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-> 移动开发 -> 基于Android studio开发小项目，用户登录页面跳转全过程，bundle带值跳转等 -> 正文阅读

[移动开发]基于Android studio开发小项目，用户登录页面跳转全过程，bundle带值跳转等

今天我上传下我期末时候的Android作品，包含代码和运行结果

1)编码实现“登录界面”。

界面实现，添加事件，当密码不一致时，弹出相应的对话框“两次密码不一致，请重试！”。
当单击“提交”按纽，先验证用户密码正确，再实现页面跳转到主界面。

2)实现“主界面”。

实现图3所示的界面，利用GridView+（SimpleAdapter、BaseAdapter任一）实现。
添加事件监听，当单击“新闻”数据项时，跳转到新闻界面。当单击“个人”数据项时，跳转到个人界面。

3)实现“个人信息”界面。

实现界面。
当单击“选择地区”，Spinner组件会显示相关内容，要求结合ArrayAdapter适配器来实现，提交 ?数组资源文件及Spinner结合ArrayAdapter使用的代码。
?按“提交”按纽，跳转到“结果界面”,?注意要用Bundle数据包来存储数据，并用Intent进行页面跳转。

实现“结果”界面。

在“个人信息”界面中，当单击“提交”时，将页面输入的内容显示到“结果界面”,如图7所示。
在“结果”界面上，按“返回”，则关闭此界面，返回“个人信息”界面上。

5)实现“新闻”界面。

为文本添加“上下文”菜单。
为“上下文”菜单添加事件，实现文字的字体大小变换，如图10所示的界面。
当单击“关闭”时，关闭当前界面返回到上一页面中。

1、“登录界面”

完整的运行界面图

界面布局xml代码

java代码

package com.example.test_01_15_xujiaxiang;

import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class MainActivity extends Activity {
????EditText editText1;
????EditText editText2;
????EditText editText3;

????protected void onCreate(Bundle savedInstanceState) {
????????super.onCreate(savedInstanceState);
????????setContentView(R.layout.activity_main);
????????editText1 = (EditText) findViewById(R.id.editText1);
????????editText2= (EditText) findViewById(R.id.editText2);
????????editText3= (EditText) findViewById(R.id.editText3);
????????Button button = (Button) findViewById(R.id.button1);
????????button.setOnClickListener(new View.OnClickListener() {
????????????@Override
????????????public void onClick(View v) {
????????????????if (editText1.getText().toString().equals("") || editText2.getText().toString().equals("") || editText3.getText().toString().equals("")) {
????????????????????Toast.makeText(MainActivity.this, "用户名或密码不能为空！", Toast.LENGTH_SHORT).show();
????????????????} else if (!editText2.getText().toString().equals(editText3.getText().toString())) {
????????????????????Toast.makeText(MainActivity.this, "两次密码不相同", Toast.LENGTH_SHORT).show();
????????????????}
????????????????else {
????????????????????Intent intent = new Intent(MainActivity.this, xjx2.class);
????????????????????startActivity(intent);
????????????????}
????????????}
????????});

????????Button button2 = (Button)findViewById(R.id.button2);
????????button2.setOnClickListener(new View.OnClickListener() {
????????????@Override
????????????public void onClick(View v) {
????????????????editText1.setText("");
????????????????editText2.setText("");
????????????????editText3.setText("");
????????????}
????????});
????}
}

2、“主界面”?

完整的运行界面图

模板布局代码

界面布局xml代码

java代码

package com.example.test_01_15_xujiaxiang;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.GridView;
import android.widget.SimpleAdapter;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class xjx2 extends Activity {

????Intent intent;
????protected void onCreate(Bundle savedInstanceState) {
????????super.onCreate(savedInstanceState);
????????setContentView(R.layout.xjx2);
????????GridView gridView = (GridView) findViewById(R.id.gridView1);
????????int[] imageId = new int[] {R.drawable.xw, R.drawable.grxx};
????????String[] title = new String[] {"新闻", "个人信息"};
????????List<Map<String, Object>> listItems = new ArrayList<Map<String, Object>>();
????????for (int i = 0; i < imageId.length; i++) {
????????????Map<String, Object> map = new HashMap<String, Object>();
????????????map.put("image", imageId[i]);
????????????map.put("title", title[i]);
????????????listItems.add(map);}
????????String[] string = new String[] {"title", "image"};
????????int[] object = new int[] {R.id.textView1, R.id.imageView1};
????????SimpleAdapter simpleAdapter = new SimpleAdapter(this, listItems, R.layout.xjx, string, object);
????????gridView.setAdapter(simpleAdapter);
????????gridView.setOnItemClickListener(this::onItemClick);
????}

????public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
????????Intent intent;
????????switch (position) {
????????????case 0:
????????????????intent = new Intent(xjx2.this, xjx3.class);
????????????????startActivity(intent);
????????????????break;
????????????case 1:
????????????????intent = new Intent(xjx2.this, xjx4.class);
????????????????startActivity(intent);
????????????????break;
????????????case 2:
????????????????break;
????????????case 3:
????????????????break;
????????????case 4:
????????????????break;
????????}
????}
}

3、“个人信息界面”?

完整的运行界面图

界面布局xml代码

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
????android:layout_width="match_parent"
????????android:id="@+id/tab1"
????android:layout_height="match_parent"
????android:orientation="vertical" >
?
????<LinearLayout
????????android:layout_width="match_parent"
????????android:layout_height="wrap_content" >
????????<TextView
????????????android:id="@+id/textView4"
????????????android:layout_width="wrap_content"
????????????android:layout_height="wrap_content"
????????????android:text="用户名:" />

????????<EditText
????????????android:id="@+id/editText1"
????????????android:layout_width="match_parent"
????????????android:layout_height="50dp"
????????????android:ems="10" >

????????????<requestFocus />
????????</EditText>
????</LinearLayout>

????<LinearLayout
????????android:layout_width="match_parent"
????????android:layout_height="36dp" >

????????<TextView
????????????android:id="@+id/textView5"
????????????android:layout_width="wrap_content"
????????????android:layout_height="wrap_content"
????????????android:text="职业" />
????????<EditText
????????????android:id="@+id/editText2"
????????????android:layout_width="match_parent"
????????????android:layout_height="50dp"
????????????android:ems="10"
???????????>

????????????<requestFocus />
????????</EditText>
????</LinearLayout>
???
?<LinearLayout
??????android:layout_width="304dp"
??????android:layout_height="wrap_content" >
<TextView
????????????android:id="@+id/textView7"
????????????android:layout_width="wrap_content"
????????????android:layout_height="wrap_content"
?????????????android:layout_weight="1"
????????????android:text="性别:" />
???<RadioGroup
???????android:id="@+id/radioGroup1"
???????android:layout_width="262dp"
???????android:layout_height="wrap_content" >
?????<RadioButton
?????????android:id="@+id/radio0"
?????????android:layout_width="80dp"
?????????android:layout_height="wrap_content"
?????????android:gravity="center"
?????????android:text="男" />
?????<RadioButton
?????????android:id="@+id/radio1"
?????????android:layout_width="77dp"
?????????android:layout_height="wrap_content"
?????????android:gravity="center"
?????????android:text="女" />
???</RadioGroup>
?????</LinearLayout>
?<LinearLayout
????????android:layout_width="match_parent"
????????android:layout_height="wrap_content" >

????</LinearLayout>
?????<LinearLayout
????????android:layout_width="match_parent"
????????android:layout_height="wrap_content" >
????????<TextView
????????????android:id="@+id/textView6"
????????????android:layout_width="wrap_content"
????????????android:layout_height="wrap_content"
????????????android:text="个人爱好" />

????</LinearLayout>
????<Spinner
????????android:id="@+id/spinner1"
????????android:layout_width="match_parent"
????????android:layout_height="wrap_content"
????????android:entries="@array/data" />
????<LinearLayout
????????android:layout_width="match_parent"
????????android:layout_height="wrap_content" >
????????<Button
????????android:id="@+id/button1"
????????android:layout_width="50px"
????????android:layout_height="wrap_content"
????????android:layout_weight="1"
????????android:text="提交" />
????????????<Button
????????android:id="@+id/button2"
????????android:layout_width="50px"
????????android:layout_height="wrap_content"
????????android:layout_weight="1"
????????android:text="取消" />
????</LinearLayout>
</LinearLayout>

java代码

package com.example.test_01_15_xujiaxiang;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.Spinner;
import android.widget.TabHost;
import android.widget.Toast;

public class xjx4 extends Activity {

????EditText editText4,editText5,editText6;
????Spinner sp;
????protected void onCreate(Bundle savedInstanceState) {
????????super.onCreate(savedInstanceState);
????????setContentView(R.layout.xjx4);

????????sp=(Spinner)findViewById(R.id.spinner1);
????????String[] data=getResources().getStringArray(R.array.data);
????????Button button1 = (Button) findViewById(R.id.button1);
????????Button button2 = (Button) findViewById(R.id.button2);
????????button2.setOnClickListener(new View.OnClickListener(){
????????????@Override
????????????public void onClick(View arg0) {
????????????????// TODO Auto-generated method stub
????????????????Intent intent2;
????????????????intent2 = new Intent(xjx4.this, xjx2.class);
????????????????startActivity(intent2);
????????????} ??});
????????button1.setOnClickListener(new View.OnClickListener() {
????????????@Override
????????????public void onClick(View v) {
????????????????String editText4 = ((EditText) findViewById(R.id.editText1)).getText().toString();
????????????????String editText5 = ((EditText) findViewById(R.id.editText2)).getText().toString();

????????????????String radioGroups = "";
????????????????RadioGroup radioGroup = (RadioGroup) findViewById(R.id.radioGroup1);
????????????????for (int i = 0; i < radioGroup.getChildCount(); i++) {
????????????????????RadioButton radioButton = (RadioButton) radioGroup.getChildAt(i);
????????????????????if (radioButton.isChecked()) {
????????????????????????radioGroups = radioButton.getText().toString();
????????????????????????break; } }
????????????????String spinners = sp.getSelectedItem().toString();
????????????????if (!editText4.equals("") && !editText5.equals("")) {
????????????????????Intent intent = new Intent(xjx4.this, xjx5.class);
????????????????????Bundle bundle = new Bundle();
????????????????????bundle.putCharSequence("editText4", editText4);
????????????????????bundle.putCharSequence("editText5", editText5);
????????????????????bundle.putCharSequence("radioGroups", radioGroups);
????????????????????bundle.putCharSequence("spinners", spinners);
????????????????????intent.putExtras(bundle);
????????????????????startActivity(intent);

????????????????} else {
????????????????????Toast.makeText(xjx4.this, "请将所有项填完！", Toast.LENGTH_SHORT).show();
????????????????} ????}
????????});
????}}

其它资源文件代码

<?xml version="1.0" encoding="utf-8"?>
<resources>
?
????<string-array name="data">
?????????<item>玩游戏</item>
????????<item>运动</item>
??????<item>学习</item>
??????<item>追剧</item>
??????<item>音乐</item> ????????
????</string-array>
????
</resources>

4、“结果界面”?

完整的运行界面图

界面布局xml代码

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
????android:layout_width="match_parent"
????android:layout_height="match_parent"
????android:id="@+id/color"
????android:orientation="vertical" >
????<TextView
????????android:id="@+id/textView0_0"
????????android:layout_width="wrap_content"
????????android:layout_height="wrap_content"
????????android:layout_gravity="center"
????????android:textSize="50px"
????????android:text="15结果页面徐家祥" />
????<LinearLayout
????????android:layout_width="match_parent"
????????android:layout_height="wrap_content" >
????????<TextView
????????????android:id="@+id/textView1_1"
????????????android:layout_width="wrap_content"
????????????android:layout_height="wrap_content"
????????????android:layout_weight="1"
????????????android:gravity="right"
????????????android:text="用户名:" />
????????<TextView
????????????android:id="@+id/textView1_2"
????????????android:layout_width="wrap_content"
????????????android:layout_height="wrap_content"
????????????android:layout_weight="2"/>
????</LinearLayout>

????<LinearLayout
????????android:layout_width="match_parent"
????????android:layout_height="wrap_content" >
????????<TextView
????????????android:id="@+id/textView2_1"
????????????android:layout_width="wrap_content"
????????????android:layout_height="wrap_content"
????????????android:layout_weight="1"
????????????android:gravity="right"
????????????android:text="职业：" />
????????<TextView
????????????android:id="@+id/textView2_2"
????????????android:layout_width="wrap_content"
????????????android:layout_height="wrap_content"
????????????android:layout_weight="2" />
????</LinearLayout>
????<LinearLayout
????????android:layout_width="match_parent"
????????android:layout_height="wrap_content" >
????????<TextView
????????????android:id="@+id/textView3_1"
????????????android:layout_width="wrap_content"
????????????android:layout_height="wrap_content"
????????????android:layout_weight="1"
????????????android:gravity="right"
????????????android:text="性别：" />
????????<TextView
????????????android:id="@+id/textView3_2"
????????????android:layout_width="wrap_content"
????????????android:layout_height="wrap_content"
????????????android:layout_weight="2" />
????</LinearLayout>
????<LinearLayout
????????android:layout_width="match_parent"
????????android:layout_height="wrap_content" >
????????<TextView
????????????android:id="@+id/textView4_1"
????????????android:layout_width="wrap_content"
????????????android:layout_height="wrap_content"
????????????android:layout_weight="1"
????????????android:gravity="right"
????????????android:text="个人爱好：" />
????????<TextView
????????????android:id="@+id/textView4_2"
????????????android:layout_width="wrap_content"
????????????android:layout_height="wrap_content"
????????????android:layout_weight="2"/>
????</LinearLayout>
????<Button
????????android:id="@+id/button1"
????????android:layout_width="wrap_content"
????????android:layout_height="wrap_content"
????????android:layout_gravity="center"
????????android:text="返回" />

</LinearLayout>

java代码

package com.example.test_01_15_xujiaxiang;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.GridView;
import android.widget.LinearLayout;
import android.widget.SimpleAdapter;
import android.widget.TextView;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class xjx5 extends Activity {
????LinearLayout layout;
????TextView textView0;
????protected void onCreate(Bundle savedInstanceState) {
????????super.onCreate(savedInstanceState);
????????setContentView(R.layout.xjx5);
????????layout=(LinearLayout)findViewById(R.id.color);

????????Intent intent = getIntent();
????????Bundle bundle = intent.getExtras();
????????((TextView)findViewById(R.id.textView1_2)).setText(bundle.getString("editText4"));
????????((TextView)findViewById(R.id.textView2_2)).setText(bundle.getString("editText5"));
????????((TextView)findViewById(R.id.textView3_2)).setText(bundle.getString("radioGroups"));
????????((TextView)findViewById(R.id.textView4_2)).setText(bundle.getString("spinners"));

????????Button button1 = (Button) findViewById(R.id.button1);
????????button1.setOnClickListener(new View.OnClickListener(){
????????????@Override
????????????public void onClick(View arg0) {
????????????????// TODO Auto-generated method stub
????????????????Intent intent1;
????????????????intent1 = new Intent(xjx5.this, xjx4.class);
????????????????startActivity(intent1);
????????????}

????????});
????}
}

5、“新闻界面”?

完整的运行界面图

菜单xml 代码

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
????<item android:id="@+id/big" android:title="字体最大"/>
????<item android:id="@+id/middle" android:title="中"/>
????<item android:id="@+id/small" android:title="字体最小"/>
???
</menu>

界面布局xml代码

java代码

package com.example.test_01_15_xujiaxiang;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.ContextMenu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.TextView;

public class xjx3 extends Activity {
????TextView textView1, textView2;
????LinearLayout layout;
????Intent intent;

????protected void onCreate(Bundle savedInstanceState) {
????????super.onCreate(savedInstanceState);
????????setContentView(R.layout.xjx3);

????????Button button = (Button) findViewById(R.id.button1);
????????textView1 = (TextView) findViewById(R.id.textView1);
????????layout=(LinearLayout)findViewById(R.id.color);
????????registerForContextMenu(textView1);
????????button.setOnClickListener(new View.OnClickListener() {
????????????@Override
????????????public void onClick(View arg0) {
????????????????// TODO Auto-generated method stub
????????????????intent = new Intent(xjx3.this, xjx2.class);
????????????????startActivity(intent);
????????????}});

????}

????public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
????????MenuInflater menuInflater = new MenuInflater(this);
????????menuInflater.inflate(R.menu.main, menu);
????????super.onCreateContextMenu(menu, v, menuInfo);
????}

????public boolean onContextItemSelected(MenuItem item) {
????????textView2 = (TextView) findViewById(R.id.textView2);
????????int id = item.getItemId();
????????if (id == R.id.big) {
????????????textView2.setTextSize(50);
????????} else if (id == R.id.middle) {
????????????textView2.setTextSize(25);
????????} else if (id == R.id.small) {
????????????textView2.setTextSize(10);
????????}
????????return super.onContextItemSelected(item);
????}

}

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