Android提供了ClipbroadManager,来方便开发者使用剪切板,我们可以利用它,实现TextView的文字复制功能。做到一处复制,处处使用。
下面就是代码,代码不多,便于掌握
package com.example.cliptextview;
/**
* @author Arthur Lee
* @time 07/20/2014
* */
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.ClipboardManager;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnLongClickListener;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends Activity {
TextView text;
Button button;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button = (Button)findViewById(R.id.button);
button.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Intent intent = new Intent(MainActivity.this,SecondActivity.class);
startActivity(intent);
finish();
}
});
text = (TextView)findViewById(R.id.text);
text.setText("this is a classic saying:the quick brown fox jumps to a lazy dog");
//允许文本框可输入大幅文字
text.setSingleLine(false);
//设置长按监听事件
text.setOnLongClickListener(new OnLongClickListener() {
@Override
public boolean onLongClick(View arg0) {
// TODO Auto-generated method stub
copy(text.getText().toString());
return true;
}
});
}
public void copy(String info){
/**
* 需要注意的是,ClipboardManager只有在api11后才提供服务,使用时注意API版本*/
//开启剪切板服务
ClipboardManager cm = (ClipboardManager) getSystemService(CLIPBOARD_SERVICE);
//将文本框中的数据添加到剪切板上
cm.setText(info);
//获取剪切板数据
Toast.makeText(MainActivity.this, "剪切成功:"+cm.getText(), Toast.LENGTH_LONG).show();
}
}
package com.example.cliptextview;
/**
* @author Arthur Lee
* @time 07/20/2014
* */
import android.app.Activity;
import android.content.ClipboardManager;
import android.os.Bundle;
import android.widget.TextView;
public class SecondActivity extends Activity{
TextView text;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.second);
ClipboardManager cm = (ClipboardManager) getSystemService(CLIPBOARD_SERVICE);
text = (TextView)findViewById(R.id.textView2);
text.setText("获得当前剪切板中的数据:"+cm.getText());
}
}
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<TextView
android:id="@+id/text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="" />
<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/text"
android:layout_centerHorizontal="true"
android:layout_marginTop="68dp"
android:text="跳转" />
</RelativeLayout>
效果图如下: