安卓---实验7---小猴子摘桃
文章目录
- PeachActivity.java
- MainActivity.java
- activity_main.xml
- activity_peach.xml
PeachActivity.java
public class PeachActivity extends AppCompatActivity implements View.OnClickListener { private ImageView imageView1, imageView2, imageView3, imageView4, imageView5, imageView6; private Button btn; private int cnt = 0; //摘桃子的个数 @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_peach); initView(); } public void initView() { imageView1 = findViewById(R.id.peach_1); imageView2 = findViewById(R.id.peach_2); imageView3 = findViewById(R.id.peach_3); imageView4 = findViewById(R.id.peach_4); imageView5 = findViewById(R.id.peach_5); imageView6 = findViewById(R.id.peach_6); btn = findViewById(R.id.btn_exit); //监听器 imageView1.setOnClickListener(this); imageView2.setOnClickListener(this); imageView3.setOnClickListener(this); imageView4.setOnClickListener(this); imageView5.setOnClickListener(this); imageView6.setOnClickListener(this); btn.setOnClickListener(this); } @Override public void onClick(View view) { //实现点击事件 switch (view.getId()) { case R.id.peach_1: info(imageView1); break; case R.id.peach_2: info(imageView2); break; case R.id.peach_3: info(imageView3); break; case R.id.peach_4: info(imageView4); break; case R.id.peach_5: info(imageView5); break; case R.id.peach_6: info(imageView6); break; case R.id.btn_exit: returnData(); break; } } private void returnData() { //将数据回传到上个界面 Intent intent = new Intent(); intent.putExtra("cnt", cnt); setResult(1002, intent); //1是返回码 PeachActivity.this.finish(); } //桃子的点击事件处理 private void info(ImageView imageView) { cnt++; imageView.setVisibility(View.INVISIBLE); Toast.makeText(PeachActivity.this, "摘了" + cnt + "个桃子", Toast.LENGTH_LONG).show(); } @Override public boolean onKeyDown(int keyCode, KeyEvent event) { if (keyCode == KeyEvent.KEYCODE_BACK && event.getRepeatCount() == 0) { returnData(); return true; } return false; } }
MainActivity.java
public class MainActivity extends AppCompatActivity { private Button btn1; //去桃园按钮 private TextView tv_cnt; private int totalCnt; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initView(); } private void initView() { btn1 = findViewById(R.id.btn_enter); tv_cnt = findViewById(R.id.tv_cnt); //为"去桃园"按钮增加监听事件,点击这个按钮,跳转到桃园界面 btn1.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { Intent intent = new Intent(MainActivity.this, PeachActivity.class); startActivityForResult(intent, 1001); } }); } // 用来接收上个界面传过来的信息的 @Override protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) { super.onActivityResult(requestCode, resultCode, data); if (requestCode == 1001 && resultCode == 1002) { int cnt = data.getIntExtra("cnt", 0); totalCnt = totalCnt + cnt; tv_cnt.setText("摘了" + totalCnt + "桃子"); } } }
activity_main.xml
activity_peach.xml
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