clipboard

API : https://developer.android.com/guide/topics/text/copy-paste.html 持三种格式 Text String URI 一个URI Intent 一个Intent 使用 ,主要用到 ClipboardManager https://developer.android.com/reference/android/content/ClipboardManager.html ClipboardManager clipboard = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE); 然后创建一个 ClipData 对象， ClipData.Item 包含 text, URI, or Intent data;

复制数据至 ClipData:

For text:
ClipData clip = ClipData.newPlainText(label, text);
For a URI:
ClipData clip = ClipData.newUri(resolver, label, URI);
For an Intent:
ClipData clip = ClipData.newIntent(label, intent);// intent = new Intent(this, xxx.class)

将ClipData赋值给clipboard clipboard.setPrimaryClip(clip);

从 clipboard 得到数据

ClipboardManager中有很多判断与操作方法：
getPrimaryClip()	            返回剪贴板上的当前Copy内容
getPrimaryClipDescription()	    返回剪贴板上的当前Copy的说明
hasPrimaryClip()	            如果当前剪贴板上存在Copy返回True
setPrimaryClip(ClipData clip)	设置剪贴板上的当前Copy
setText(CharSequence text)	    设置文本到当前Copy
getText()	                    获取剪贴板复制的文本

Text:

第一步,得到全局的ClipboardManager

ClipboardManager clipboard = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);

第二步,开启或关闭"paste"选项,判断clipboard是否有ClipData

// Gets the ID of the "paste" menu item
MenuItem mPasteItem = menu.findItem(R.id.menu_paste);

// If the clipboard doesn't contain data, disable the paste menu item.
// If it does contain data, decide if you can handle the data.
if (!(clipboard.hasPrimaryClip())) {

    mPasteItem.setEnabled(false);

} else if (!(clipboard.getPrimaryClipDescription().hasMimeType(MIMETYPE_TEXT_PLAIN))) {
    // This disables the paste menu item, since the clipboard has data but it is not plain text
    mPasteItem.setEnabled(false);
} else {
    // This enables the paste menu item, since the clipboard contains plain text.
    mPasteItem.setEnabled(true);
}

第三步,复制数据

// Examines the item on the clipboard. If getText() does not return null, the clip item contains the
// text. Assumes that this application can only handle one item at a time.
 ClipData.Item item = clipboard.getPrimaryClip().getItemAt(0);
// Gets the clipboard as text.
pasteData = item.getText();
// If the string contains data, then the paste operation is done
if (pasteData != null) {
    return;
// The clipboard does not contain text. If it contains a URI, attempts to get data from it
} else {
    Uri pasteUri = item.getUri();
    // If the URI contains something, try to get text from it
    if (pasteUri != null) {
        // calls a routine to resolve the URI and get data from it. This routine is not
        // presented here.
        pasteData = resolveUri(Uri);
        return;
    } else {
    // Something is wrong. The MIME type was plain text, but the clipboard does not contain either
    // text or a Uri. Report an error.
    Log.e("Clipboard contains an invalid data type");
    return;
    }
}

URI:步骤类似

ClipData clip = clipboard.getPrimaryClip();
if (clip != null) {
    // Gets the first item from the clipboard data
    ClipData.Item item = clip.getItemAt(0);
    // Tries to get the item's contents as a URI
    Uri pasteUri = item.getUri();
    // If the clipboard contains a URI reference
    if (pasteUri != null) {
        // Is this a content URI?
        String uriMimeType = cr.getType(pasteUri);
        // If the return value is not null, the Uri is a content Uri
        if (uriMimeType != null) {
            // Does the content provider offer a MIME type that the current application can use?
            if (uriMimeType.equals(MIME_TYPE_CONTACT)) {
                // Get the data from the content provider.
                Cursor pasteCursor = cr.query(uri, null, null, null, null);
                // If the Cursor contains data, move to the first record
                if (pasteCursor != null) {
                    if (pasteCursor.moveToFirst()) {
                    // get the data from the Cursor here. The code will vary according to the
                    // format of the data model.
                    }
                }
                // close the Cursor
                pasteCursor.close();
             }
         }
     }
}

Intent:

// Checks to see if the clip item contains an Intent, by testing to see if getIntent() returns null
Intent pasteIntent = clipboard.getPrimaryClip().getItemAt(0).getIntent();
if (pasteIntent != null) {
    // handle the Intent
} else {
    // ignore the clipboard, or issue an error if your application was expecting an Intent to be
    // on the clipboard
}

一路看下来,好像是一路判断就行,就三种,得到的数据判断一下是否为空,就是这种数据