需求描述： 输入姓名，年龄，性别之后 计算相应的人品
效果展示
代码详情
布局 activity_main.xml<?xml version="1.0" encoding="utf-8"?><android.support.constraint.ConstraintLayout xmlns:android="/apk/res/android"xmlns:app="/apk/res-auto"xmlns:tools="/tools"android:layout_width="match_parent"android:layout_height="match_parent"tools:context=".MainActivity"><EditTextandroid:id="@+id/editText"android:layout_width="0dp"android:layout_height="wrap_content"android:layout_marginStart="8dp"android:layout_marginTop="8dp"android:layout_marginEnd="8dp"android:ems="10"android:hint="姓名"android:inputType="textPersonName"app:layout_constraintEnd_toEndOf="parent"app:layout_constraintStart_toStartOf="parent"app:layout_constraintTop_toTopOf="parent" /><EditTextandroid:id="@+id/editText2"android:layout_width="0dp"android:layout_height="wrap_content"android:layout_marginStart="8dp"android:layout_marginTop="30dp"android:layout_marginEnd="8dp"android:ems="10"android:hint="年龄"android:inputType="textPersonName"app:layout_constraintEnd_toEndOf="parent"app:layout_constraintHorizontal_bias="0.0"app:layout_constraintStart_toStartOf="parent"app:layout_constraintTop_toBottomOf="@+id/editText" /><RadioGroupandroid:id="@+id/radioGroup"android:layout_width="0dp"android:layout_height="wrap_content"android:layout_marginStart="8dp"android:layout_marginTop="30dp"android:layout_marginEnd="8dp"android:orientation="horizontal"app:layout_constraintEnd_toEndOf="parent"app:layout_constraintStart_toStartOf="parent"app:layout_constraintTop_toBottomOf="@+id/editText2"><RadioButtonandroid:id="@+id/radioButton"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_weight="1"android:checked="true"android:text="男" /><RadioButtonandroid:id="@+id/radioButton2"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_weight="1"android:text="女" /><RadioButtonandroid:id="@+id/radioButton3"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_weight="1"android:text="未知" /></RadioGroup><Buttonandroid:id="@+id/button"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_marginStart="8dp"android:layout_marginTop="30dp"android:layout_marginEnd="8dp"android:text="计算"app:layout_constraintEnd_toEndOf="parent"app:layout_constraintHorizontal_bias="0.0"app:layout_constraintStart_toStartOf="parent"app:layout_constraintTop_toBottomOf="@+id/radioGroup"android:onClick="click"/></android.support.constraint.ConstraintLayout>
activity_result.xml
<?xml version="1.0" encoding="utf-8"?><android.support.constraint.ConstraintLayout xmlns:android="/apk/res/android"xmlns:app="/apk/res-auto"xmlns:tools="/tools"android:layout_width="match_parent"android:layout_height="match_parent"tools:context=".ResultActivity"><TextViewandroid:id="@+id/textView"style="@style/LeftKey"android:layout_marginStart="8dp"android:text="姓名"app:layout_constraintStart_toStartOf="parent"app:layout_constraintTop_toTopOf="parent" /><TextViewandroid:id="@+id/textView2"style="@style/RightVal"android:layout_width="0dp"android:layout_marginStart="8dp"android:layout_marginEnd="8dp"android:gravity="center_vertical"app:layout_constraintEnd_toEndOf="parent"app:layout_constraintStart_toEndOf="@+id/textView"app:layout_constraintTop_toTopOf="parent"tools:text="teeee" /><TextViewandroid:id="@+id/textView3"style="@style/LeftKey"android:layout_marginStart="8dp"android:text="年龄"app:layout_constraintStart_toStartOf="parent"app:layout_constraintTop_toBottomOf="@+id/textView" /><TextViewandroid:id="@+id/textView4"style="@style/RightVal"android:layout_width="0dp"android:layout_marginStart="8dp"android:layout_marginEnd="8dp"app:layout_constraintEnd_toEndOf="parent"app:layout_constraintStart_toEndOf="@+id/textView3"app:layout_constraintTop_toBottomOf="@+id/textView2" /><TextViewandroid:id="@+id/textView5"style="@style/LeftKey"android:layout_marginStart="8dp"android:text="性别"app:layout_constraintStart_toStartOf="parent"app:layout_constraintTop_toBottomOf="@+id/textView3" /><TextViewandroid:id="@+id/textView6"style="@style/RightVal"android:layout_width="0dp"android:layout_marginStart="8dp"android:layout_marginEnd="8dp"app:layout_constraintEnd_toEndOf="parent"app:layout_constraintStart_toEndOf="@+id/textView5"app:layout_constraintTop_toBottomOf="@+id/textView4" /><TextViewandroid:id="@+id/textView7"style="@style/LeftKey"android:layout_marginStart="8dp"android:text="分数"app:layout_constraintStart_toStartOf="parent"app:layout_constraintTop_toBottomOf="@+id/textView5" /><TextViewandroid:id="@+id/textView8"style="@style/RightVal"android:layout_width="0dp"android:layout_marginStart="8dp"android:layout_marginEnd="8dp"app:layout_constraintEnd_toEndOf="parent"app:layout_constraintStart_toEndOf="@+id/textView7"app:layout_constraintTop_toBottomOf="@+id/textView6" /><TextViewandroid:id="@+id/textView9"style="@style/LeftKey"android:gravity="start"android:padding="10dp"android:layout_width="0dp"android:layout_height="200dp"android:layout_marginStart="8dp"android:layout_marginEnd="8dp"android:hint="评论"app:layout_constraintEnd_toEndOf="parent"app:layout_constraintStart_toStartOf="parent"app:layout_constraintTop_toBottomOf="@+id/textView7" /></android.support.constraint.ConstraintLayout>
逻辑控制
MainActivity
package com.example.www;import android.content.Intent;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import android.widget.EditText;import android.widget.RadioButton;import android.widget.RadioGroup;import android.widget.Toast;public class MainActivity extends AppCompatActivity {private EditText mEtName;private EditText mEtAge;private RadioGroup mRgSex;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);mEtName = (EditText) findViewById(R.id.editText);mEtAge = (EditText) findViewById(R.id.editText2);mRgSex = (RadioGroup) findViewById(R.id.radioGroup);}public void click(View view) {String name = mEtName.getText().toString().trim();String ageCon = mEtAge.getText().toString().trim();String sexCon = ((RadioButton)findViewById(mRgSex.getCheckedRadioButtonId())).getText().toString().trim();if(name.isEmpty()) {Toast.makeText(this, "请输入姓名", Toast.LENGTH_LONG).show();return;}if(ageCon.isEmpty() || !ageCon.matches("^[0-9]*$")) {Toast.makeText(this, "您输入的年龄不正确", Toast.LENGTH_LONG).show();return;}int age = Integer.parseInt(ageCon);Intent intent = new Intent(this, ResultActivity.class);intent.putExtra("age", age);intent.putExtra("name", name);intent.putExtra("sex", sexCon);startActivity(intent);}}
ResultActivity
package com.example.www;import android.content.Intent;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.widget.TextView;public class ResultActivity extends AppCompatActivity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_result);Intent intent = getIntent();String name = intent.getStringExtra("name");int age = intent.getIntExtra("age", 0);String sex = intent.getStringExtra("sex");System.out.println(name + "--" + age + "--" + sex);initView(name, sex, age);}public void initView(String name, String sex, int age){TextView tvName = (TextView) findViewById(R.id.textView2);TextView tvAge = (TextView) findViewById(R.id.textView4);TextView tvSex = (TextView) findViewById(R.id.textView6);TextView tvScore = (TextView) findViewById(R.id.textView8);TextView tvComment = (TextView) findViewById(R.id.textView9);int score = calcScore(name);tvName.setText(name);tvAge.setText(new Integer(age).toString());tvSex.setText(sex);tvScore.setText(new Integer(calcScore(name)).toString());tvComment.setText(comment(score));}public int calcScore(String name) {byte[] names = name.getBytes();int total = 0;for (byte b : names) {int temp = b & 0xff;total += temp;}return Math.abs(total) % 100;}public String comment(int score){if(score > 90) {return "您的人品已经爆表了";} else if(score > 80) {return "您的人品非常棒";} else if(score > 70) {return "您的人品还算可以";} else if(score > 60) {return "您的人品刚刚及格";} else {return "您的人品挂了，你小子坏得很……";}}}
配置文件
AndroidManifest.xml
这个文件中的
android:icon="@mipmap/ic_launcher_foreground"需要替换成 你自己的 图标或者修改为系统默认的图标才行，不然会报错
<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="/apk/res/android"package="com.example.www"><applicationandroid:allowBackup="true"android:icon="@mipmap/ic_launcher_foreground"android:label="@string/app_name"android:roundIcon="@mipmap/ic_launcher_round"android:supportsRtl="true"android:theme="@style/AppTheme"><activity android:name=".MainActivity"><intent-filter><action android:name="android.intent.action.MAIN" /><category android:name="android.intent.category.LAUNCHER" /></intent-filter></activity><activity android:name=".ResultActivity"></activity></application></manifest>
