package com.dayu.pipirrapp.activity;
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import android.os.Bundle;
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import android.view.KeyEvent;
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import android.view.LayoutInflater;
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import android.view.MotionEvent;
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import android.view.View;
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import android.widget.Toast;
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import androidx.appcompat.app.AppCompatActivity;
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import androidx.fragment.app.Fragment;
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import com.dayu.pipirrapp.adapter.TabAdapter;
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import com.dayu.pipirrapp.databinding.ActivityMainBinding;
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import com.dayu.pipirrapp.fragment.MainFragment;
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import com.dayu.pipirrapp.fragment.MapFragment;
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import com.dayu.pipirrapp.fragment.MyFragment;
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import java.util.ArrayList;
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import java.util.List;
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/**
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*
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*/
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public class MainActivity extends AppCompatActivity {
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ActivityMainBinding binding;
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List<Fragment> mFragment = new ArrayList<>();
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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binding = ActivityMainBinding.inflate(LayoutInflater.from(this));
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MapFragment mapFragment = new MapFragment();
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setContentView(binding.getRoot());
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mFragment.add(mapFragment);
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mFragment.add(new MainFragment());
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mFragment.add(new MyFragment());
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initTab();
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}
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private void initTab() {
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TabAdapter adapter = new TabAdapter(getSupportFragmentManager(), mFragment);
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binding.viewPager.setAdapter(adapter);
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binding.viewPager.setPagingEnabled(false);
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//设置缓存view 的个数
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binding.viewPager.setOffscreenPageLimit(3);
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// 将 ViewPager 与 TabLayout 关联
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binding.tabLayout.setupWithViewPager(binding.viewPager);
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}
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long mExitTime;
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//点击两次退出程序 有时间间隔 间隔内点击则退出程序 否则 则提示
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@Override
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public boolean onKeyDown(int keyCode, KeyEvent event) {
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if (keyCode == KeyEvent.KEYCODE_BACK) {
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if ((System.currentTimeMillis() - mExitTime) > 2000) {
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Toast.makeText(MainActivity.this, "再按一次退出程序", Toast.LENGTH_SHORT).show();
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mExitTime = System.currentTimeMillis();
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} else {
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MainActivity.this.finish();
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}
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return true;
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}
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return super.onKeyDown(keyCode, event);
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}
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}
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