android h5本地存储 h5加载安卓本地图片权限

• 关于H5访问本地相册上传头像问题，Android默认WebView是不支持打开本地文件的，需要加载权限和适配Android各个版本，本人用的的腾讯X5内核WebView。话不多说直接上代码：

public class MainActivity extends AppCompatActivity {
    private com.tencent.smtt.sdk.WebView mWeb;
    public final static int FILECHOOSER_RESULTCODE = 1;
    public final static int FILECHOOSER_RESULTCODE_FOR_ANDROID_5 = 2;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        supportRequestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.activity_main);
        StatusBarCompat.setStatusBarColor(this, getResources().getColor(R.color.black));
        mWeb = findViewById(R.id.m_web);
        openCamera();
        initWeb();
    }

    private void initWeb() {
        String path = "http://www.baidu.com";	//访问网址
        WebSettings settings = mWeb.getSettings();
        settings.setDefaultTextEncodingName("utf-8");
        settings.setJavaScriptEnabled(true);
        settings.setJavaScriptCanOpenWindowsAutomatically(true);
        settings.setDomStorageEnabled(true);
        settings.setAllowContentAccess(true);
        settings.setBlockNetworkLoads(false);
        settings.setSupportMultipleWindows(false);
        settings.setBlockNetworkImage(false);

        mWeb.loadUrl(path);

        mWeb.setWebViewClient(new com.tencent.smtt.sdk.WebViewClient() {
            @Override
            public boolean shouldOverrideUrlLoading(WebView webView, String s) {
                webView.loadUrl(s);
                return true;
            }

            @Override
            public void onReceivedSslError(WebView webView, SslErrorHandler sslErrorHandler, SslError sslError) {
                sslErrorHandler.proceed();
            }
        });

        mWeb.setWebChromeClient(new com.tencent.smtt.sdk.WebChromeClient() {

            //扩展浏览器上传文件
            //3.0++版本
            public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType) {
                openFileChooserImpl(uploadMsg);
            }

            //3.0--版本
            public void openFileChooser(ValueCallback<Uri> uploadMsg) {
                openFileChooserImpl(uploadMsg);
            }

            public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture) {
                openFileChooserImpl(uploadMsg);
            }

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

    private void openCamera() {
        if (PackageManager.PERMISSION_GRANTED != ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.CAMERA)) {
            //提示用户开启权限，
            String[] perms = {Manifest.permission.CAMERA};
            ActivityCompat.requestPermissions(MainActivity.this, perms, 111);
        }
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        switch (requestCode) {
            case 111:
                boolean cameraAccepted = grantResults[0] == PackageManager.PERMISSION_GRANTED;
                if (cameraAccepted) {
                    Log.e("fuxx", "打开权限");
                } else {
                    Toast.makeText(this, "请手动到设置中打开应用相机权限", Toast.LENGTH_SHORT).show();
                }
                break;
        }
    }

    public ValueCallback<Uri> mUploadMessage;

    private void openFileChooserImpl(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);
    }

    public ValueCallback<Uri[]> mUploadMessageForAndroid5;

    private void onenFileChooseImpleForAndroid(ValueCallback<Uri[]> filePathCallback) {
        mUploadMessageForAndroid5 = filePathCallback;
        Intent contentSelectionIntent = new Intent(Intent.ACTION_GET_CONTENT);
        contentSelectionIntent.addCategory(Intent.CATEGORY_OPENABLE);
        contentSelectionIntent.setType("image/*");

        Intent chooserIntent = new Intent(Intent.ACTION_CHOOSER);
        chooserIntent.putExtra(Intent.EXTRA_INTENT, contentSelectionIntent);
        chooserIntent.putExtra(Intent.EXTRA_TITLE, "Image Chooser");

        startActivityForResult(chooserIntent, FILECHOOSER_RESULTCODE_FOR_ANDROID_5);
    }

    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent intent) {
        if (requestCode == FILECHOOSER_RESULTCODE) {
            if (null == mUploadMessage)
                return;
            Uri result = intent == null || resultCode != RESULT_OK ? null : intent.getData();
            mUploadMessage.onReceiveValue(result);
            mUploadMessage = null;

        } else if (requestCode == FILECHOOSER_RESULTCODE_FOR_ANDROID_5) {
            if (null == mUploadMessageForAndroid5)
                return;
            Uri result = (intent == null || resultCode != RESULT_OK) ? null : intent.getData();
            if (result != null) {
                mUploadMessageForAndroid5.onReceiveValue(new Uri[]{result});
            } else {
                mUploadMessageForAndroid5.onReceiveValue(new Uri[]{});
            }
            mUploadMessageForAndroid5 = null;
        }
    }

    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        //点击返回按钮的时候判断有没有上一页
        if (mWeb.canGoBack() && keyCode == KeyEvent.KEYCODE_BACK) {
            mWeb.goBack(); // goBack()表示返回webView的上一页面
            return true;
        }
        return super.onKeyDown(keyCode, event);
    }
}