android - 即使包含 try catch block 后仍出现 IO 异常

Question

下面这段代码产生了错误

Activity context;
context = new Activity();
try {
    InputStream configAsset = context.getApplicationContext().getAssets().open("MyConfig.cfg");
    //SimpleSpkDetSystem alizeSystem = new SimpleSpkDetSystem(configAsset, context.getApplicationContext().getFilesDir().getPath());

}catch (FileNotFoundException e) {
    Log.e(LOG_TAG, "File not found for recording ", e);
}

错误:

Error:(255, 87) error: unreported exception IOException; must be caught or declared to be thrown
Error:Execution failed for task ':app:compileDebugJavaWithJavac'.
> Compilation failed; see the compiler error output for details.

即使在我包含 try、catch block 之后，为什么它会产生错误？

Answer 1

像这样更改您的代码:

之前:

Activity context;
        context = new Activity();
        try {
            InputStream configAsset = context.getApplicationContext().getAssets().open("MyConfig.cfg");
            //SimpleSpkDetSystem alizeSystem = new SimpleSpkDetSystem(configAsset, context.getApplicationContext().getFilesDir().getPath());

        }catch (FileNotFoundException e) {
            Log.e(LOG_TAG, "File not found for recording ", e);
        }

之后:

Activity context;
        context = new Activity();
        try {
            InputStream configAsset = context.getApplicationContext().getAssets().open("MyConfig.cfg");
            //SimpleSpkDetSystem alizeSystem = new SimpleSpkDetSystem(configAsset, context.getApplicationContext().getFilesDir().getPath());

        }catch (IOException e) {
            Log.e(LOG_TAG, "File not found for recording ", e);
        }