Input File Android --JS调android系

[图片上传中。。。（1）]http://blog.csdn.net/android_it/article/details/52538995 http://blog.csdn.net/android_it/article/details/52538995 Android WebView 不支持 H5 input type="file" 解决方法

Android webview JS交互，调取本地相册，并且实现上传。
首先我们要理解整个互动过程，在网页webview的的组件是 input输入框，输入类型为file,点击-----> 调用 安卓 不同的版本

private static final int FILE_SELECT_CODE = 0;
private ValueCallback<Uri> mUploadMessage;
private ValueCallback<Uri[]> umUploadMessages;
private WebChromeClient.FileChooserParams mfileChooserParams;
private int FILECHOOSER_RESULTCODE_5 = 100;
private int FILECHOOSER_RESULTCODE = 1000;

mWebView.setWebChromeClient(new WebChromeClient() {
@Override
public boolean onJsAlert(WebView view, String url, String message, final JsResult result) {
AlertDialog.Builder b2 = new AlertDialog.Builder(mContext)
.setTitle("友情提示：").setMessage(message)
.setPositiveButton("ok",
new AlertDialog.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
result.confirm();
// MyWebView.this.finish();
}
});
b2.setCancelable(false);
b2.create();
b2.show();
return true;
}

        @Override
        public boolean onShowFileChooser(WebView webView, ValueCallback<Uri[]> filePathCallback, FileChooserParams fileChooserParams) {

            umUploadMessages = filePathCallback;
            mfileChooserParams = fileChooserParams;
            Intent i = new Intent(Intent.ACTION_GET_CONTENT);
            i.addCategory(Intent.CATEGORY_OPENABLE);
            i.putExtra("return-data", true);
            i.setType("image/*");
            i.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
                    "image/*");
            startActivityForResult(Intent.createChooser(i, "选择相册"),
                    FILECHOOSER_RESULTCODE_5);
            return true;
        }

        // For Android 3.0
        public void openFileChooser(ValueCallback<Uri> uploadMsg) {
            mUploadMessage = uploadMsg;
            Intent i = new Intent(Intent.ACTION_GET_CONTENT);
            i.addCategory(Intent.CATEGORY_OPENABLE);
            i.putExtra("return-data", true);
            i.setType("image/*");
            i.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
                    "image/*");

            startActivityForResult(Intent.createChooser(i, "选择相册"),
                    FILECHOOSER_RESULTCODE);
        }

        // For Android > 4.1
        public void openFileChooser(ValueCallback<Uri> uploadMsg,
                                    String acceptType, String capture) {
            mUploadMessage = uploadMsg;
            Intent i = new Intent(Intent.ACTION_GET_CONTENT);
            i.addCategory(Intent.CATEGORY_OPENABLE);
            i.putExtra("return-data", true);
            i.setType("image/*");
            i.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
                    "image/*");
            startActivityForResult(Intent.createChooser(i, "选择相册"),
                    FILECHOOSER_RESULTCODE);
        }

        // Andorid 3.0 +
        public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType) {
            mUploadMessage = uploadMsg;
            Intent i = new Intent(Intent.ACTION_GET_CONTENT);
            i.addCategory(Intent.CATEGORY_OPENABLE);
            i.putExtra("return-data", true);
            i.setType("image/*");
            i.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
                    "image/*");
            startActivityForResult(Intent.createChooser(i, "选择相册"),
                    FILECHOOSER_RESULTCODE);
        }
    });




@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (requestCode == FILECHOOSER_RESULTCODE) {
        if (null == mUploadMessage) return;
        if (null == data) {
            mUploadMessage.onReceiveValue(null);
            mUploadMessage = null;
        } else {
            Uri result = data == null || resultCode != RESULT_OK ? null
                    : data.getData();
            mUploadMessage.onReceiveValue(result);
            mUploadMessage = null;
        }
    } else if (requestCode == FILECHOOSER_RESULTCODE_5) {// 5.0适配，主要是因为5.0的返回参数不同。
        // 处理5.0的callback
        if (umUploadMessages != null) {
            if (null != data) {
                // 5.0的处理方式不同，要注意。
                ArrayList<String> resultList = data
                        .getStringArrayListExtra("data");

                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
                    umUploadMessages.onReceiveValue(
                            mfileChooserParams.parseResult(resultCode, data));
                }
                umUploadMessages = null;
            } else {
                umUploadMessages.onReceiveValue(null);
            }
        }
    }
}

参考文章：
http://blog.csdn.net/android_it/article/details/52538995

private WebView wv;
private String url ="http://shanghai.job1s.com/wap/member/index.php?c=photo";

private ValueCallback<Uri> mUploadMessage;
public ValueCallback<Uri[]> uploadMessage;
public static final int REQUEST_SELECT_FILE = 100;
private final static int FILECHOOSER_RESULTCODE = 2;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    wv = (WebView) findViewById(R.id.webview);
    //设置支持Javascript
    wv.getSettings().setJavaScriptEnabled(true);  

    wv.loadUrl(url);
    wv.setWebViewClient(new WebViewClient() {
        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            //返回值是true的时候控制去WebView打开，为false调用系统浏览器或第三方浏览器
            view.loadUrl(url);
            return false;
        }

        @Override
        public void onPageStarted(WebView view, String url, Bitmap favicon) {
        }

        @Override
        public void onPageFinished(WebView view, String url) {
        }
    });


    wv.setWebChromeClient(new WebChromeClient(){

        // For 3.0+ Devices (Start)
        // onActivityResult attached before constructor
        protected void openFileChooser(ValueCallback uploadMsg, String acceptType)
        {
            mUploadMessage = uploadMsg;
            Intent i = new Intent(Intent.ACTION_GET_CONTENT);
            i.addCategory(Intent.CATEGORY_OPENABLE);
            i.setType("image/*");
            startActivityForResult(Intent.createChooser(i, "File Browser"), FILECHOOSER_RESULTCODE);
        }


        // For Lollipop 5.0+ Devices
        @TargetApi(Build.VERSION_CODES.LOLLIPOP)
        public boolean onShowFileChooser(WebView mWebView, ValueCallback<Uri[]> 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;
                Toast.makeText(getBaseContext(), "Cannot Open File Chooser", Toast.LENGTH_LONG).show();
                return false;
            }
            return true;
        }

        //For Android 4.1 only
        protected void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture)
        {
            mUploadMessage = uploadMsg;
            Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
            intent.addCategory(Intent.CATEGORY_OPENABLE);
            intent.setType("image/*");
            startActivityForResult(Intent.createChooser(intent, "File Browser"), FILECHOOSER_RESULTCODE);
        }

        protected void openFileChooser(ValueCallback<Uri> uploadMsg)
        {
            mUploadMessage = uploadMsg;
            Intent i = new Intent(Intent.ACTION_GET_CONTENT);
            i.addCategory(Intent.CATEGORY_OPENABLE);
            i.setType("image/*");
            startActivityForResult(Intent.createChooser(i, "File Chooser"), FILECHOOSER_RESULTCODE);
        }

    });

}


@Override
public 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;
    }
    else
        Toast.makeText(getBaseContext(), "Failed to Upload Image", Toast.LENGTH_LONG).show();
}

android webview使用html5<input id="input" type="file"/> 上传相册、拍照照片