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android 下载进度发送事件发出和发送事件频率优化

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This commit is contained in:
nonghuaqiang
2019-12-03 12:34:02 +08:00
parent f20263b827
commit a93875884c
2 changed files with 32 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
android/src/main/java/cn/reactnative/modules/update/DownloadTask.java
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@@ -3,6 +3,8 @@ package cn.reactnative.modules.update;
import android.content.Context;
import android.os.AsyncTask;
import android.util.Log;
import com.facebook.react.bridge.Arguments;
import com.facebook.react.bridge.WritableMap;
import okhttp3.OkHttpClient;
import okhttp3.Request;
@@ -31,11 +33,11 @@ import java.util.HashMap;
import okio.BufferedSink;
import okio.BufferedSource;
import okio.Okio;
import static cn.reactnative.modules.update.UpdateModule.sendEvent;
/**
* Created by tdzl2003 on 3/31/16.
*/
class DownloadTask extends AsyncTask<DownloadTaskParams, Void, Void> {
class DownloadTask extends AsyncTask<DownloadTaskParams, long[], Void> {
final int DOWNLOAD_CHUNK_SIZE = 4096;
Context context;
@@ -91,11 +93,17 @@ class DownloadTask extends AsyncTask<DownloadTaskParams, Void, Void> {
long bytesRead = 0;
long totalRead = 0;
double lastProgressValue=0;
while ((bytesRead = source.read(sink.buffer(), DOWNLOAD_CHUNK_SIZE)) != -1) {
totalRead += bytesRead;
if (UpdateContext.DEBUG) {
Log.d("RNUpdate", "Progress " + totalRead + "/" + contentLength);
}
double progress = Math.round(((double) totalRead * 100) / contentLength);
if ((progress != lastProgressValue) || (totalRead == contentLength)) {
lastProgressValue = progress;
publishProgress(new long[]{(long)progress,totalRead, contentLength});
}
}
if (totalRead != contentLength) {
throw new Error("Unexpected eof while reading ppk");
@@ -108,6 +116,17 @@ class DownloadTask extends AsyncTask<DownloadTaskParams, Void, Void> {
}
}
@Override
protected void onProgressUpdate(long[]... values) {
super.onProgressUpdate(values);
WritableMap params = Arguments.createMap();
params.putDouble("progress", (values[0][0]));
params.putDouble("totalRead", (values[0][1]));
params.putDouble("contentLength", (values[0][2]));
sendEvent("progress", params);
}
byte[] buffer = new byte[1024];
private static native byte[] bsdiffPatch(byte[] origin, byte[] patch);

12
android/src/main/java/cn/reactnative/modules/update/UpdateModule.java
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@@ -9,11 +9,14 @@ import com.facebook.react.ReactApplication;
import com.facebook.react.ReactInstanceManager;
import com.facebook.react.bridge.Promise;
import com.facebook.react.bridge.ReactApplicationContext;
import com.facebook.react.bridge.ReactContext;
import com.facebook.react.bridge.ReactContextBaseJavaModule;
import com.facebook.react.bridge.ReactMethod;
import com.facebook.react.bridge.ReadableMap;
import com.facebook.react.bridge.UiThreadUtil;
import com.facebook.react.bridge.JSBundleLoader;
import com.facebook.react.bridge.WritableMap;
import com.facebook.react.modules.core.DeviceEventManagerModule;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
@@ -25,10 +28,11 @@ import java.util.Map;
*/
public class UpdateModule extends ReactContextBaseJavaModule{
UpdateContext updateContext;
public static ReactApplicationContext mContext;
public UpdateModule(ReactApplicationContext reactContext, UpdateContext updateContext) {
super(reactContext);
this.updateContext = updateContext;
mContext=reactContext;
}
public UpdateModule(ReactApplicationContext reactContext) {
@@ -170,4 +174,10 @@ public class UpdateModule extends ReactContextBaseJavaModule{
}
});
}
/* 发送事件*/
public static void sendEvent(String eventName, WritableMap params) {
((ReactContext) mContext).getJSModule(DeviceEventManagerModule.RCTDeviceEventEmitter.class).emit(eventName,
params);
}
}