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我有兩個類HomeActivity
和EditActivity
,下面是我的HomeActivity
類的代碼,其中我從圖庫中獲取圖像並想解碼它,解碼後我想使用該類圖像作爲我在EditActivity
按鈕功能中的輸入。如何在其他類中使用一個類別的數據輸出
HomeActivity
public class HomeActivity extends Activity implements OnClickListener {
private Button btnEdit, btnGallery;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);
btnEdit = (Button) findViewById(R.id.btn_edit);
btnEdit.setOnClickListener(this);
btnGallery = (Button) findViewById(R.id.btn_gallery);
btnGallery.setOnClickListener(this);
}
@Override
public void onClick(View view) {
Intent intent;
switch (view.getId()) {
case R.id.btn_edit:
intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(
Intent.createChooser(intent, "Select Photo"),
MyConstants.TAKE_PHOTO);
break;
}
}
@Override
public void onBackPressed() {
super.onBackPressed();
}
public void onActivityResult(final int requestCode, int resultCode,
final Intent data) {
System.out.println("Data come from: " + data);
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == MyConstants.TAKE_PHOTO) {
if (resultCode == RESULT_OK) {
Uri selectedImageUri = data.getData();
String selectedImagePath = getPath(selectedImageUri);
try
{
InputStream is = HomeActivity.this.getContentResolver().openInputStream(selectedImageUri);
final Bitmap bmInImg = BitmapFactory.decodeStream(is);
mPhotoIntArray = new int[bmInImg.getWidth() * bmInImg.getHeight()];
nPhotoIntArray = new int[bmInImg.getWidth() * bmInImg.getHeight()];
bmInImg.getPixels(mPhotoIntArray, 0, bmInImg.getWidth(), 0, 0, bmInImg.getWidth(), bmInImg.getHeight());
mCannyOutArray = new int[bmInImg.getWidth() * bmInImg.getHeight()];
final Bitmap bmOutImg = Bitmap.createBitmap(bmInImg.getWidth(), bmInImg.getHeight(), Config.ARGB_8888);
bmOutImg.setPixels(mCannyOutArray, 0, bmInImg.getWidth(), 0, 0, bmInImg.getWidth(), bmInImg.getHeight());
}
catch (IOException e) {
e.printStackTrace();
}
// System.out.println("Image Path : " + selectedImagePath);
Intent intent = new Intent(HomeActivity.this,
PhotoEditorActivity.class);
intent.setData(Uri.parse(selectedImagePath));
startActivity(intent);
}
}
else if (requestCode == MyConstants.APP_EXIT) {
if (resultCode == Activity.RESULT_OK) {
finish();
System.exit(0);
}
}
}
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);
}
}
現在我想用bmInImg
和bmOutImg
在HomeActivity的try/catch
在EditActivity上的按鈕進行點擊喜歡
@Override
public void onClick(View view)
{
switch (view.getId()) {
case R.id.btn_camera:
negative(bmInImg.getHeight(),bmInImg.getWidth(), mPhotoIntArray, mCannyOutArray);
bmOutImg.setPixels(mCannyOutArray, 0, bmInImg.getWidth(), 0, 0, bmInImg.getWidth(), bmInImg.getHeight());
break;
}
}
我想是因爲我用的是整體與上面的邏輯使用它代碼try/catch
在HomeActivity類的EditActivity上的btn_camera
點擊,但它沒有顯示output.Any其他邏輯也讚賞。
謝謝