java - 如何在android中读取txt文件？

Question

这个问题已经有答案了:

How can I read a text file in Android? [duplicate] (5 个回答)

已关闭 3 年前。

package com.example.popword;

import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
import java.io.File;
import java.util.Scanner;

public class ReadText1 extends Activity {
    TextView textview;
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        textview = (TextView) findViewById(R.id.textView);
        try (Scanner scanner = new Scanner(new File("C:\\Users\\UOU\\Desktop\\word.txt"))) {
            while (scanner.hasNext()) {
                textview.setText(scanner.nextLine());
            }
        } catch (Exception e) {
            System.err.println("Exception occurred!");
        }
    }
}

================================================== ===================================== 2019-11-13 20:07:44.224 1004-1004/com.example.popword E/cklee: com.example.popword.ReadText1.printStackTrace(ReadText1.java:29) com.example.popword.ReadText1.onCreate(ReadText1.java:22) android.app.Activity.performCreate(Activity.java:7136) android.app.Activity.performCreate(Activity.java:7127) android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1271) android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2893) android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048) android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78) android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108) android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68) android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808) android.os.Handler.dispatchMessage(Handler.java:106) android.os.Looper.loop(Looper.java:193) android.app.ActivityThread.main(ActivityThread.java:6669) java.lang.reflect.Method.invoke( native 方法) com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)

Answer 1

您需要将txt文件放入Android项目包中。您可以将其放入:

• Assets 文件夹然后:

AssetManager am = context.getAssets();
InputStream is = am.open("word.txt");

• Res 文件夹 ( res/raw ) 然后:

InputStream is = getResources().openRawResource(R.raw.word);