webview
代码示例
webview

在android的组件webview中是不能用H5上传文件了的。但是有时候我们需要用H5去调用上传文件，因此需要支持这项功能。
代码示例

有不同的额版本适配方法 3.0 4.0 5.0 6.0
public class PlayActivity extends AppCompatActivity {    @Override    protected void onDestroy() {        super.onDestroy();    }    /**     * Called when the activity is first created.     */    WebView web;    private ValueCallback mUploadMessage;    public ValueCallback uploadMessage;    public static final int REQUEST_SELECT_FILE = 100;    private final static int FILECHOOSER_RESULTCODE = 1;    @Override    protected void onActivityResult(int requestCode, int resultCode,                                    Intent intent) {        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {            if (requestCode == REQUEST_SELECT_FILE) {                if (uploadMessage == null)                    return;                uploadMessage.onReceiveValue(WebChromeClient.FileChooserParams.parseResult(resultCode, intent));                uploadMessage = null;            }        } else if (requestCode == FILECHOOSER_RESULTCODE) {            if (null == mUploadMessage)                return;            // Use MainActivity.RESULT_OK if you're implementing WebView inside Fragment            // Use RESULT_OK only if you're implementing WebView inside an Activity            Uri result = intent == null || resultCode != MainActivity.RESULT_OK ? null : intent.getData();            mUploadMessage.onReceiveValue(result);            mUploadMessage = null;        }    }    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_play);        web = (WebView) findViewById(R.id.webview01);        web = new WebView(this);        web.getSettings().setJavaScriptEnabled(true);        web.loadUrl("http://10.0.0.82:1346/hot/7516063/A1035B1ECD35AA7F0FAE050007F01000209");        web.setWebViewClient(new myWebClient());        web.setWebChromeClient(new WebChromeClient() {            //The undocumented magic method override            //Eclipse will swear at you if you try to put @Override here            // For Android 3.0+            public void openFileChooser(ValueCallback uploadMsg) {                mUploadMessage = uploadMsg;                Intent i = new Intent(Intent.ACTION_GET_CONTENT);                i.addCategory(Intent.CATEGORY_OPENABLE);                i.setType("image/*");                PlayActivity.this.startActivityForResult(Intent.createChooser(i, "File Chooser"), FILECHOOSER_RESULTCODE);            }            public void openFileChooser(ValueCallback uploadMsg, String acceptType) {                openFileChooser(uploadMsg);            }            public void openFileChooser(ValueCallback uploadMsg, String acceptType, String capture) {                openFileChooser(uploadMsg);            }            // For Lollipop 5.0+ Devices            @TargetApi(Build.VERSION_CODES.LOLLIPOP)            public boolean onShowFileChooser(WebView mWebView, ValueCallback filePathCallback, WebChromeClient.FileChooserParams fileChooserParams) {                if (uploadMessage != null) {                    uploadMessage.onReceiveValue(null);                    uploadMessage = null;                }                uploadMessage = filePathCallback;                Intent intent = fileChooserParams.createIntent();                try {                    startActivityForResult(intent, REQUEST_SELECT_FILE);                } catch (ActivityNotFoundException e) {                    uploadMessage = null;                    return false;                }                return true;            }        });        setContentView(web);    }    public class myWebClient extends WebViewClient {        @Override        public void onPageStarted(WebView view, String url, Bitmap favicon) {            // TODO Auto-generated method stub            super.onPageStarted(view, url, favicon);        }        @Override        public boolean shouldOverrideUrlLoading(WebView view, String url) {            // TODO Auto-generated method stub            view.loadUrl(url);            return true;        }        @Override        public void onPageFinished(WebView view, String url) {            // TODO Auto-generated method stub            super.onPageFinished(view, url);        }    }    //flipscreen not loading again    @Override    public void onConfigurationChanged(Configuration newConfig) {        super.onConfigurationChanged(newConfig);    }}
Android(安卓)WebView 支持H5图片上传

webview

代码示例

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