andriod studio 视频app播放器

package com.example.lszs123; import android.graphics.Color; import android.os.Bundle; import android.view.View; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.RelativeLayout; import android.widget.TextView; import androidx.appcompat.app.AppCompatActivity; import com.example.lszs123.fragment.FragmentActivity1; import com.example.lszs123.fragment.FragmentActivity2; import com.example.lszs123.fragment.FragmentActivity3; import com.example.lszs123.fragment.FragmentActivity4; import com.example.lszs123.fragment.FragmentActivity5; public class BottomBarActivity extends AppCompatActivity implements View.OnClickListener{ public int TAG =0; private TextView tv_main_title1;//标题 private TextView tv_back;//返回按钮 private RelativeLayout title_bar; //来自activity_main.xml private RelativeLayout main_body1; private TextView bottom_bar_text_1,bottom_bar_text_2,bottom_bar_text_3,bottom_bar_text_4,bottom_bar_text_5; private ImageView bottom_bar_image_1,bottom_bar_image_2,bottom_bar_image_3,bottom_bar_image_4,bottom_bar_image_5,video1,video2; private LinearLayout bottom_bar; private RelativeLayout bottom_bar_1_btn,bottom_bar_2_btn,bottom_bar_3_btn,bottom_bar_4_btn,bottom_bar_5_btn; private FragmentActivity1 fragment1; private FragmentActivity2 fragment2; private FragmentActivity3 fragment3; private FragmentActivity4 fragment4; private FragmentActivity5 fragment5; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_bottom_bar); initView(); fragment1 = new FragmentActivity1(); fragment2 = new FragmentActivity2(); fragment3 = new FragmentActivity3(); fragment4 = new FragmentActivity4(); fragment5 = new FragmentActivity5(); } @Override public void onClick(View v) { if (TAG ==0){ TAG = 1; switch (v.getId()){ case R.id.bottom_bar_1_btn: getSupportFragmentManager().beginTransaction().add(R.id.fl_container,fragment1).commitAllowingStateLoss(); setSelectStatus(0); break; case R.id.bottom_bar_2_btn: getSupportFragmentManager().beginTransaction().add(R.id.fl_container,fragment2).commitAllowingStateLoss(); setSelectStatus(1); break; case R.id.bottom_bar_3_btn: getSupportFragmentManager().beginTransaction().add(R.id.fl_container,fragment3).commitAllowingStateLoss(); setSelectStatus(2); break; case R.id.bottom_bar_4_btn: getSupportFragmentManager().beginTransaction().add(R.id.fl_container,fragment4).commitAllowingStateLoss(); setSelectStatus(3); break; case R.id.bottom_bar_5_btn: getSupportFragmentManager().beginTransaction().add(R.id.fl_container,fragment5).commitAllowingStateLoss(); setSelectStatus(4); break; } } else if(TAG == 1){ switch (v.getId()){ case R.id.bottom_bar_1_btn: getSupportFragmentManager () .beginTransaction().replace(R.id.fl_container ,fragment1 ) .commitAllowingStateLoss(); setSelectStatus(0); break; case R.id.bottom_bar_2_btn: getSupportFragmentManager () .beginTransaction().replace(R.id.fl_container ,fragment2 ) .commitAllowingStateLoss(); setSelectStatus(1); break; case R.id.bottom_bar_3_btn: getSupportFragmentManager () .beginTransaction().replace(R.id.fl_container ,fragment3 ) .commitAllowingStateLoss(); setSelectStatus(2); break; case R.id.bottom_bar_4_btn: getSupportFragmentManager () .beginTransaction().replace(R.id.fl_container ,fragment4 ) .commitAllowingStateLoss(); setSelectStatus(3); break; case R.id.bottom_bar_5_btn: getSupportFragmentManager () .beginTransaction().replace(R.id.fl_container ,fragment5 ) .commitAllowingStateLoss(); setSelectStatus(4); break; } } } //实例化 private void initView(){ //标题显示 //底部导航栏 main_body1=findViewById(R.id.main_body); bottom_bar_text_1=findViewById(R.id.bottom_bar_text_1); bottom_bar_image_1=findViewById(R.id.bottom_bar_image_1); bottom_bar_text_2=findViewById(R.id.bottom_bar_text_2); bottom_bar_image_2=findViewById(R.id.bottom_bar_image_2); bottom_bar_text_3=findViewById(R.id.bottom_bar_text_3); bottom_bar_image_3=findViewById(R.id.bottom_bar_image_3); bottom_bar_text_4=findViewById(R.id.bottom_bar_text_4); bottom_bar_image_4=findViewById(R.id.bottom_bar_image_4); bottom_bar_text_5=findViewById(R.id.bottom_bar_text_5); bottom_bar_image_5=findViewById(R.id.bottom_bar_image_5); //包含底部 android:id="@+id/main_bottom_bar" bottom_bar=findViewById(R.id.bottom_bar); //private RelativeLayout bottom_bar_1_btn; bottom_bar_1_btn=findViewById(R.id.bottom_bar_1_btn); bottom_bar_2_btn=findViewById(R.id.bottom_bar_2_btn); bottom_bar_3_btn=findViewById(R.id.bottom_bar_3_btn); bottom_bar_4_btn=findViewById(R.id.bottom_bar_4_btn); bottom_bar_5_btn=findViewById(R.id.bottom_bar_5_btn); //添加点击事件 //技巧 //tv_back.setVisibility(View.GONE); bottom_bar_1_btn.setOnClickListener(this); bottom_bar_2_btn.setOnClickListener(this); bottom_bar_3_btn.setOnClickListener(this); bottom_bar_4_btn.setOnClickListener(this); bottom_bar_5_btn.setOnClickListener(this); } private void setSelectStatus(int index) { switch (index){ case 0: //图片点击选择变换图片，颜色的改变，其他变为原来的颜色，并保持原有的图片 bottom_bar_image_1.setImageResource(R.drawable.ic_home_selected); bottom_bar_text_1.setTextColor(Color.parseColor("#0097F7")); //其他的文本颜色不变 bottom_bar_text_2.setTextColor(Color.parseColor("#666666")); bottom_bar_image_2.setImageResource(R.drawable.ic_find); bottom_bar_text_3.setTextColor(Color.parseColor("#666666")); bottom_bar_image_3.setImageResource(R.drawable.ic_kind); bottom_bar_text_4.setTextColor(Color.parseColor("#666666")); bottom_bar_image_4.setImageResource(R.drawable.ic_msg); bottom_bar_text_5.setTextColor(Color.parseColor("#666666")); //图片也不变 bottom_bar_image_5.setImageResource(R.drawable.ic_mine); break; case 1: //图片点击选择变换图片，颜色的改变，其他变为原来的颜色，并保持原有的图片 bottom_bar_image_1.setImageResource(R.drawable.ic_home); bottom_bar_text_1.setTextColor(Color.parseColor("#666666")); bottom_bar_image_2.setImageResource(R.drawable.ic_find_selected); bottom_bar_text_2.setTextColor(Color.parseColor("#0097F7")); bottom_bar_image_3.setImageResource(R.drawable.ic_kind); bottom_bar_text_