如果在Android中有如下方法定义:
@JavascriptInterface
public void inferenceImage() {
webView.loadUrl("javascript:recognitionResult()");
}
当该方法被javascript函数调用,而该方法中又回调了另一个javascript函数,此时可能会报错,错误信息如下:
W/System.err: java.lang.RuntimeException: java.lang.Throwable: A WebView method was called on thread 'JavaBridge'. All WebView methods must be called on the same thread. (Expected Looper Looper (main, tid 1) {f0124b2} called on Looper (JavaBridge, tid 3538) {e19e0b1}, FYI main Looper is Looper (main, tid 1) {f0124b2})
解决方法有如下2种:
方法1:
@JavascriptInterface
public void inferenceImage() {
webView.post(new Runnable() {
@Override
public void run() {
webView.loadUrl("javascript:recognitionResult()");
}
});
}
方法2:
@JavascriptInterface
public void inferenceImage() {
runOnUiThread(new Runnable() {
@Override
public void run() {
webView.loadUrl("javascript:recognitionResult()");
}
});
}
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