android litepal 简单使用

package com.zowneo.litepal; import android.os.Bundle; import android.text.Editable; import android.text.TextWatcher; import android.util.Log; import android.view.View; import android.widget.EditText; import android.widget.TextView; import androidx.appcompat.app.AppCompatActivity; import org.litepal.LitePal; public class MainActivity extends AppCompatActivity { private EditText mInputWord; private TextView mShowWord; private TextView mGetWord; TempDataBean bean = new TempDataBean(); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mInputWord = findViewById(R.id.input_word); mShowWord = findViewById(R.id.show_word); mGetWord = findViewById(R.id.get_word); bean.save(); mInputWord.addTextChangedListener(new TextWatcher() { @Override public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) { } @Override public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) { } @Override public void afterTextChanged(Editable editable) { String string = editable.toString(); if (string.isEmpty()) { return; } int parseInt = Integer.parseInt(string); Log.e("========", "==afterTextChanged: parseInt + " + parseInt); bean.setHistory(parseInt); bean.update(1); } }); mGetWord.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { TempDataBean first = LitePal.find(TempDataBean.class , 1); mShowWord.setText(""+first.getHistory()); int history = first.getHistory(); Log.e("========", "==onClick: history + " + history); } }); } }