();

                    intent.setType("image/*");
                    intent.setAction(Intent.ACTION_GET_CONTENT);

                    startActivityForResult(Intent.createChooser(intent, "Complete action using"), PICK_FROM_FILE);
                }
            }
        } );

        final AlertDialog dialog = builder.create();

        Button button   = (Button) findViewById(R.id.btn_crop);
        mImageView      = (ImageView) findViewById(R.id.iv_photo);

        button.setOnClickListener(new View.OnClickListener() {  
            @Override
            public void onClick(View v) {
                dialog.show();
            }
        });
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (resultCode != RESULT_OK) return;

        switch (requestCode) {
            case PICK_FROM_CAMERA:
                doCrop();

                break;

            case PICK_FROM_FILE: 
                mImageCaptureUri = data.getData();

                doCrop();

                break;          

            case CROP_FROM_CAMERA:          
                Bundle extras = data.getExtras();

                if (extras != null) {               
                    Bitmap photo = extras.getParcelable("data");

                    GraphicsUtil graphicUtil = new GraphicsUtil();
                    //picView.setImageBitmap(graphicUtil.getRoundedShape(thePic));

                    mImageView.setImageBitmap(graphicUtil.getCircleBitmap(photo, 16));
                }

                File f = new File(mImageCaptureUri.getPath());            

                if (f.exists()) f.delete();

                break;

        }
    }

    private void doCrop() {
        final ArrayList<CropOption> cropOptions = new ArrayList<CropOption>();

        Intent intent = new Intent("com.android.camera.action.CROP");
        intent.setType("image/*");

        List<ResolveInfo> list = getPackageManager().queryIntentActivities( intent, 0 );

        int size = list.size();

        if (size == 0) {            
            Toast.makeText(this, "Can not find image crop app", Toast.LENGTH_SHORT).show();

            return;
        } else {
            intent.setData(mImageCaptureUri);

            intent.putExtra("outputX", 200);
            intent.putExtra("outputY", 200);
            intent.putExtra("aspectX", 1);
            intent.putExtra("aspectY", 1);
            intent.putExtra("scale", true);
            intent.putExtra("return-data", true);

            if (size == 1) {
                Intent i        = new Intent(intent);
                ResolveInfo res = list.get(0);

                i.setComponent( new ComponentName(res.activityInfo.packageName, res.activityInfo.name));

                startActivityForResult(i, CROP_FROM_CAMERA);
            } else {
                for (ResolveInfo res : list) {
                    final CropOption co = new CropOption();

                    co.title    = getPackageManager().getApplicationLabel(res.activityInfo.applicationInfo);
                    co.icon     = getPackageManager().getApplicationIcon(res.activityInfo.applicationInfo);
                    co.appIntent= new Intent(intent);

                    co.appIntent.setComponent( new ComponentName(res.activityInfo.packageName, res.activityInfo.name));

                    cropOptions.add(co);
                }

                CropOptionAdapter adapter = new CropOptionAdapter(getApplicationContext(), cropOptions);

                AlertDialog.Builder builder = new AlertDialog.Builder(this);
                builder.setTitle("Choose Crop App");
                builder.setAdapter( adapter, new DialogInterface.OnClickListener() {
                    public void onClick( DialogInterface dialog, int item ) {
                        startActivityForResult( cropOptions.get(item).appIntent, CROP_FROM_CAMERA);
                    }
                });

                builder.setOnCancelListener( new DialogInterface.OnCancelListener() {
                    @Override
                    public void onCancel( DialogInterface dialog ) {

                        if (mImageCaptureUri != null ) {
                            getContentResolver().delete(mImageCaptureUri, null, null );
                            mImageCaptureUri = null;
                        }
                    }
                } );

                AlertDialog alert = builder.create();

                alert.show();
            }
        }
    }
} 

问题是，在使用相机时，图像适合整个窗口大小并且我完美地裁剪它但是当我使用画廊选择图像时它只返回缩略图大小的图像，我希望返回的图像适合窗口大小并执行裁剪，，，帮我

Answer 1

在您的图像视图中使用以下属性

android:scaleType="fitXY"