直播平台搭建源码，调用系统相册实现多选图片上传
1、首先需要给webview的WebChromeClient设置以下代码，才可以实现h5与Android交互选取图片
private ValueCallback<Uri> mValueCallbackUri;
private ValueCallback<Uri[]> mValueCallbackUris;
this.setWebChromeClient(new WebChromeClient() {
// For Android < 3.0
public void openFileChooser(ValueCallback<Uri> uploadMsg) {
if (mValueCallbackUri != null) {
mValueCallbackUri.onReceiveValue(null);
mValueCallbackUri = null;
}
mValueCallbackUri = uploadMsg;
showOptions();
}
//For Android 3.0 - 4.0
public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType) {
if (mValueCallbackUri != null) {
mValueCallbackUri.onReceiveValue(null);
mValueCallbackUri = null;
}
mValueCallbackUri = uploadMsg;
showOptions();
}
// For Android > 4.1.1
public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture) {
if (mValueCallbackUri != null) {
mValueCallbackUri.onReceiveValue(null);
mValueCallbackUri = null;
}
mValueCallbackUri = uploadMsg;
showOptions();
}
// For Android > 5.0支持多张上传
@Override
public boolean onShowFileChooser(WebView webView,
ValueCallback<Uri[]> uploadMsg,
FileChooserParams fileChooserParams) {
if (mValueCallbackUris != null) {
mValueCallbackUris.onReceiveValue(null);
mValueCallbackUris = null;
}
mValueCallbackUris = uploadMsg;
showOptions();
return true;
}
});
2、点击h5页面设置的<input type="file" name="pic" accept="image/*">，就会调用到Android webview设置的openFileChooser或者onShowFileChooser
3、然后在openFileChooser或者onShowFileChooser中调用打开相册的代码即可
1）方法一：打开相册，并且只支持选择单张图片
Intent intent = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);// 调用
activity.startActivityForResult(intent, TYPE_GALLERY);
或者
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
activity.startActivityForResult(Intent.createChooser(intent, "Select Picture"), TYPE_GALLERY);
2）方法二：打开相册，并且支持选择多张图片（Android 5.0+才支持），只需在上述代码基础上增加以下代码即可
intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
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