Android Studio總是打開相同的不正確頁面

Question

我無法弄清楚這一點。無論我點擊什麼，我的應用都會一直進入.Weather類。

package com.example.matmap; 

import android.app.Activity; 
import android.content.Intent; 
import android.os.Bundle; 
import android.view.Menu; 
import android.view.MenuItem; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.webkit.WebView; 
import android.widget.LinearLayout; 
import android.widget.Toast; 

public class ResourcesPage extends Activity implements OnClickListener { 

    LinearLayout display; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_resources_page); 
    //display = (LinearLayout) findViewById(R.id.menuSweet); 
    LinearLayout locate = (LinearLayout) findViewById(R.id.locate); 
    LinearLayout ndsu = (LinearLayout) findViewById(R.id.ndsu); 
    LinearLayout weather = (LinearLayout) findViewById(R.id.weather); 
    LinearLayout contact = (LinearLayout) findViewById(R.id.contact); 

    locate.setOnClickListener(this); 
    ndsu.setOnClickListener(this); 
    weather.setOnClickListener(this); 
    contact.setOnClickListener(this); 
    } 

    @Override 
    public void onClick(View v) { 
    switch(v.getId()){ 
    case R.id.locate: 
     Intent myIntent = new Intent(ResourcesPage.this, MapView.class); 
     startActivity(myIntent); 
    case R.id.ndsu: 
     Intent myIntent2 = new Intent(getApplicationContext(), TimesTable.class); 
     startActivity(myIntent2); 
    case R.id.weather: 
     Intent myIntent3 = new Intent(getApplicationContext(), Weather.class); 
     startActivity(myIntent3); 
    break; } 
    } 

    @Override 
    public boolean onCreateOptionsMenu(Menu menu) { 
     // Inflate the menu; this adds items to the action bar if it is present. 
     getMenuInflater().inflate(R.menu.resources_page, menu); 
     return true; 
    } 
    @Override 
    public boolean onOptionsItemSelected(MenuItem item) { 
     if(item.getItemId() == R.id.menuHome){ 
      Intent i = new Intent(getApplicationContext(), ResourcesPage.class); 
      startActivity(i); 
     } 
     return true; 
     } 
} 

好一會MapView類

package com.example.matmap; 

import android.app.Activity; 
import android.os.Bundle; 

public class MapView extends Activity{ 
    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_mapview); 
    } 

} 

我不知道是什麼問題，因爲我已經做過這些同樣的事情，它的工作完美...

Answer 1

您缺少break s：

@Override 
public void onClick(View v) { 
    switch(v.getId()){ 
    case R.id.locate: 
     Intent myIntent = new Intent(ResourcesPage.this, MapView.class); 
     startActivity(myIntent); 
     break; 
    case R.id.ndsu: 
     Intent myIntent2 = new Intent(getApplicationContext(), TimesTable.class); 
     startActivity(myIntent2); 
     break; 
    case R.id.weather: 
     Intent myIntent3 = new Intent(getApplicationContext(), Weather.class); 
     startActivity(myIntent3); 
     break; 
    } 
} 

Answer 2

您應該在每種情況下添加中斷

switch(v.getId()){ 
    case R.id.locate: 
     Intent myIntent = new Intent(ResourcesPage.this, MapView.class); 
     startActivity(myIntent); 
     break; 
    case R.id.ndsu: 
     Intent myIntent2 = new Intent(getApplicationContext(), TimesTable.class); 
     startActivity(myIntent2); 
     break;