Android 复制粘贴对话框弹出监听实现

长按文本框或者webview界面，会弹出复制粘贴剪切等对话框，但是目前好多厂商都是自己写的控件，先说一下对系统的对话框进行监听的情况。

这里是为了监听对话框来对自定义view进行高度的处理，对华为三星等手机做个适配，自定义了一个view，在onLayout方法中根据自定义的view在屏幕中的位置变化来进行判断复制粘贴对话框的弹出和隐藏。代码：

@Override
	protected void onLayout(boolean changed, int left, int top, int right,
			int bottom) {
		super.onLayout(changed, left, top, right, bottom);
		int[] a = new int[2];

		getLocationInWindow(a);
		int currentY = a[1];
		if (android.os.Build.VERSION.SDK_INT > 18) {
			int height = getHeight();
			// TODO 大于0可能会有问题
			if (currentY > 0 && height != 0) {
				post(new Runnable() {
					@Override
					public void run() {
						ViewGroup.LayoutParams params = getLayoutParams();
						params.height = 0;
						setLayoutParams(params);
					}
				});
			} else if(currentY == 0 && height == 0){
				post(new Runnable() {
					@Override
					public void run() {
						ViewGroup.LayoutParams params = getLayoutParams();
						params.height = AppEnv.STATUS_BAR_HEIGHT;
						setLayoutParams(params);
					}
				});
			}
		}
	}

第二种方法，是在activity中进行复制粘贴对话框的弹出和隐藏的回调方法，此方法我本人还未层进行实践，核心代码贴上来日后再做个demo

public void onActionModeStarted(ActionMode mode) {
System.out.println("----------onActionModeStarted----------");
};

@Override
public void onActionModeFinished(ActionMode mode) {
System.out.println("----------onActionModeFinished----------");
super.onActionModeFinished(mode);
}

然后就是自定义的实现了，自己写了个小demo，以及文本框和webview自由选择复制这一块有点复杂，还未实现，贴一下自己的demo。

xml就是一个EditText，不贴了，

弹框的xml布局为：

下面是代码：

package soft.sxlc.com.showhidesoftkey;

import android.content.Context;
import android.content.ClipboardManager;
import android.graphics.drawable.BitmapDrawable;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.text.Editable;
import android.text.TextUtils;
import android.util.TimeUtils;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;
import android.view.WindowManager;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.ListView;
import android.widget.PopupWindow;
import android.widget.Toast;

import java.util.Collections;

public class MainActivity extends AppCompatActivity {

    private EditText et;

    private PopupWindow popupWindow;
    private View view;
    private TextView copy;
    private TextView selectAll;
    private TextView cut;
    private TextView paste;
    private TextView select;

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

        et = (EditText) findViewById(R.id.et);
        initListener();
    }

    //TODO  初始化长按点击监听
    private void initListener() {
        et.setOnLongClickListener(new View.OnLongClickListener() {
            @Override
            public boolean onLongClick(View v) {
                if(!TextUtils.isEmpty(et.getText().toString())){
                    Toast.makeText(MainActivity.this, "long click", Toast.LENGTH_SHORT).show();
                    showPopWindow();
                }
                return true;
            }
        });
    }

    private void showPopWindow() {
        if (popupWindow == null) {
            LayoutInflater layoutInflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            view = layoutInflater.inflate(R.layout.view_clipboard_popu, null);
            final ClipboardManager clip = (ClipboardManager)getSystemService(Context.CLIPBOARD_SERVICE);

            //TODO 设置点击监听实现相应的处理。
            copy = (TextView) view.findViewById(R.id.copy);
            selectAll = (TextView) view.findViewById(R.id.select_all);
            cut = (TextView) view.findViewById(R.id.cut);
            paste = (TextView) view.findViewById(R.id.paste);
            select = (TextView) view.findViewById(R.id.select);

            //TODO 复制点击事件
            copy.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    Toast.makeText(MainActivity.this, "已复制到粘贴板", Toast.LENGTH_SHORT).show();
                    clip.setText(et.getText().toString());
                    popupWindow.dismiss();
                }
            });

            //TODO 粘贴点击事件
            paste.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    Toast.makeText(MainActivity.this, "粘贴好了", Toast.LENGTH_SHORT).show();
                    int index = et.getSelectionStart();
                    Editable editable = et.getText();
                    editable.insert(index, clip.getText().toString());
                    //et.setText(clip.getText());
                    popupWindow.dismiss();
                }
            });
            //TODO 剪切点击事件
            cut.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    Toast.makeText(MainActivity.this, "我剪", Toast.LENGTH_SHORT).show();
                    clip.setText(et.getText().toString());
                    et.setText("");
                    popupWindow.dismiss();
                }
            });
            //TODO 全选点击事件
            selectAll.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    Toast.makeText(MainActivity.this, "全部选中", Toast.LENGTH_SHORT).show();
                    et.selectAll();
                }
            });
            //TODO 自由选择的点击事件
            select.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    Toast.makeText(MainActivity.this, "选择", Toast.LENGTH_SHORT).show();

                }
            });

            popupWindow = new PopupWindow(view, 500, 80);
        }

        //TODO 弹框的一些设置   位置  点击事件等
        popupWindow.setFocusable(true);
        popupWindow.setOutsideTouchable(true);
        popupWindow.showAtLocation(et,0,20,300);
    }
}

自由选择这块以后再研究了。。。。。。。。。。。。。。。。。。。。。。。。。。