androidstdio点击按钮闪退

activity_main.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="请输入消费金额:"
        android:textStyle="bold"
        android:textColor="#000000"
        android:textSize="18sp"
        android:layout_margin="5dp" />
    <EditText
        android:id="@+id/edit_inputcost"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:textStyle="bold"
        android:textSize="30sp"
        android:layout_margin="5dp"
        android:background="#D7a3f5"  />
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="请选择日期："
        android:textStyle="bold"
        android:textColor="#000000"
        android:textSize="18sp"
        android:layout_margin="5dp" />
    <DatePicker
        android:id="@+id/datePicker_birth"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"  />
    <Button
        android:id="@+id/button_search"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_margin="5dp"
        android:background="#ffff00"
        android:text="查询"
        android:textColor="#FFFFFFFF"
        android:textSize="40sp"
        android:textStyle="bold" />










</LinearLayout>

MainActivity

package com.example.firstwork;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.EditText;


public class MainActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        //跳转
        Button btn_search= findViewById(R.id.button_search);
        DatePicker date_birth= findViewById(R.id.datePicker_birth);
        EditText edit_inputcost=findViewById(R.id.edit_inputcost);

        btn_search.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent packageContext;
                Intent intent=new Intent(MainActivity.this,SecondActivity.class);
                //数据传输
                intent.putExtra("costput",edit_inputcost.getText());
                intent.putExtra("year",date_birth.getYear());
                intent.putExtra("yue",date_birth.getMonth());
                intent.putExtra("ri",date_birth.getDayOfMonth());
                startActivity(intent);
            }
        });
        }


    }

activity_second.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".SecondActivity">
    <TextView
        android:id="@+id/textView_getcost"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="显示获取到的消费金额"
        android:textStyle="bold"
        android:textColor="#ffffff"
        android:textSize="20sp"
        android:layout_margin="5dp" />
    <TextView
        android:id="@+id/textView_getbirth"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="显示获取到的日期"
        android:textStyle="bold"
        android:textColor="#ffffff"
        android:textSize="20sp"
        android:layout_margin="5dp"  />
    <TextView
        android:id="@+id/textView_contentzodiac"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="显示打折数字"
        android:textStyle="bold"
        android:textColor="#ffffff"
        android:textSize="20sp"
        android:layout_margin="5dp"  />












</LinearLayout>

SecondActivity

package com.example.firstwork;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.widget.TextView;

import java.text.BreakIterator;

public class SecondActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_second);

        TextView textView_getcost = findViewById(R.id.textView_getcost);
        TextView textView_getbirth = findViewById(R.id.textView_getbirth);
        TextView textView_contentzodiac = findViewById(R.id.textView_contentzodiac);

        int getcost = getIntent().getIntExtra("costput",0);
        int year =getIntent().getIntExtra("year", 0);
        int month= getIntent().getIntExtra("ri", 0);
        int mydate= getIntent().getIntExtra("ri", 0);

        textView_getcost.setText(getcost);
        textView_getbirth.setText("所选日期是" + year + "年" + month + "月" + mydate + "日");

        int[] contant={R.string.六折, R.string.六点五折, R.string.七折, R.string.七点五折, R.string.八折, R.string.八点五折, R.string.九折};
        int i = find(getcost, mydate);
        textView_contentzodiac.setText(contant[i]);
    }

    private int find(int mycost, int myday) {
        int i = 0;
        if(mycost==800&&myday>=1||mycost==1000&&myday<=31){i=0;}
        if(mycost==600&&myday>=1||mycost<800&&myday<=31){i=1;}
        if(mycost==400&&myday>=1||mycost<600&&myday<=31){i=2;}
        if(mycost==200&&myday>=1||mycost<400&&myday<=31){i=3;}
        if(mycost==100&&myday>=1||mycost<200&&myday<=31){i=4;}
        if(mycost==90&&myday>=1||mycost<100&&myday<=31){i=5;}
        if(mycost==0&&myday>=1||mycost<90&&myday<=31){i=6;}
        return i;
    }
}

strings.xml:

<resources>
    <string name="app_name">firstwork</string>
    <string name="六折">打6折</string>
    <string name="六点五折">打6.5折</string>
    <string name="七折">打7折</string>
    <string name="七点五折">打7.5折</string>
    <string name="八折">打8折</string>
    <string name="八点五折">打8.5折</string>
    <string name="九折">打9折</string>
</resources>

代码没有报错，但是第一个界面的查询按钮点击后闪退出去，请问原因在哪里？

闪退无崩溃信息，可以调整下控制台日志输出配置。不设置过滤条件应该就会有崩溃信息。

在 MainActivity 中，您正在尝试获取 EditText 中输入的文本，但是您正在使用 edit_inputcost.getText() 方法来获取文本，该方法返回一个 Editable 对象。然后您尝试将此对象作为 int 值传递给 Intent.putExtra() 方法，这将导致崩溃。

要解决此问题，请将以下行：

intent.putExtra("costput",edit_inputcost.getText());

答案来自 我点评开发社区 https://www.wodianping.com/
更改为：

intent.putExtra("costput",Integer.parseInt(edit_inputcost.getText().toString()));

控制台输入exc 看下错误日志呀