[移动开发]Android-系统服务-ClipboardManager

需求

需求1：写入剪切板

需求2：读取剪切板

需求3：监视剪切板状态

接口

ClipboardManager ?|? Android Developers

java.lang.Object
? ???? ?android.text.ClipboardManager
??? ? ? ??? ?android.content.ClipboardManager

• Public methods
  • public void setPrimaryClip (ClipData clip)
  • public void setText (CharSequence text)
  • public ClipData getPrimaryClip ()
  • public CharSequence getText ()
  • public boolean hasPrimaryClip ()
  • public ClipDescription getPrimaryClipDescription ()

ClipData ?|? Android Developers

java.lang.Object
? ???? ?android.content.ClipData

• Public methods
  • public static ClipData newPlainText (CharSequence label, CharSequence text)

ClipDescription ?|? Android Developers

java.lang.Object
? ???? ?android.content.ClipDescription

• Public methods
  • public boolean hasMimeType (String mimeType)

ClipData.Item ?|? Android Developers

java.lang.Object
? ???? ?android.content.ClipData.Item

备注：复制和粘贴 ?|? Android 开发者 ?|? Android Developers

权限

AndroidManifest.xml - OpenGrok cross reference for /frameworks/base/core/res/AndroidManifest.xml

5557?    <!-- @hide Permission that allows background clipboard access.
5558?         <p>Not for use by third-party applications. -->
5559?    <permission android:name="android.permission.READ_CLIPBOARD_IN_BACKGROUND"
5560?        android:protectionLevel="signature" />

5767?    <!-- @SystemApi Allows the holder to set the source of the data when setting a clip on the
5768?         clipboard.
5769?         @hide -->
5770?    <permission android:name="android.permission.SET_CLIP_SOURCE"
5771?                android:protectionLevel="signature|recents" />

示例

package com.learn_android.clipboard;

import android.content.ClipData;
import android.content.ClipboardManager;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

import androidx.appcompat.app.AppCompatActivity;

public class MainActivity extends AppCompatActivity implements View.OnClickListener {

    private EditText et_write = null;
    private TextView tv_read = null;

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

        et_write = (EditText) findViewById(R.id.et_write);
        tv_read = (TextView) findViewById(R.id.tv_read);

        Button btn_clip_write = (Button) findViewById(R.id.btn_clip_write);
        Button btn_clip_read = (Button) findViewById(R.id.btn_clip_read);

        btn_clip_write.setOnClickListener(this);
        btn_clip_read.setOnClickListener(this);
    }

    @Override
    public void onClick(View view) {
        switch (view.getId()) {
            case R.id.btn_clip_write:
                onClickClipWrite();
                break;
            case R.id.btn_clip_read:
                onClickClipRead();
                break;
            default:
                ;
        }
    }

    private void onClickClipWrite() {
        String msg = et_write.getText().toString();
        ClipboardManager clipboardManager = (ClipboardManager) getSystemService(CLIPBOARD_SERVICE);
        ClipData clipData = ClipData.newPlainText("msg", msg);
        clipboardManager.setPrimaryClip(clipData);
        Toast.makeText(this, "写入完成", Toast.LENGTH_SHORT).show();
    }

    private void onClickClipRead() {
        ClipboardManager clipboardManager = (ClipboardManager) getSystemService(CLIPBOARD_SERVICE);
        ClipData clipData = clipboardManager.getPrimaryClip();
        ClipData.Item item = clipData.getItemAt(0);
        tv_read.setText(item.getText().toString());
        Toast.makeText(this, "读取完成", Toast.LENGTH_SHORT).show();
    }

}

参考资料