Android中WebView网页上传文件设置

概述文章目录功能webView#setWebChromeClient功能在webView加载的网页中选择文件可以正常调用原生的选择文件功能webView#setWebChromeClientpublicclassMainActivityextendsAppCompatActivity{privateWebViewwebView;privateValueCallback<Uri>upload

文章目录功能webView#setWebChromeClient

功能

在webVIEw加载的网页中选择文件可以正常调用原生的选择文件功能

webVIEw#setWebChromeClIEnt

public class MainActivity extends AppCompatActivity {    private WebVIEw webVIEw;    private ValueCallback<Uri> uploadfile;    private ValueCallback<Uri[]> uploadfiles;    @OverrIDe    protected voID onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentVIEw(R.layout.activity_main);        webVIEw = findVIEwByID(R.ID.webvIEw);        webVIEw.setWebChromeClIEnt(new WebChromeClIEnt() {            // For AndroID 3.0+            public voID openfileChooser(ValueCallback<Uri> uploadMsg, String acceptType) {                Log.i("test", "openfileChooser 1");                uploadfile = uploadfile;                openfileChooseProcess();            }            // For AndroID < 3.0            public voID openfileChooser(ValueCallback<Uri> uploadMsgs) {                Log.i("test", "openfileChooser 2");                uploadfile = uploadfile;                openfileChooseProcess();            }            // For AndroID  > 4.1.1            public voID openfileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture) {                Log.i("test", "openfileChooser 3");                uploadfile = uploadfile;                openfileChooseProcess();            }            // For AndroID  >= 5.0            public boolean onShowfileChooser(WebVIEw webVIEw,                                             ValueCallback<Uri[]> filePathCallback,                                             WebChromeClIEnt.fileChooserParams fileChooserParams) {                Log.i("test", "openfileChooser 4:" + filePathCallback.toString());                uploadfiles = filePathCallback;                openfileChooseProcess();                return true;            }        });        webVIEw.loadUrl("file:///androID_asset/fileChooser.HTML");    }    private voID openfileChooseProcess() {        Intent i = new Intent(Intent.ACTION_GET_CONTENT);        i.addcategory(Intent.category_OPENABLE);        i.setType("*/*");        startActivityForResult(Intent.createChooser(i, "选择文件"), 0);    }    @OverrIDe    protected voID onActivityResult(int requestCode, int resultCode, Intent data) {        super.onActivityResult(requestCode, resultCode, data);        if (resultCode == RESulT_OK) {            switch (requestCode) {                case 0:                    if (uploadfile != null) {                        Uri result = data == null || resultCode != RESulT_OK ? null                                : data.getData();                        uploadfile.onReceiveValue(result);                        uploadfile = null;                    }                    if (uploadfiles != null) {                        Uri result = data == null || resultCode != RESulT_OK ? null                                : data.getData();                        uploadfiles.onReceiveValue(new Uri[]{result});                        uploadfiles = null;                    }                    break;                default:                    break;            }        } else if (resultCode == RESulT_CANCELED) {            if (uploadfile != null) {                uploadfile.onReceiveValue(null);                uploadfile = null;            }            if (uploadfiles != null) {                uploadfiles.onReceiveValue(null);                uploadfiles = null;            }        }    }    @OverrIDe    protected voID onResume() {        super.onResume();        webVIEw.onResume();    }    @OverrIDe    protected voID onPause() {        super.onPause();        webVIEw.onPause();    }    /**     * 确保注销配置能够被释放     */    @OverrIDe    protected voID onDestroy() {        if (webVIEw != null) {            webVIEw.destroy();        }        super.onDestroy();    }}

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