dispatchTouchEvent-向下分发操作

onInterceptTouchEvent-拦截操作（1.Activity和TextView没有，Layout有；2.true-拦截、false-不拦截）

onTouchEvent-处理操作（true-处理、false-不处理）

1.textview点击事件

public class MainActivity extends AppCompatActivity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);    }    @Override    public boolean dispatchTouchEvent(MotionEvent ev) {        Log.d("lenve", "MainActivity - dispatchTouchEvent: ");        return super.dispatchTouchEvent(ev);    }    @Override    public boolean onTouchEvent(MotionEvent event) {        Log.d("lenve", "MainActivity - onTouchEvent: ");        return super.onTouchEvent(event);    }}

public class MyLinearLayout extends LinearLayout {    public MyLinearLayout(Context context) {        super(context);    }    public MyLinearLayout(Context context, AttributeSet attrs) {        super(context, attrs);    }    public MyLinearLayout(Context context, AttributeSet attrs, int defStyleAttr) {        super(context, attrs, defStyleAttr);    }    //事件分发    @Override    public boolean dispatchTouchEvent(MotionEvent ev) {        Log.d("lenve", "MyLinearLayout - dispatchTouchEvent: ");        return super.dispatchTouchEvent(ev);    }    //事件拦截    //1.返回值为false表示不拦截事件，事件继续向下分发给它的子控件    //2.返回值为true表示拦截事件，拦截之后自己处理    @Override    public boolean onInterceptTouchEvent(MotionEvent ev) {        boolean b = super.onInterceptTouchEvent(ev);        Log.d("lenve", "MyLinearLayout - onInterceptTouchEvent: " + b);        return b;    }    //事件处理    //1.false表示该事件未处理，向上分发给它的父容器或者Activity    //2.true表示该事件已处理，事件到此结束    @Override    public boolean onTouchEvent(MotionEvent event) {        boolean b = super.onTouchEvent(event);        Log.d("lenve", "MyLinearLayout - onTouchEvent: " + b);        return b;    }}

public class MyTextView extends TextView {    public MyTextView(Context context) {        super(context);    }    public MyTextView(Context context, AttributeSet attrs) {        super(context, attrs);    }    public MyTextView(Context context, AttributeSet attrs, int defStyleAttr) {        super(context, attrs, defStyleAttr);    }    @Override    public boolean dispatchTouchEvent(MotionEvent event) {        Log.d("lenve", "MyTextView - dispatchTouchEvent: ");        return super.dispatchTouchEvent(event);    }    @Override    public boolean onTouchEvent(MotionEvent event) {        Log.d("lenve", "MyTextView - onTouchEvent: ");        return super.onTouchEvent(event);    }}

结果：

//按下04-25 12:44:10.339 27977-27977/com.example.administrator.touchevent D/lenve: MainActivity - dispatchTouchEvent: 04-25 12:44:10.339 27977-27977/com.example.administrator.touchevent D/lenve: MyLinearLayout - dispatchTouchEvent: 04-25 12:44:10.339 27977-27977/com.example.administrator.touchevent D/lenve: MyLinearLayout - onInterceptTouchEvent: 04-25 12:44:10.339 27977-27977/com.example.administrator.touchevent D/levne: MyTestView - dispatchTouchEvent: 04-25 12:44:10.339 27977-27977/com.example.administrator.touchevent D/lenve: MyTestView - onTouchEvent: 04-25 12:44:10.339 27977-27977/com.example.administrator.touchevent D/lenve: MyLinearLayout - onTouchEvent: 04-25 12:44:10.339 27977-27977/com.example.administrator.touchevent D/lenve: MainActivity - onTouchEvent: //松开04-25 12:44:11.103 27977-27977/com.example.administrator.touchevent D/lenve: MainActivity - dispatchTouchEvent: 04-25 12:44:11.103 27977-27977/com.example.administrator.touchevent D/lenve: MainActivity - onTouchEvent:

2.listview点击事件

public class MainActivity extends AppCompatActivity {    private List
     
       list;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        ListView listView = (ListView) findViewById(R.id.lv);        initData();        final ArrayAdapter
      
        adapter = new ArrayAdapter
       
        (this, android.R.layout.simple_list_item_1, list);        listView.setAdapter(adapter);        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {            @Override            public void onItemClick(AdapterView
         parent, View view, int position, long id) {                Toast.makeText(MainActivity.this, list.get(position), Toast.LENGTH_SHORT).show();            }        });        listView.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {            @Override            public boolean onItemLongClick(AdapterView
         parent, View view, int position, long id) {                list.remove(position);                adapter.notifyDataSetChanged();                return true;            }        });    }    private void initData() {        list = new ArrayList<>();        for (int i = 0; i < 30; i++) {            list.add("李四：" + i);        }    }}
       
      
     

注：按下后，setOnItemLongClickListener先执行，松开后，执行onItemClick。设置setOnItemLongClickListener返回true，松开后就不会执行onItemClick

3.viewpager滑动

viewPager.setOnTouchListener(new View.OnTouchListener() {    @Override    public boolean onTouch(View v, MotionEvent event) {        //让ViewPager的父容器不要拦截滑动事件        viewPager.getParent().requestDisallowInterceptTouchEvent(true);        //这里如果返回true则ViewPager的滑动事件会被屏蔽        return false;    }});

结果：

第一页的广告滑到最右边再滑不会切换到第二页