转：Android中的复制粘贴

Android中的复制粘贴

The Clipboard Framework

Uri

Uri

Intent

剪贴板的类

ClipDescription

ClipData.Item

ClipDescription

MIMETYPE_TEXT_PLAIN

Uri.toString()

coerceToText()

Intent.toUri(URI_INTENT_SCHEME)

复制到剪贴板

// Gets a handle to the clipboard service.
ClipboardManager clipboard = (ClipboardManager)
getSystemService(Context.CLIPBOARD_SERVICE);

// Creates a new text clip to put on the clipboard
ClipData clip = ClipData.newPlainText("simple text","Hello, World!");

// Creates a Uri based on a base Uri and a record ID based on the contact's last name
// Declares the base URI string
private static final String CONTACTS = "content://com.example.contacts";

// Declares a path string for URIs that you use to copy data
private static final String COPY_PATH = "/copy";

// Declares the Uri to paste to the clipboard
Uri copyUri = Uri.parse(CONTACTS + COPY_PATH + "/" + lastName);

...

// Creates a new URI clip object. The system uses the anonymous getContentResolver() object to
// get MIME types from provider. The clip object's label is "URI", and its data is
// the Uri previously created.
ClipData clip = ClipData.newUri(getContentResolver(),"URI",copyUri);

// Creates the Intent
Intent appIntent = new Intent(this, com.example.demo.myapplication.class);

...

// Creates a clip object with the Intent in it. Its label is "Intent" and its data is
// the Intent object created previously
ClipData clip = ClipData.newIntent("Intent",appIntent);

// Set the clipboard's primary clip.
clipboard.setPrimaryClip(clip);

从剪贴板中粘贴

package com.example.helloclipboard;

import android.os.Bundle;
import android.app.Activity;
import android.content.ClipData;
import android.content.ClipboardManager;
import android.content.Context;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

public class HelloClipboardMainActivity extends Activity {

private EditText mEditText1 = null;
private TextView mResultTextView = null;

private ClipboardManager mClipboard = null;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_hello_clipboard_main);

mResultTextView = (TextView) findViewById(R.id.textView1);
mEditText1 = (EditText) findViewById(R.id.editText1);
Button copyButton = (Button) findViewById(R.id.button1);

Button pasteButton = (Button) findViewById(R.id.button2);

copyButton.setOnClickListener(mOnClickListener);
pasteButton.setOnClickListener(mOnClickListener);

}

private OnClickListener mOnClickListener = new OnClickListener() {

@Override
public void onClick(View v) {

switch (v.getId()) {
case R.id.button1:
copyFromEditText1();
break;
case R.id.button2:
pasteToResult();
break;

default:
break;
}
}
};

private void copyFromEditText1() {

// Gets a handle to the clipboard service.
if (null == mClipboard) {
mClipboard = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);

}

// Creates a new text clip to put on the clipboard
ClipData clip = ClipData.newPlainText("simple text",
mEditText1.getText());

// Set the clipboard's primary clip.
mClipboard.setPrimaryClip(clip);
}

private void pasteToResult() {
// Gets a handle to the clipboard service.
if (null == mClipboard) {
mClipboard = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
}

String resultString = "";
// 检查剪贴板是否有内容
if (!mClipboard.hasPrimaryClip()) {
Toast.makeText(HelloClipboardMainActivity.this,
"Clipboard is empty", Toast.LENGTH_SHORT).show();
}
else {
ClipData clipData = mClipboard.getPrimaryClip();
int count = clipData.getItemCount();

for (int i = 0; i < count; ++i) {

ClipData.Item item = clipData.getItemAt(i);
CharSequence str = item
.coerceToText(HelloClipboardMainActivity.this);
Log.i("mengdd", "item : " + i + ": " + str);

resultString += str;
}

}
mResultTextView.setText(resultString);
}
}

设计有效的复制粘贴功能

ClipData.Item

coerceToText()

参考资料