6.12

今日学习总结

学习时间1.5h代码如下

package com.app.chapter04;

import android.os.Bundle;

import androidx.activity.EdgeToEdge;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.graphics.Insets;
import androidx.core.view.ViewCompat;
import androidx.core.view.WindowInsetsCompat;

public class ActionUriActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        EdgeToEdge.enable(this);
        setContentView(R.layout.activity_action_uri);

    }
}

package com.app.chapter04;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;

import androidx.activity.EdgeToEdge;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.graphics.Insets;
import androidx.core.view.ViewCompat;
import androidx.core.view.WindowInsetsCompat;

public class JumpFirstActivity extends AppCompatActivity implements View.OnClickListener {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        EdgeToEdge.enable(this);
        setContentView(R.layout.activity_jump_first);
        findViewById(R.id.btn_jump_second).setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {
        //创建一个意图对象，准备跳转到指定的活动界面
        Intent intent =new Intent(this,JumpSecondActivity.class);
        //栈中存在待跳转的活动实例时，则重新创建该活动的实例，并清除原实例上方的所有实例
        intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        startActivity(intent);

    }
}