Question

我已经实施了图片上传，但确实上传了图片，但在活动关闭之后，它没有在偏好设置中挑选已保存的图片（ picturepath ）

我已使用 Glide 上传图片，因此请尝试在该上下文中说明并使用 圈子转换 作为框架上传我的图片图像进入这个框架。

我的活动类：

public class MainActivity extends AppCompatActivity implements FragmentDrawer.FragmentDrawerListener {

    private static String TAG = MainActivity.class.getSimpleName();
    EditText pname;
    private static int RESULT_LOAD_IMAGE = 1;
    private Toolbar mToolbar;
    ImageView profimg;
    String picturePath;

    private FragmentDrawer drawerFragment;
    SharedPreferences sp;

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

        sp=getSharedPreferences("profilePicture",MODE_PRIVATE);



        profimg = (ImageView) findViewById(R.id.profileimg);
        mToolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(mToolbar);
        getSupportActionBar().setDisplayShowHomeEnabled(true);
        drawerFragment = (FragmentDrawer)
                getSupportFragmentManager().findFragmentById(R.id.fragment_navigation_drawer);
        drawerFragment.setUp(R.id.fragment_navigation_drawer, (DrawerLayout) findViewById(R.id.drawer_layout), mToolbar);
        drawerFragment.setDrawerListener(this);

        displayView(0);
        pname = (EditText) findViewById(R.id.pname);

        profimg.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);
            }
        });

        pname.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                pname.setInputType(0x0000006);
                pname.setCursorVisible(true);

            }
        });
        pname.setOnFocusChangeListener(new View.OnFocusChangeListener() {
            @Override
            public void onFocusChange(View v, boolean hasFocus) {
                    if(hasFocus){
                        pname.setCursorVisible(false);
                    }
                else{
                        pname.setCursorVisible(false);
                    }
            }
        });


        pname.setOnEditorActionListener(new EditText.OnEditorActionListener() {
            @Override
            public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
                if (event!=null && event.getKeyCode() != KeyEvent.KEYCODE_ENTER || actionId != EditorInfo.IME_ACTION_DONE ) {
                    return false;
                }
                else if(actionId==EditorInfo.IME_ACTION_DONE || event==null || event.getKeyCode() == KeyEvent.KEYCODE_ENTER){

                        pname.setCursorVisible(false);
                        InputMethodManager imm = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
                        imm.hideSoftInputFromWindow(pname.getWindowToken(), 0);
                          return false;
                }
                return false;
            }
        });
        if(sp.getString("dp" ,"").equals(picturePath)){
            Glide.with(this).load(picturePath)
                    .crossFade()
                    .thumbnail(0.5f)
                    .bitmapTransform(new CircleTransform(this))
                    .diskCacheStrategy(DiskCacheStrategy.ALL)
                    .into(profimg);
        }

    }



    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(profimg);

            sp.edit().putString("dp", picturePath).apply();


        }
    }

Answer 1

我最后解决了自己的问题，这就是答案。

首先声明全球：SharedPreferences sp;

现在在onCreate方法中执行此操作：

sp=getSharedPreferences("profilePicture",MODE_PRIVATE);

boolean path =sp.contains("dp");

 if(path) {
            String value=sp.getString("dp",picturePath);
            Glide.with(this).load(value)
                    .crossFade()
                    .thumbnail(0.5f)
                    .bitmapTransform(new CircleTransform(this))
                    .diskCacheStrategy(DiskCacheStrategy.ALL)
                    .into(profimg);
        }

onActivityResult中的

在使用滑动

加载图片后执行此操作

sp.edit().putString("dp", picturePath).apply();

每次上传新图片时都会保存您的图片并重新启动您的应用，此图片会一直存在，直到您上传另一张图片，就这样了。

保存在首选项中的图像不会加载图片onCreate方法

1 个答案: