android异常!!! FAILED BINDER TRANSACTION !!!

深藏阁楼爱情的钟 2022-08-09 14:56 120阅读 0赞

如下代码：

public class BActivity extends Activity {
    	Button btn_noSave = null;
    	
    	@Override
    	public void onCreate(Bundle savedInstanceState) {
    		super.onCreate(savedInstanceState);
    		setContentView(R.layout.bactivity);
    		btn_noSave = (Button)findViewById(R.id.btn_noSave);
    		btn_noSave.setOnClickListener(new OnClickListener() {
    			
    			@Override
    			public void onClick(View v) {
    				// TODO Auto-generated method stub
    				File file = new File(getFilesDir(), "data.txt");
    				if(file.delete()) {
    					Toast.makeText(BActivity.this, "删除成功", Toast.LENGTH_LONG).show();
    				}
    			}
    		});
    	}
    
    
    }

运行的时候系统并没有报错，但是我把文件存储封装成一个方法，如下：

public class BActivity extends Activity {
    	Button btn_noSave = null;
    	
    	@Override
    	public void onCreate(Bundle savedInstanceState) {
    		super.onCreate(savedInstanceState);
    		setContentView(R.layout.bactivity);
    		btn_noSave = (Button)findViewById(R.id.btn_noSave);
    		btn_noSave.setOnClickListener(new OnClickListener() {
    			
    			@Override
    			public void onClick(View v) {
    				// TODO Auto-generated method stub
    				deleteUser();
    			}
    		});
    	}
    
    	private void deleteUser() {
    		// TODO Auto-generated method stub
    		File file = new File(getFilesDir(), "data.txt");
    		if(file.delete()) {
    			Toast.makeText(BActivity.this, "删除成功", Toast.LENGTH_LONG).show();
    		}
    	}
    
    }

居然报错了！！，并且报错信息是看不懂的：

![Center][]

仔细看看才发现是Toast的方法中的第一个参数不能这样传，直接传入this就不会报错了

[Center]: /images/20220731/3a6c9669536b4d78836326830e57621e.png