A solution in Android where webView calls JS incorrectly
- 2020-06-15 10:10:09
- OfStack
The problem
There was an error with webView calling JS.
class TestJS {
......
public TestJS(){
}
public void save(String data){
webView.loadUrl("javascript: alert(" + data +")");
}
......
}
W/WebView(2088): 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) {b3dbcb18} called on Looper (JavaBridge, tid 120) {b44a1af8}, FYI main Looper is Looper (main, tid 1) {b3dbcb18})
W/WebView(2088): at android.webkit.WebView.checkThread(WebView.java:2063)
W/WebView(2088): at android.webkit.WebView.loadUrl(WebView.java:794)
W/WebView(2088): at com.ue.oa.activity.XFormActivity.alert(XFormActivity.java:180)
W/WebView(2088): at com.ue.oa.activity.XFormActivity$FormActions.save(XFormActivity.java:193)
W/WebView(2088): at com.android.org.chromium.base.SystemMessageHandler.nativeDoRunLoopOnce(Native Method)
W/WebView(2088): at com.android.org.chromium.base.SystemMessageHandler.handleMessage(SystemMessageHandler.java:27)
W/WebView(2088): at android.os.Handler.dispatchMessage(Handler.java:102)
W/WebView(2088): at android.os.Looper.loop(Looper.java:136)
W/WebView(2088): at android.os.HandlerThread.run(HandlerThread.java:61)
To solve
The save method is modified to:
public void save(String data){
webView.post(new Runnable() {
@Override
public void run() {
webView.loadUrl("javascript: alert(" + data +")");
}
});
}
That's the solution, isn't it easy? I hope you like it.