继承了LinearLayout重写dispatchTouchEvent的问题

2014-11-12 04:43:36 417 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

ICCompiler II实战：从NDM生成到APR流程的完整避坑指南本文是一份针对ICCompiler II（ICC II）后端物理实现流程的实战避坑指南。文章详细解析了从NDM库生成、设计初始化、布局规划到时钟树综合与布线的完整APR流程，重点分享了各环节的常见陷阱、精细化配置命令与调试经验，旨在帮助工程师高效达成PPA目标，确保设计一次成功。阅读详情

package app.example.draglinearlayout;



import android.annotation.SuppressLint;

import android.content.Context;

import android.os.Handler;

import android.os.Vibrator;

import android.util.AttributeSet;

import android.util.Log;

import android.view.MotionEvent;

import android.widget.LinearLayout;



public class DragLinearLayout extends LinearLayout {



	private Vibrator vibrator;

	/**

	 * 是否可以拖拽，默认不可以

	 */

	private boolean isDrag;

	/**

	 * 用来处理是否为长按的Runnable

	 */

	private Runnable onLongRunnable = new Runnable() {



		@Override

		public void run() {

			isDrag = true; // 设置可以拖拽

			vibrator.vibrate(100); // 震动一下

			// 隐藏自己

			// DragLinearLayout.this.setVisibility(View.INVISIBLE);

		}

	};

	private Handler handler = new Handler();



	@SuppressLint("NewApi")

	public DragLinearLayout(Context context, AttributeSet attrs) {

		super(context, attrs);

		vibrator = (Vibrator) context

				.getSystemService(Context.VIBRATOR_SERVICE);

	}



	@Override

	public boolean dispatchTouchEvent(MotionEvent ev) {

		switch (ev.getAction()) {

		case MotionEvent.ACTION_DOWN:

			// 使用Handler延迟dragResponseMS执行onLongRunnable

			handler.postDelayed(onLongRunnable, 1000);



			break;

		case MotionEvent.ACTION_MOVE:

			Log.d("2", "*************");

			break;

		case MotionEvent.ACTION_UP:

			Log.d("1", "*************");

			break;

		}

		return super.dispatchTouchEvent(ev);

	}



}

<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" >



    <app.example.draglinearlayout.DragLinearLayout

        android:layout_width="200dp"

        android:layout_height="300dp"

        android:background="#FAFDAD" />



</RelativeLayout>