每日总结2023/2/23

今天继续进行安卓的学习

 

 用户名文本框

 

 

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    xmlns:android="http://schemas.android.com/apk/res/android">

    <EditText

       android:hint="请输入用户名"
        android:textColorHint="@color/colorAccent"


        android:layout_width="200dp"
        android:layout_height="200dp" />







</LinearLayout>

 获取输入的内容

 

 xml文件代码

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    xmlns:android="http://schemas.android.com/apk/res/android">

    <EditText
       android:id="@+id/et"
       android:hint="请输入用户名"
        android:textColorHint="@color/colorAccent"
        android:inputType="phone"
android:drawableLeft="@drawable/login"
        android:drawablePadding="10dp"
        android:paddingLeft="10dp"
        android:layout_width="200dp"
        android:layout_height="100dp" />
    <EditText

        android:hint="请输入密码"
        android:textColorHint="@color/colorAccent"
        android:inputType="textPassword"
        android:drawableLeft="@drawable/login"
        android:drawablePadding="10dp"
        android:paddingLeft="10dp"
        android:layout_width="200dp"
        android:layout_height="100dp" />
    <Button
        android:id="@+id/btn"
        android:text="登录"
        android:layout_width="52dp"
        android:layout_height="52dp" />







</LinearLayout>

java文件代码

package com.example.a86191.myedittext;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

public class MainActivity extends AppCompatActivity {
    private static final String TAG = "MainActivity";
    private  EditText et;
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Button btn=findViewById(R.id.btn);
      et= findViewById(R.id.et);
      btn.setOnClickListener(new View.OnClickListener() {
          @Override
          public void onClick(View view) {
             String text = et.getText().toString();
            
              Log.e(TAG, "输入的内容" +text);
          }
      });
    }
}

 

 

 

 

 

 

 

 

 

 

package com.example.a86191.myedittext;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ProgressBar;

public class MainActivity extends AppCompatActivity {
    private static final String TAG = "MainActivity";
    private  EditText et;
    private ProgressBar Progressbar;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        Progressbar =findViewById(R.id.bp);
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Button btn=findViewById(R.id.btn);
      et= findViewById(R.id.et);
      btn.setOnClickListener(new View.OnClickListener() {
          @Override
          public void onClick(View view) {
             String text = et.getText().toString();
            
              Log.e(TAG, "输入的内容" +text);
          }
      });
    }

    public void zw(View view) {
        if (Progressbar.getVisibility()==View.GONE){
            Progressbar.setVisibility(View.VISIBLE);
        }else{
            Progressbar.setVisibility(View.GONE);
        }
    }
}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    xmlns:android="http://schemas.android.com/apk/res/android">

    <EditText
       android:id="@+id/et"
       android:hint="请输入用户名"
        android:textColorHint="@color/colorAccent"
        android:inputType="phone"
android:drawableLeft="@drawable/login"
        android:drawablePadding="10dp"
        android:paddingLeft="10dp"
        android:layout_width="200dp"
        android:layout_height="100dp" />
    <EditText

        android:hint="请输入密码"
        android:textColorHint="@color/colorAccent"
        android:inputType="textPassword"
        android:drawableLeft="@drawable/login"
        android:drawablePadding="10dp"
        android:paddingLeft="10dp"
        android:layout_width="200dp"
        android:layout_height="100dp" />

    <Button
        android:id="@+id/btn"
        android:text="登录"
        android:layout_width="52dp"
        android:layout_height="52dp" />

    <ImageView
        android:layout_width="150dp"
        android:layout_height="100dp"
        android:scaleType="fitStart"
        android:src="@drawable/erzi" />

    <ProgressBar
        android:id="@+id/bp"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <Button
        android:onClick="zw"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="显示隐藏" />


</LinearLayout>