public class WriteActivity extends AppCompatActivity {
private Button save;
private EditText etwrite;
private TextView show;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_write);
save = (Button) findViewById(R.id.save);
etwrite = (EditText) findViewById(R.id.et_write);
show = (TextView) findViewById(R.id.tv_show);
save.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
//show.setText(write.getText().toString());
String write = etwrite.getText().toString().trim();
//public void save(String EditText){//inputText为传入的要保存的数据
FileOutputStream out = null;
BufferedWriter writer = null;
try {
out = openFileOutput("data", Context.MODE_APPEND);//"data"为文件名,第二个参数为文件操作模式:文件已经存在,就往文件里面追加类容,不从新创建文件。
writer = new BufferedWriter(new OutputStreamWriter(out));
writer.write(write);
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (writer != null) {
writer.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
// }
//读取数据
}
});
}
}