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Added existsRes function to Android #710

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Added existsRes function to Android #710

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13533a9
existsRes function
Apr 18, 2019
625f33d
Merge branch 'master' of https://github.com/itinance/react-native-fs
airman00 Jul 9, 2019
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8 changes: 8 additions & 0 deletions FS.common.js
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Original file line number Diff line number Diff line change
Expand Up @@ -224,6 +224,14 @@ var RNFS = {
return RNFSManager.exists(normalizeFilePath(filepath));
},

// Android-only
existsRes(filename: string) {
if (!RNFSManager.existsRes) {
throw new Error('existsRes is not available on this platform');
}
return RNFSManager.existsRes(filename);
},

stopDownload(jobId: number): void {
RNFSManager.stopDownload(jobId);
},
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21 changes: 21 additions & 0 deletions android/src/main/java/com/rnfs/RNFSManager.java
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Expand Up @@ -976,4 +976,25 @@ public Map<String, Object> getConstants() {

return constants;
}


@ReactMethod
public void existsRes(String filename, Promise promise) {
try {
int res = getResIdentifier(filename);
if (res > 0) {
promise.resolve(true);
} else {
promise.resolve(false);
}
} catch (Exception ex) {
ex.printStackTrace();
reject(promise, filename, ex);
}
}

private int getResIdentifier(String filename) {
return getReactApplicationContext().getResources().getIdentifier(filename, "raw", getReactApplicationContext().getPackageName());
}

}