我遇到的问题是我制作的 apk 适用于 Samsung galaxyS1 和 SE XperiaPlay，但不适用于 Samsung Galaxy S4。主要是在登录屏幕上，当用户按下按钮时，如果详细信息正确或显示警告框，它应该将用户移动到下一个屏幕。可以按下该按钮，但它不会触发任何操作，如果您愿意的话，就像一个虚拟按钮。我不知道该怎么办。
list
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.miniproject"
android:versionCode="8"
android:versionName="1.6" >
<compatible-screens>
<screen
android:screenDensity="480"
android:screenSize="normal" />
</compatible-screens>
<uses-sdk
android:minSdkVersion="7"
android:targetSdkVersion="18" />
<uses-permission android:name="android.permission.INTERNET"/>
<application
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:icon="@drawable/domo"
android:allowBackup="true"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:label="@string/app_name"
android:name=".splashScreen">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.example.miniproject.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
</intent-filter>
</activity>
<activity
android:label="@string/app_name"
android:name=".tableScreen">
</activity>
</application>
</manifest>
主 Activity .java
package com.example.miniproject;
import java.util.ArrayList;
import java.util.List;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.ResponseHandler;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.BasicResponseHandler;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import android.os.Bundle;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.Intent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class MainActivity extends Activity implements OnClickListener {
Button submit;
EditText username;
EditText password;
HttpPost httppost;
HttpResponse response;
HttpClient httpclient;
List<NameValuePair> nameValuePairs;
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
username =(EditText) findViewById(R.id.editTextUsername);
password = (EditText) findViewById(R.id.editTextPassword);
submit = (Button) findViewById(R.id.buttonSubmit);
submit.setOnClickListener(this);
}
public void toast()
{
Context context = getApplicationContext();
CharSequence text = "Table loading...";
int duration = Toast.LENGTH_LONG;
Toast toast = Toast.makeText(context, text, duration);
toast.show();
}
public void onClick(View v)
{
if(v.getId() == submit.getId())
{
login();
}
}
private void login()
{
try{
httpclient=new DefaultHttpClient();
httppost= new HttpPost("http://www.daydreamsoftware.com/connect.php");
nameValuePairs = new ArrayList<NameValuePair>();
nameValuePairs.add(new BasicNameValuePair("username",username.getText().toString().trim()));
nameValuePairs.add(new BasicNameValuePair("password",password.getText().toString().trim()));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
response=httpclient.execute(httppost);
ResponseHandler<String> responseHandler = new BasicResponseHandler();
final String response = httpclient.execute(httppost, responseHandler);
//connect.php response User Found = true; No Such User Found = false
if(response.equalsIgnoreCase("User Found"))
{
toast();
startActivity(new Intent(MainActivity.this, tableScreen.class));
}
else
{
AlertDialog.Builder alertBox = new AlertDialog.Builder(this);
alertBox.setMessage("Wrong username or password");
alertBox.show();
}
}catch(Exception e)
{
e.printStackTrace();
}
}//end:login()
}
activity_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/textView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:background="@drawable/sand"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<EditText
android:id="@+id/editTextUsername"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@+id/editTextPassword"
android:layout_alignLeft="@+id/editTextPassword"
android:layout_marginBottom="34dp"
android:ems="10" />
<EditText
android:id="@+id/editTextPassword"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:ems="10"
android:inputType="textPassword" />
<Button
android:id="@+id/buttonSubmit"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/editTextPassword"
android:layout_centerHorizontal="true"
android:layout_marginTop="24dp"
android:text="@string/stringLogIn" />
</RelativeLayout>
我已经使用这个 s4AVD 为 S4 创建了一个 AVD它和手机有同样的问题。我附加了单击按钮后出现的 logCat:
11-17 22:57:45.851: W/System.err(832): android.os.NetworkOnMainThreadException
11-17 22:57:45.851: W/System.err(832): at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1117)
11-17 22:57:45.851: W/System.err(832): at java.net.InetAddress.lookupHostByName(InetAddress.java:385)
11-17 22:57:45.851: W/System.err(832): at java.net.InetAddress.getAllByNameImpl(InetAddress.java:236)
11-17 22:57:45.851: W/System.err(832): at java.net.InetAddress.getAllByName(InetAddress.java:214)
11-17 22:57:45.861: W/System.err(832): at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:137)
11-17 22:57:45.871: W/System.err(832): at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164)
11-17 22:57:45.871: W/System.err(832): at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119)
11-17 22:57:45.871: W/System.err(832): at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:360)
11-17 22:57:45.871: W/System.err(832): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555)
11-17 22:57:45.871: W/System.err(832): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487)
11-17 22:57:45.871: W/System.err(832): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465)
11-17 22:57:45.891: W/System.err(832): at com.example.miniproject.MainActivity.login(MainActivity.java:76)
11-17 22:57:45.891: W/System.err(832): at com.example.miniproject.MainActivity.onClick(MainActivity.java:60)
11-17 22:57:45.891: W/System.err(832): at android.view.View.performClick(View.java:4084)
11-17 22:57:45.902: W/System.err(832): at android.view.View$PerformClick.run(View.java:16966)
11-17 22:57:45.902: W/System.err(832): at android.os.Handler.handleCallback(Handler.java:615)
11-17 22:57:45.902: W/System.err(832): at android.os.Handler.dispatchMessage(Handler.java:92)
11-17 22:57:45.912: W/System.err(832): at android.os.Looper.loop(Looper.java:137)
11-17 22:57:45.922: W/System.err(832): at android.app.ActivityThread.main(ActivityThread.java:4745)
11-17 22:57:45.922: W/System.err(832): at java.lang.reflect.Method.invokeNative(Native Method)
11-17 22:57:45.931: W/System.err(832): at java.lang.reflect.Method.invoke(Method.java:511)
11-17 22:57:45.931: W/System.err(832): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
11-17 22:57:45.931: W/System.err(832): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
11-17 22:57:45.941: W/System.err(832): at dalvik.system.NativeStart.main(Native Method)
最佳答案
您显然在模拟器和实际 S4 上都打开了“严格模式”。
“严格模式”告诉您您已经在 UI 线程上完成了网络访问，这是您不应该做的。
使用 AsyncTask 或可用的几个优秀的 http 库之一，如 OkHTTP、Retrofit、Volley 等，将你的网络访问转移到后台线程。
关于Android onclicklistener 仅适用于 Galaxy S4，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/20034676/