我在我的Android应用中遇到错误,按下按钮

时间:2017-05-27 02:44:51

标签: android intellij-idea

我尝试实施我所遵循的修复程序,但没有结果,我很确定它是一些小的,我只是没有看到。这是logcat的错误

致命的例外:主要                                                                           处理:com.example.ramos.nester,PID:11297                                                                           java.lang.IllegalStateException:找不到父或祖先的方法检索(MainActivity)(View)上下文中的android:onClick属性在视图类android.support.v7.widget.AppCompatButton上定义,id为#guffutt&#39 ;                                                                               在android.support.v7.app.AppCompatViewInflater $ DeclaredOnClickListener.resolveMethod(AppCompatViewInflater.java:327)                                                                               在android.support.v7.app.AppCompatViewInflater $ DeclaredOnClickListener.onClick(AppCompatViewInflater.java:284)                                                                               在android.view.View.performClick(View.java:4492)                                                                               在android.view.View $ PerformClick.run(View.java:18568)                                                                               在android.os.Handler.handleCallback(Handler.java:733)                                                                               在android.os.Handler.dispatchMessage(Handler.java:95)                                                                               在android.os.Looper.loop(Looper.java:136)                                                                               在android.app.ActivityThread.main(ActivityThread.java:5021)                                                                               at java.lang.reflect.Method.invokeNative(Native Method)                                                                               在java.lang.reflect.Method.invoke(Method.java:515)                                                                               在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:827)                                                                               在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:643)                                                                               在dalvik.system.NativeStart.main(本地方法)

代码

    package com.example.ramos.nester;

import android.os.Bundle;
import android.os.StrictMode;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import okhttp3.*;
import org.json.JSONException;
import org.json.JSONObject;

import java.io.IOException;



public class MainActivity extends AppCompatActivity {
    public void insert(View view) {
        // Add the code that you want
        // Or do nothing if you want
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

    }

    public void retrieve(View v) {

        Button guibutt = (Button) findViewById(R.id.guibutt);
        TextView software = (TextView) findViewById(R.id.software);
        TextView name = (TextView) findViewById(R.id.name);
        TextView last = (TextView) findViewById(R.id.last);
        TextView device = (TextView) findViewById(R.id.device);
        TextView battery = (TextView) findViewById(R.id.battery);

        final String auth = "Bearer c.I1LDweqMS6Fdc3c2gLPcH8Z1W0B6dDVOXDQ9WYZYdyjoULoUubiB59cGn03mDPmXvaJv1i0Qg2H1mHA3QTmdwKOU9BVePV9MfQgKTcAuNnjddtTgIWR7Ngcz6d7ED7d14whkNuTAE3EC7uS4"; // Update with your token

        OkHttpClient client = new OkHttpClient.Builder()
                .authenticator(new Authenticator() {
                    @Override
                    public Request authenticate(Route route, Response response) throws IOException {
                        return response.request().newBuilder()
                                .header("Authorization", auth)
                                .build();
                    }
                })
                .followRedirects(true)
                .followSslRedirects(true)
                .build();

        Request request = new Request.Builder()
                .url("https://developer-api.nest.com")
                .get()
                .addHeader("content-type", "application/json; charset=UTF-8")
                .addHeader("authorization", auth)
                .build();
        try {
            StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();

            StrictMode.setThreadPolicy(policy);
            Response response = client.newCall(request).execute();

            JSONObject json = new JSONObject(response.body().string());
            JSONObject devices = json.getJSONObject("devices");
            JSONObject smoke_co_alarms = devices.getJSONObject("smoke_co_alarms");
            JSONObject alarm = smoke_co_alarms.getJSONObject("pBQ6G56_J-C-VMTeIri1Zl3BtVDjEvJ-");


            String softwaretexterino = alarm.getString("software_version");
            String nametexterino = alarm.getString("name");
            String lasttexterino = alarm.getString("last_connection");
            String devicetexterino = alarm.getString("device_id");
            String betterytexterino = alarm.getString("battery_health");

            software.setText(softwaretexterino);
            name.setText(nametexterino);
            last.setText(lasttexterino);
            device.setText(devicetexterino);
            battery.setText(betterytexterino);

            Thread.sleep(2 * 1000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        } catch (JSONException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    View.OnClickListener myOnlyhandler = new View.OnClickListener() {
        public void onClick(View v) {
            switch (v.getId()) {
                case R.id.guibutt:
                    break;
            }
        }
    };
}

XML

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        android:id="@+id/activity_main"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:paddingLeft="@dimen/activity_horizontal_margin"
        android:paddingRight="@dimen/activity_horizontal_margin"
        android:paddingTop="@dimen/activity_vertical_margin"
        android:paddingBottom="@dimen/activity_vertical_margin"
        tools:context="com.example.nestapp.MainActivity">

    <Button
            android:text="Click Me For Information"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginBottom="36dp" android:id="@+id/guibutt" android:layout_alignParentBottom="true"
            android:layout_centerHorizontal="true" android:onClick="retrieve (MainActivity)"/>
    <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/software"
            android:layout_marginTop="45dp"
            android:text="Software Version" android:layout_below="@+id/last"
            android:layout_centerHorizontal="true"/>
    <TextView
            android:text="Device ID"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginBottom="45dp" android:id="@+id/device" android:layout_above="@+id/battery"
            android:layout_centerHorizontal="true"/>
    <TextView
            android:text="Name"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="38dp" android:id="@+id/name"
            android:textAlignment="center"
            android:layout_centerInParent="false" android:layout_alignParentTop="true"
            android:layout_centerHorizontal="true"/>
    <TextView
            android:text="Battery Health"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginBottom="53dp" android:id="@+id/battery"
            android:layout_above="@+id/last" android:layout_centerHorizontal="true"/>
    <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/last"
            android:text="Last Time Period of Connection"
            android:layout_centerVertical="true" android:layout_centerHorizontal="true"/>
</RelativeLayout>

2 个答案:

答案 0 :(得分:0)

我是新来的,我对Android的体验有限。但是,我认为如果不发布你的代码就更难分辨导致崩溃的原因(至少对于像我这样的人来说)。添加代码可能会激励其他人帮助您。

答案 1 :(得分:0)

从我上面发布的代码中可以看出,由于onClick方法不可用,这个错误会弹出。一旦使用了View类而没有使用onClick方法,我遇到了类似的问题。尝试添加setOnClickListener函数来代替检索函数。它应该解决你的错误。这是使用View类和OnClick方法检测按钮单击的语法。

btn = (Button)findViewById(R.id.firstButton);
btn.setOnClickListener(new View.OnClickListener()
{
    @Override
    public void onClick(View v)
    {
        //Code goes inside this function.
    }
});

如果这没有用,那么如果你也发布活动的XML代码会更好。