在寫這個博客之前,就認識到scrollview嵌套listview的衝突問題,只是自己沒有遇到過,且在百度上有各種解決的方法,但是很多沒有解決到我的問題,於是乎在項目中自己嘗試瞭解決的方法,分享給大家,話不多說,直接上代碼
用到的東西,自定義listview、scrollview佈局參數的添加
1.自定義listview
package fho.nak.jeekup.okhtt; import android.content.Context; import android.util.AttributeSet; import android.widget.ListView; /** * @創建者 Jimven * @創建時間 2017/8/4/0004 17:45 */ public class MyListView extends ListView { public MyListView(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); } public MyListView(Context context, AttributeSet attrs) { super(context, attrs); } public MyListView(Context context) { super(context); } @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { //設置爲Integer.MAX_VALUE>>2 是listview全部展開 int measureSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE>>2, MeasureSpec.AT_MOST); //設置爲900是設置scrollview的滑動高度只能有900實現可以滑動的效果 int measureSpec1 = MeasureSpec.makeMeasureSpec(900, MeasureSpec.AT_MOST); super.onMeasure(widthMeasureSpec, measureSpec1); } }
2.佈局設置,在scrollview中添加以下兩個參數
android:focusableInTouchMode="true" android:focusable="true"
佈局文件
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:orientation="vertical" android:layout_height="match_parent"> <ScrollView android:id="@+id/sllv_my" android:layout_width="match_parent" android:layout_height="match_parent" android:focusable="true" android:focusableInTouchMode="true"> <fho.nak.jeekup.okhtt.MyListView android:id="@+id/lv_my" android:layout_width="match_parent" android:layout_height="20dp"> </fho.nak.jeekup.okhtt.MyListView> </ScrollView> </LinearLayout>
3.在代碼中
package fho.nak.jeekup.okhtt; import android.app.Activity; import android.os.Bundle; import android.view.MotionEvent; import android.view.View; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.ListView; import android.widget.ScrollView; import android.widget.Toast; import java.util.ArrayList; import java.util.List; /** * @創建者 Jimven * @創建時間 2017/8/5/0005 1:38 */ public class MyActivity extends Activity { //定義控件 private ListView lv; private ScrollView scrollView; //定義一個集合保存數據 private List<String> list = new ArrayList<String>(); //定義一個adapter private ArrayAdapter mArrayAdapter; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_my); initView(); initData(); initEvent(); } //初始化控件 private void initView() { lv = (ListView) findViewById(R.id.lv_my); scrollView = (ScrollView) findViewById(R.id.sllv_my); } //初始化數據 private void initData() { for (int i = 0; i < 50; i++) { list.add("模擬數據" + i); } mArrayAdapter = new ArrayAdapter(getApplicationContext(), android.R.layout.simple_list_item_1, list); lv.setAdapter(mArrayAdapter); } //初始化事件 private void initEvent() { scrollView.smoothScrollTo(0, 0); lv.setOnTouchListener(new View.OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent event) { if (event.getAction() == MotionEvent.ACTION_UP) { scrollView.requestDisallowInterceptTouchEvent(false); } else { scrollView.requestDisallowInterceptTouchEvent(true); } return false; } }); //listview條目點擊事件 lv.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> adapterView, View view, int position, long l) { Toast.makeText(MyActivity.this,"你點擊了" + list.get(position),Toast.LENGTH_SHORT).show(); } }); } }
希望以上分享能解決大家的問題,歡迎大家交流,探討