声明

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　　农民伯伯：http://over140.blog.51cto.com/

    /**
     * 动态搜索
     */
    private TextWatcher tbxSearch_TextChanged = new TextWatcher() {

//缓存上一次文本框内是否为空
        private boolean isnull = true;

@Override
        public void afterTextChanged(Editable s) {
            if (TextUtils.isEmpty(s)) {
                if (!isnull) {
                    mSearchView.setCompoundDrawablesWithIntrinsicBounds(null,
                            null, mIconSearchDefault, null);
                    isnull = true;
                }
            } else {
                if (isnull) {
                    mSearchView.setCompoundDrawablesWithIntrinsicBounds(null,
                            null, mIconSearchClear, null);
                    isnull = false;
                }
            }
        }

@Override
        public void beforeTextChanged(CharSequence s, int start, int count,
                int after) {
        }

/**
         * 随着文本框内容改变动态改变列表内容
         */
        @Override
        public void onTextChanged(CharSequence s, int start, int before,
                int count) {
            
        }
    };

    private OnTouchListener txtSearch_OnTouch = new OnTouchListener() {
        @Override
        public boolean onTouch(View v, MotionEvent event) {
            switch (event.getAction()) {
            case MotionEvent.ACTION_UP:
                int curX = (int) event.getX();
                if (curX > v.getWidth() - 38
                        && !TextUtils.isEmpty(mSearchView.getText())) {
                    mSearchView.setText("");
                    int cacheInputType = mSearchView.getInputType();// backup  the input type
                    mSearchView.setInputType(InputType.TYPE_NULL);// disable soft input
                    mSearchView.onTouchEvent(event);// call native handler
                    mSearchView.setInputType(cacheInputType);// restore input  type
                    return true;// consume touch even
                }
                break;
            }
            return false;
        }
    };

    private Drawable mIconSearchDefault; // 搜索文本框默认图标
    private Drawable mIconSearchClear; // 搜索文本框清除文本内容图标

@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main)
        
        final Resources res = getResources();
        mIconSearchDefault = res.getDrawable(R.drawable.txt_search_default);
        mIconSearchClear = res.getDrawable(R.drawable.txt_search_clear);
        
        mSearchView = (EditText) findViewById(R.id.txtSearch);
        mSearchView.addTextChangedListener(tbxSearch_TextChanged);
        mSearchView.setOnTouchListener(txtSearch_OnTouch);
    }