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android_note's Introduction

Android_Note

My_App

Button

''''<Button'''' ''''   android:id="@+id/button"'''' ''''   android:layout_width="match_parent"'''' ''''   android:layout_height="wrap_content" ''''   android:text="Button" ''''   android:textAllCaps="false"/>''''//是否显示大写

  • 两种方式:
  • 一、 ''''Public class MainActivity extends AppCompatActivity{ '''' @Override '''' protected void onCreate(Bundle savedInstanceState){ '''' super.onCreate(savedInstanceState); '''' setContentView(R.layout.activity_main); '''' Button button = (Button) findViewById(R.id.button); '''' button.setOnClickListener(new View.OnClickListener(){ '''' @Override '''' public void onClick(View v){ '''' // '''' } '''' }); '''' } '''' }''''
  • 二、 {% codeblock java %} Public class MainActivity extends AppCompatActivity{ @Override protected void onCreate(Bundle savedInstanceState){ super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Button button = (Button) findViewById(R.id.button); button.setOnClickListener(this); } @Override public void onClick(View v){ switch(v.getId()){ case R.id.button: // break; default: break; } } } {% endcodeblock %}

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