今日总结

2021年2月9日：

seting.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:background="@color/grey_f3f3f3">
    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="50dp">
        <ImageView
            android:id="@+id/setting_iv_back"
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:src="@mipmap/it_back"
            android:layout_marginLeft="10dp"
            android:onClick="onClick"/>
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/setting"
            android:textStyle="bold"
            android:textSize="18sp"
            android:layout_centerInParent="true"/>
    </RelativeLayout>
    <TextView
        android:id="@+id/setting_tv_clear"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@string/clear_all"
        android:onClick="onClick"
        android:textSize="16sp"
        android:textStyle="bold"
        android:padding="15dp"
        android:background="@color/white"/>
    <View
        android:layout_width="match_parent"
        android:layout_height="1dp"
        android:background="@color/grey_7D7D7D"/>
</LinearLayout>

setingActivity:

package com.example.jiatingruanjian;

import android.app.AlertDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.View;
import android.widget.Toast;

import androidx.appcompat.app.AppCompatActivity;

import com.example.jiatingruanjian.db.DBManager;


public class SettingActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_setting);
    }

    public void onClick(View view) {
        switch (view.getId()) {
            case R.id.setting_iv_back:
                finish();
                break;
            case R.id.setting_tv_clear:
                showDeleteDialog();
                break;
        }
    }

    private void showDeleteDialog() {
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setTitle("删除提示")
                .setMessage("您确定要删除所有记录么？
注意：删除后无法恢复，请慎重选择！")
                .setPositiveButton("取消",null)
                .setNegativeButton("确定", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        DBManager.deleteAllAccount();
                        Toast.makeText(SettingActivity.this,"删除成功！",Toast.LENGTH_SHORT).show();
                    }
                });
        builder.create().show();
    }
}