我创建了6个按钮，用于更新名为“ Stickers.java”的Java类中的值。它可以更新值“ PACK_LIB”，但只有在设备上重新启动应用程序时才会显示贴纸。
我用showStickers（）尝试过；和getStickers（）;在每个按钮上调用onClick方法，但是它不起作用。
我想实现按钮重新加载Java类“ Stickers.java”和“ KeyboardService.java”。我该如何做或其他任何方法来重新装入贴纸？
------ Stickers.java
public class Stickers {
private static final String TAG = "Stickers";
private static final String PACK_DATA_LIST = "PACK_DATA_LIST";
private static final String SAVE_VERSION = "SAVE_VERSION";
public StickerpacksResponse stickerpacksResponse;
public final List<PackData> packDataList;
public List<PackData> packDataListDefault = new ArrayList<PackData>();
private SharedPreferences sharedPreferences;
private long lastDownload = 0;
private Context lContext;
public Stickers(Context context) {
lContext = context;
sharedPreferences = context.getSharedPreferences("ROKOmoji", Context.MODE_PRIVATE);
checkVersion(false);
String packDataListString = sharedPreferences.getString(PACK_DATA_LIST, null);
packDataList = new ArrayList<>();
if (packDataListString != null) {
Type listType = new TypeToken<List<PackData>>() {
}.getType();
Gson gson = new Gson();
packDataList.addAll((Collection<? extends PackData>) gson.fromJson(packDataListString, listType));
} else {
setDefaultStickerPack();
}
}
public static Boolean itGif(String pathName) {
if ("image/gif".equals(getMimeTypeOfFile(pathName))) {
return true;
}
return false;
}
public static String getMimeTypeOfFile(String pathName) {
BitmapFactory.Options opt = new BitmapFactory.Options();
opt.inJustDecodeBounds = true;
BitmapFactory.decodeFile(pathName, opt);
return opt.outMimeType;
}
public static BitmapFactory.Options getBitmapOptions(String path) {
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeFile(path,options);
options.inJustDecodeBounds = false;
return options;
}
public void loadStickers(final CallbackStickersLoaded callback) {
long timeWaiting = 15 * 60 * 1000; //15 min
//long timeWaiting = 10000; //10 sec
if ((System.currentTimeMillis() - lastDownload) > timeWaiting) {
lastDownload = System.currentTimeMillis();
Log.i(TAG, "--- Loading stickers...");
RokoStickers.getStickerpacks(null, "resolve=stickers", new RokoStickers.CallbackRokoStickers() {
@Override
public void success(Response response) {
stickerpacksResponse = new Gson().fromJson(response.body, StickerpacksResponse.class);
loadImages(callback);
Log.i(TAG, "--- Loading stickers complete");
}
@Override
public void failure(Response response) {
Log.e(TAG, "loadStickers failure, code: " + response.code);
}
});
} else {
callback.pack();
}
}
public void loadImages(final CallbackStickersLoaded callback) {
if (stickerpacksResponse != null) {
packDataList.clear();
List<StickerpacksResponse.Stickerpacks> activePacks = new ArrayList<>();
for (final StickerpacksResponse.Stickerpacks pack : stickerpacksResponse.data) {
if (!"active".equals(pack.liveStatus)) {
continue;
}
activePacks.add(pack);
}
if(activePacks.size() == 0)
return;
packDataList.addAll(Arrays.asList(new PackData[activePacks.size()]));
final CountDownLatch countDownLatch = new CountDownLatch(activePacks.size());
int i = 0;
for (final StickerpacksResponse.Stickerpacks pack : activePacks) {
final int finalI = i++;
ThreadUtils.runOnBackground(new Runnable() {
@Override
public void run() {
File packIconOn = downloadFile(pack.packIconFileGroup.files[0].file.url, "i" + pack.packIconFileGroup.files[0].file.objectId);
File packIconOff = downloadFile(pack.unselectedPackIconFileGroup.files[0].file.url, "i" + pack.unselectedPackIconFileGroup.files[0].file.objectId);
PackData packData = new PackData();
packData.objectId = pack.objectId;
packData.name = pack.name;
packData.iconOn = packIconOn;
packData.iconOff = packIconOff;
List<StickerData> stickerData = new ArrayList<StickerData>();
for (StickerpacksResponse.Stickerpacks.PackStickers sticker : pack.stickers) {
for (StickerpacksResponse.Stickerpacks.SRFiles srFiles : sticker.imageFileGroup.files) {
File localeFile = downloadFile(srFiles.file.url, "s" + srFiles.file.objectId);
if (localeFile != null) {
File iconFile = createIconKey(localeFile, "si" + srFiles.file.objectId);
if (iconFile != null) {
StickerData sd = new StickerData();
sd.objectId = sticker.objectId;
sd.packId = pack.objectId;
sd.packName = pack.name;
sd.file = localeFile;
sd.iconKey = iconFile;
sd.mime = getMimeTypeOfFile(localeFile.getPath()); //"image/gif";
sd.url = srFiles.file.url;
sd.imageId = srFiles.file.objectId;
stickerData.add(sd);
}
}
}
}
synchronized (packDataList) {
if (stickerData.size() > 0) {
packData.stickers = stickerData;
packDataList.set(finalI, packData);
}
if (packDataList.size() > 0) {
String json = new Gson().toJson(packDataList);
sharedPreferences.edit().putString(PACK_DATA_LIST, json).apply();
sharedPreferences.edit().putInt(SAVE_VERSION, BuildConfig.VERSION_CODE).apply();
}
countDownLatch.countDown();
if (callback != null) {
callback.pack();
}
}
}
});
}
try {
countDownLatch.await();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
// Resize bitmap for icon key
private File createIconKey(File imageFile, String localeFileName) {
final File outputFile = new File(KeyboardService.imagesDir, localeFileName);
if (outputFile.exists()) {
return outputFile;
}
try {
OutputStream dataWriter = new FileOutputStream(outputFile);
Bitmap bm = BitmapFactory.decodeFile(imageFile.getPath());
if (bm == null) {
imageFile.delete();
return null;
}
try {
float px = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 48, lContext.getResources().getDisplayMetrics());
int optimaDp = Math.round(px);
//int height = Math.round(bm.getHeight() / (bm.getWidth() / optimaWidth));
int width = 0;
int height = 0;
if(bm.getWidth() > bm.getHeight()){
double kf = (double) bm.getWidth() / (double) optimaDp;
width = optimaDp;
height = (int) Math.round((double) bm.getHeight() / kf);
} else if (bm.getHeight() > bm.getWidth()){
double kf = ((double) bm.getHeight() / (double) optimaDp);
height=optimaDp;
width = (int) Math.round((double) bm.getWidth() / kf);
} else {
width=optimaDp;
height=optimaDp;
}
Log.v("TAG",localeFileName+"-------------------------------------------------------");
Log.v("TAG","w: "+bm.getWidth()+" h: "+bm.getHeight());
Log.v("TAG","w: "+width+" h1: "+height);
Bitmap ico = Bitmap.createScaledBitmap(bm, width, height, true);
ico.compress(Bitmap.CompressFormat.PNG, 100, dataWriter);
Log.i(TAG, "create icon " + outputFile.getName() + ": " + outputFile.length() + " bytes; Width: " + width + "px Height: " + height);
return outputFile;
} finally {
if (dataWriter != null) {
dataWriter.flush();
dataWriter.close();
}
}
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
private File downloadFile(String url, String localeFileName) {
final File outputFile = new File(KeyboardService.imagesDir, localeFileName);
if (outputFile.exists()) {
return outputFile;
}
try {
InputStream resourceReader = (InputStream) new URL(url).getContent();
final byte[] buffer = new byte[4096];
OutputStream dataWriter = new FileOutputStream(outputFile);
try {
while (true) {
final int numRead = resourceReader.read(buffer);
if (numRead <= 0) {
break;
}
dataWriter.write(buffer, 0, numRead);
}
if (outputFile.length() > 0) {
Log.i(TAG, "load file: " + outputFile.getName() + ": " + outputFile.length() + " bytes");
return outputFile;
} else {
outputFile.delete();
return null;
}
} finally {
if (dataWriter != null) {
dataWriter.flush();
dataWriter.close();
}
if (resourceReader != null) {
resourceReader.close();
}
}
} catch (IOException e) {
e.printStackTrace();
return null;
}
}
private void defAppPack(){
// in = lContext.getAssets().open("pack/pack_on.png");
try {
String packList[] = lContext.getAssets().list("pack_app");
for(String img: packList){
Log.i("###>>>",img);
}
} catch (IOException e) {
e.printStackTrace();
}
}
public static String PACK_LIB ="";
public void setDefaultStickerPack() {
checkVersion(true);
InputStream in = null;
String packList[]=new String[0];
String PACK_ICON="pack_on.png";
String PACK_APP="pack_app";
String curAssets="";
try {
in = lContext.getAssets().open(PACK_APP+"/"+PACK_ICON);
curAssets=PACK_APP;
packList = lContext.getAssets().list(curAssets);
} catch (IOException e) {
e.printStackTrace();
}
if(in==null) {
try {
in = lContext.getAssets().open(PACK_LIB+"/"+PACK_ICON);
curAssets=PACK_LIB;
packList = lContext.getAssets().list(curAssets);
} catch (IOException e) {
e.printStackTrace();
}
}
if (in != null) {
long packId = 1;
PackData packData = new PackData();
packData.objectId = packId;
packData.name = "ROKOmoji";
packData.iconOn = copyImgFile(in, "i" + packId + "_on");
//packData.iconOff = copyImgFile(inOff, "i" + packId + "_off");
List<StickerData> stickerData = new ArrayList<StickerData>();
long i = 0;
for (String img: packList) {
if(PACK_ICON.equals(img)){
continue;
}
InputStream sIs = null;
try {
sIs = lContext.getAssets().open(curAssets+"/"+img);
} catch (IOException e) {
e.printStackTrace();
}
if (sIs != null) {
StickerData sd = new StickerData();
i=i+1;
File file = copyImgFile(sIs, "s" + img);
sd.objectId = i;
sd.imageId = i;
sd.packId = packId;
sd.packName = packData.name;
sd.file = file;
sd.iconKey = createIconKey(file, "si" + img);
sd.mime = getMimeTypeOfFile(file.getPath());//"image/gif"
sd.url = null;
stickerData.add(sd);
}
}
packData.stickers = stickerData;
packDataListDefault.add(packData);
}
}
private File copyImgFile(InputStream resourceReader, String localeFileName) {
try {
final File tempFile = new File(KeyboardService.imagesDir, localeFileName);
final byte[] buffer = new byte[4096];
OutputStream dataWriter = null;
try {
dataWriter = new FileOutputStream(tempFile);
while (true) {
final int numRead = resourceReader.read(buffer);
if (numRead <= 0) {
break;
}
dataWriter.write(buffer, 0, numRead);
}
return tempFile;
} finally {
if (dataWriter != null) {
dataWriter.flush();
dataWriter.close();
}
if (resourceReader != null) {
resourceReader.close();
}
}
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
private void checkVersion(Boolean del) {
//BuildConfig.VERSION_CODE;
int saveVersion = sharedPreferences.getInt(SAVE_VERSION, 0);
Log.i(TAG, "Check version: old: "+saveVersion+" current: "+BuildConfig.VERSION_CODE);
if ((saveVersion != BuildConfig.VERSION_CODE) || del) {
sharedPreferences.edit().clear().commit();
clearCash(KeyboardService.imagesDir);
clearCash(KeyboardService.tempDir);
}
}
public void clearCash(File dir) {
Log.d(TAG, "--- Clear cash ---");
File[] files = dir.listFiles();
if (files != null) {
for (File file : files) {
if (!file.isDirectory()) {
Log.v(TAG, "--- " + file.getName() + " delete");
file.delete();
}
}
}
}
public interface CallbackStickersLoaded {
void pack();
}
}
------ KeyboardService.java
@Override
public View onCreateInputView() {
mainBoard = (LinearLayout) getLayoutInflater().inflate(R.layout.main_board_layout, null);
packNameLabel = (TextView) mainBoard.findViewById(R.id.packNameLabel);
scrollView = (ScrollView) mainBoard.findViewById(R.id.gif_view);
stickerView = (RecyclerView) getLayoutInflater().inflate(R.layout.recycler_view, null);
stickerView.addItemDecoration(new MarginDecoration(this));
stickerView.setHasFixedSize(true);
stickerView.setLayoutManager(new GridLayoutManager(this, 4));
scrollView.addView(stickerView);
ImageView btShareLinkGP = (ImageView) mainBoard.findViewById(R.id.btShareLinkGP);
btShareLinkGP.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
shareLinkToGP();
}
});
// BUTTONS ACTIONS
final Button button1 = (Button) mainBoard.findViewById(R.id.b1);
button1.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Stickers.PACK_LIB = "allstickers";
stickers.setDefaultStickerPack();
showStickers();
getStickers();
}
});
final Button button2 = (Button) mainBoard.findViewById(R.id.b2);
button2.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Stickers.PACK_LIB = "teststickers";
stickers.setDefaultStickerPack();
showStickers();
getStickers();
}
});
final Button button3 = (Button) mainBoard.findViewById(R.id.b3);
button3.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Stickers.PACK_LIB = "teststickers1";
stickers.setDefaultStickerPack();
showStickers();
getStickers();
}
});
final Button button4 = (Button) mainBoard.findViewById(R.id.b4);
button4.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Stickers.PACK_LIB = "teststickers2";
stickers.setDefaultStickerPack();
showStickers();
getStickers();
}
});
final Button button5 = (Button) mainBoard.findViewById(R.id.b5);
button5.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Stickers.PACK_LIB = "teststickers3";
stickers.setDefaultStickerPack();
showStickers();
getStickers();
}
});
final Button button6 = (Button) mainBoard.findViewById(R.id.b6);
button6.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Stickers.PACK_LIB = "teststickers4";
stickers.setDefaultStickerPack();
showStickers();
getStickers();
}
});
// packs bar
packView = (RecyclerView) mainBoard.findViewById(R.id.pack_recycler_view);
showStickers();
return mainBoard;
}