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如何在Android中使用EditText实现批量搜索关键词

如何在Android中使用EditText实现批量搜索关键词？相信很多没有经验的人对此束手无策，为此本文总结了问题出现的原因和解决方法，通过这篇文章希望你能解决这个问题。

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当用户在EditText中输入内容，点击搜索按钮的时候，输入的内容能够高亮，然后添加到输入的容器中。删除的时候，能够将容器中的关键词逐一删除。附上代码：

SearchEditText.java

package com.jackie.searchresultedittext; 
 
import android.content.Context; 
import android.graphics.Color; 
import android.util.AttributeSet; 
import android.view.Gravity; 
import android.view.KeyEvent; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.inputmethod.EditorInfo; 
import android.widget.EditText; 
import android.widget.LinearLayout; 
import android.widget.RelativeLayout; 
import android.widget.TextView; 
 
/** 
 * Created by Jackie on 2017/2/21. 
 * 用于搜索的EditText 
 */ 
public class SearchEditText extends RelativeLayout { 
  private Context mContext; 
  private LayoutInflater mInflater; 
  private View mView; 
  private LinearLayout mContainer; 
  private EditText mEditText = null; 
 
  public SearchEditText(Context context) { 
    this(context, null); 
  } 
 
  public SearchEditText(Context context, AttributeSet attrs) { 
    this(context, attrs, 0); 
  } 
 
  public SearchEditText(Context context, AttributeSet attrs, int defStyleAttr) { 
    super(context, attrs, defStyleAttr); 
    init(context); 
  } 
   
  private OnSearchChangeListener mSearchChangeListener; 
 
  public interface OnSearchChangeListener { 
    void searchChange(String s); 
    void removeView(int position); 
  } 
 
  public void setOnSearchChangeListener(OnSearchChangeListener searchChangeListener) { 
    mSearchChangeListener = searchChangeListener; 
  } 
 
  private void init(Context context) { 
    mContext = context; 
    mInflater = LayoutInflater.from(mContext); 
    mView = mInflater.inflate(R.layout.search_edittext_layout, null); 
    LayoutParams params = new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT); 
    params.leftMargin = 15; 
    params.rightMargin = 15; 
    addView(mView, params); 
     
    mContainer = (LinearLayout) mView.findViewById(R.id.layout); 
    mEditText = (EditText) mView.findViewById(R.id.edittext); 
    mEditText.setOnKeyListener(new OnKeyListener() { 
      @Override 
      public boolean onKey(View v, int keyCode, KeyEvent event) { 
        if (keyCode == KeyEvent.KEYCODE_DEL) { 
          if (isNotFastClick()) { 
            if (mEditText.getText().toString().length() > 0) { 
              String str = mEditText.getText().toString(); 
              str = str.substring(0, str.length() - 1); 
              mEditText.setText(str); 
              mEditText.setSelection(str.length()); 
            } else { 
              if (mContainer.getChildCount() > 0) { 
                if (mSearchChangeListener != null) { 
                  mSearchChangeListener.removeView(mContainer.getChildCount() - 1); 
                } 
 
                mContainer.removeViewAt(mContainer.getChildCount() - 1); 
              } 
            } 
          } 
        } 
 
        return true; 
      } 
    }); 
 
    mEditText.setOnEditorActionListener(new TextView.OnEditorActionListener() { 
      @Override 
      public boolean onEditorAction(TextView v, int actionId, KeyEvent event) { 
        if (actionId == EditorInfo.IME_ACTION_SEARCH) { 
 
          if (mEditText.getText().toString().trim().equals("")) { 
            return true; 
          } 
 
          TextView textView = new TextView(mContext); 
          textView.setText(mEditText.getText().toString().trim()); 
          textView.setTextSize(14); 
          textView.setTextColor(Color.parseColor("#dfe0e0")); 
          textView.setPadding(10, 0, 10, 0); 
          textView.setBackgroundResource(R.drawable.shape_edittext_round_bg); 
          textView.setGravity(Gravity.CENTER); 
          LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT); 
          params.leftMargin = 10; 
          textView.setLayoutParams(params); 
 
          if (mSearchChangeListener != null) { 
            mSearchChangeListener.searchChange(mEditText.getText().toString().trim()); 
          } 
 
          mEditText.setText(""); 
          mContainer.addView(textView); 
        } 
 
        return true; 
      } 
    }); 
  } 
 
  public EditText getEditText() { 
    return mEditText; 
  } 
  public LinearLayout getContainer() { 
    return mContainer; 
  } 
 
  long lastClickTime = 0; 
 
  public boolean isNotFastClick() { 
    long time = System.currentTimeMillis(); 
    if (time - lastClickTime >= 300) { 
      lastClickTime = time; 
      return true; 
    } else { 
      return false; 
    } 
  } 
}

search_edittext_layout.xml

<?xml version="1.0" encoding="utf-8"?>

shape_edittext_round_bg.xml

<?xml version="1.0" encoding="utf-8"?>

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