使用位图的Picasso图像缓存

Question

尽管我在OnActivityResult中调用此方法，但从未调用此loadImage方法的内容。

public void loadImage(Uri uri){
File file = new File(getApplicationContext().getExternalCacheDir().getAbsolutePath() + "/" +uid + ".jpg");
Log.d("Check Bitmap", "file" + file);
try {
Picasso picasso = Picasso.get();
Bitmap bitmap = picasso.load(uri).get();
Log.d("Check Bitmap", "bitmap working");
bitmap.compress(Bitmap.CompressFormat.JPEG, 100,new FileOutputStream(file));
} catch (Exception e) {
Log.d("Check Bitmap", "bitmap not working, cached");
e.printStackTrace();
}

我的目标是从文件中检索图像。

这是我的OnActivityResult

@Override
protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if(requestCode ==1000){
{
if(resultCode == Activity.RESULT_OK){
imageUri = data.getData();
Context context;
final ProgressDialog dialog = new ProgressDialog(myProfile.this);
dialog.setMessage("Uploading Image...");
dialog.show();
profilepic.setImageURI(imageUri);
ref.putFile(imageUri).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
@Override
public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
ref.getDownloadUrl().addOnSuccessListener(new OnSuccessListener<Uri>() {
@Override
public void onSuccess(Uri uri) {
final Picasso picasso = Picasso.get();
picasso.setIndicatorsEnabled(true);
picasso.load(uri).into(profilepic);
downloadUri = uri;
dialog.dismiss();
Toast.makeText(getApplicationContext(), "Image Uploaded!", Toast.LENGTH_SHORT).show();

loadImage(uri); //Here I call

Answer 1

日志不应使用空格分隔的TAG。试着用一个单词代替你的"Check Bitmap"(例如"Checkere"(。然后，您将能够在您的Logcat中看到您的日志。你需要把所有的东西都放在一根线里。

以下是loadImage的完整代码块

public void loadImage(final Uri uri){
Thread thread = new Thread() {
@Override
public void run() {
Log.d("Checkere", "stuck at file");
File file = new File(getCacheDir() + File.separator + uid + ".jpg");
Log.d("Checkere", "file" + file);
try {
Picasso picasso = Picasso.get();
Bitmap bitmap = picasso.load(uri).get();
Log.d("Checkere", "bitmap working");
FileOutputStream fOut = new FileOutputStream(file);
bitmap.compress(Bitmap.CompressFormat.PNG, 85, fOut);
fOut.flush();
fOut.close();
} catch (Exception e) {
Log.d("Checkere", e.getMessage());
e.printStackTrace();
}
}};
thread.start();
}

请注意，我还在代码中添加了这两行。

fOut.flush(); 
fOut.close();

我希望这能有所帮助！