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程式不知為何會錯誤閃退
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package com.example.rfid_pc1.myapplication;

import android.Manifest;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.location.Location;
import android.location.LocationManager;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.text.Html;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
import android.widget.TextView;
import com.example.rfid_pc1.myapplication.R;

import android.os.Handler;
import android.os.Message;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.widget.TextView;

import org.json.JSONArray;
import org.json.JSONException;

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;

public class MainActivity extends AppCompatActivity {
    static final int REQUEST_LOCATION = 1;
    LocationManager locationManager;
    private TextView tv;
    private TextView tv1;
    private TextView tv3;
    double latti=0;
    double longi=0;
    int i  ;
        @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

locationManager = (LocationManager)getSystemService(Context.LOCATION_SERVICE);
        getLocation();
        aa();

Spinner spinner = (Spinner)findViewById(R.id.spinner);
            final String[] lunch = {"A", "B"};

ArrayAdapter<String> ArrayAdapter = new ArrayAdapter<String>(MainActivity.this, android.R.layout.simple_spinner_dropdown_item,lunch);
            spinner.setAdapter(ArrayAdapter);
            spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
                @Override
                public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
                    String item = lunch[position];

if(item.equals("A")){
                        cc();
                    }else if(item.equals("B")){
                        dd();
                    }
                }

@Override
                public void onNothingSelected(AdapterView<?> parent) {

}
            });

}

public void onItemSelected(AdapterView<?> parent, View view, int position, long id){

}

private void aa(){
        tv = (TextView) findViewById(R.id.tv);
        tv1 = (TextView) findViewById(R.id.tv1);
        tv3 = (TextView) findViewById(R.id.tv3);
    }

void getLocation() {
        if(ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION)
                != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION)
                != PackageManager.PERMISSION_GRANTED) {

ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, REQUEST_LOCATION);

} else {
            Location location = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);

if (location != null){
             //   double latti = location.getLatitude();
                latti = location.getLatitude();
             //   double longi = location.getLongitude();
                longi = location.getLongitude();

((TextView)findViewById(R.id.etLocationLat)).setText("自身緯度為  :   " + latti);
                ((TextView)findViewById(R.id.etLocationLong)).setText("自身經度為  :  " + longi);
            }
        }

}

@Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions,@NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);

switch (requestCode) {
            case REQUEST_LOCATION:
                getLocation();
                break;
        }
    }

private void refresh() {
        finish();
        Intent intent = new Intent(MainActivity.this, MainActivity.class);
        startActivity(intent);
    }

private void cc(){
        OkHttpClient client = new OkHttpClient();
        Request request = new Request.Builder()
                .url("http://200.1.1.135/api.php?data=123")
                .build();
        client.newCall(request).enqueue(new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {
                Log.e("error",Log.getStackTraceString(e));
            }

@Override
            public void onResponse(Call call, Response response) throws IOException {

String jasonText = response.body().string();
                Log.i("datar",jasonText);
                getLocation();
                tv.setText(jasonText);
                try {

//String AA = new JSONArray(jasonText).getJSONObject(0).getString("AA");
                    Double AA = new JSONArray(jasonText).getJSONObject(0).getDouble("AA");
                    // String BB = new JSONArray(jasonText).getJSONObject(0).getString("BB");
                    Double BB = new JSONArray(jasonText).getJSONObject(0).getDouble("BB");
                    // String CC  ;
                    tv.setText("垃圾車經度 : "+AA+",  垃圾車緯度 : "+BB);

Double CC ;
                    Double DD ;
                    Double EE ;
                    Double FF ;
                    CC = (AA-longi)*(AA-longi)   ;
                    DD = (BB-latti) *(BB-latti)    ;
                    EE = CC+DD ;

Math.sqrt(EE);
                    FF = Math.sqrt(EE)*111000.1;
                    tv1.setText("垃圾車距離自身還有 : "+FF+"公尺");
                 tv3.setText(Html.fromHtml("GOOGLE地圖觀看 : "+"https://maps.google.com/maps?saddr="+BB+","+AA+"&daddr=+"+22.998583+","+120.24695));

}

catch (JSONException e)
                {
                    e.printStackTrace();
                }
            }
        });

}

private void dd(){
        OkHttpClient client = new OkHttpClient();
        Request request = new Request.Builder()
                .url("http://200.1.1.135/api2.php?data=123")
                .build();
        client.newCall(request).enqueue(new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {
                Log.e("error",Log.getStackTraceString(e));
            }

@Override
            public void onResponse(Call call, Response response) throws IOException {

String jasonText = response.body().string();
                Log.i("datar",jasonText);
                getLocation();
                tv.setText(jasonText);
                try {

//tv.setText(jasonText);
                    //String AA = new JSONArray(jasonText).getJSONObject(0).getString("AA");
                    Double AA = new JSONArray(jasonText).getJSONObject(0).getDouble("AA");
                    // String BB = new JSONArray(jasonText).getJSONObject(0).getString("BB");
                    Double BB = new JSONArray(jasonText).getJSONObject(0).getDouble("BB");
                    // String CC  ;
                    tv.setText("垃圾車經度 : "+AA+",  垃圾車緯度 : "+BB);

Math.sqrt(EE);
                    FF = Math.sqrt(EE)*111000.1;
                    tv1.setText("垃圾車距離自身還有 : "+FF+"公尺");
            tv3.setText(Html.fromHtml("GOOGLE地圖觀看 : "+"https://maps.google.com/maps?saddr="+BB+","+AA+"&daddr=+"+22.998583+","+120.24695));

}

catch (JSONException e)
                {
                    e.printStackTrace();
                }
            }
        });

}

不知道她為啥程式會閃退它顯示

E/AndroidRuntime: FATAL EXCEPTION: OkHttp Dispatcher
Process: com.example.rfid_pc1.myapplication, PID: 2129
android.view.ViewRootImpl$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views.
at android.view.ViewRootImpl.checkThread(ViewRootImpl.java:6118)
at android.view.ViewRootImpl.focusableViewAvailable(ViewRootImpl.java:2824)
at android.view.ViewGroup.focusableViewAvailable(ViewGroup.java:650)
at android.view.ViewGroup.focusableViewAvailable(ViewGroup.java:650)
at android.view.ViewGroup.focusableViewAvailable(ViewGroup.java:650)
at android.view.ViewGroup.focusableViewAvailable(ViewGroup.java:650)
at android.view.ViewGroup.focusableViewAvailable(ViewGroup.java:650)
at android.view.ViewGroup.focusableViewAvailable(ViewGroup.java:650)
at android.view.View.setFlags(View.java:8878)
at android.view.View.setFocusable(View.java:6093)
at android.widget.TextView.fixFocusableAndClickableSettings(TextView.java:1673)
at android.widget.TextView.setMovementMethod(TextView.java:1663)
at android.widget.TextView.setText(TextView.java:3763)
at android.widget.TextView.setText(TextView.java:3671)
at android.widget.TextView.setText(TextView.java:3646)
at com.example.rfid_pc1.myapplication.MainActivity$2.onResponse(MainActivity.java:193)
at okhttp3.RealCall$AsyncCall.execute(RealCall.java:153)
at okhttp3.internal.NamedRunnable.run(NamedRunnable.java:32)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:841)

搜尋相關Tags的文章： [ 錯誤 ] , [ 閃退 ] ,
本篇文章發表於2018-05-16 12:59

1樓回應 Silent	Android 有一條UI執行續只能用UI執行續來更新畫面而OkHttpClient 是建立新的執行續抓取網路資源必須透過handler來更新畫面不然就是直接使用 runOnUiThread runOnUiThread(new Runnable() { @Override public void run() { //更新畫面 } }); handler更新畫面的範例你網路上找都有資料本篇文章回覆於2018-05-16 14:01 == 簽名檔 == --未登入的會員無法查看對方簽名檔--
2樓回應小魚	你的前端有正常嗎? 印象中前端異常也會出現閃退, 如果前端正常就逐步執行Debug試試看吧. 本篇文章回覆於2018-05-17 12:07 == 簽名檔 == --未登入的會員無法查看對方簽名檔--
3樓作者回應許假左	1. 前端正常?是指哪裡我這個程式一個一個分開用都能不過組起來就不行了主要是組了去選擇不同PHP那部份後才出現問題 2. 那這個 runOnUiThread 是要用在哪呢? 本篇文章回覆於2018-05-17 12:39 == 簽名檔 == --未登入的會員無法查看對方簽名檔--
4樓回應 Silent	在HttpOK執行的onResponse @Override public void onResponse(Call call, Response response) throws IOException { //runOnUiThread 寫在這裡 } 本篇文章回覆於2018-05-17 13:52 == 簽名檔 == --未登入的會員無法查看對方簽名檔--
5樓作者回應許假左	要把 public void onResponse 裡的東西全都用 runOnUiThread(new Runnable() { @Override public void run() { 包住嗎? 我包住後有的變數會錯誤耶本篇文章回覆於2018-05-18 13:52 == 簽名檔 == --未登入的會員無法查看對方簽名檔--
6樓作者回應許假左	OkHttpClient client = new OkHttpClient(); Request request = new Request.Builder() .url("http://200.1.1.135/api2.php?data=123") .build(); client.newCall(request).enqueue(new Callback() { @Override public void onFailure(Call call, IOException e) { Log.e("error",Log.getStackTraceString(e)); } @Override public void onResponse(Call call, Response response) throws IOException { runOnUiThread(new Runnable() { @Override public void run() { String jasonText = response.body().string(); // response 會是錯誤的 Log.i("datar",jasonText); getLocation(); try { tv.setText(jasonText); //String AA = new JSONArray(jasonText).getJSONObject(0).getString("AA"); Double AA = new JSONArray(jasonText).getJSONObject(0).getDouble("AA"); // String BB = new JSONArray(jasonText).getJSONObject(0).getString("BB"); Double BB = new JSONArray(jasonText).getJSONObject(0).getDouble("BB"); // String CC ; tv.setText("垃圾車經度 : "+AA+", 垃圾車緯度 : "+BB); Double CC ; Double DD ; Double EE ; Double FF ; CC = (AA-longi)(AA-longi) ; DD = (BB-latti) (BB-latti) ; EE = CC+DD ; Math.sqrt(EE); FF = Math.sqrt(EE)111000.1; tv1.setText("垃圾車距離自身還有 : "+FF+"公尺"); //tv3.setText(Html.fromHtml("GOOGLE地圖觀看 : "+"https://maps.google.com/maps?saddr="+BB+","+AA+"&daddr=+"+22.998583+","+120.24695)); } catch (JSONException e) { e.printStackTrace(); } } //更新畫面 }); //更新畫面 } }); } 是像這樣嗎? 本篇文章回覆於2018-05-18 14:00 == 簽名檔 ==* --未登入的會員無法查看對方簽名檔--
7樓作者回應許假左	她錯誤顯示 Variable 'response' is accessed from within inner class, needs to be declared final 本篇文章回覆於2018-05-18 14:02 == 簽名檔 == --未登入的會員無法查看對方簽名檔--
8樓回應 Silent	needs to be declared "final" public void onResponse(Call call,final Response response) 本篇文章回覆於2018-05-18 15:26 == 簽名檔 == --未登入的會員無法查看對方簽名檔--
9樓最有價值解答 Silent	OkHttpClient client = new OkHttpClient(); Request request = new Request.Builder() .url("http://200.1.1.135/api2.php?data=123") .build(); client.newCall(request).enqueue(new Callback() { @Override public void onFailure(Call call, IOException e) { Log.e("error",Log.getStackTraceString(e)); } @Override public void onResponse(Call call,final Response response) throws IOException { runOnUiThread(new Runnable() { @Override public void run() { try { String jasonText = response.body().string(); // response 會是錯誤的 Log.i("datar",jasonText); getLocation(); tv.setText(jasonText); //String AA = new JSONArray(jasonText).getJSONObject(0).getString("AA"); Double AA = new JSONArray(jasonText).getJSONObject(0).getDouble("AA"); // String BB = new JSONArray(jasonText).getJSONObject(0).getString("BB"); Double BB = new JSONArray(jasonText).getJSONObject(0).getDouble("BB"); // String CC ; tv.setText("垃圾車經度 : "+AA+", 垃圾車緯度 : "+BB); Double CC ; Double DD ; Double EE ; Double FF ; CC = (AA-longi)(AA-longi) ; DD = (BB-latti) (BB-latti) ; EE = CC+DD ; Math.sqrt(EE); FF = Math.sqrt(EE)111000.1; tv1.setText("垃圾車距離自身還有 : "+FF+"公尺"); //tv3.setText(Html.fromHtml("GOOGLE地圖觀看 : "+"https://maps.google.com/maps?saddr="+BB+","+AA+"&daddr=+"+22.998583+","+120.24695)); } catch (Exception e){ e.printStackTrace(); } } }); } }); 本篇文章回覆於2018-05-18 15:33 == 簽名檔 ==* --未登入的會員無法查看對方簽名檔--

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1樓回應 Silent	Android 有一條UI執行續只能用UI執行續來更新畫面而OkHttpClient 是建立新的執行續抓取網路資源必須透過handler來更新畫面不然就是直接使用 runOnUiThread runOnUiThread(new Runnable() { @Override public void run() { //更新畫面 } }); handler更新畫面的範例你網路上找都有資料本篇文章回覆於2018-05-16 14:01 == 簽名檔 == --未登入的會員無法查看對方簽名檔--
2樓回應小魚	你的前端有正常嗎? 印象中前端異常也會出現閃退, 如果前端正常就逐步執行Debug試試看吧. 本篇文章回覆於2018-05-17 12:07 == 簽名檔 == --未登入的會員無法查看對方簽名檔--
3樓作者回應許假左	1. 前端正常?是指哪裡我這個程式一個一個分開用都能不過組起來就不行了主要是組了去選擇不同PHP那部份後才出現問題 2. 那這個 runOnUiThread 是要用在哪呢? 本篇文章回覆於2018-05-17 12:39 == 簽名檔 == --未登入的會員無法查看對方簽名檔--
4樓回應 Silent	在HttpOK執行的onResponse @Override public void onResponse(Call call, Response response) throws IOException { //runOnUiThread 寫在這裡 } 本篇文章回覆於2018-05-17 13:52 == 簽名檔 == --未登入的會員無法查看對方簽名檔--
5樓作者回應許假左	要把 public void onResponse 裡的東西全都用 runOnUiThread(new Runnable() { @Override public void run() { 包住嗎? 我包住後有的變數會錯誤耶本篇文章回覆於2018-05-18 13:52 == 簽名檔 == --未登入的會員無法查看對方簽名檔--
6樓作者回應許假左	OkHttpClient client = new OkHttpClient(); Request request = new Request.Builder() .url("http://200.1.1.135/api2.php?data=123") .build(); client.newCall(request).enqueue(new Callback() { @Override public void onFailure(Call call, IOException e) { Log.e("error",Log.getStackTraceString(e)); } @Override public void onResponse(Call call, Response response) throws IOException { runOnUiThread(new Runnable() { @Override public void run() { String jasonText = response.body().string(); // response 會是錯誤的 Log.i("datar",jasonText); getLocation(); try { tv.setText(jasonText); //String AA = new JSONArray(jasonText).getJSONObject(0).getString("AA"); Double AA = new JSONArray(jasonText).getJSONObject(0).getDouble("AA"); // String BB = new JSONArray(jasonText).getJSONObject(0).getString("BB"); Double BB = new JSONArray(jasonText).getJSONObject(0).getDouble("BB"); // String CC ; tv.setText("垃圾車經度 : "+AA+", 垃圾車緯度 : "+BB); Double CC ; Double DD ; Double EE ; Double FF ; CC = (AA-longi)(AA-longi) ; DD = (BB-latti) (BB-latti) ; EE = CC+DD ; Math.sqrt(EE); FF = Math.sqrt(EE)111000.1; tv1.setText("垃圾車距離自身還有 : "+FF+"公尺"); //tv3.setText(Html.fromHtml("GOOGLE地圖觀看 : "+"https://maps.google.com/maps?saddr="+BB+","+AA+"&daddr=+"+22.998583+","+120.24695)); } catch (JSONException e) { e.printStackTrace(); } } //更新畫面 }); //更新畫面 } }); } 是像這樣嗎? 本篇文章回覆於2018-05-18 14:00 == 簽名檔 ==* --未登入的會員無法查看對方簽名檔--
7樓作者回應許假左	她錯誤顯示 Variable 'response' is accessed from within inner class, needs to be declared final 本篇文章回覆於2018-05-18 14:02 == 簽名檔 == --未登入的會員無法查看對方簽名檔--
8樓回應 Silent	needs to be declared "final" public void onResponse(Call call,final Response response) 本篇文章回覆於2018-05-18 15:26 == 簽名檔 == --未登入的會員無法查看對方簽名檔--
9樓最有價值解答 Silent	OkHttpClient client = new OkHttpClient(); Request request = new Request.Builder() .url("http://200.1.1.135/api2.php?data=123") .build(); client.newCall(request).enqueue(new Callback() { @Override public void onFailure(Call call, IOException e) { Log.e("error",Log.getStackTraceString(e)); } @Override public void onResponse(Call call,final Response response) throws IOException { runOnUiThread(new Runnable() { @Override public void run() { try { String jasonText = response.body().string(); // response 會是錯誤的 Log.i("datar",jasonText); getLocation(); tv.setText(jasonText); //String AA = new JSONArray(jasonText).getJSONObject(0).getString("AA"); Double AA = new JSONArray(jasonText).getJSONObject(0).getDouble("AA"); // String BB = new JSONArray(jasonText).getJSONObject(0).getString("BB"); Double BB = new JSONArray(jasonText).getJSONObject(0).getDouble("BB"); // String CC ; tv.setText("垃圾車經度 : "+AA+", 垃圾車緯度 : "+BB); Double CC ; Double DD ; Double EE ; Double FF ; CC = (AA-longi)(AA-longi) ; DD = (BB-latti) (BB-latti) ; EE = CC+DD ; Math.sqrt(EE); FF = Math.sqrt(EE)111000.1; tv1.setText("垃圾車距離自身還有 : "+FF+"公尺"); //tv3.setText(Html.fromHtml("GOOGLE地圖觀看 : "+"https://maps.google.com/maps?saddr="+BB+","+AA+"&daddr=+"+22.998583+","+120.24695)); } catch (Exception e){ e.printStackTrace(); } } }); } }); 本篇文章回覆於2018-05-18 15:33 == 簽名檔 ==* --未登入的會員無法查看對方簽名檔--